HEADER TRANSCRIPTION ACTIVATOR/ANTIBIOTIC 12-AUG-13 2MC0 TITLE STRUCTURAL BASIS OF A THIOPEPTIDE ANTIBIOTIC MULTIDRUG RESISTANCE TITLE 2 SYSTEM FROM STREPTOMYCES LIVIDANS:NOSIHEPTIDE IN COMPLEX WITH TIPAS COMPND MOL_ID: 1; COMPND 2 MOLECULE: HTH-TYPE TRANSCRIPTIONAL ACTIVATOR TIPA; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 110-253; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: NOSIHEPTIDE; COMPND 8 CHAIN: B; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES LIVIDANS; SOURCE 3 ORGANISM_TAXID: 1916; SOURCE 4 GENE: TIPA; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: XL1-BLUE; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: VECTOR; SOURCE 9 EXPRESSION_SYSTEM_VECTOR: PDS8; SOURCE 10 MOL_ID: 2; SOURCE 11 SYNTHETIC: YES; SOURCE 12 ORGANISM_SCIENTIFIC: STREPTOMYCES ACTUOSUS; SOURCE 13 ORGANISM_TAXID: 1885 KEYWDS BACTERIAL PROTEIN, STREPTOMYCES LIVIDANS, TRANSCRIPTIONAL ACTIVATION, KEYWDS 2 TIPAS-NOSIHEPTIDE COMPLEX, TRANSCRIPTIONAL ACTIVATOR-ANTIBIOTIC KEYWDS 3 COMPLEX, PROTEIN/THIOPEPTIDE, MULTIDRUG RECOGNITION, TRANSCRIPTION KEYWDS 4 ACTIVATOR-ANTIBIOTIC COMPLEX EXPDTA SOLUTION NMR NUMMDL 10 AUTHOR J.HABAZETTL,M.G.ALLAN,P.JENSEN,H.SASS,S.GRZESIEK REVDAT 4 15-NOV-23 2MC0 1 LINK ATOM REVDAT 3 14-JUN-23 2MC0 1 REMARK SEQRES LINK REVDAT 2 09-DEC-15 2MC0 1 JRNL REVDAT 1 10-DEC-14 2MC0 0 JRNL AUTH J.HABAZETTL,M.ALLAN,P.R.JENSEN,H.J.SASS,C.J.THOMPSON, JRNL AUTH 2 S.GRZESIEK JRNL TITL STRUCTURAL BASIS AND DYNAMICS OF MULTIDRUG RECOGNITION IN A JRNL TITL 2 MINIMAL BACTERIAL MULTIDRUG RESISTANCE SYSTEM JRNL REF PROC.NATL.ACAD.SCI.USA V. 111 E5498 2014 JRNL REFN ISSN 0027-8424 JRNL PMID 25489067 JRNL DOI 10.1073/PNAS.1412070111 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : XPLOR-NIH 2.30, XPLOR-NIH 2.30 REMARK 3 AUTHORS : SCHWIETERS, KUSZEWSKI, TJANDRA AND CLORE (XPLOR REMARK 3 -NIH), SCHWIETERS, KUSZEWSKI, TJANDRA AND CLORE REMARK 3 (XPLOR-NIH) REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: 1ST. SIMULATED ANNEALING STEP: LIGAND REMARK 3 IS COVALENTLY ATTACHED, BUT ONLY RESTRAINTS OF THE FOLDED PART REMARK 3 OF THE PROTEIN IN APO FORM ARE USED 2ND. SIMULATED ANNEALING REMARK 3 STEP: ALL RESTRAINTS ARE USED REMARK 4 REMARK 4 2MC0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 04-SEP-13. REMARK 100 THE DEPOSITION ID IS D_1000103457. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298; 298; 298; 298 REMARK 210 PH : 5.9; 5.9; NULL; 5.9 REMARK 210 IONIC STRENGTH : 0.055; 0.055; 0.055; 0.011 REMARK 210 PRESSURE : AMBIENT; AMBIENT; AMBIENT; REMARK 210 AMBIENT REMARK 210 SAMPLE CONTENTS : 1 MM [U-98% 15N] TIPAS-1, 2 MM REMARK 210 NOSIHEPTIDE-2, 50 MM POTASSIUM REMARK 210 PHOSPHATE-3, 0.02 W/V SODIUM REMARK 210 AZIDE-4, 95% H2O/5% D2O; 1 MM [U- REMARK 210 99% 13C; U-99% 15N] TIPAS-5, 2 REMARK 210 MM NOSIHEPTIDE-6, 50 MM REMARK 210 POTASSIUM PHOSPHATE-7, 0.02 W/V REMARK 210 SODIUM AZIDE-8, 95% H2O/5% D2O; REMARK 210 1 MM [U-99% 13C; U-99% 15N] REMARK 210 TIPAS-9, 2 MM