Structure of PDB 4xiw Chain A

Receptor sequence
>4xiwA (length=237) Species: 3055 (Chlamydomonas reinhardtii) [Search protein sequence]
AWNYGEVAGPPTWKGVCATGKRQSPINIPLNTSAPKVDAEMGEFDFAYGS
FEKCDVLNTGHGTMQVNFPAGNLAFIGNMELELLQFHFHAPSEHAMDGRR
YAMEAHLVHKNKSTGNLAVLGIMLEPGGLIKNPALSTALEVAPEVPLAKK
PSPKGINPVMLLPKKSKAGTRPFVHYPGSLTTPPCSEGVDWFVFMQPIKV
PDSQILDFMRFVGDNKTYATNTRPLQLLNSRLVEYEL
3D structure
PDB4xiw Crystal Structure and Functional Characterization of Photosystem II-Associated Carbonic Anhydrase CAH3 in Chlamydomonas reinhardtii.
ChainA
Resolution2.6 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H134 H160 H162 E166 H179 T254
Catalytic site (residue number reindexed from 1) H61 H87 H89 E93 H106 T181
Enzyme Commision number 4.2.1.1: carbonic anhydrase.
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 H160 H162 H179 H87 H89 H106
BS02 AZM A H160 H162 H179 L253 T254 T255 H87 H89 H106 L180 T181 T182
BS03 2HP A D118 F119 K238 R244 D45 F46 K165 R171
BS04 2HP A G200 D275 G127 D202
Gene Ontology
Molecular Function
GO:0004089 carbonate dehydratase activity
GO:0008270 zinc ion binding

View graph for
Molecular Function
External links
PDB RCSB:4xiw, PDBe:4xiw, PDBj:4xiw
PDBsum4xiw
PubMed25617045
UniProtQ39588

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