Structure of PDB 1hcb Chain A

Receptor sequence
>1hcbA (length=258) Species: 9606 (Homo sapiens) [Search protein sequence]
PDWGYDDKNGPEQWSKLYPIANGNNQSPVDIKTSETKHDTSLKPISVSYN
PATAKEIINVGHSFHVNFEDNDNRSVLKGGPFSDSYRLFQFHFHWGSTNE
HGSEHTVDGVKYSAELHVAHWNSAKYSSLAEAASKADGLAVIGVLMKVGE
ANPKLQKVLDALQAIKTKGKRAPFTNFDPSTLLPSSLDFWTYPGSLTHPP
LYESVTWIICKESISVSSEQLAQFRSLLSNVEGDNAVPMQHNNRPTQPLK
GRTVRASF
3D structure
PDB1hcb Enzyme-substrate interactions. Structure of human carbonic anhydrase I complexed with bicarbonate.
ChainA
Resolution1.6 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H64 H94 H96 E106 H119 T199
Catalytic site (residue number reindexed from 1) H62 H92 H94 E104 H117 T197
Enzyme Commision number 4.2.1.1: carbonic anhydrase.
4.2.1.69: cyanamide hydratase.
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 ZN A H94 H96 H119 H92 H94 H117
BS02 BCT A H94 H96 H119 T199 H92 H94 H117 T197 BindingDB: Ki=12000000nM
Gene Ontology
Molecular Function
GO:0004064 arylesterase activity
GO:0004089 carbonate dehydratase activity
GO:0005515 protein binding
GO:0008270 zinc ion binding
GO:0016829 lyase activity
GO:0016836 hydro-lyase activity
GO:0018820 cyanamide hydratase activity
GO:0046872 metal ion binding
Biological Process
GO:0006730 one-carbon metabolic process
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0070062 extracellular exosome

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Biological Process
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Cellular Component
External links
PDB RCSB:1hcb, PDBe:1hcb, PDBj:1hcb
PDBsum1hcb
PubMed8057362
UniProtP00915|CAH1_HUMAN Carbonic anhydrase 1 (Gene Name=CA1)

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