Structure of PDB 2afi Chain O

Receptor sequence
>2afiO (length=262) Species: 354 (Azotobacter vinelandii) [Search protein sequence]
MRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHS
KAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRG
VITAINFLEEEGAYEDDLDFVFYDVLGDVVCGGFAMPIRENKAQEIYIVC
SGEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALAN
KLGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNK
LLVIPNPITMDE
3D structure
PDB2afi Nitrogenase Complexes: Multiple Docking Sites for a Nucleotide Switch Protein
ChainO
Resolution3.1 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) K10 G12 K15 K41 D129
Catalytic site (residue number reindexed from 1) K9 G11 K14 K40 D128
Enzyme Commision number 1.18.6.1: nitrogenase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 ADP O G12 I13 G14 K15 S16 T17 N185 R213 D214 E221 G11 I12 G13 K14 S15 T16 N184 R212 D213 E220
BS02 SF4 O C97 C132 C96 C131
Gene Ontology
Molecular Function
GO:0005524 ATP binding
GO:0016163 nitrogenase activity
GO:0016491 oxidoreductase activity
GO:0046872 metal ion binding
GO:0051539 4 iron, 4 sulfur cluster binding
Biological Process
GO:0009399 nitrogen fixation

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Molecular Function
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Biological Process
External links
PDB RCSB:2afi, PDBe:2afi, PDBj:2afi
PDBsum2afi
PubMed16123301
UniProtP00459|NIFH1_AZOVI Nitrogenase iron protein 1 (Gene Name=nifH1)

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