PDB Short entry for 3BX7
HEADER    DE NOVO PROTEIN, PROTEIN BINDING        11-JAN-08   3BX7              
TITLE     ENGINEERED HUMAN LIPOCALIN 2 (LCN2) IN COMPLEX WITH THE               
TITLE    2 EXTRACELLULAR DOMAIN OF HUMAN CTLA-4                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CYTOTOXIC T-LYMPHOCYTE-ASSOCIATED ANTIGEN 4;               
COMPND   3 CHAIN: C;                                                            
COMPND   4 SYNONYM: CTLA-4, CD152, CYTOTOXIC T-LYMPHOCYTE PROTEIN 4;            
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: ENGINEERED HUMAN LIPOCALIN 2;                              
COMPND   8 CHAIN: A;                                                            
COMPND   9 SYNONYM: ENGINEERED LCN2, ENGINEERED NEUTROPHIL-GELATINASE           
COMPND  10 ASSOCIATED LIPOCALIN, ENGINEERED SIDEROCALIN;                        
COMPND  11 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 GENE: CTLA4, CD152;                                                  
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3);                                
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PCTLA4-8;                                 
SOURCE   9 MOL_ID: 2;                                                           
SOURCE  10 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  11 ORGANISM_COMMON: HUMAN;                                              
SOURCE  12 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  13 EXPRESSION_SYSTEM_STRAIN: W3110;                                     
SOURCE  14 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  15 EXPRESSION_SYSTEM_PLASMID: PNGAL62                                   
KEYWDS    PROTEIN DESIGN, PROTEIN-PROTEIN COMPLEX, GLYCOPROTEIN,                
KEYWDS   2 IMMUNOGLOBULIN DOMAIN, POLYMORPHISM, TRANSMEMBRANE PROTEIN,          
KEYWDS   3 DE NOVO PROTEIN, PROTEIN BINDING                                     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.L.SCHONFELD,L.CHATWELL,A.SKERRA                                     
REVDAT   1   20-JAN-09 3BX7    0                                                
JRNL        AUTH   D.L.SCHONFELD,G.MATSCHINER,L.CHATWELL,S.TRENTMANN,           
JRNL        AUTH 2 S.SCHLEHUBER,A.HOHLBAUM,A.SKERRA                             
JRNL        TITL   HIGH AFFINITY MOLECULAR RECOGNITION AND FUNCTIONAL           
JRNL        TITL 2 BLOCKADE OF CTLA-4 BY AN ENGINEERED HUMAN LIPOCALIN          
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU,             
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 40457                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.209                           
REMARK   3   FREE R VALUE                     : 0.226                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2036                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.10                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.18                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 96.80                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2910                       
REMARK   3   BIN FREE R VALUE                    : 0.3200                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2287                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 186                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 39.06                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 5.04800                                              
REMARK   3    B22 (A**2) : 5.04800                                              
REMARK   3    B33 (A**2) : -10.09700                                            
REMARK   3    B12 (A**2) : 0.47000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : NULL                            
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.399 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.251 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 2.098 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 3.144 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : 48.79                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3  TOPOLOGY FILE  2   : NULL                                           
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 3BX7 COMPLIES WITH FORMAT V. 3.20, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-FEB-08.                  
