HEADER CHAPERONE 24-JUL-19 6SCB TITLE CRYSTAL STRUCTURE OF A SHORTENED IPGC VARIANT WITH TWO BOUND MAGNESIUM TITLE 2 AND TWO BOUND CHLORINE ATOMS EACH COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHAPERONE PROTEIN IPGC; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SHIGELLA FLEXNERI; SOURCE 3 ORGANISM_TAXID: 623; SOURCE 4 GENE: IPGC, IPPI, CP0129; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS IPGC, MG, CL, DIMER, CHAPERONE, SHIGELLA, MUTANT EXPDTA X-RAY DIFFRACTION AUTHOR M.LEY,A.HEINE,G.KLEBE REVDAT 2 24-JAN-24 6SCB 1 REMARK REVDAT 1 09-SEP-20 6SCB 0 JRNL AUTH M.LEY,A.HEINE,G.KLEBE JRNL TITL CRYSTAL STRUCTURE OF A SHORTENED IPGC VARIANT WITH TWO BOUND JRNL TITL 2 MAGNESIUM AND TWO BOUND CHLORINE ATOMS EACH JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.58 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.16 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.58 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 47.59 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.360 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 3 NUMBER OF REFLECTIONS : 42965 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.177 REMARK 3 R VALUE (WORKING SET) : 0.175 REMARK 3 FREE R VALUE : 0.215 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.980 REMARK 3 FREE R VALUE TEST SET COUNT : 2138 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 1.6200 - 1.5800 0.99 2662 134 0.2784 0.3478 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.172 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 23.246 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 18.92 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.67 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.008 2316 REMARK 3 ANGLE : 0.951 3158 REMARK 3 CHIRALITY : 0.054 340 REMARK 3 PLANARITY : 0.007 419 REMARK 3 DIHEDRAL : 16.217 1383 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: ALL REMARK 3 ORIGIN FOR THE GROUP (A): 45.2408 23.4542 10.2687 REMARK 3 T TENSOR REMARK 3 T11: 0.1547 T22: 0.1698 REMARK 3 T33: 0.1454 T12: 0.0050 REMARK 3 T13: 0.0024 T23: -0.0002 REMARK 3 L TENSOR REMARK 3 L11: 0.2583 L22: 0.1153 REMARK 3 L33: 0.3275 L12: 0.0694 REMARK 3 L13: 0.0773 L23: 0.0528 REMARK 3 S TENSOR REMARK 3 S11: -0.0572 S12: 0.0122 S13: 0.0101 REMARK 3 S21: -0.0026 S22: 0.0262 S23: 0.0040 REMARK 3 S31: -0.0081 S32: 0.0052 S33: 0.0000 REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : 1 REMARK 3 NCS GROUP : 1 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6SCB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 24-JUL-19. REMARK 100 THE DEPOSITION ID IS D_1292103432. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-JUN-19 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL 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) : 0.9184 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS 1.02 REMARK 200 DATA SCALING SOFTWARE : XDS 1.02 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 43023 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.580 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 4.890 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05500 REMARK 200 FOR THE DATA SET : 16.6400 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.58 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.66 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.4 