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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 lineageiBacteriaCyanobacteriaSynechococcalesMerismopediaceaeSynechocystis
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)DescriptionActionsGraphical viewLength
Initiator methionineiRemoved1 Publication
ChainiPRO_00002044142 – 74Photosystem I reaction center subunit IVAdd BLAST73

Interactioni

Protein-protein interaction databases

IntActiP12975. 3 interactors.

Structurei

Secondary structure

174
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi8 – 11Combined sources4
Beta strandi14 – 16Combined sources3
Turni17 – 20Combined sources4
Beta strandi21 – 28Combined sources8
Beta strandi33 – 35Combined sources3
Beta strandi37 – 40Combined sources4
Turni48 – 50Combined sources3
Beta strandi53 – 55Combined sources3
Beta strandi58 – 61Combined sources4
Helixi63 – 65Combined sources3
Beta strandi66 – 68Combined sources3

3D structure databases

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

Miscellaneous databases

EvolutionaryTraceiP12975.

Family & Domainsi

Sequence similaritiesi

Belongs to the PsaE family.Curated

Phylogenomic databases

HOGENOMiHOG000233431.
InParanoidiP12975.
KOiK02693.
OMAiNYSGINT.
PhylomeDBiP12975.

Family and domain databases

HAMAPiMF_00613. PSI_PsaE. 1 hit.
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)DescriptionActionsGraphical viewLength
Sequence conflicti10R → S in AAA88629 (PubMed:2509456).Curated1
Sequence conflicti26A → G AA sequence (PubMed:2105239).Curated1

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
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1GXINMR-E2-74[»]
4KT0X-ray2.80E1-74[»]
4L6VX-ray3.805/E/e1-74[»]
ProteinModelPortaliP12975.
SMRiP12975.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP12975. 3 interactors.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

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

Phylogenomic databases

HOGENOMiHOG000233431.
InParanoidiP12975.
KOiK02693.
OMAiNYSGINT.
PhylomeDBiP12975.

Enzyme and pathway databases

BioCyciMetaCyc:PSAE-MONOMER.

Miscellaneous databases

EvolutionaryTraceiP12975.

Family and domain databases

HAMAPiMF_00613. PSI_PsaE. 1 hit.
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...

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: November 2, 2016
This is version 130 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.