Structure of PDB 3hc9 Chain A

Receptor sequence
>3hc9A (length=153) Species: 9796 (Equus caballus) [Search protein sequence]
GLSDGEWQQVLNVWGKVEADIAGHGQEVLIRLFTGHPETLEKFDKFKHLK
TEAEMKASEDLKKVGTVVLTALGGILKKKGHHEAELKPLAQSHATKHKIP
IKYLEFISDAIIHVLHSKHPGDFGADAQGAMTKALELFRNDIAAKYKELG
FQG
3D structure
PDB3hc9 The distal pocket histidine residue in horse heart myoglobin directs the o-binding mode of nitrite to the heme iron.
ChainA
Resolution2.0 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 1.11.1.-
1.7.-.-
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 HEM A K42 F43 K45 V67 V68 L89 S92 H93 H97 I99 Y103 I107 F138 K42 F43 K45 V67 V68 L89 S92 H93 H97 I99 Y103 I107 F138
Gene Ontology
Molecular Function
GO:0004601 peroxidase activity
GO:0005344 oxygen carrier activity
GO:0016491 oxidoreductase activity
GO:0019825 oxygen binding
GO:0020037 heme binding
GO:0046872 metal ion binding
GO:0098809 nitrite reductase activity
Biological Process
GO:0015671 oxygen transport
GO:0019430 removal of superoxide radicals
Cellular Component
GO:0005737 cytoplasm
GO:0016528 sarcoplasm

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Cellular Component
External links
PDB RCSB:3hc9, PDBe:3hc9, PDBj:3hc9
PDBsum3hc9
PubMed19924902
UniProtP68082|MYG_HORSE Myoglobin (Gene Name=MB)

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