Structure of PDB 8ir8 Chain O Binding Site BS01

Receptor Information

>8ir8 Chain O (length=243) Species: 32053 (Thermostichus vulcanus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]

TLTYDDIVGTGLANKCPTLDDTARGAYPIDSSQTYRIARLCLQPTTFLVK
EEPKNKRQEAEFVPTKLVTRETTSLDQIQGELKVNSDGSLTFVEEDGIDF
QPVTVQMAGGERIPLLFTVKNLVASTQPNVTSITTSTDFKGEFNVPSYRT
ANFLDPKGRGLASGYDSAIALPQAKEEELARANVKRFSLTKGQISLNVAK
VDGRTGEIAGTFESEQLSDDDMGAHEPHEVKIQGVFYASIEPA

Ligand information

Ligand ID

InChI

InChI=1S/Ca/q+2

InChIKey

BHPQYMZQTOCNFJ-UHFFFAOYSA-N

SMILES

Software	SMILES
CACTVS 3.341	[Ca++]
ACDLabs 10.04 OpenEye OEToolkits 1.5.0	[Ca+2]

Formula

Name

CALCIUM ION

PDB chain

8ir8 Chain O Residue 301 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]

Receptor-Ligand Complex Structure

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Structure summary

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PDB	8ir8 Oxygen-evolving photosystem II structures during S1-S2-S3 transitions.
Resolution	2.25 Å
Binding residue (original residue number in PDB)	T138 S139 D141 N200 V201
Binding residue (residue number reindexed from 1)	T135 S136 D138 N197 V198
Annotation score	1

Enzymatic activity

Enzyme Commision number

Gene Ontology

	Molecular Function
GO:0010242	oxygen evolving activity

	Biological Process
GO:0010207	photosystem II assembly
GO:0015979	photosynthesis
GO:0042549	photosystem II stabilization

	Cellular Component
GO:0009523	photosystem II
GO:0009579	thylakoid
GO:0009654	photosystem II oxygen evolving complex
GO:0016020	membrane
GO:0031676	plasma membrane-derived thylakoid membrane

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External links

PDB	RCSB:8ir8, PDBe:8ir8, PDBj:8ir8
PDBsum	8ir8
PubMed	38297122
UniProt	D0VWR2\|PSBO_THEVL Photosystem II extrinsic protein O (Gene Name=psbO)

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