HEADER ANTIMICROBIAL PROTEIN 14-SEP-22 8EHU TITLE CRYSTAL STRUCTURE OF THE ENVIRONMENTAL CRH-1 CLASS A CARBAPENEMASE AT TITLE 2 1.1 ANGSTROM RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: BETA-LACTAMASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.5.2.6; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CHROMOBACTERIUM HAEMOLYTICUM; SOURCE 3 ORGANISM_TAXID: 394935; SOURCE 4 GENE: B0T45_03570; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET28A KEYWDS CLASS A CARBAPENEMASE, ENVIRONMENTAL LACTAMASE, CHROMOBACTERIUM, KEYWDS 2 ANTIMICROBIAL PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR P.POWER,F.BRUNETTI,B.GHIGLIONE,L.GUARDABASSI,G.GUTKIND,S.KLINKE REVDAT 5 30-OCT-24 8EHU 1 REMARK REVDAT 4 25-OCT-23 8EHU 1 REMARK REVDAT 3 26-JUL-23 8EHU 1 JRNL REVDAT 2 21-JUN-23 8EHU 1 JRNL REVDAT 1 31-MAY-23 8EHU 0 JRNL AUTH F.BRUNETTI,B.GHIGLIONE,D.D.GUDETA,G.GUTKIND,L.GUARDABASSI, JRNL AUTH 2 S.KLINKE,P.POWER JRNL TITL BIOCHEMICAL AND STRUCTURAL CHARACTERIZATION OF CRH-1, A JRNL TITL 2 CARBAPENEMASE FROM CHROMOBACTERIUM HAEMOLYTICUM RELATED TO JRNL TITL 3 KPC BETA-LACTAMASES. JRNL REF ANTIMICROB.AGENTS CHEMOTHER. V. 67 06123 2023 JRNL REFN ESSN 1098-6596 JRNL PMID 37272821 JRNL DOI 10.1128/AAC.00061-23 REMARK 2 REMARK 2 RESOLUTION. 1.10 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.19.2_4158 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 : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 42.34 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.390 REMARK 3 COMPLETENESS FOR RANGE (%) : 96.2 REMARK 3 NUMBER OF REFLECTIONS : 105842 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.166 REMARK 3 R VALUE (WORKING SET) : 0.165 REMARK 3 FREE R VALUE : 0.179 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 5293 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 42.3400 - 3.4200 0.98 3499 185 0.1622 0.1768 REMARK 3 2 3.4200 - 2.7100 0.99 3487 183 0.1647 0.1929 REMARK 3 3 2.7100 - 2.3700 0.99 3485 184 0.1761 0.1824 REMARK 3 4 2.3700 - 2.1500 0.99 3431 180 0.1641 0.1712 REMARK 3 5 2.1500 - 2.0000 0.99 3469 183 0.1584 0.1731 REMARK 3 6 2.0000 - 1.8800 0.98 3439 181 0.1635 0.1709 REMARK 3 7 1.8800 - 1.7900 0.98 3422 180 0.1686 0.1903 REMARK 3 8 1.7900 - 1.7100 0.98 3424 180 0.1653 0.1863 REMARK 3 9 1.7100 - 1.6400 0.98 3408 179 0.1604 0.1590 REMARK 3 10 1.6400 - 1.5900 0.97 3361 177 0.1582 0.1710 REMARK 3 11 1.5900 - 1.5400 0.97 3403 179 0.1593 0.1646 REMARK 3 12 1.5400 - 1.4900 0.97 3372 178 0.1634 0.1792 REMARK 3 13 1.4900 - 1.4500 0.97 3358 177 0.1644 0.1739 REMARK 3 14 1.4500 - 1.4200 0.97 3390 178 0.1612 0.1712 REMARK 3 15 1.4200 - 1.3900 0.96 3364 177 0.1627 0.1897 REMARK 3 16 1.3900 - 1.3600 0.96 3308 174 0.1684 0.1840 REMARK 3 17 1.3600 - 1.3300 0.96 3356 177 0.1692 0.1902 REMARK 3 18 1.3300 - 1.3000 0.96 3334 175 0.1665 0.1767 REMARK 3 19 1.3000 - 1.2800 0.95 3324 175 0.1682 0.1714 REMARK 3 20 1.2800 - 1.2600 0.96 3310 175 0.1639 0.1618 REMARK 3 21 1.2600 - 1.2400 0.95 3324 174 0.1682 0.1778 REMARK 3 22 1.2400 - 1.2200 0.95 3309 175 0.1719 0.1996 REMARK 3 23 1.2200 - 1.2000 0.94 3273 172 0.1651 0.1618 REMARK 3 24 1.2000 - 1.1800 0.95 3274 172 0.1695 0.1765 REMARK 3 25 1.1800 - 1.1700 0.94 3327 176 0.1678 0.1948 REMARK 3 26 1.1700 - 1.1500 0.94 3241 170 0.1706 0.1857 REMARK 3 27 1.1500 - 1.1400 0.95 3257 172 0.1711 