PDB Short entry for 1IXG HEADER PHOSPHATE TRANSPORT 01-AUG-96 1IXG TITLE PHOSPHATE-BINDING PROTEIN MUTANT WITH THR 141 REPLACED BY ASP (T141D), TITLE 2 COMPLEXED WITH PHOSPATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: PHOSPHATE-BINDING PROTEIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 STRAIN: PAN92; SOURCE 5 CELL_LINE: AN2538; SOURCE 6 CELLULAR_LOCATION: PERIPLASM; SOURCE 7 GENE: PHO-S; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 9 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 10 EXPRESSION_SYSTEM_STRAIN: PIBI24; SOURCE 11 EXPRESSION_SYSTEM_CELL_LINE: AN2538; SOURCE 12 EXPRESSION_SYSTEM_CELLULAR_LOCATION: PERIPLASM KEYWDS PHOSPHATE TRANSPORT, ULTRA HIGH RESOLUTION, PHOSPHATE BINDIN PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR Z.WANG,H.LUECKE,F.A.QUIOCHO REVDAT 4 09-AUG-23 1IXG 1 REMARK REVDAT 3 03-NOV-21 1IXG 1 REMARK SEQADV REVDAT 2 24-FEB-09 1IXG 1 VERSN REVDAT 1 04-FEB-98 1IXG 0 JRNL AUTH Z.WANG,H.LUECKE,N.YAO,F.A.QUIOCHO JRNL TITL A LOW ENERGY SHORT HYDROGEN BOND IN VERY HIGH RESOLUTION JRNL TITL 2 STRUCTURES OF PROTEIN RECEPTOR--PHOSPHATE COMPLEXES. JRNL REF NAT.STRUCT.BIOL. V. 4 519 1997 JRNL REFN ISSN 1072-8368 JRNL PMID 9228942 JRNL DOI 10.1038/NSB0797-519 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH P.S.LEDVINA,N.YAO,A.CHOUDHARY,F.A.QUIOCHO REMARK 1 TITL NEGATIVE ELECTROSTATIC SURFACE POTENTIAL OF PROTEIN SITES REMARK 1 TITL 2 SPECIFIC FOR ANIONIC LIGANDS REMARK 1 REF PROC.NATL.ACAD.SCI.USA V. 93 6786 1996 REMARK 1 REFN ISSN 0027-8424 REMARK 1 REFERENCE 2 REMARK 1 AUTH N.YAO,P.S.LEDVINA,A.CHOUDHARY,F.A.QUIOCHO REMARK 1 TITL MODULATION OF A SALT LINK DOES NOT AFFECT BINDING OF REMARK 1 TITL 2 PHOSPHATE TO ITS SPECIFIC ACTIVE TRANSPORT RECEPTOR REMARK 1 REF BIOCHEMISTRY V. 35 2079 1996 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 3 REMARK 1 AUTH Z.WANG,A.CHOUDHARY,P.S.LEDVINA,F.A.QUIOCHO REMARK 1 TITL FINE TUNING THE SPECIFICITY OF THE PERIPLASMIC PHOSPHATE REMARK 1 TITL 2 TRANSPORT RECEPTOR. SITE-DIRECTED MUTAGENESIS, LIGAND REMARK 1 TITL 3 BINDING, AND CRYSTALLOGRAPHIC STUDIES REMARK 1 REF J.BIOL.CHEM. V. 269 25091 1994 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 4 REMARK 1 AUTH Z.CHANG,A.CHOUDHARY,R.LATHIGRA,F.A.QUIOCHO REMARK 1 TITL THE IMMUNODOMINANT 38-KDA LIPOPROTEIN ANTIGEN OF REMARK 1 TITL 2 MYCOBACTERIUM TUBERCULOSIS IS A PHOSPHATE-BINDING PROTEIN REMARK 1 REF J.BIOL.CHEM. V. 269 1956 1994 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 5 REMARK 1 AUTH H.LUECKE,F.A.QUIOCHO REMARK 1 TITL HIGH SPECIFICITY OF A PHOSPHATE TRANSPORT PROTEIN DETERMINED REMARK 1 TITL 2 BY HYDROGEN BONDS REMARK 1 REF NATURE V. 347 402 1990 REMARK 1 REFN ISSN 0028-0836 REMARK 2 REMARK 2 RESOLUTION. 1.05 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-96 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.05 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 28.10 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 71.7 REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : EVERY 10TH REFLECTION REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.112 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.109 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.139 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 11169 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 111699 