HEADER TRANSFERASE 17-JAN-19 6NP1 TITLE PRODUCT STATE MIMICRY LEADS TO AMINOGLYCOSIDE DISCRIMINATION IN AN TITLE 2 ANTIBIOTIC ACETYLTRANSFERASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: AMINOGLYCOSIDE N(3)-ACETYLTRANSFERASE; COMPND 3 CHAIN: A; COMPND 4 EC: 2.3.1.81; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ENTEROBACTER CLOACAE; SOURCE 3 ORGANISM_TAXID: 550; SOURCE 4 GENE: AAC 3-VI; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008 KEYWDS ANTIBIOTIC MODIFYING ENZYME, SUBSTRATE SELECTIVITY, ANTIBIOTIC, KEYWDS 2 TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR P.KUMAR,M.J.CUNEO REVDAT 3 11-OCT-23 6NP1 1 LINK REVDAT 2 06-NOV-19 6NP1 1 JRNL REVDAT 1 25-SEP-19 6NP1 0 JRNL AUTH P.KUMAR,P.K.AGARWAL,M.B.WADDELL,T.MITTAG,E.H.SERPERSU, JRNL AUTH 2 M.J.CUNEO JRNL TITL LOW-BARRIER AND CANONICAL HYDROGEN BONDS MODULATE ACTIVITY JRNL TITL 2 AND SPECIFICITY OF A CATALYTIC TRIAD. JRNL REF ANGEW.CHEM.INT.ED.ENGL. V. 58 16260 2019 JRNL REFN ESSN 1521-3773 JRNL PMID 31515870 JRNL DOI 10.1002/ANIE.201908535 REMARK 2 REMARK 2 RESOLUTION. 1.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.11.1_2575 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) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 43.29 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 96.9 REMARK 3 NUMBER OF REFLECTIONS : 41077 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.209 REMARK 3 R VALUE (WORKING SET) : 0.207 REMARK 3 FREE R VALUE : 0.238 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.860 REMARK 3 FREE R VALUE TEST SET COUNT : 1997 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 43.3033 - 3.8500 0.87 2563 131 0.1799 0.2152 REMARK 3 2 3.8500 - 3.0561 0.89 2563 131 0.2033 0.2209 REMARK 3 3 3.0561 - 2.6699 0.95 2760 142 0.2091 0.2272 REMARK 3 4 2.6699 - 2.4258 0.99 2851 146 0.2087 0.2676 REMARK 3 5 2.4258 - 2.2519 1.00 2872 146 0.2028 0.2346 REMARK 3 6 2.2519 - 2.1192 1.00 2884 147 0.2141 0.2474 REMARK 3 7 2.1192 - 2.0130 1.00 2835 145 0.2058 0.2492 REMARK 3 8 2.0130 - 1.9254 1.00 2908 149 0.2267 0.2383 REMARK 3 9 1.9254 - 1.8513 1.00 2840 145 0.2300 0.2571 REMARK 3 10 1.8513 - 1.7874 0.99 2835 145 0.2385 0.3025 REMARK 3 11 1.7874 - 1.7315 1.00 2888 148 0.2446 0.2877 REMARK 3 12 1.7315 - 1.6820 1.00 2874 147 0.2557 0.3031 REMARK 3 13 1.6820 - 1.6377 1.00 2841 144 0.2820 0.2980 REMARK 3 14 1.6377 - 1.6000 0.89 2566 131 0.3029 0.3107 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) : 0.190 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 29.740 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 25.15 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 37.25 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 : 0.012 2121 REMARK 3 ANGLE : 1.150 2906 REMARK 3 CHIRALITY : 0.075 310 REMARK 3 PLANARITY : 0.009 391 REMARK 3 DIHEDRAL : 5.434 1706 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 6NP1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-JAN-19. REMARK 100 THE DEPOSITION ID IS D_1000239020. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 13-MAR-18 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 : APS REMARK 200 BEAMLINE : 23-ID-D REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS3 S 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-3000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 41106 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 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 (%) : 97.7 REMARK 200 DATA REDUNDANCY : 3.300 REMARK 200 R MERGE (I) : 0.09100 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 11.