PDB Short entry for 2KQT
HEADER    TRANSPORT PROTEIN                       18-NOV-09   2KQT              
TITLE     SOLID-STATE NMR STRUCTURE OF THE M2 TRANSMEMBRANE PEPTIDE OF THE      
TITLE    2 INFLUENZA A VIRUS IN DMPC LIPID BILAYERS BOUND TO DEUTERATED         
TITLE    3 AMANTADINE                                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: M2 PROTEIN;                                                
COMPND   3 CHAIN: A, B, C, D;                                                   
COMPND   4 FRAGMENT: RESIDUES 22-46;                                            
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: SOLID-PHASE SYNTHESIS                                 
KEYWDS    INFLUENZA, TRANSMEMBRANE, AMANTADINE, REDOR, TRANSPORT PROTEIN        
EXPDTA    SOLID-STATE NMR                                                       
NUMMDL    17                                                                    
AUTHOR    S.D.CADY,K.SCHMIDT-ROHR,J.WANG,C.S.SOTO,W.F.DEGRADO,M.HONG            
REVDAT   5   14-JUN-23 2KQT    1       REMARK                                   
REVDAT   4   26-FEB-20 2KQT    1       REMARK                                   
REVDAT   3   26-OCT-11 2KQT    1       VERSN                                    
REVDAT   2   26-JAN-11 2KQT    1       REMARK JRNL                              
REVDAT   1   09-FEB-10 2KQT    0                                                
JRNL        AUTH   S.D.CADY,K.SCHMIDT-ROHR,J.WANG,C.SOTO,W.F.DEGRADO,M.HONG     
JRNL        TITL   STRUCTURE OF THE AMANTADINE BINDING SITE OF INFLUENZA M2     
JRNL        TITL 2 PROTON CHANNELS IN LIPID BILAYERS                            
JRNL        REF    NATURE                        V. 463   689 2010              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   20130653                                                     
JRNL        DOI    10.1038/NATURE08722                                          
REMARK   0                                                                      
REMARK   0 THIS ENTRY 2KQT REFLECTS AN ALTERNATIVE MODELING OF THE              
REMARK   0 ORIGINAL STRUCTURAL DATA 2H95 AND 2KAD                               
REMARK   0 ORIGINAL DATA REFERENCE 1                                            
REMARK   0  PDB ID: 2KAD                                                        
REMARK   0  AUTH   S.D.CADY,T.V.MISHANINA,M.HONG                                
REMARK   0  TITL   STRUCTURE OF AMANTADINE-BOUND M2 TRANSMEMBRANE PEPTIDE OF    
REMARK   0  TITL 2 INFLUENZA A IN LIPID BILAYERS FROM MAGIC-ANGLE-SPINNING      
REMARK   0  TITL 3 SOLID-STATE NMR: THE ROLE OF SER31 IN AMANTADINE BINDING.    
REMARK   0  REF    J.MOL.BIOL.                   V. 385  1127 2009              
REMARK   0  REFN                   ISSN 0022-2836                               
REMARK   0  PMID   19061899                                                     
REMARK   0  DOI    10.1016/J.JMB.2008.11.022                                    
REMARK   0 ORIGINAL DATA REFERENCE 2                                            
REMARK   0  PDB ID: 2H95                                                        
REMARK   0  AUTH   J.HU,T.ASBURY,S.ACHUTHAN,C.LI,R.BERTRAM,J.R.QUINE,R.FU,      
REMARK   0  AUTH 2 T.A.CROSS                                                    
REMARK   0  TITL   BACKBONE STRUCTURE OF THE AMANTADINE-BLOCKED TRANS-MEMBRANE  
REMARK   0  TITL 2 DOMAIN M2 PROTON CHANNEL FROM INFLUENZA A VIRUS.             