NOSIHEPTIDE-10, 50 REMARK 210 MM POTASSIUM PHOSPHATE-11, 0.02 REMARK 210 W/V SODIUM AZIDE-12, 100% D2O; REMARK 210 0.8 MM [U-99% 13C; U-99% 15N] REMARK 210 TIPAS-13, 1.6 MM NOSIHEPTIDE-14, REMARK 210 10 MM POTASSIUM PHOSPHATE-15, 10 REMARK 210 MG/ML PF1 PHAGE-16, 95% H2O/5% REMARK 210 D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : 2D 1H-15N HSQC; 2D 1H-13C HSQC REMARK 210 ALIPHATIC; 3D HNCO; 3D CBCA(CO) REMARK 210 NH; 3D C(CO)NH; 3D HBHA(CO)NH; REMARK 210 3D HC(CO)NH TOCSY; 3D HCCH-TOCSY; REMARK 210 3D HNHA; 3D 1H-15N NOESY; 3D 1H- REMARK 210 13C NOESY ALIPHATIC; 3D 1H-13C REMARK 210 NOESY AROMATIC; 2D 1H-1H NOESY/ REMARK 210 FILTER AGAINST 13C-15N; 2D 1H-1H REMARK 210 TOCSY/FILTER AGAINST 13C-15N; REMARK 210 DOUBLET-SEPARATED 2D 1H-15N HSQC; REMARK 210 J-RESOLVED CT 13C-HSQC; 3D REMARK 210 CBCANH REMARK 210 SPECTROMETER FIELD STRENGTH : 600 MHZ; 800 MHZ REMARK 210 SPECTROMETER MODEL : DRX REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NMRPIPE 2012, SPARKY 3.115, REMARK 210 TOPSPIN, PIPP, XEASY, TALOS REMARK 210 TALOS+, PROCHECKNMR, XWINNMR REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 10 REMARK 210 CONFORMERS, SELECTION CRITERIA : STRUCTURES WITH THE LOWEST REMARK 210 ENERGY REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: NULL REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 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: DIMERIC 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 400 REMARK 400 COMPOUND REMARK 400 REMARK 400 THE NOSIHEPTIDE BOUND FORM IS THIOPEPTIDE, A MEMBER OF ANTIBIOTIC REMARK 400 CLASS. REMARK 400 REMARK 400 GROUP: 1 REMARK 400 NAME: NOSIHEPTIDE BOUND FORM REMARK 400 CHAIN: B REMARK 400 COMPONENT_1: PEPTIDE LIKE POLYMER REMARK 400 COMPONENT_2: RESIDUE NO1 REMARK 400 DESCRIPTION: NULL REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 465 SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 MODELS 1-10 REMARK 465 RES C SSSEQI REMARK 465 MET A 110 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS 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 PHE A 174 H MET A 178 1.54 REMARK 500 O GLY A 188 OD1 ASP A 191 2.13 REMARK 500 ND2 ASN A 228 O BB9 B 505 2.19 REMARK 500 O TRP A 139 OD1 ASN A 141 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 1 SER B 501 CA SER B 501 CB -0.154 REMARK 500 2 SER B 501 CA SER B 501 CB -0.151 REMARK 500 3 SER B 501 CA SER B 501 CB -0.152 REMARK 500 4 SER B 501 CA SER B 501 CB -0.151 REMARK 500 5 SER B 501 CA SER B 501 CB -0.153 REMARK 500 6 SER B 501 CA SER B 501 CB -0.149 REMARK 500 7 SER B 501 CA SER B 501 CB -0.150 REMARK 500 8 SER B 501 CA SER B 501 CB -0.150 REMARK 500 9 SER B 501 CA SER B 501 CB -0.152 REMARK 500 10 SER B 501 CA SER B 501 CB -0.151 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 1 ASP A 125 -26.50 107.03 REMARK 500 1 ASN A 141 21.02 168.71 REMARK 500 1 HIS A 204 -53.50 -133.66 REMARK 500 1 TYR A 205 144.77 -171.55 REMARK 500 1 MET A 211 -75.00 -53.62 REMARK 500 1 GLU