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.64 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 3.30 REMARK 200 R MERGE FOR SHELL (I) : 0.31100 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL 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: 6BC6 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 56.59 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.83 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 15-20% POLYETHYLENE GLYCOL (PEG) REMARK 280 8000,0.1 M TRIS, PH=8.5 AND 0.3 M MGCL2., VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 279K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 42.67450 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 43.28800 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 42.67450 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 43.28800 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 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 520 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 607 LIES ON A SPECIAL POSITION. 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 NH2 ARG A 265 O HOH A 401 1.90 REMARK 500 O HOH A 567 O HOH A 571 1.95 REMARK 500 O HOH A 488 O HOH A 504 1.96 REMARK 500 NH1 ARG A 162 O HOH A 402 1.97 REMARK 500 OE1 GLU A 154 O HOH A 403 1.99 REMARK 500 O HOH A 462 O HOH A 569 2.04 REMARK 500 O HOH A 426 O HOH A 549 2.14 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 CD2 HIS A 109 NH1 ARG A 246 4455 1.09 REMARK 500 NE2 HIS A 109 NH1 ARG A 246 4455 1.23 REMARK 500 NE2 HIS A 109 CZ ARG A 246 4455 1.95 REMARK 500 O HOH A 509 O HOH A 565 2556 2.19 REMARK 500 REMARK 500 REMARK: NULL 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 ARG A 246 NE - CZ - NH1 ANGL. DEV. = -4.1 DEGREES REMARK 500 ARG A 246 NE - CZ - NH2 ANGL. DEV. = 4.0 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 SER A 79 -146.07 57.93 REMARK 500 PRO A 84 39.52 -86.73 REMARK 500 ALA A 157 55.90 -142.85 REMARK 500 ARG A 162 -3.57 73.72 REMARK 500 REMARK 500 REMARK: NULL 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 A 301 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 145 OD2 REMARK 620 2 HOH A 460 O 84.9 REMARK 620 3 HOH A 460 O 91.4 87.4 REMARK 620 4 HOH A 504 O 124.4 62.4 127.2 REMARK 620 5 HOH A 504 O 93.5 168.2 104.3 109.8 REMARK 620 6 HOH A 514 O 78.5 83.7 167.0 55.8 84.5 REMARK 620 7 HOH A 514 O 169.2 102.4 96.9 54.6 77.7 94.2 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 302 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 465 O REMARK 620 2 HOH A 521 O 80.9 REMARK 620 3 HOH A 574 O 87.1 99.3 REMARK 620 4 HOH A 580 O 88.3 83.6 174.1 REMARK 620 5 HOH A 581 O 103.2 175.4 78.9 98.6 REMARK 620 6 HOH A 605 O 160.2 79.3 94.7 90.9 96.5 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 MG A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG A 302 DBREF 6NP1 A 19 286 UNP Q47030 Q47030_ENTCL 19 286 SEQADV 6NP1 SER A 132 UNP Q47030 THR 132 VARIANT SEQRES 1 A 268 THR PRO TRP SER LYS SER GLU LEU VAL ARG GLN LEU ARG SEQRES 2 A 268 ASP LEU GLY VAL ARG SER GLY ASP MET VAL MET PRO HIS SEQRES 3 A 268 VAL SER LEU ARG ALA VAL GLY PRO LEU ALA