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : 0.104 REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : 0.101 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.130 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 9.900 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 9905 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 99460 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2439 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 0 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 3120.5 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 546.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 6 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 28566 REMARK 3 NUMBER OF RESTRAINTS : 0 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : NULL REMARK 3 ANGLE DISTANCES (A) : NULL REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: MOEWS & KRETSINGER REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : NULL REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1IXG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000174287. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JUL-95 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL7-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0800 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 111988 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.050 REMARK 200 RESOLUTION RANGE LOW (A) : 28.100 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 71.7 REMARK 200 DATA REDUNDANCY : 7.700 REMARK 200 R MERGE (I) : 0.04800 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 29.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.05 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.09 REMARK 200 COMPLETENESS FOR SHELL (%) : 32.2 REMARK 200 DATA REDUNDANCY IN SHELL : 3.70 REMARK 200 R MERGE FOR SHELL (I) : 0.15700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: SHELXL-96 REMARK 200 STARTING MODEL: PDB ENTRY 1PBP REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 40.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 4.5 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-Y+1/2,-Z 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 -1.000000 0.000000 0.000000 20.82250 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 61.89400 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.74650 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 61.89400 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 20.82250 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 31.74650 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 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: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 PRO A 121 O - C - N ANGL. DEV. = -11.1 DEGREES REMARK 500 GLY A 122 C - N - CA ANGL. DEV. = -18.0 DEGREES REMARK 500 PHE A 143 CG - CD1 - CE1 ANGL. DEV. = 7.2 DEGREES REMARK 500 PHE A 143 CD1 - CE1 - CZ ANGL. DEV. = -7.8 DEGREES REMARK 500 THR A 162 CA - CB - CG2 ANGL. DEV. = 8.8 DEGREES REMARK 500 ARG A 186 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 VAL A 217 CA - CB - CG2 ANGL. DEV. = 10.9 DEGREES REMARK 500 GLU A 221 OE1 - CD - OE2 ANGL. DEV. = -12.1 DEGREES REMARK 500 ASP A 263 CB - CG - OD1 ANGL. DEV. = 6.7 DEGREES REMARK 500 ARG A 305 NE - CZ - NH2 ANGL. DEV. = -4.6 DEGREES 