Structure of PDB 1g21 Chain H

Receptor sequence
>1g21H (length=268) Species: 354 (Azotobacter vinelandii) [Search protein sequence]
MRQCAIYGKGGIGKSTTTQNLVAALAEMGKKVMIVGCDPKADSTRLILHS
KAQNTIMEMAAEAGTVEDLELEDVLKAGYGGVKCVESGGPEPGVGCAGRG
VITAINFLEEEGAYEDDLDFVFYDVGDVVCGGFAMPIRENKAQEIYIVCS
GEMMAMYAANNISKGIVKYANSGSVRLGGLICNSRNTDREDELIIALANK
LGTQMIHFVPRDNVVQRAEIRRMTVIEYDPKAKQADEYRALARKVVDNKL
LVIPNPITMDELEELLME
3D structure
PDB1g21 MgATP-Bound and nucleotide-free structures of a nitrogenase protein complex between the Leu 127 Delta-Fe-protein and the MoFe-protein.
ChainH
Resolution3.0 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 D127
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 SF4 H C97 G99 V131 C132 C96 G98 V129 C130
BS02 ATP H K10 M156 K9 M154
BS03 ATP H G11 G12 G14 K15 S16 T17 P212 R213 V217 E221 Q236 G10 G11 G13 K14 S15 T16 P210 R211 V215 E219 Q234
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:1g21, PDBe:1g21, PDBj:1g21
PDBsum1g21
PubMed11170380
UniProtP00459|NIFH1_AZOVI Nitrogenase iron protein 1 (Gene Name=nifH1)

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