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Protein

Photosystem I reaction center subunit IV

Gene

psaE

Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Stabilizes the interaction between PsaC and the PSI core, assists the docking of the ferredoxin to PSI and interacts with ferredoxin-NADP oxidoreductase.

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Photosynthesis

Enzyme and pathway databases

BioCyciMetaCyc:PSAE-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem I reaction center subunit IV
Alternative name(s):
Photosystem I 8.1 kDa protein
p30 protein
Gene namesi
Name:psaE
Ordered Locus Names:ssr2831
OrganismiSynechocystis sp. (strain PCC 6803 / Kazusa)
Taxonomic identifieri1111708 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesSynechocystis
Proteomesi
  • UP000001425 Componenti: Chromosome

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Photosystem I, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methionineiRemoved1 Publication
Chaini2 – 7473Photosystem I reaction center subunit IVPRO_0000204414Add
BLAST

Interactioni

Protein-protein interaction databases

IntActiP12975. 3 interactions.

Structurei

Secondary structure

1
74
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Beta strandi8 – 114Combined sources
Beta strandi14 – 163Combined sources
Turni17 – 204Combined sources
Beta strandi21 – 288Combined sources
Beta strandi33 – 353Combined sources
Beta strandi37 – 404Combined sources
Turni48 – 503Combined sources
Beta strandi53 – 553Combined sources
Beta strandi58 – 614Combined sources
Helixi63 – 653Combined sources
Beta strandi66 – 683Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1GXINMR-E2-74[»]
4KT0X-ray2.80E1-74[»]
4L6VX-ray3.805/E/e1-74[»]
ProteinModelPortaliP12975.
SMRiP12975. Positions 2-74.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP12975.

Family & Domainsi

Sequence similaritiesi

Belongs to the PsaE family.Curated

Phylogenomic databases

HOGENOMiHOG000233431.
InParanoidiP12975.
KOiK02693.
OMAiNYSGINT.
OrthoDBiEOG6KDKX1.
PhylomeDBiP12975.

Family and domain databases

HAMAPiMF_00613. PSI_PsaE.
InterProiIPR008990. Elect_transpt_acc-like_dom.
IPR003375. PSI_PsaE.
[Graphical view]
PfamiPF02427. PSI_PsaE. 1 hit.
[Graphical view]
ProDomiPD004772. PSI_PsaE. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMiSSF50090. SSF50090. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P12975-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MALNRGDKVR IKRTESYWYG DVGTVASVEK SGILYPVIVR FDRVNYNGFS
60 70
GSASGVNTNN FAENELELVQ AAAK
Length:74
Mass (Da):8,145
Last modified:January 23, 2007 - v4
Checksum:i162AD1998CE96C4A
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti10 – 101R → S in AAA88629 (PubMed:2509456).Curated
Sequence conflicti26 – 261A → G AA sequence (PubMed:2105239).Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
J05079 Genomic DNA. Translation: AAA88629.1.
BA000022 Genomic DNA. Translation: BAA18383.1.
PIRiS75924. F1YB4.

Genome annotation databases

EnsemblBacteriaiBAA18383; BAA18383; BAA18383.
KEGGisyn:ssr2831.
PATRICi23840884. VBISynSp132158_1996.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
J05079 Genomic DNA. Translation: AAA88629.1.
BA000022 Genomic DNA. Translation: BAA18383.1.
PIRiS75924. F1YB4.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1GXINMR-E2-74[»]
4KT0X-ray2.80E1-74[»]
4L6VX-ray3.805/E/e1-74[»]
ProteinModelPortaliP12975.
SMRiP12975. Positions 2-74.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP12975. 3 interactions.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAA18383; BAA18383; BAA18383.
KEGGisyn:ssr2831.
PATRICi23840884. VBISynSp132158_1996.

Phylogenomic databases

HOGENOMiHOG000233431.
InParanoidiP12975.
KOiK02693.
OMAiNYSGINT.
OrthoDBiEOG6KDKX1.
PhylomeDBiP12975.

Enzyme and pathway databases

BioCyciMetaCyc:PSAE-MONOMER.

Miscellaneous databases

EvolutionaryTraceiP12975.

Family and domain databases

HAMAPiMF_00613. PSI_PsaE.
InterProiIPR008990. Elect_transpt_acc-like_dom.
IPR003375. PSI_PsaE.
[Graphical view]
PfamiPF02427. PSI_PsaE. 1 hit.
[Graphical view]
ProDomiPD004772. PSI_PsaE. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMiSSF50090. SSF50090. 1 hit.
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "Structure and targeted mutagenesis of the gene encoding 8-kDa subunit of photosystem I from the cyanobacterium Synechocystis sp. PCC 6803."
    Chitnis P.R., Reilly P.A., Miedel M.C., Nelson N.
    J. Biol. Chem. 264:18374-18380(1989) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  2. "Sequence analysis of the genome of the unicellular cyanobacterium Synechocystis sp. strain PCC6803. II. Sequence determination of the entire genome and assignment of potential protein-coding regions."
    Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y., Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T., Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.
    , Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.
    DNA Res. 3:109-136(1996) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: PCC 6803 / Kazusa.
  3. "Amino acid sequence of photosystem I subunit IV from the cyanobacterium Synechocystis PCC 6803."
    Rousseau F., Lagoutte B.
    FEBS Lett. 260:241-244(1990) [PubMed] [Europe PMC] [Abstract]
    Cited for: PROTEIN SEQUENCE OF 2-74.

Entry informationi

Entry nameiPSAE_SYNY3
AccessioniPrimary (citable) accession number: P12975
Secondary accession number(s): P74289
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1989
Last sequence update: January 23, 2007
Last modified: March 16, 2016
This is version 127 of the entry and version 4 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
  3. Synechocystis PCC 6803
    Synechocystis (strain PCC 6803): entries and gene names

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.