REMARK   0  REF    BIOPHYS.J.                    V.  92  4335 2007              
REMARK   0  REFN                   ISSN 0006-3495                               
REMARK   0  PMID   17384070                                                     
REMARK   0  DOI    10.1529/BIOPHYSJ.106.090183                                  
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : TOPSPIN 1.3, X-PLOR_NIH, IN-HOUSE METHOD             
REMARK   3   AUTHORS     : BRUKER BIOSPIN (TOPSPIN), SCHWIETERS, KUSZEWSKI,     
REMARK   3                 TJANDRA AND CLORE (X-PLOR_NIH, IN-HOUSE METHOD)      
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS:                                           
REMARK   3  THE TEMPERATURE WAS INITIALLY SET TO 1,000,000K AND DECREASED BY    
REMARK   3  10% EVERY 100 STEPS UNTIL A TEMPERATURE OF 25 K WAS REACHED. THE    
REMARK   3  CONSTANTS (CI-CIV) WERE OBTAINED THROUGH A TRIAL-AND-ERROR          
REMARK   3  PROCESS. SOME SIDE CHAIN ROTAMERS WERE CHANGED TO MAXIMIZE          
REMARK   3  AGREEMENT WITH THE RADIAL DISTANCES., AN ENSEMBLE OF MODELS WAS     
REMARK   3  OBTAINED BY SELECTING THE TOP SCORING MODEL AFTER ONE ROUND OF      
REMARK   3  MONTE CARLO/SIMULATED ANNEALING MINIMIZATION AND REFINING AGAIN     
REMARK   3  WITH THE INVERSE KINEMATICS ALGORITHM. THE DISTANCE POTENTIAL       
REMARK   3  CONSTANT CIII WAS SET TO 50 KCAL/MOL-RADIANS^2. SINCE THE RADIAL    
REMARK   3  DISTANCE PROVIDED EXCELLENT RESTRAINTS BETWEEN THE DRUG AND M2, WE  
REMARK   3  WERE ABLE TO POSITION THE AMANTIDINE MOLECULE NEAR WITH S31         
REMARK   3  WITHOUT THE NEED FOR FURTHER MINIMIZATION.                          
REMARK   3  THE POSITION OF THE AMANTADINE LIGAND (PDB CODE 308) IS IDENTICAL   
REMARK   3  IN ALL OF THE MINIMIZED STRUCTURE SINCE IT IS THE AVERAGE LIGAND    
REMARK   3  POSITION RELATIVE TO THE BACKBONE. WE HAVE MEASURED A 13C-2H        
REMARK   3  DIPOLAR COUPLING FROM SEVERAL PEPTIDE BACKBONE AND SIDECHAIN        
REMARK   3  CARBONS TO THE DEUTERONS ON THE 308 LIGAND. WE SIMULATED THE THE    
REMARK   3  RADIUS OF THE M2 CHANNEL PORE FOR THE SITES WHERE WE OBSERVED 13C-  
REMARK   3  2H DIPOLAR COUPLING, AND FOUND PORE RADII FOR THESE SITES THAT      
REMARK   3  CORRESPONDED WITH THE MEASURED 13C-2H DIPOLAR COUPLING AT THAT      
REMARK   3  SITE. THUS, IN THE FINAL STRUCTURE MINIMIZATION, WE USED THE PORE   
REMARK   3  RADII AS A CONSTRAINT RATHER THAN PEPTIDE-DRUG DISTANCES SINCE THE  
REMARK   3  LIGAND IS ROTATING IN THE CHANNEL.                                  
REMARK   4                                                                      
REMARK   4 2KQT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-NOV-09.                  
REMARK 100 THE DEPOSITION ID IS D_1000101458.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 243                                
REMARK 210  PH                             : 7.5                                
REMARK 210  IONIC STRENGTH                 : NULL                               
REMARK 210  PRESSURE                       : AMBIENT                            
REMARK 210  SAMPLE CONTENTS                : 5.8 MG [U-99% 13C; U-99% 15N] AT   
REMARK 210                                   S31, I32 AND D44 M2-TM, 21.6 MG    
REMARK 210                                   DMPC, 10 MM NAH2PO4, 10 MM         
REMARK 210                                   NA2HPO4, 1 MM EDTA, 0.1 MM NAN3,   
REMARK 210                                   .42 MG [U-2H] D15-1-               
REMARK 210                                   AMINOADAMANTANE*HCL, 10MM PH 7.5   
REMARK 210                                   PHOSPHATE BUFFER, 50% HYDRATION;   
REMARK 210                                   5.0 MG [U-99% 13C; U-99% 15N] AT   
REMARK 210                                   S31, I32 AND D44 M2-TM, 10.4 MG    
REMARK 210                                   DMPC, 10 MM NAH2PO4, 10 MM         
REMARK 210                                   NA2HPO4, 1 MM EDTA, 0.1 MM NAN3,   
REMARK 210                                   0.09 MG [U-2H] D15-1-              
REMARK 210                                   AMINOADAMANTANE*HCL, 10MM PH 7.5   
REMARK 210                                   PHOSPHATE BUFFER, 50% HYDRATION;   
REMARK 210                                   5.2 MG [U-99% 13C; U-99% 15N] AT   
REMARK 210                                   L26, V27, A29 AND G34 M2-TM,       
REMARK 210                                   19.9 MG DMPC, 10 MM NAH2PO4, 10    
REMARK 210                                   MM NA2HPO4, 1 MM EDTA, 0.1 MM      
REMARK 210                                   NAN3, 0.38 MG [U-2H] D15-1-        
REMARK 210                                   AMINOADAMANTANE*HCL, 10MM PH 7.5   
REMARK 210                                   PHOSPHATE BUFFER, 50% HYDRATION;   
REMARK 210                                   7 MG [U-99% 13C; U-99% 15N] AT     
REMARK 210                                   L26, V27, A29 AND G34 M2-TM, 27    