ASP GLY PRO SEQRES 4 A 268 GLN THR LEU VAL ASP ALA LEU ILE GLU ALA VAL GLY PRO SEQRES 5 A 268 THR GLY ASN ILE LEU ALA PHE VAL SER TRP ARG ASP SER SEQRES 6 A 268 PRO TYR GLU GLN THR LEU GLY HIS ASP ALA PRO PRO ALA SEQRES 7 A 268 ALA ILE ALA GLN SER TRP PRO ALA PHE ASP PRO ASP HIS SEQRES 8 A 268 ALA PRO ALA TYR PRO GLY PHE GLY ALA ILE ASN GLU PHE SEQRES 9 A 268 ILE ARG THR TYR PRO GLY CYS ARG ARG SER ALA HIS PRO SEQRES 10 A 268 ASP ALA SER MET ALA ALA ILE GLY PRO ASP ALA ALA TRP SEQRES 11 A 268 LEU VAL ALA PRO HIS GLU MET GLY ALA ALA TYR GLY PRO SEQRES 12 A 268 ARG SER PRO ILE ALA ARG PHE LEU ALA HIS ALA GLY LYS SEQRES 13 A 268 ILE LEU SER ILE GLY ALA GLY PRO ASP ALA VAL THR ALA SEQRES 14 A 268 LEU HIS TYR ALA GLU ALA VAL ALA ARG ILE GLU GLY LYS SEQRES 15 A 268 ARG ARG VAL THR TYR SER MET PRO LEU LEU ARG GLU GLY SEQRES 16 A 268 LYS ARG VAL TRP VAL THR THR SER ASP TRP ASP SER ASN SEQRES 17 A 268 GLY ILE LEU ASP GLU TYR ALA ALA PRO ASP GLY PRO ASP SEQRES 18 A 268 ALA VAL GLU ARG ILE ALA ARG ASP TYR LEU ALA ARG THR SEQRES 19 A 268 ARG VAL ALA GLN GLY PRO VAL GLY GLY ALA GLN SER ARG SEQRES 20 A 268 LEU ILE ASP ALA ALA ASP ILE VAL SER PHE GLY ILE GLU SEQRES 21 A 268 TRP LEU GLU ALA ARG HIS ALA ALA HET MG A 301 1 HET MG A 302 1 HETNAM MG MAGNESIUM ION FORMUL 2 MG 2(MG 2+) FORMUL 4 HOH *207(H2 O) HELIX 1 AA1 SER A 22 GLY A 34 1 13 HELIX 2 AA2 SER A 46 GLY A 51 1 6 HELIX 3 AA3 GLY A 56 GLY A 69 1 14 HELIX 4 AA4 PRO A 84 LEU A 89 1 6 HELIX 5 AA5 PRO A 95 TRP A 102 1 8 HELIX 6 AA6 TYR A 113 GLY A 117 5 5 HELIX 7 AA7 ALA A 118 THR A 125 1 8 HELIX 8 AA8 ASP A 145 ALA A 151 1 7 HELIX 9 AA9 SER A 163 HIS A 171 1 9 HELIX 10 AB1 GLY A 181 THR A 186 5 6 HELIX 11 AB2 ALA A 187 ALA A 195 1 9 HELIX 12 AB3 LEU A 229 ALA A 233 5 5 HELIX 13 AB4 ASP A 239 THR A 252 1 14 HELIX 14 AB5 ALA A 269 HIS A 284 1 16 SHEET 1 AA1 7 ARG A 130 ARG A 131 0 SHEET 2 AA1 7 MET A 139 ILE A 142 -1 O ALA A 141 N ARG A 130 SHEET 3 AA1 7 ASN A 73 PHE A 77 -1 N ALA A 76 O ALA A 140 SHEET 4 AA1 7 MET A 40 VAL A 45 1 N VAL A 41 O ASN A 73 SHEET 5 AA1 7 LYS A 174 ILE A 178 1 O ILE A 178 N HIS A 44 SHEET 6 AA1 7 ALA A 262 ASP A 268 -1 O ILE A 267 N ILE A 175 SHEET 7 AA1 7 ALA A 255 VAL A 259 -1 N GLY A 257 O SER A 264 SHEET 1 AA2 2 ARG A 202 ARG A 211 0 SHEET 2 AA2 2 LYS A 214 TRP A 223 -1 O VAL A 216 N LEU A 209 LINK OD2 ASP A 145 MG MG A 301 1555 1555 2.61 LINK MG MG A 301 O HOH A 460 1555 1555 2.42 LINK MG MG A 301 O HOH A 460 1555 2556 1.73 LINK MG MG A 301 O HOH A 504 1555 1555 2.95 LINK MG MG A 301 O HOH A 504 1555 2556 1.84 LINK MG MG A 301 O HOH A 514 1555 1555 1.78 LINK MG MG A 301 O HOH A 514 1555 2556 2.05 LINK MG MG A 302 O HOH A 465 1555 1555 2.13 LINK MG MG A 302 O HOH A 521 1555 1555 2.57 LINK MG MG A 302 O HOH A 574 1555 1555 2.06 LINK MG MG A 302 O HOH A 580 1555 1555 2.15 LINK MG MG A 302 O HOH A 581 1555 1555 2.32 LINK MG MG A 302 O HOH A 605 1555 1555 2.03 CISPEP 1 ALA A 151 PRO A 152 0 6.48 CISPEP 2 GLY A 237 PRO A 238 0 -4.20 SITE 1 AC1 5 THR A 71 ASP A 145 HOH A 460 HOH A 504 SITE 2 AC1 5 HOH A 514 SITE 1 AC2 6 HOH A 465 HOH A 521 HOH A 574 HOH A 580 SITE 2 AC2 6 HOH A 581 HOH A 605 CRYST1 85.349 86.576 50.352 90.00 118.92 90.00 C 1 2 1 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 0.011717 0.000000 0.006472 0.00000 SCALE2 0.000000 0.011551 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022689 0.00000