0.1811 REMARK 3 28 1.1400 - 1.1300 0.93 3291 173 0.1713 0.1667 REMARK 3 29 1.1300 - 1.1100 0.94 3247 171 0.1736 0.1874 REMARK 3 30 1.1100 - 1.1000 0.89 3062 161 0.2038 0.1968 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL 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) : 0.083 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 16.781 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 10.62 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 15.23 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 2059 REMARK 3 ANGLE : 1.077 2795 REMARK 3 CHIRALITY : 0.096 315 REMARK 3 PLANARITY : 0.012 368 REMARK 3 DIHEDRAL : 5.904 289 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 8EHU COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-SEP-22. REMARK 100 THE DEPOSITION ID IS D_1000268496. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-OCT-21 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SOLEIL REMARK 200 BEAMLINE : PROXIMA 2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.885601 REMARK 200 MONOCHROMATOR : CRYOGENICALLY COOLED CHANNEL CUT REMARK 200 CRYSTAL MONOCHROMATOR REMARK 200 OPTICS : CONVEX PREFOCUSSING MIRROR AND A REMARK 200 KIRKPATRICK-BAEZ PAIR OF REMARK 200 FOCUSSING MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER X 9M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 105857 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.100 REMARK 200 RESOLUTION RANGE LOW (A) : 42.340 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.2 REMARK 200 DATA REDUNDANCY : 6.850 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 22.6100 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.17 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.6 REMARK 200 DATA REDUNDANCY IN SHELL : 6.00 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 7.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX 1.19.2_4158 REMARK 200 STARTING MODEL: 4EQI REMARK 200 REMARK 200 REMARK: RECTANGULAR PRISMS REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.41 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 18% (W/V) PEG 4000 + 0.2 M LITHIUM REMARK 280 CHLORIDE + 0.1 M TRIS-HCL PH 8.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 294K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 36.45000 REMARK 290 SMTRY3 2 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: 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 O HOH A 302 O HOH A 428 1.71 REMARK 500 O HOH A 605 O HOH A 681 1.79 REMARK 500 NZ LYS A 140 O HOH A 301 1.94 REMARK 500 O ARG A 175 O HOH A 302 1.94 REMARK 500 O HOH A 410 O HOH A 681 1.95 REMARK 500 O HOH A 550 O HOH A 663 2.11 REMARK 500 OD1 ASN A 60 O HOH A 303 2.15 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 O HOH A 321 O HOH A 493 1655 1.96 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 CYS A 69 -147.85 52.06 REMARK 500 ASN A 143 22.27 86.98 REMARK 500 ARG A 175 -8.36 76.16 REMARK 500 ARG A 220 -123.33 -113.28 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 854 DISTANCE = 5.93 ANGSTROMS REMARK 525 HOH A 855 DISTANCE = 6.23 ANGSTROMS REMARK 525 HOH A 856 DISTANCE = 6.25 ANGSTROMS REMARK 525 HOH A 857 DISTANCE = 6.50 ANGSTROMS REMARK 525 HOH A 858 DISTANCE = 6.61 ANGSTROMS REMARK 525 HOH A 859 DISTANCE = 6.66 ANGSTROMS REMARK 525 HOH A 860 DISTANCE = 6.70 ANGSTROMS REMARK 