REMARK 100 THE RCSB ID CODE IS RCSB046068.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 31-OCT-06                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 8.4                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : BESSY                              
REMARK 200  BEAMLINE                       : 14.1                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.95373                            
REMARK 200  MONOCHROMATOR                  : SI-111 CRYSTAL                     
REMARK 200  OPTICS                         : MIRROR                             
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 225 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 40987                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 25.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.9                               
REMARK 200  DATA REDUNDANCY                : 8.600                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 4.90000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 30.0000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.18                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 96.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 8.10                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 41.90000                           
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.300                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: PDB ENTRY 1I85 CHAIN C, PDB ENTRY 1DFV CHAIN B       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): NULL                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): NULL                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.4 M NA-MALONATE, PH 8.4, VAPOR         
REMARK 280  DIFFUSION, SITTING DROP, TEMPERATURE 293.15K                        
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+2/3                                            
REMARK 290       3555   -X+Y,-X,Z+1/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+1/3                                           
REMARK 290       6555   -X,-X+Y,-Z+2/3                                          
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       55.30467            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       27.65233            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       27.65233            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       55.30467            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 5580 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 27280 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -34.5 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, A                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      -55.30467            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     PRO C   123                                                      
REMARK 465     ASP C   124                                                      
REMARK 465     SER C   125                                                      
REMARK 465     ASP C   126                                                      
REMARK 465     GLN A     1                                                      
REMARK 465     ASP A     2                                                      
REMARK 465     SER A     3                                                      
REMARK 465     THR A     4                                                      
REMARK 465     SER A     5                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     ASP C   65   CG    OD1   OD2                                     
REMARK 480     ASP A    6   CG    OD1   OD2                                     
REMARK 480     LYS A   98   CG    CD    CE    NZ                                
REMARK 480     ASP A  102   CG    OD1   OD2                                     
REMARK 480     LYS A  103   CG    CD    CE    NZ                                
REMARK 480     ASP A  128   CG    OD1   OD2                                     
REMARK 480     ASN A  129   CG    OD1   ND2                                     
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   CB   LYS A   103     OD1  ASP A   128              1.83            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    PRO C 121       35.55    -56.25                                   
REMARK 500    LYS A  62       -6.28     81.64                                   
REMARK 500    LYS A  75      161.11    179.44                                   
REMARK 500    TYR A 115      -28.47     60.36                                   
REMARK 500    GLN A 117      -58.14   -136.65                                   
REMARK 500    CYS A 175      -26.30     58.29                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 230        DISTANCE =  6.25 ANGSTROMS                       
REMARK 525    HOH C 205        DISTANCE =  8.39 ANGSTROMS                       
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3BX8   RELATED DB: PDB                                   
REMARK 900 ENGINEERED HUMAN LCN2                                                
