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Protein

Photosystem II reaction center protein H

Gene

psbH

Organism
Cyanidium caldarium (Red alga)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at protein leveli

Functioni

One of the components of the core complex of photosystem II (PSII), required for its stability and/or assembly. PSII is a light-driven water:plastoquinone oxidoreductase that uses light energy to abstract electrons from H2O, generating O2 and a proton gradient subsequently used for ATP formation. It consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation.UniRule annotation

GO - Molecular functioni

GO - Biological processi

Keywordsi

Biological processPhotosynthesis

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem II reaction center protein HUniRule annotation
Short name:
PSII-HUniRule annotation
Gene namesi
Name:psbHUniRule annotation
Encoded oniPlastid; Chloroplast
OrganismiCyanidium caldarium (Red alga)
Taxonomic identifieri2771 [NCBI]
Taxonomic lineageiEukaryotaRhodophytaBangiophyceaeCyanidialesCyanidiaceaeCyanidium

Subcellular locationi

  • Plastidchloroplast thylakoid membrane UniRule annotation; Single-pass membrane protein UniRule annotation

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei29 – 49HelicalUniRule annotationAdd BLAST21

GO - Cellular componenti

Keywords - Cellular componenti

Chloroplast, Membrane, Photosystem II, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000705051 – 67Photosystem II reaction center protein HAdd BLAST67

Interactioni

Subunit structurei

PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins of the oxygen-evolving complex and a large number of cofactors. It forms dimeric complexes.UniRule annotation

Structurei

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4YUUX-ray2.77H1/H2/h1/h21-67[»]
ProteinModelPortaliO19925.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the PsbH family.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

Gene3Di1.20.5.880. 1 hit.
HAMAPiMF_00752. PSII_PsbH. 1 hit.
InterProiView protein in InterPro
IPR001056. PSII_PsbH.
PfamiView protein in Pfam
PF00737. PsbH. 1 hit.
ProDomiView protein in ProDom or Entries sharing at least one domain
PD003584. PSII_PsbH. 1 hit.
SUPFAMiSSF161025. SSF161025. 1 hit.

Sequencei

Sequence statusi: Complete.

O19925-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MALKTRLGEL LRPLNSQYGK VAPGWGTTPI MGIFMALFLL FLIIILQIYN
60
SSLILENLDI SWTTLGI
Length:67
Mass (Da):7,495
Last modified:January 1, 1998 - v1
Checksum:i07F7121B5CB6E00F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF022186 Genomic DNA. Translation: AAB82664.1.
PIRiT11993.
RefSeqiNP_045097.1. NC_001840.1.

Genome annotation databases

GeneIDi800137.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF022186 Genomic DNA. Translation: AAB82664.1.
PIRiT11993.
RefSeqiNP_045097.1. NC_001840.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4YUUX-ray2.77H1/H2/h1/h21-67[»]
ProteinModelPortaliO19925.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi800137.

Family and domain databases

Gene3Di1.20.5.880. 1 hit.
HAMAPiMF_00752. PSII_PsbH. 1 hit.
InterProiView protein in InterPro
IPR001056. PSII_PsbH.
PfamiView protein in Pfam
PF00737. PsbH. 1 hit.
ProDomiView protein in ProDom or Entries sharing at least one domain
PD003584. PSII_PsbH. 1 hit.
SUPFAMiSSF161025. SSF161025. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiPSBH_CYACA
AccessioniPrimary (citable) accession number: O19925
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: January 1, 1998
Last modified: April 12, 2017
This is version 69 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)

Miscellaneousi

Keywords - Technical termi

3D-structure

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.