525 HOH A 861 DISTANCE = 6.82 ANGSTROMS REMARK 525 HOH A 862 DISTANCE = 6.87 ANGSTROMS REMARK 525 HOH A 863 DISTANCE = 6.97 ANGSTROMS REMARK 525 HOH A 864 DISTANCE = 7.31 ANGSTROMS REMARK 525 HOH A 865 DISTANCE = 7.36 ANGSTROMS REMARK 525 HOH A 866 DISTANCE = 7.52 ANGSTROMS REMARK 525 HOH A 867 DISTANCE = 7.57 ANGSTROMS REMARK 525 HOH A 868 DISTANCE = 7.67 ANGSTROMS REMARK 525 HOH A 869 DISTANCE = 7.85 ANGSTROMS DBREF1 8EHU A 24 293 UNP A0A1W0D7S2_9NEIS DBREF2 8EHU A A0A1W0D7S2 21 290 SEQADV 8EHU THR A 150 UNP A0A1W0D7S ALA 147 ENGINEERED MUTATION SEQADV 8EHU ILE A 173 UNP A0A1W0D7S VAL 170 ENGINEERED MUTATION SEQADV 8EHU ARG A 175 UNP A0A1W0D7S GLY 172 ENGINEERED MUTATION SEQRES 1 A 270 ALA ASP PRO LEU SER VAL ALA ALA ASP LYS LEU ALA LYS SEQRES 2 A 270 LEU GLU ARG ASP PHE GLY GLY SER ILE GLY VAL TYR ALA SEQRES 3 A 270 ILE ASP THR GLY SER GLY ALA THR VAL ALA ASN ARG PRO SEQRES 4 A 270 ASN GLU ARG PHE PRO LEU CYS SER SER PHE LYS GLY PHE SEQRES 5 A 270 LEU ALA ALA GLY VAL LEU ALA GLN SER GLN ASP LYS PRO SEQRES 6 A 270 GLY LEU LEU ASP LYS ARG ILE ARG TYR SER LYS ALA ALA SEQRES 7 A 270 LEU PRO ASN TRP SER PRO ILE THR THR LYS HIS GLN ALA SEQRES 8 A 270 SER GLY MET THR VAL ALA GLU LEU ASN ALA ALA SER VAL SEQRES 9 A 270 GLN TYR SER ASP ASN GLY ALA ALA ASN LEU LEU LEU LYS SEQRES 10 A 270 GLU ILE ASN GLY PRO ALA ALA LEU THR THR PHE MET ARG SEQRES 11 A 270 SER ILE GLY ASP ALA SER PHE ARG LEU ASP ARG LEU GLU SEQRES 12 A 270 PRO GLU LEU ASN SER ALA ILE PRO ARG ASP PRO ARG ASP SEQRES 13 A 270 THR SER THR PRO LYS ALA VAL ALA GLU SER ALA GLN LYS SEQRES 14 A 270 LEU ALA LEU GLY LYS ALA LEU PRO GLU PRO GLN ARG GLN SEQRES 15 A 270 GLN LEU ALA ASP TRP LEU LYS GLY ASN THR THR GLY ASN SEQRES 16 A 270 ALA ARG ILE ARG ALA ALA VAL PRO ALA GLY TRP GLU VAL SEQRES 17 A 270 GLY ASP LYS THR GLY THR CYS GLY VAL TYR GLY THR ALA SEQRES 18 A 270 ASN ASP PHE ALA VAL ILE TRP PRO PRO LYS ARG ALA PRO SEQRES 19 A 270 ILE VAL LEU ALA VAL TYR THR LYS HIS ALA LYS LYS GLU SEQRES 20 A 270 ALA LYS HIS SER ASP GLU VAL ILE ALA ALA ALA ALA ARG SEQRES 21 A 270 ALA ALA LEU GLU ALA PHE ASN VAL LYS LYS FORMUL 2 HOH *569(H2 O) HELIX 1 AA1 ASP A 25 GLY A 42 1 18 HELIX 2 AA2 SER A 71 LYS A 87 1 17 HELIX 3 AA3 GLY A 89 ASP A 92 5 4 HELIX 4 AA4 SER A 106 GLN A 113 1 8 HELIX 5 AA5 VAL A 119 SER A 130 1 12 HELIX 6 AA6 ASP A 131 ASN A 143 1 13 HELIX 7 AA7 GLY A 144 ILE A 155 1 12 HELIX 8 AA8 PRO A 167 SER A 171 5 5 HELIX 9 AA9 THR A 182 LEU A 195 1 14 HELIX 10 AB1 PRO A 200 GLY A 213 1 14 HELIX 11 AB2 ARG A 220 VAL A 225 5 6 HELIX 12 AB3 SER A 274 PHE A 289 1 16 SHEET 1 AA1 5 THR A 57 ASN A 60 0 SHEET 2 AA1 5 SER A 44 ASP A 51 -1 N VAL A 47 O ASN A 60 SHEET 3 AA1 5 ILE A 258 LYS A 265 -1 O TYR A 263 N GLY A 46 SHEET 4 AA1 5 ALA A 244 TRP A 251 -1 N ILE A 250 O ILE A 258 SHEET 5 AA1 5 GLU A 230 THR A 237 -1 N GLY A 232 O VAL A 249 SHEET 1 AA2 2 PHE A 66 PRO A 67 0 SHEET 2 AA2 2 THR A 180 SER A 181 -1 O SER A 181 N PHE A 66 SHEET 1 AA3 2 ARG A 94 ILE A 95 0 SHEET 2 AA3 2 MET A 117 THR A 118 -1 O MET A 117 N ILE A 95 SSBOND 1 CYS A 69 CYS A 238 1555 1555 2.07 CISPEP 1 GLU A 166 PRO A 167 0 -1.90 CRYST1 36.430 72.900 52.060 90.00 92.27 90.00 P 1 21 1 2 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 0.027450 0.000000 0.001088 0.00000 SCALE2 0.000000 0.013717 0.000000 0.00000 SCALE3 0.000000 0.000000 0.019224 0.00000