Structure of PDB 1n2z Chain B Binding Site BS01

Receptor Information
>1n2z Chain B (length=245) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
AAPRVITLSPANTELAFAAGITPVGVSSYSDYPPQAQKIEQVSTWQGMNL
ERIVALKPDLVIAWRGGNAERQVDQLASLGIKVMWVDATSIEQIANALRQ
LAPWSPQPDKAEQAAQSLLDQYAQLKAQYADKPKKRVFLQFGINPPFTSG
KESIQNQVLEVCGGENIFKDSRVPWPQVSREQVLARSPQAIVITGGPDQI
PKIKQYWGEQLKIPVIPLTSDWFERASPRIILAAQQLCNALSQVD
Ligand information
Ligand IDCNC
InChIInChI=1S/C62H90N13O14P.CN.Co/c1-29-20-39-40(21-30(29)2)75(28-70-39)57-52(84)53(41(27-76)87-57)89-90(85,86)88-31(3)26-69-49(83)18-19-59(8)37(22-46(66)80)56-62(11)61(10,25-48(68)82)36(14-17-45(65)79)51(74-62)33(5)55-60(9,24-47(67)81)34(12-15-43(63)77)38(71-55)23-42-58(6,7)35(13-16-44(64)78)50(72-42)32(4)54(59)73-56;1-2;/h20-21,23,28,31,34-37,41,52-53,56-57,76,84H,12-19,22,24-27H2,1-11H3,(H15,63,64,65,66,67,68,69,71,72,73,74,77,78,79,80,81,82,83,85,86);;/q;;+3/p-1/t31-,34-,35-,36-,37+,41-,52-,53-,56?,57+,59-,60+,61+,62+;;/m1../s1
InChIKeySYZBZQWSWIJYAR-UVKKECPRSA-M
SMILES
SoftwareSMILES
CACTVS 3.385C[CH](CNC(=O)CC[C]1(C)[CH](CC(N)=O)[CH]2[N]([Co++]C#N)C1=C(C)C3=NC(=CC4=NC(=C(C)C5=N[C]2(C)[C](C)(CC(N)=O)[CH]5CCC(N)=O)[C](C)(CC(N)=O)[CH]4CCC(N)=O)C(C)(C)[CH]3CCC(N)=O)O[P](O)(=O)O[CH]6[CH](O)[CH](O[CH]6CO)n7cnc8cc(C)c(C)cc78
CACTVS 3.385C[C@H](CNC(=O)CC[C@]1(C)[C@@H](CC(N)=O)[C@H]2[N@@]([Co++]C#N)C1=C(C)C3=NC(=CC4=NC(=C(C)C5=N[C@]2(C)[C@@](C)(CC(N)=O)[C@@H]5CCC(N)=O)[C@@](C)(CC(N)=O)[C@@H]4CCC(N)=O)C(C)(C)[C@@H]3CCC(N)=O)O[P](O)(=O)O[C@H]6[C@@H](O)[C@H](O[C@@H]6CO)n7cnc8cc(C)c(C)cc78
ACDLabs 12.01NC(=O)CC1(C)C2=C(C)C=3C(CCC(N)=O)C(C)(CC(N)=O)C4(C)N=3[Co+2]35(C#N)N2=C(C=C2n3c(C(CCC(N)=O)C2(C)C)c(C)c2n5C4C(CC(N)=O)C2(C)CCC(=O)NCC(C)OP(=O)(O)OC2C(CO)OC(n3cnc4cc(C)c(C)cc43)C2O)C1CCC(N)=O
OpenEye OEToolkits 2.0.7Cc1cc2c(cc1C)n(cn2)C3C(C(C(O3)CO)OP(=O)(O)OC(C)CNC(=O)CCC4(C(C5C6(C(C(C7=[N]6[Co+2]89(N5C4=C(C1=[N]8C(=CC2=[N]9C(=C7C)C(C2CCC(=O)N)(C)CC(=O)N)C(C1CCC(=O)N)(C)C)C)C#N)CCC(=O)N)(C)CC(=O)N)C)CC(=O)N)C)O
OpenEye OEToolkits 2.0.7Cc1cc2c(cc1C)n(cn2)[C@@H]3[C@@H]([C@@H]([C@H](O3)CO)O[P@@](=O)(O)O[C@H](C)CNC(=O)CC[C@@]4([C@H](C5[C@]6([C@@]([C@@H](C7=[N]6[Co+2]89(N5C4=C(C1=[N]8C(=CC2=[N]9C(=C7C)[C@@]([C@@H]2CCC(=O)N)(C)CC(=O)N)C([C@@H]1CCC(=O)N)(C)C)C)C#N)CCC(=O)N)(C)CC(=O)N)C)CC(=O)N)C)O
FormulaC63 H89 Co N14 O14 P
NameCYANOCOBALAMIN
ChEMBL
DrugBank
ZINC
PDB chain1n2z Chain B Residue 401 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1n2z The structure of Escherichia coli BtuF and binding to its cognate ATP binding cassette transporter
Resolution2.0 Å
Binding residue
(original residue number in PDB)		P31 A32 Y50 W66 W85 G87 G88 F168 W196 E245 R246
Binding residue
(residue number reindexed from 1)		P10 A11 Y29 W45 W64 G66 G67 F147 W175 E224 R225
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0031419 cobalamin binding
Biological Process
GO:0015889 cobalamin transport
Cellular Component
GO:0042597 periplasmic space

View graph for
Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1n2z, PDBe:1n2z, PDBj:1n2z
PDBsum1n2z
PubMed12475936
UniProtP37028|BTUF_ECOLI Vitamin B12-binding protein (Gene Name=btuF)

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