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 ILE A 252 70.43 -118.32 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 322 DBREF 1IXG A 1 321 UNP P06128 PSTS_ECOLI 26 346 SEQADV 1IXG ASP A 141 UNP P06128 THR 166 ENGINEERED MUTATION SEQRES 1 A 321 GLU ALA SER LEU THR GLY ALA GLY ALA THR PHE PRO ALA SEQRES 2 A 321 PRO VAL TYR ALA LYS TRP ALA ASP THR TYR GLN LYS GLU SEQRES 3 A 321 THR GLY ASN LYS VAL ASN TYR GLN GLY ILE GLY SER SER SEQRES 4 A 321 GLY GLY VAL LYS GLN ILE ILE ALA ASN THR VAL ASP PHE SEQRES 5 A 321 GLY ALA SER ASP ALA PRO LEU SER ASP GLU LYS LEU ALA SEQRES 6 A 321 GLN GLU GLY LEU PHE GLN PHE PRO THR VAL ILE GLY GLY SEQRES 7 A 321 VAL VAL LEU ALA VAL ASN ILE PRO GLY LEU LYS SER GLY SEQRES 8 A 321 GLU LEU VAL LEU ASP GLY LYS THR LEU GLY ASP ILE TYR SEQRES 9 A 321 LEU GLY LYS ILE LYS LYS TRP ASP ASP GLU ALA ILE ALA SEQRES 10 A 321 LYS LEU ASN PRO GLY LEU LYS LEU PRO SER GLN ASN ILE SEQRES 11 A 321 ALA VAL VAL ARG ARG ALA ASP GLY SER GLY ASP SER PHE SEQRES 12 A 321 VAL PHE THR SER TYR LEU ALA LYS VAL ASN GLU GLU TRP SEQRES 13 A 321 LYS ASN ASN VAL GLY THR GLY SER THR VAL LYS TRP PRO SEQRES 14 A 321 ILE GLY LEU GLY GLY LYS GLY ASN ASP GLY ILE ALA ALA SEQRES 15 A 321 PHE VAL GLN ARG LEU PRO GLY ALA ILE GLY TYR VAL GLU SEQRES 16 A 321 TYR ALA TYR ALA LYS GLN ASN ASN LEU ALA TYR THR LYS SEQRES 17 A 321 LEU ILE SER ALA ASP GLY LYS PRO VAL SER PRO THR GLU SEQRES 18 A 321 GLU ASN PHE ALA ASN ALA ALA LYS GLY ALA ASP TRP SER SEQRES 19 A 321 LYS THR PHE ALA GLN ASP LEU THR ASN GLN LYS GLY GLU SEQRES 20 A 321 ASP ALA TRP PRO ILE THR SER THR THR PHE ILE LEU ILE SEQRES 21 A 321 HIS LYS ASP GLN LYS LYS PRO GLU GLN GLY THR GLU VAL SEQRES 22 A 321 LEU LYS PHE PHE ASP TRP ALA TYR LYS THR GLY ALA LYS SEQRES 23 A 321 GLN ALA ASN ASP LEU ASP TYR ALA SER LEU PRO ASP SER SEQRES 24 A 321 VAL VAL GLU GLN VAL ARG ALA ALA TRP LYS THR ASN ILE SEQRES 25 A 321 LYS ASP SER SER GLY LYS PRO LEU TYR HET PO4 A 322 5 HETNAM PO4 PHOSPHATE ION FORMUL 2 PO4 O4 P 3- HELIX 1 1 ALA A 13 THR A 27 1 15 HELIX 2 2 SER A 38 ILE A 46 1 9 HELIX 3 3 ASP A 61 GLU A 67 1 7 HELIX 4 4 GLY A 97 TYR A 104 1 8 HELIX 5 5 GLU A 114 LEU A 119 1 6 HELIX 6 6 GLY A 140 VAL A 152 1 13 HELIX 7 7 GLU A 154 ASN A 159 1 6 HELIX 8 8 GLY A 176 ARG A 186 1 11 HELIX 9 9 TYR A 196 LYS A 200 1 5 HELIX 10 10 GLU A 221 ALA A 228 1 8 HELIX 11 11 PRO A 267 THR A 283 1 17 HELIX 12 12 ALA A 285 LEU A 291 1 7 HELIX 13 13 ASP A 298 ASN A 311 1 14 SHEET 1 A 5 LYS A 30 GLY A 35 0 SHEET 2 A 5 SER A 3 GLY A 8 1 N LEU A 4 O LYS A 30 SHEET 3 A 5 PHE A 52 SER A 55 1 N PHE A 52 O ALA A 7 SHEET 4 A 5 PHE A 257 HIS A 261 -1 N LEU A 259 O GLY A 53 SHEET 5 A 5 LEU A 69 PRO A 73 -1 N PHE A 72 O ILE A 258 SHEET 1 B 2 ILE A 76 GLY A 78 0 SHEET 2 B 2 THR A 253 THR A 255 -1 N SER A 254 O GLY A 77 SHEET 1 C 4 VAL A 79 VAL A 83 0 SHEET 2 C 4 ALA A 190 GLU A 195 -1 N VAL A 194 O VAL A 80 SHEET 3 C 4 ALA A 131 ARG A 135 1 N ALA A 131 O ILE A 191 SHEET 4 C 4 LEU A 172 GLY A 174 1 N LEU A 172 O ARG A 134 SITE 1 AC1 10 ALA A 9 THR A 10 PHE A 11 GLY A 37 SITE 2 AC1 10 SER A 38 ASP A 56 ARG A 135 SER A 139 SITE 3 AC1 10 GLY A 140 ASP A 141 CRYST1 41.645 63.493 123.788 90.00 90.00 90.00 P 21 21 21 4 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 0.024012 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015750 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008078 0.00000