REMARK 210                                   MG DMPC, 10 MM NAH2PO4, 10 MM      
REMARK 210                                   NA2HPO4, 1 MM EDTA, 0.1 MM NAN3,   
REMARK 210                                   2.0 MG [U-2H] D15-1-               
REMARK 210                                   AMINOADAMANTANE*HCL, 10MM PH 7.5   
REMARK 210                                   PHOSPHATE BUFFER, 50% HYDRATION;   
REMARK 210                                   7 MG [U-99% 13C; U-99% 15N] AT     
REMARK 210                                   L26, V27, A29 AND G34 M2-TM, 27    
REMARK 210                                   MG DMPC, 10 MM NAH2PO4, 10 MM      
REMARK 210                                   NA2HPO, 1 MM EDTA, 0.1 MM NAN3,    
REMARK 210                                   0.5 MG [U-2H] D15-1-               
REMARK 210                                   AMINOADAMANTANE*HCL, 10MM PH 7.5   
REMARK 210                                   PHOSPHATE BUFFER, 50% HYDRATION    
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : 2D 13C-13C SPIN DIFFUSION; 2D      
REMARK 210                                   13C-15N HETCOR; 1D 2H-13C REDOR,   
REMARK 210                                   SINGLE 13C PULSE; 1D 2H-13C        
REMARK 210                                   REDOR, SINGLE 2H PULSE; 2H         
REMARK 210                                   STATIC QUADRUPOLAR ECHO            
REMARK 210  SPECTROMETER FIELD STRENGTH    : 400 MHZ; 600 MHZ                   
REMARK 210  SPECTROMETER MODEL             : AVANCE                             
REMARK 210  SPECTROMETER MANUFACTURER      : BRUKER                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : TOPSPIN 1.3, XWINNMR               
REMARK 210   METHOD USED                   : SIMULATED ANNEALING, MONTE CARLO   
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 24                                 
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 17                                 
REMARK 210 CONFORMERS, SELECTION CRITERIA  : STRUCTURES WITH THE LEAST          
REMARK 210                                   RESTRAINT VIOLATIONS               
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1                   
REMARK 210                                                                      
REMARK 210 REMARK: NULL                                                         
REMARK 217                                                                      
REMARK 217 SOLID STATE NMR STUDY                                                
REMARK 217 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLID              
REMARK 217 STATE NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT           
REMARK 217 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON              
REMARK 217 THESE RECORDS ARE MEANINGLESS.                                       
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 APPLY THE FOLLOWING TO CHAINS: A, B, C, D                            
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 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  1 SER A  23     -167.72   -123.82                                   
REMARK 500  1 SER B  23     -167.72   -123.82                                   
REMARK 500  1 SER C  23     -167.72   -123.82                                   
REMARK 500  1 SER D  23     -167.72   -123.82                                   
REMARK 500  2 SER A  23     -167.89   -122.24                                   
REMARK 500  2 SER B  23     -167.89   -122.24                                   
REMARK 500  2 SER C  23     -167.89   -122.24                                   
REMARK 500  2 SER D  23     -167.89   -122.24                                   
REMARK 500  3 SER A  23     -166.76   -121.93                                   
REMARK 500  3 SER B  23     -166.76   -121.93                                   
REMARK 500  3 SER C  23     -166.76   -121.93                                   
REMARK 500  3 SER D  23     -166.76   -121.93                                   
REMARK 500  4 SER A  23     -167.19   -121.59                                   
REMARK 500  4 SER B  23     -167.19   -121.59                                   
REMARK 500  4 SER C  23     -167.19   -121.59                                   
REMARK 500  4 SER D  23     -167.19   -121.59                                   
REMARK 500  5 SER A  23     -166.86   -121.03                                   
REMARK 500  5 SER B  23     -166.86   -121.03                                   
REMARK 500  5 SER C  23     -166.86   -121.03                                   
REMARK 500  5 SER D  23     -166.86   -121.03                                   
REMARK 500  6 SER A  23     -167.07   -121.08                                   
REMARK 500  6 SER B  23     -167.07   -121.08                                   
REMARK 500  6 SER C  23     -167.07   -121.08                                   
REMARK 500  6 SER D  23     -167.07   -121.08                                   
