Structure of PDB 3heo Chain A

Receptor sequence
>3heoA (length=153) Species: 9796 (Equus caballus) [Search protein sequence]
GLSDGEWQQVLNVWGKVEADIAGHGQEVLIRLFTGHPETLEKFDKFKHLK
TEAEMKASEDLKKVGTRVLTALGGILKKKGHHEAELKPLAQSHATKHKIP
IKYLEFISDAIIHVLHSKHPGDFGADAQGAMTKALELFRNDIAAKYKELG
FQG
3D structure
PDB3heo 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 R67 V68 L89 H93 K96 H97 I99 Y103 I107 F138 K42 F43 R67 V68 L89 H93 K96 H97 I99 Y103 I107 F138
BS02 NO2 A F43 R67 V68 F43 R67 V68
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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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:3heo, PDBe:3heo, PDBj:3heo
PDBsum3heo
PubMed19924902
UniProtP68082|MYG_HORSE Myoglobin (Gene Name=MB)

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