DBREF  3BX7 C    3   126  UNP    P16410   CTLA4_HUMAN     38    161             
DBREF  3BX7 A    1   178  PDB    3BX7     3BX7             1    178             
SEQRES   1 C  124  MET HIS VAL ALA GLN PRO ALA VAL VAL LEU ALA SER SER          
SEQRES   2 C  124  ARG GLY ILE ALA SER PHE VAL CYS GLU TYR ALA SER PRO          
SEQRES   3 C  124  GLY LYS ALA THR GLU VAL ARG VAL THR VAL LEU ARG GLN          
SEQRES   4 C  124  ALA ASP SER GLN VAL THR GLU VAL CYS ALA ALA THR TYR          
SEQRES   5 C  124  MET MET GLY ASN GLU LEU THR PHE LEU ASP ASP SER ILE          
SEQRES   6 C  124  CYS THR GLY THR SER SER GLY ASN GLN VAL ASN LEU THR          
SEQRES   7 C  124  ILE GLN GLY LEU ARG ALA MET ASP THR GLY LEU TYR ILE          
SEQRES   8 C  124  CYS LYS VAL GLU LEU MET TYR PRO PRO PRO TYR TYR LEU          
SEQRES   9 C  124  GLY ILE GLY ASN GLY THR GLN ILE TYR VAL ILE ASP PRO          
SEQRES  10 C  124  GLU PRO CYS PRO ASP SER ASP                                  
SEQRES   1 A  178  GLN ASP SER THR SER ASP LEU ILE PRO ALA PRO PRO LEU          
SEQRES   2 A  178  SER LYS VAL PRO LEU GLN GLN ASN PHE GLN ASP ASN GLN          
SEQRES   3 A  178  PHE HIS GLY LYS TRP TYR VAL VAL GLY LEU ALA GLY ASN          
SEQRES   4 A  178  ARG ILE LEU ARG ASP ASP GLN HIS PRO MET ASN MET TYR          
SEQRES   5 A  178  ALA THR ILE TYR GLU LEU LYS GLU ASP LYS SER TYR ASN          
SEQRES   6 A  178  VAL THR SER VAL ILE SER SER HIS LYS LYS CYS GLU TYR          
SEQRES   7 A  178  THR ILE ALA THR PHE VAL PRO GLY SER GLN PRO GLY GLU          
SEQRES   8 A  178  PHE THR LEU GLY ASN ILE LYS SER TYR GLY ASP LYS THR          
SEQRES   9 A  178  SER TYR LEU VAL ARG VAL VAL SER THR ASP TYR ASN GLN          
SEQRES  10 A  178  TYR ALA VAL VAL PHE PHE LYS LEU ALA GLU ASP ASN ALA          
SEQRES  11 A  178  GLU PHE PHE ALA ILE THR ILE TYR GLY ARG THR LYS GLU          
SEQRES  12 A  178  LEU ALA SER GLU LEU LYS GLU ASN PHE ILE ARG PHE SER          
SEQRES  13 A  178  LYS SER LEU GLY LEU PRO GLU ASN HIS ILE VAL PHE PRO          
SEQRES  14 A  178  VAL PRO ILE ASP GLN CYS ILE ASP GLY                          
FORMUL   3  HOH   *186(H2 O)                                                    
HELIX    1   1 ARG C   85  THR C   89  5                                   5    
HELIX    2   2 PRO A   12  VAL A   16  5                                   5    
HELIX    3   3 GLN A   23  HIS A   28  1                                   6    
HELIX    4   4 ASN A   96  TYR A  100  5                                   5    
HELIX    5   5 ALA A  145  LEU A  159  1                                  15    
HELIX    6   6 PRO A  162  ASN A  164  5                                   3    
SHEET    1   A 5 VAL C  10  LEU C  12  0                                        
SHEET    2   A 5 THR C 112  TYR C 115  1  O  GLN C 113   N  VAL C  11           
SHEET    3   A 5 GLY C  90  TYR C 100 -1  N  GLY C  90   O  ILE C 114           
SHEET    4   A 5 GLU C  33  ALA C  42 -1  N  GLU C  33   O  TYR C 100           
SHEET    5   A 5 GLN C  45  TYR C  54 -1  O  VAL C  49   N  VAL C  38           
SHEET    1   B 4 VAL C  10  LEU C  12  0                                        
SHEET    2   B 4 THR C 112  TYR C 115  1  O  GLN C 113   N  VAL C  11           
SHEET    3   B 4 GLY C  90  TYR C 100 -1  N  GLY C  90   O  ILE C 114           
SHEET    4   B 4 TYR C 105  ILE C 108 -1  O  TYR C 105   N  LEU C  98           
SHEET    1   C 3 ALA C  19  GLU C  24  0                                        
SHEET    2   C 3 GLN C  76  ILE C  81 -1  O  ILE C  81   N  ALA C  19           
SHEET    3   C 3 CYS C  68  SER C  73 -1  N  THR C  71   O  ASN C  78           
SHEET    1   D10 ILE A 166  VAL A 167  0                                        
SHEET    2   D10 GLY A  29  GLY A  38 -1  N  LEU A  36   O  VAL A 167           
SHEET    3   D10 ALA A 130  GLY A 139 -1  O  GLY A 139   N  TYR A  32           
SHEET    4   D10 TYR A 118  GLU A 127 -1  N  LEU A 125   O  PHE A 132           
SHEET    5   D10 SER A 105  THR A 113 -1  N  SER A 105   O  ALA A 126           
SHEET    6   D10 GLU A  91  LEU A  94 -1  N  PHE A  92   O  VAL A 108           
SHEET    7   D10 LYS A  75  PRO A  85 -1  N  VAL A  84   O  THR A  93           
SHEET    8   D10 TYR A  64  SER A  72 -1  N  VAL A  66   O  ALA A  81           
SHEET    9   D10 ALA A  53  LEU A  58 -1  N  ILE A  55   O  THR A  67           
SHEET   10   D10 GLY A  29  GLY A  38 -1  N  TRP A  31   O  THR A  54           
SSBOND   1 CYS C   23    CYS C   94                          1555   1555  2.03  
SSBOND   2 CYS C   50    CYS C   68                          1555   1555  2.03  
SSBOND   3 CYS A   76    CYS A  175                          1555   1555  2.03  
CISPEP   1 TYR C  100    PRO C  101          0        -0.34                     
CISPEP   2 PRO C  102    PRO C  103          0         0.21                     
CRYST1  120.706  120.706   82.957  90.00  90.00 120.00 P 32 2 1      6          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.008285  0.004783  0.000000        0.00000                         
SCALE2      0.000000  0.009566  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012054        0.00000