REMARK 200 DATA REDUNDANCY IN SHELL : 4.72 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.57000 REMARK 200 FOR SHELL : 2.420 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER 7.0.047 REMARK 200 STARTING MODEL: 3GYZ REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.35 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.34 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 30% PEG 4000, 0.05 M TRIS (PH 7.0), REMARK 280 0.3 M MAGNESIUM CHLORIDE, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 291K 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 106.65267 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 53.32633 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 53.32633 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 106.65267 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2560 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 13720 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -51.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 420 LIES ON A SPECIAL POSITION. 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 GLY A 9 REMARK 465 SER A 10 REMARK 465 ILE A 11 REMARK 465 SER A 12 REMARK 465 THR A 13 REMARK 465 ALA A 14 REMARK 465 VAL A 15 REMARK 465 ILE A 16 REMARK 465 ASP A 17 REMARK 465 ALA A 18 REMARK 465 ILE A 19 REMARK 465 ASN A 20 REMARK 465 SER A 21 REMARK 465 GLY A 22 REMARK 465 ALA A 23 REMARK 465 GLN B 151 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 ASN A 29 CG OD1 ND2 REMARK 470 LYS A 49 CE NZ REMARK 470 LYS A 124 NZ REMARK 470 LYS A 138 CE NZ REMARK 470 LYS A 142 NZ REMARK 470 SER B 21 OG REMARK 470 MET B 35 SD CE REMARK 470 LYS B 49 CE NZ REMARK 470 ILE B 82 CD1 REMARK 470 LYS B 118 CE NZ REMARK 470 LEU B 121 CD1 CD2 REMARK 470 LYS B 122 CD CE NZ REMARK 470 LYS B 124 CG CD CE NZ REMARK 470 GLN B 132 OE1 NE2 REMARK 470 LYS B 142 CE NZ REMARK 470 ILE B 150 CG1 CG2 CD1 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 OE1 GLU A 125 HD21 ASN B 102 1.54 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 LYS A 101 -51.93 64.10 REMARK 500 TYR B 68 57.34 -92.62 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 B 425 DISTANCE = 6.65 ANGSTROMS REMARK 525 HOH B 426 DISTANCE = 8.98 ANGSTROMS REMARK 525 HOH B 427 DISTANCE = 10.98 ANGSTROMS REMARK 525 HOH B 428 DISTANCE = 11.64 ANGSTROMS REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 202 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 403 O REMARK 620 2 HOH A 404 O 88.7 REMARK 620 3 HOH B 301 O 177.6 89.1 REMARK 620 4 HOH B 375 O 91.8 83.5 89.0 REMARK 620 5 HOH B 405 O 87.6 175.9 94.6 94.9 REMARK 620 6 HOH B 408 O 92.6 91.3 86.4 173.2 90.6 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 201 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH B 308 O REMARK 620 2 HOH B 318 O 86.7 REMARK 620 3 HOH B 330 O 87.9 171.0 REMARK 620 4 HOH B 350 O 85.8 88.6 83.9 REMARK 620 5 HOH B 395 O 94.4 90.3 97.3 178.8 REMARK 620 6 HOH B 421 O 179.3 92.7 92.8 94.4 85.4 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CL A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG B 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG B 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CL B 203 DBREF 6SCB A 10 151 UNP P0A2U4 IPGC_SHIFL 10 151 DBREF 6SCB B 10 151 UNP P0A2U4 IPGC_SHIFL 10 151 SEQADV 6SCB GLY A 9 UNP P0A2U4 