A 223 -5.29 -47.90 REMARK 500 1 LYS A 233 119.85 -160.96 REMARK 500 1 LEU A 236 -36.68 -131.31 REMARK 500 1 THR B 503 -4.67 -173.51 REMARK 500 1 3GL B 506 -39.05 -133.10 REMARK 500 1 CYS B 508 -163.56 -119.78 REMARK 500 2 ASP A 125 12.68 105.03 REMARK 500 2 ASN A 141 21.09 165.86 REMARK 500 2 HIS A 204 -53.58 -135.26 REMARK 500 2 MET A 211 -76.67 -57.06 REMARK 500 2 LYS A 233 119.99 -162.25 REMARK 500 2 LEU A 236 -34.93 -131.04 REMARK 500 2 THR B 503 -16.48 -173.91 REMARK 500 2 CYS B 508 -162.44 -122.36 REMARK 500 3 PRO A 116 -39.99 -38.79 REMARK 500 3 ASP A 125 12.67 102.64 REMARK 500 3 ASN A 141 22.03 176.12 REMARK 500 3 HIS A 204 -68.42 -124.80 REMARK 500 3 GLU A 210 -92.06 -60.46 REMARK 500 3 HIS A 212 -78.61 -31.86 REMARK 500 3 LYS A 233 96.18 -160.56 REMARK 500 3 THR B 503 -4.99 -174.18 REMARK 500 3 3GL B 506 -50.06 -125.06 REMARK 500 3 CYS B 508 -165.97 -122.52 REMARK 500 4 ASP A 125 19.01 -146.42 REMARK 500 4 ASN A 141 16.07 -170.66 REMARK 500 4 HIS A 204 -68.52 -133.86 REMARK 500 4 ASP A 206 107.06 -38.00 REMARK 500 4 GLU A 210 -92.48 -49.46 REMARK 500 4 HIS A 212 -78.72 -33.33 REMARK 500 4 LYS A 233 97.41 -161.22 REMARK 500 4 THR B 503 -17.52 -172.42 REMARK 500 4 3GL B 506 -50.77 -122.57 REMARK 500 5 ASP A 125 19.30 -144.75 REMARK 500 5 ASN A 141 21.86 -176.86 REMARK 500 5 HIS A 204 -49.07 -134.21 REMARK 500 5 TYR A 205 147.06 -175.69 REMARK 500 5 ASP A 206 109.58 -52.76 REMARK 500 5 GLU A 210 -92.22 -51.12 REMARK 500 5 HIS A 212 -79.90 -33.08 REMARK 500 5 GLU A 223 -4.74 -47.06 REMARK 500 5 LYS A 233 119.22 -160.57 REMARK 500 5 LEU A 236 -33.36 -132.84 REMARK 500 5 THR B 503 -31.31 -177.15 REMARK 500 5 3GL B 506 -52.73 -122.62 REMARK 500 REMARK 500 THIS ENTRY HAS 89 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 4 BB9 B 502 11.10 REMARK 500 5 BB9 B 502 10.79 REMARK 500 10 BB9 B 502 11.04 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 NO1 B 601 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR CHAIN B OF NOSIHEPTIDE REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1NY9 RELATED DB: PDB REMARK 900 APO TIPAS REMARK 900 RELATED ID: 2MBZ RELATED DB: PDB REMARK 900 TIPAS IN COMPLEX WITH THE ANTIBIOTIC PROMOTHIOCIN A REMARK 900 RELATED ID: 19421 RELATED DB: BMRB REMARK 900 CHEMICAL SHIFTS OF TIPAS IN COMPLEX WITH THE ANTIBIOTIC REMARK 900 PROMOTHIOCIN A REMARK 900 RELATED ID: 19422 RELATED DB: BMRB DBREF 2MC0 A 110 253 UNP P0A4T9 TIPA_STRLI 110 253 DBREF 2MC0 B 501 513 PDB 2MC0 2MC0 501 513 SEQRES 1 A 144 MET GLY ILE ASN LEU THR PRO GLU GLU LYS PHE GLU VAL SEQRES 2 A 144 PHE GLY ASP PHE ASP PRO ASP GLN TYR GLU GLU GLU VAL SEQRES 3 A 144 ARG GLU ARG TRP GLY ASN THR ASP ALA TYR ARG GLN SER SEQRES 4 A 144 LYS GLU LYS THR ALA SER TYR THR LYS GLU ASP TRP GLN SEQRES 5 A 144 ARG ILE GLN ASP GLU ALA ASP GLU LEU THR ARG ARG PHE SEQRES 6 A 144 VAL ALA LEU MET ASP ALA GLY GLU PRO ALA ASP SER GLU SEQRES 7 A 144 GLY ALA MET ASP ALA ALA GLU ASP HIS ARG GLN GLY ILE SEQRES 8 A 144 ALA ARG ASN HIS TYR