Structure of PDB 4xiw Chain H

Receptor sequence
>4xiwH (length=239) Species: 3055 (Chlamydomonas reinhardtii) [Search protein sequence]
MAAWNYGEVAGPPTWKGVCATGKRQSPINIPLNTSAPKVDAEMGEFDFAY
GSFEKCDVLNTGHGTMQVNFPAGNLAFIGNMELELLQFHFHAPSEHAMDG
RRYAMEAHLVHKNKSTGNLAVLGIMLEPGGLIKNPALSTALEVAPEVPLA
KKPSPKGINPVMLLPKKSKAGTRPFVHYPGSLTTPPCSEGVDWFVFMQPI
KVPDSQILDFMRFVGDNKTYATNTRPLQLLNSRLVEYEL
3D structure
PDB4xiw Crystal Structure and Functional Characterization of Photosystem II-Associated Carbonic Anhydrase CAH3 in Chlamydomonas reinhardtii.
ChainH
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) H63 H89 H91 E95 H108 T183
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 H H160 H162 H179 H89 H91 H108
BS02 AZM H Q158 H160 H179 L253 T254 T255 Q87 H89 H108 L182 T183 T184
BS03 2HP H G93 K94 R95 E260 G22 K23 R24 E189
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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