Structure of PDB 3hep Chain A

Receptor sequence
>3hepA (length=153) Species: 9796 (Equus caballus) [Search protein sequence]
GLSDGEWQQVLNVWGKVEADIAGHGQEVLIRLFTGHPETLEKFDKFKHLK
TEAEMKASEDLKKVGTVVLTALGGILKKKGHHEAELKPLAQSHATKHKIP
IKYLEFISDAIIHVLHSKHPGDFGADAQGAMTKALELFRNDIAAKYKELG
FQG
3D structure
PDB3hep The distal pocket histidine residue in horse heart myoglobin directs the o-binding mode of nitrite to the heme iron.
ChainA
Resolution1.95 Å
3D
structure
[Spin on]
[Spin off]
[Reset orientation]

[High quality]
[Low quality]

[White background]
[Black background]

[Download]
[Download structure with residue number starting from 1]
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 V64 V67 V68 L89 S92 H93 H97 I99 Y103 I107 F138 K42 F43 K45 V64 V67 V68 L89 S92 H93 H97 I99 Y103 I107 F138
BS02 NO2 A R31 D109 A110 R31 D109 A110
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

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:3hep, PDBe:3hep, PDBj:3hep
PDBsum3hep
PubMed19924902
UniProtP68082|MYG_HORSE Myoglobin (Gene Name=MB)

[Back to BioLiP]