Structure of PDB 4xpi Chain D Binding Site BS01

Receptor Information
>4xpi Chain D (length=522) Species: 354 (Azotobacter vinelandii) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
SQQVDKIKASYPLFLDQDYKDMLAKKRDGFEEKYPQDKIDEVFQWTTTKE
YQELNFQREALTVNPAKACQPLGAVLCALGFEKTMPYVHGSQGCVAHFRS
YFNRHFREPVSCVSDSMTEDAAVFGGQQNMKDGLQNCKATYKPDMIAVST
TCMAEVIGDDLNAFINNSKKEGFIPDEFPVPFAHTPSFVGSHVTGWDNMF
EGIARYFTLKSMDDKVVGSNKKINIVPGFETYLGNFRVIKRMLSEMGVGY
SLLSDPEEVLDTPADGQFRMYAGGTTQEEMKDAPNALNTVLLQPWHLEKT
KKFVEGTWKHEVPKLNIPMGLDWTDEFLMKVSEISGQPIPASLTKERGRL
VDMMTDSHTWLHGKRFALWGDPDFVMGLVKFLLELGCEPVHILCHNGNKR
WKKAVDAILAASPYGKNATVYIGKDLWHLRSLVFTDKPDFMIGNSYGKFI
QRDTLHKGKEFEVPLIRIGFPIFDRHHLHRSTTLGYEGAMQILTTLVNSI
LERLDEETRGMQATDYNHDLVR
Ligand information
Ligand IDCA
InChIInChI=1S/Ca/q+2
InChIKeyBHPQYMZQTOCNFJ-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341[Ca++]
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Ca+2]
FormulaCa
NameCALCIUM ION
ChEMBL
DrugBankDB14577
ZINC
PDB chain4xpi Chain B Residue 601 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB4xpi Fe protein-independent substrate reduction by nitrogenase MoFe protein variants.
Resolution1.97 Å
Binding residue
(original residue number in PDB)		R108 E109
Binding residue
(residue number reindexed from 1)		R107 E108
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) C153 V157
Catalytic site (residue number reindexed from 1) C152 V156
Enzyme Commision number 1.18.6.1: nitrogenase.
Gene Ontology
Molecular Function
GO:0005524 ATP binding
GO:0016163 nitrogenase activity
GO:0016491 oxidoreductase activity
GO:0046872 metal ion binding
GO:0051536 iron-sulfur cluster binding
Biological Process
GO:0009399 nitrogen fixation
Cellular Component
GO:0016612 molybdenum-iron nitrogenase complex

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4xpi, PDBe:4xpi, PDBj:4xpi
PDBsum4xpi
PubMed25831270
UniProtP07329|NIFK_AZOVI Nitrogenase molybdenum-iron protein beta chain (Gene Name=nifK)

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