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Protein

Photosystem I reaction center subunit PsaK 2

Gene

psaK2

Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at protein leveli

Functioni

GO - Biological processi

Complete GO annotation...

Keywords - Biological processi

Photosynthesis

Enzyme and pathway databases

BioCyciMetaCyc:MONOMER-16589.

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem I reaction center subunit PsaK 2
Alternative name(s):
Photosystem I subunit X 2
Gene namesi
Name:psaK2
Ordered Locus Names:sll0629
OrganismiSynechocystis sp. (strain PCC 6803 / Kazusa)
Taxonomic identifieri1111708 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesMerismopediaceaeSynechocystis
Proteomesi
  • UP000001425 Componenti: Chromosome

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei20 – 42HelicalSequence analysisAdd BLAST23
Transmembranei67 – 89HelicalSequence analysisAdd BLAST23

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Membrane, Photosystem I, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_0000029411? – 90Photosystem I reaction center subunit PsaK 2
PropeptideiPRO_00000294101 – ?Sequence analysis

Proteomic databases

PRIDEiP74564.

Structurei

Secondary structure

190
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi18 – 37Combined sources20
Helixi64 – 66Combined sources3
Helixi67 – 88Combined sources22

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4KT0X-ray2.80K1-90[»]
4L6VX-ray3.800/K/k1-90[»]
ProteinModelPortaliP74564.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the PsaG/PsaK family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

HOGENOMiHOG000232829.
KOiK02698.
OMAiFAIQKTG.

Family and domain databases

Gene3Di1.20.860.20. 1 hit.
HAMAPiMF_00474. PSI_PsaK. 1 hit.
InterProiIPR000549. PSI_PsaG/PsaK.
IPR017492. PSI_PsaK.
[Graphical view]
PfamiPF01241. PSI_PSAK. 1 hit.
[Graphical view]
SUPFAMiSSF81563. SSF81563. 1 hit.
TIGRFAMsiTIGR03049. PS_I_psaK. 1 hit.
PROSITEiPS01026. PHOTOSYSTEM_I_PSAGK. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

P74564-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MFNTALLLAQ ASPTTAGWSL SVGIIMCLCN VFAFVIGYFA IQKTGKGKDL
60 70 80 90
ALPQLASKKT FGLPELLATM SFGHILGAGM VLGLASSGIL
Length:90
Mass (Da):9,306
Last modified:August 2, 2002 - v2
Checksum:i1D1C642D3D12589B
GO

Sequence cautioni

The sequence BAA18671 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000022 Genomic DNA. Translation: BAA18671.1. Different initiation.
PIRiS76759.

Genome annotation databases

EnsemblBacteriaiBAA18671; BAA18671; BAA18671.
KEGGisyn:sll0629.
PATRICi23843500. VBISynSp132158_3285.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000022 Genomic DNA. Translation: BAA18671.1. Different initiation.
PIRiS76759.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
4KT0X-ray2.80K1-90[»]
4L6VX-ray3.800/K/k1-90[»]
ProteinModelPortaliP74564.
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiP74564.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAA18671; BAA18671; BAA18671.
KEGGisyn:sll0629.
PATRICi23843500. VBISynSp132158_3285.

Phylogenomic databases

HOGENOMiHOG000232829.
KOiK02698.
OMAiFAIQKTG.

Enzyme and pathway databases

BioCyciMetaCyc:MONOMER-16589.

Family and domain databases

Gene3Di1.20.860.20. 1 hit.
HAMAPiMF_00474. PSI_PsaK. 1 hit.
InterProiIPR000549. PSI_PsaG/PsaK.
IPR017492. PSI_PsaK.
[Graphical view]
PfamiPF01241. PSI_PSAK. 1 hit.
[Graphical view]
SUPFAMiSSF81563. SSF81563. 1 hit.
TIGRFAMsiTIGR03049. PS_I_psaK. 1 hit.
PROSITEiPS01026. PHOTOSYSTEM_I_PSAGK. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiPSAK2_SYNY3
AccessioniPrimary (citable) accession number: P74564
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 2, 2002
Last sequence update: August 2, 2002
Last modified: November 2, 2016
This is version 107 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, 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.