REMARK 500  7 SER A  23     -167.36   -121.66                                   
REMARK 500  7 SER B  23     -167.36   -121.66                                   
REMARK 500  7 SER C  23     -167.36   -121.66                                   
REMARK 500  7 SER D  23     -167.36   -121.66                                   
REMARK 500  8 SER A  23     -167.85   -122.81                                   
REMARK 500  8 SER B  23     -167.85   -122.81                                   
REMARK 500  8 SER C  23     -167.85   -122.81                                   
REMARK 500  8 SER D  23     -167.85   -122.81                                   
REMARK 500  9 SER A  23     -167.42   -122.37                                   
REMARK 500  9 SER B  23     -167.42   -122.37                                   
REMARK 500  9 SER C  23     -167.42   -122.37                                   
REMARK 500  9 SER D  23     -167.42   -122.37                                   
REMARK 500 10 SER A  23     -166.78   -123.11                                   
REMARK 500 10 SER B  23     -166.78   -123.11                                   
REMARK 500 10 SER C  23     -166.78   -123.11                                   
REMARK 500 10 SER D  23     -166.78   -123.11                                   
REMARK 500 11 SER A  23     -166.50   -122.89                                   
REMARK 500 11 SER B  23     -166.50   -122.89                                   
REMARK 500 11 SER C  23     -166.50   -122.89                                   
REMARK 500 11 SER D  23     -166.50   -122.89                                   
REMARK 500 12 SER A  23     -165.70   -124.50                                   
REMARK 500 12 SER B  23     -165.70   -124.50                                   
REMARK 500 12 SER C  23     -165.70   -124.50                                   
REMARK 500 12 SER D  23     -165.70   -124.50                                   
REMARK 500 13 SER A  23     -165.71   -124.12                                   
REMARK 500 13 SER B  23     -165.71   -124.12                                   
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS      68 RAMACHANDRAN OUTLIERS.                        
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500  1 GLY A  34        -15.25                                           
REMARK 500  1 GLY B  34        -15.25                                           
REMARK 500  1 GLY C  34        -15.25                                           
REMARK 500  1 GLY D  34        -15.25                                           
REMARK 500  2 GLY A  34        -15.32                                           
REMARK 500  2 GLY B  34        -15.32                                           
REMARK 500  2 GLY C  34        -15.32                                           
REMARK 500  2 GLY D  34        -15.32                                           
REMARK 500  3 GLY A  34        -15.22                                           
REMARK 500  3 GLY B  34        -15.22                                           
REMARK 500  3 GLY C  34        -15.22                                           
REMARK 500  3 GLY D  34        -15.22                                           
REMARK 500  4 GLY A  34        -15.25                                           
REMARK 500  4 GLY B  34        -15.25                                           
REMARK 500  4 GLY C  34        -15.25                                           
REMARK 500  4 GLY D  34        -15.25                                           
REMARK 500  5 GLY A  34        -15.24                                           
REMARK 500  5 GLY B  34        -15.24                                           
REMARK 500  5 GLY C  34        -15.24                                           
REMARK 500  5 GLY D  34        -15.24                                           
REMARK 500  6 GLY A  34        -15.24                                           
REMARK 500  6 GLY B  34        -15.24                                           
REMARK 500  6 GLY C  34        -15.24                                           
REMARK 500  6 GLY D  34        -15.24                                           
REMARK 500  7 GLY A  34        -15.23                                           
REMARK 500  7 GLY B  34        -15.23                                           
REMARK 500  7 GLY C  34        -15.23                                           
REMARK 500  7 GLY D  34        -15.23                                           
REMARK 500  8 GLY A  34        -15.25                                           
REMARK 500  8 GLY B  34        -15.25                                           
REMARK 500  8 GLY C  34        -15.25                                           
REMARK 500  8 GLY D  34        -15.25                                           
REMARK 500  9 GLY A  34        -15.27                                           