EXPRESSION TAG SEQADV 6SCB GLY B 9 UNP P0A2U4 EXPRESSION TAG SEQRES 1 A 143 GLY SER ILE SER THR ALA VAL ILE ASP ALA ILE ASN SER SEQRES 2 A 143 GLY ALA THR LEU LYS ASP ILE ASN ALA ILE PRO ASP ASP SEQRES 3 A 143 MET MET ASP ASP ILE TYR SER TYR ALA TYR ASP PHE TYR SEQRES 4 A 143 ASN LYS GLY ARG ILE GLU GLU ALA GLU VAL PHE PHE ARG SEQRES 5 A 143 PHE LEU CYS ILE TYR ASP PHE TYR ASN VAL ASP TYR ILE SEQRES 6 A 143 MET GLY LEU ALA ALA ILE TYR GLN ILE LYS GLU GLN PHE SEQRES 7 A 143 GLN GLN ALA ALA ASP LEU TYR ALA VAL ALA PHE ALA LEU SEQRES 8 A 143 GLY LYS ASN ASP TYR THR PRO VAL PHE HIS THR GLY GLN SEQRES 9 A 143 CYS GLN LEU ARG LEU LYS ALA PRO LEU LYS ALA LYS GLU SEQRES 10 A 143 CYS PHE GLU LEU VAL ILE GLN HIS SER ASN ASP GLU LYS SEQRES 11 A 143 LEU LYS ILE LYS ALA GLN SER TYR LEU ASP ALA ILE GLN SEQRES 1 B 143 GLY SER ILE SER THR ALA VAL ILE ASP ALA ILE ASN SER SEQRES 2 B 143 GLY ALA THR LEU LYS ASP ILE ASN ALA ILE PRO ASP ASP SEQRES 3 B 143 MET MET ASP ASP ILE TYR SER TYR ALA TYR ASP PHE TYR SEQRES 4 B 143 ASN LYS GLY ARG ILE GLU GLU ALA GLU VAL PHE PHE ARG SEQRES 5 B 143 PHE LEU CYS ILE TYR ASP PHE TYR ASN VAL ASP TYR ILE SEQRES 6 B 143 MET GLY LEU ALA ALA ILE TYR GLN ILE LYS GLU GLN PHE SEQRES 7 B 143 GLN GLN ALA ALA ASP LEU TYR ALA VAL ALA PHE ALA LEU SEQRES 8 B 143 GLY LYS ASN ASP TYR THR PRO VAL PHE HIS THR GLY GLN SEQRES 9 B 143 CYS GLN LEU ARG LEU LYS ALA PRO LEU LYS ALA LYS GLU SEQRES 10 B 143 CYS PHE GLU LEU VAL ILE GLN HIS SER ASN ASP GLU LYS SEQRES 11 B 143 LEU LYS ILE LYS ALA GLN SER TYR LEU ASP ALA ILE GLN HET CL A 201 1 HET MG B 201 1 HET MG B 202 1 HET CL B 203 1 HETNAM CL CHLORIDE ION HETNAM MG MAGNESIUM ION FORMUL 3 CL 2(CL 1-) FORMUL 4 MG 2(MG 2+) FORMUL 7 HOH *250(H2 O) HELIX 1 AA1 PRO A 32 LYS A 49 1 18 HELIX 2 AA2 ARG A 51 ASP A 66 1 16 HELIX 3 AA3 ASN A 69 LYS A 83 1 15 HELIX 4 AA4 GLN A 85 LYS A 101 1 17 HELIX 5 AA5 TYR A 104 LEU A 117 1 14 HELIX 6 AA6 ALA A 119 SER A 134 1 16 HELIX 7 AA7 ASP A 136 ILE A 150 1 15 HELIX 8 AA8 SER B 10 SER B 21 1 12 HELIX 9 AA9 PRO B 32 LYS B 49 1 18 HELIX 10 AB1 ARG B 51 ASP B 66 1 16 HELIX 11 AB2 ASN B 69 LYS B 83 1 15 HELIX 12 AB3 GLN B 85 GLY B 100 1 16 HELIX 13 AB4 TYR B 104 LEU B 117 1 14 HELIX 14 AB5 ALA B 119 SER B 134 1 16 HELIX 15 AB6 ASP B 136 ILE B 150 1 15 LINK O HOH A 403 MG MG B 202 1555 1555 1.95 LINK O HOH A 404 MG MG B 202 1555 1555 2.20 LINK MG MG B 201 O HOH B 308 1555 1555 2.14 LINK MG MG B 201 O HOH B 318 1555 1555 2.10 LINK MG MG B 201 O HOH B 330 1555 1555 2.29 LINK MG MG B 201 O HOH B 350 1555 1555 2.13 LINK MG MG B 201 O HOH B 395 1555 1555 2.13 LINK MG MG B 201 O HOH B 421 1555 1555 2.04 LINK MG MG B 202 O HOH B 301 1555 1555 2.20 LINK MG MG B 202 O HOH B 375 1555 1555 1.93 LINK MG MG B 202 O HOH B 405 1555 1555 2.13 LINK MG MG B 202 O HOH B 408 1555 1555 1.86 SITE 1 AC1 5 ALA A 119 PRO A 120 LEU A 121 LYS A 122 SITE 2 AC1 5 HOH A 395 SITE 1 AC2 6 HOH B 308 HOH B 318 HOH B 330 HOH B 350 SITE 2 AC2 6 HOH B 395 HOH B 421 SITE 1 AC3 6 HOH A 403 HOH A 404 HOH B 301 HOH B 375 SITE 2 AC3 6 HOH B 405 HOH B 408 SITE 1 AC4 5 GLY B 9 ILE B 11 SER B 12 HOH B 396 SITE 2 AC4 5 HOH B 419 CRYST1 57.554 57.554 159.979 90.00 90.00 120.00 P 32 2 1 12 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 0.017375 0.010031 0.000000 0.00000 SCALE2 0.000000 0.020063 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006251 0.00000