ASP CYS GLY TYR GLU MET HIS THR SEQRES 9 A 144 CYS LEU GLY GLU MET TYR VAL SER ASP GLU ARG PHE THR SEQRES 10 A 144 ARG ASN ILE ASP ALA ALA LYS PRO GLY LEU ALA ALA TYR SEQRES 11 A 144 MET ARG ASP ALA ILE LEU ALA ASN ALA VAL ARG HIS THR SEQRES 12 A 144 PRO SEQRES 1 B 13 SER BB9 THR DBU BB9 3GL BB9 CYS BB9 MH6 BB9 ALA NH2 MODRES 2MC0 BB9 B 502 CYS MODRES 2MC0 DBU B 504 THR (2Z)-2-AMINOBUT-2-ENOIC ACID MODRES 2MC0 BB9 B 505 CYS MODRES 2MC0 3GL B 506 GLU MODRES 2MC0 BB9 B 507 CYS MODRES 2MC0 BB9 B 509 CYS MODRES 2MC0 MH6 B 510 SER 3-HYDROXY-2-IMINOPROPANOIC ACID MODRES 2MC0 BB9 B 511 CYS HET BB9 B 502 7 HET DBU B 504 10 HET BB9 B 505 7 HET 3GL B 506 14 HET BB9 B 507 7 HET BB9 B 509 6 HET MH6 B 510 5 HET BB9 B 511 7 HET NH2 B 513 3 HET NO1 B 601 22 HETNAM BB9 (2Z)-2-AMINO-3-SULFANYLPROP-2-ENOIC ACID HETNAM DBU (2Z)-2-AMINOBUT-2-ENOIC ACID HETNAM 3GL (2S,4S)-2-AMINO-4-HYDROXY-PENTANEDIOIC ACID HETNAM MH6 3-HYDROXY-2-IMINOPROPANOIC ACID HETNAM NH2 AMINO GROUP HETNAM NO1 4-(HYDROXYMETHYL)-3-METHYL-1H-INDOLE-2-CARBOXYLIC ACID HETSYN DBU Z-DEHYDROBUTYRINE HETSYN 3GL 4-HYDROXY-GLUTAMIC-ACID FORMUL 2 BB9 5(C3 H5 N O2 S) FORMUL 2 DBU C4 H7 N O2 FORMUL 2 3GL C5 H9 N O5 FORMUL 2 MH6 C3 H5 N O3 FORMUL 2 NH2 H2 N FORMUL 3 NO1 C11 H11 N O3 HELIX 1 1 THR A 115 PHE A 123 1 9 HELIX 2 2 ASP A 127 TRP A 139 1 13 HELIX 3 3 THR A 142 ALA A 153 1 12 HELIX 4 4 THR A 156 ASP A 179 1 24 HELIX 5 5 SER A 186 ARG A 202 1 17 HELIX 6 6 GLY A 208 MET A 218 1 11 HELIX 7 7 ASP A 222 ALA A 231 1 10 HELIX 8 8 LEU A 236 THR A 252 1 17 LINK SG CYS A 214 CB ALA B 512 1555 1555 1.82 LINK C SER B 501 N BB9 B 502 1555 1555 1.36 LINK C SER B 501 SG BB9 B 502 1555 1555 1.67 LINK CA SER B 501 C BB9 B 509 1555 1555 1.38 LINK CB SER B 501 CB MH6 B 510 1555 1555 1.38 LINK C BB9 B 502 N THR B 503 1555 1555 1.33 LINK C THR B 503 N DBU B 504 1555 1555 1.33 LINK C DBU B 504 N BB9 B 505 1555 1555 1.36 LINK C DBU B 504 SG BB9 B 505 1555 1555 1.67 LINK C BB9 B 505 N 3GL B 506 1555 1555 1.32 LINK C 3GL B 506 N BB9 B 507 1555 1555 1.36 LINK C 3GL B 506 SG BB9 B 507 1555 1555 1.67 LINK OE1 3GL B 506 CF NO1 B 601 1555 1555 1.42 LINK C BB9 B 507 N CYS B 508 1555 1555 1.33 LINK C CYS B 508 N BB9 B 509 1555 1555 1.35 LINK C CYS B 508 SG BB9 B 509 1555 1555 1.67 LINK SG CYS B 508 C NO1 B 601 1555 1555 1.76 LINK C BB9 B 509 N MH6 B 510 1555 1555 1.36 LINK C MH6 B 510 N BB9 B 511 1555 1555 1.36 LINK C MH6 B 510 SG BB9 B 511 1555 1555 1.67 LINK C BB9 B 511 N ALA B 512 1555 1555 1.33 LINK C ALA B 512 N NH2 B 513 1555 1555 1.33 SITE 1 AC1 8 PHE A 123 SER A 148 TRP A 160 HIS A 204 SITE 2 AC1 8 BB9 B 502 THR B 503 3GL B 506 CYS B 508 SITE 1 AC2 21 PHE A 123 PHE A 126 TYR A 131 VAL A 135 SITE 2 AC2 21 ARG A 138 TRP A 139 THR A 142 ALA A 144 SITE 3 AC2 21 TYR A 145 ILE A 200 HIS A 204 MET A 211 SITE 4 AC2 21 CYS A 214 LEU A 215 MET A 218 TYR A 219 SITE 5 AC2 21 ARG A 224 PHE A 225 ASN A 228 ILE A 229 SITE 6 AC2 21 NO1 B 601 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 MODEL 1