REMARK 500  9 GLY B  34        -15.27                                           
REMARK 500  9 GLY C  34        -15.27                                           
REMARK 500  9 GLY D  34        -15.27                                           
REMARK 500 10 GLY A  34        -15.23                                           
REMARK 500 10 GLY B  34        -15.23                                           
REMARK 500 10 GLY C  34        -15.23                                           
REMARK 500 10 GLY D  34        -15.23                                           
REMARK 500 11 GLY A  34        -15.27                                           
REMARK 500 11 GLY B  34        -15.27                                           
REMARK 500 11 GLY C  34        -15.27                                           
REMARK 500 11 GLY D  34        -15.27                                           
REMARK 500 12 GLY A  34        -15.28                                           
REMARK 500 12 GLY B  34        -15.28                                           
REMARK 500 12 GLY C  34        -15.28                                           
REMARK 500 12 GLY D  34        -15.28                                           
REMARK 500 13 GLY A  34        -15.24                                           
REMARK 500 13 GLY B  34        -15.24                                           
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS      68 MAIN CHAIN PLANARITY DEVIATIONS.              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2KAD   RELATED DB: PDB                                   
REMARK 900 MAGIC-ANGLE-SPINNING SOLID-STATE NMR STRUCTURE OF INFLUENZA A M2     
REMARK 900 TRANSMEMBRANE DOMAIN                                                 
REMARK 900 RELATED ID: 2H95   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE AMANTADINE-BLOCKED INFLUENZA A M2 PROTON CHANNEL    
REMARK 900 TRANS-MEMBRANE DOMAIN BY SOLID-STATE NMR SPECTROSCOPY                
REMARK 900 RELATED ID: 2RLF   RELATED DB: PDB                                   
REMARK 900 PROTON CHANNEL M2 FROM INFLUENZA A IN COMPLEX WITH INHIBITOR         
REMARK 900 RIMANTADINE                                                          
REMARK 900 RELATED ID: 3C9J   RELATED DB: PDB                                   
REMARK 900 THE CRYSTAL STRUCTURE OF TRANSMEMBRANE DOMAIN OF M2 PROTEIN AND      
REMARK 900 AMANTADINE COMPLEX                                                   
REMARK 900 RELATED ID: 1NYJ   RELATED DB: PDB                                   
REMARK 900 THE CLOSED STATE STRUCTURE OF M2 PROTEIN H+ CHANNEL BY SOLID STATE   
REMARK 900 NMR SPECTROSCOPY                                                     
REMARK 900 RELATED ID: 3BKD   RELATED DB: PDB                                   
REMARK 900 HIGH RESOLUTION CRYSTAL STRUCTURE OF TRANSMEMBRANE DOMAIN OF M2      
REMARK 900 PROTEIN                                                              
REMARK 900 RELATED ID: 16612   RELATED DB: BMRB                                 
DBREF  2KQT A   22    46  UNP    Q9YP62   Q9YP62_9INFA    22     46             
DBREF  2KQT B   22    46  UNP    Q9YP62   Q9YP62_9INFA    22     46             
DBREF  2KQT C   22    46  UNP    Q9YP62   Q9YP62_9INFA    22     46             
DBREF  2KQT D   22    46  UNP    Q9YP62   Q9YP62_9INFA    22     46             
SEQRES   1 A   25  SER SER ASP PRO LEU VAL VAL ALA ALA SER ILE ILE GLY          
SEQRES   2 A   25  ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU              
SEQRES   1 B   25  SER SER ASP PRO LEU VAL VAL ALA ALA SER ILE ILE GLY          
SEQRES   2 B   25  ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU              
SEQRES   1 C   25  SER SER ASP PRO LEU VAL VAL ALA ALA SER ILE ILE GLY          
SEQRES   2 C   25  ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU              
SEQRES   1 D   25  SER SER ASP PRO LEU VAL VAL ALA ALA SER ILE ILE GLY          
SEQRES   2 D   25  ILE LEU HIS LEU ILE LEU TRP ILE LEU ASP ARG LEU              
HET    308  C   1      29                                                       
HETNAM     308 (3S,5S,7S)-TRICYCLO[3.3.1.1~3,7~]DECAN-1-AMINE                   
HETSYN     308 AMANTADINE                                                       
FORMUL   5  308    C10 H17 N                                                    
HELIX    1   1 ASP A   24  LEU A   46  1                                  23    
HELIX    2   2 ASP B   24  LEU B   46  1                                  23    
HELIX    3   3 ASP C   24  LEU C   46  1                                  23    
HELIX    4   4 ASP D   24  LEU D   46  1                                  23    
CRYST1    1.000    1.000    1.000  90.00  90.00  90.00 P 1           1          
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      1.000000  0.000000  0.000000        0.00000                         
SCALE2      0.000000  1.000000  0.000000        0.00000                         
SCALE3      0.000000  0.000000  1.000000        0.00000