Structure of PDB 3vkt Chain A Binding Site BS01

Receptor Information
>3vkt Chain A (length=538) Species: 4097 (Nicotiana tabacum) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
VAAERLEPRVEEKDGYWILKEQFRKGINPQEKVKIEKEPMKLFMENGIEE
LAKIPIEEIDQSKLTKDDIDVRLKWLGLFHRRKNQYGRFMMRLKLPNGVT
TSAQTRYLASVIRKYGKEGCADITTRQNWQIRGVVLPDVPEILKGLAEVG
LTSLQSGMDNVRNPVGNPLAGIDPEEIVDTRPYTNLLSQFITGNSRGNPA
VSNLPRKWNPCVVGSHDLYEHPHINDLAYMPATKDGRFGFNLLVGGFFSA
KRCDEAIPLDAWVPADDVVPVCRAILEAFRDLGFRGNRQKCRMMWLIDEL
GVEGFRAEVEKRMPQQQLERASPEDLVQKQWERRDYLGVHPQKQEGYSFI
GLHIPVGRVQADDMDELARLADEYGSGEIRLTVEQNIIIPNIETSKIEAL
LKEPVLSTFSPDPPILMKGLVACTGNQFCGQAIIETKARSLKITEEVQRQ
VSLTKPVRMHWTGCPNTCAQVQVADIGFMGCLTRDKNGKTVEGADVFLGG
RIGSDSHLGEVYKKAVPCDDLVPLVVDLLVNNFGAVPR
Ligand information
Ligand IDSRM
InChIInChI=1S/C42H46N4O16.Fe/c1-41(17-39(59)60)23(5-9-35(51)52)29-14-27-21(11-37(55)56)19(3-7-33(47)48)25(43-27)13-26-20(4-8-34(49)50)22(12-38(57)58)28(44-26)15-31-42(2,18-40(61)62)24(6-10-36(53)54)30(46-31)16-32(41)45-29;/h13-16,23-24H,3-12,17-18H2,1-2H3,(H10,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62);/q;+2/p-2/t23?,24-,41+,42+;/m1./s1
InChIKeyDLKSSIHHLYNIKN-MWBYXLBFSA-L
SMILES
SoftwareSMILES
OpenEye OEToolkits 2.0.7C[C@@]1(C(C2=[N]3C1=Cc4c(c(c5n4[Fe]36N7C(=C5)C(=C(C7=CC8=[N]6C(=C2)[C@@](C8CCC(=O)O)(C)CC(=O)O)CC(=O)O)CCC(=O)O)CCC(=O)O)CC(=O)O)CCC(=O)O)CC(=O)O
ACDLabs 10.04O=C(O)CCC=6C7=Cc1c(c(c2n1[Fe]84N5C(=CC3=C(CCC(=O)O)C(C(=C2)N34)(C)CC(=O)O)C(C(=C5C=C(C=6CC(=O)O)N78)CCC(=O)O)(C)CC(=O)O)CC(=O)O)CCC(=O)O
OpenEye OEToolkits 2.0.7CC1(C(C2=[N]3C1=Cc4c(c(c5n4[Fe]36N7C(=C5)C(=C(C7=CC8=[N]6C(=C2)C(C8CCC(=O)O)(C)CC(=O)O)CC(=O)O)CCC(=O)O)CCC(=O)O)CC(=O)O)CCC(=O)O)CC(=O)O
CACTVS 3.385C[C@]1(CC(O)=O)[C@@H](CCC(O)=O)C2=NC1=CC3=NC(=Cc4n5[Fe][N@@]6C(=C2)C(=C(CCC(O)=O)C6=Cc5c(CCC(O)=O)c4CC(O)=O)CC(O)=O)[C@@](C)(CC(O)=O)[C@@H]3CCC(O)=O
CACTVS 3.385C[C]1(CC(O)=O)[CH](CCC(O)=O)C2=NC1=CC3=NC(=Cc4n5[Fe][N]6C(=C2)C(=C(CCC(O)=O)C6=Cc5c(CCC(O)=O)c4CC(O)=O)CC(O)=O)[C](C)(CC(O)=O)[CH]3CCC(O)=O
FormulaC42 H44 Fe N4 O16
NameSIROHEME
ChEMBL
DrugBank
ZINC
PDB chain3vkt Chain A Residue 601 [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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PDB3vkt The reductive reaction mechanism of tobacco nitrite reductase derived from a combination of crystal structures and ultraviolet-visible microspectroscopy
Resolution1.3 Å
Binding residue
(original residue number in PDB)		F96 R98 M107 R109 T141 T142 R143 N145 Q147 R149 R223 K224 N226 F264 F265 S266 R309 C440 T441 C446 N483 C485 Q487
Binding residue
(residue number reindexed from 1)		F79 R81 M90 R92 T124 T125 R126 N128 Q130 R132 R206 K207 N209 F247 F248 S249 R292 C423 T424 C429 N466 C468 Q470
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) R109 R179 R223 K224 N226 C440 C446 G480 C481 C485 A486
Catalytic site (residue number reindexed from 1) R92 R162 R206 K207 N209 C423 C429 G463 C464 C468 A469
Enzyme Commision number 1.7.7.1: ferredoxin--nitrite reductase.
Gene Ontology
Molecular Function
GO:0016491 oxidoreductase activity
GO:0020037 heme binding
GO:0046872 metal ion binding
GO:0048307 ferredoxin-nitrite reductase activity
GO:0051536 iron-sulfur cluster binding
GO:0051539 4 iron, 4 sulfur cluster binding
Biological Process
GO:0042128 nitrate assimilation

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:3vkt, PDBe:3vkt, PDBj:3vkt
PDBsum3vkt
PubMed22499059
UniProtQ76KB0

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