SubmitCancel

Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.

P07826

- PSBA1_SYNY3

UniProt

P07826 - PSBA1_SYNY3

(max 400 entries)x

Your basket is currently empty.

Select item(s) and click on "Add to basket" to create your own collection here
(400 entries max)

Protein

Photosystem Q(B) protein 1

Gene
psbA1, psbA-1, slr1181
Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
Status
Reviewed - Annotation score: 4 out of 5 - Experimental evidence at protein leveli

Functioni

This is one of the two reaction center proteins of photosystem II By similarity.UniRule annotation

Catalytic activityi

2 H2O + 2 plastoquinone + 4 light = O2 + 2 plastoquinol.UniRule annotation

Cofactori

The PsbA/B heterodimer binds P680, the primary electron donor of PSII. It shares a non-heme iron and each subunit binds additional chlorophylls and pheophytin. PsbA provides most of the ligands for the Mn-cluster of the oxygen-evolving complex By similarity.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi170 – 1701Calcium-manganese-oxide cluster [Ca-4Mn-5O]; calcium By similarity
Metal bindingi170 – 1701Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 1 By similarity
Metal bindingi189 – 1891Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 2 By similarity
Metal bindingi215 – 2151Iron; shared with heterodimeric partner By similarity
Metal bindingi272 – 2721Iron; shared with heterodimeric partner By similarity
Metal bindingi332 – 3321Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 2; via tele nitrogen By similarity
Metal bindingi333 – 3331Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 1 By similarity
Metal bindingi333 – 3331Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 3 By similarity
Metal bindingi342 – 3421Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 2 By similarity
Metal bindingi342 – 3421Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 4 By similarity
Sitei344 – 3452Cleavage; by CtpA By similarity
Metal bindingi344 – 3441Calcium-manganese-oxide cluster [Ca-4Mn-5O]; calcium; via carboxylate By similarity
Metal bindingi344 – 3441Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 4; via carboxylate By similarity

GO - Molecular functioni

  1. electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity Source: InterPro
  2. iron ion binding Source: UniProtKB-HAMAP
  3. oxidoreductase activity Source: UniProtKB-KW

GO - Biological processi

  1. photosynthetic electron transport in photosystem II Source: InterPro
  2. response to herbicide Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Electron transport, Herbicide resistance, Photosynthesis, Transport

Keywords - Ligandi

Calcium, Iron, Manganese, Metal-binding

Enzyme and pathway databases

BioCyciMetaCyc:PSBA1-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem Q(B) protein 1 (EC:1.10.3.9)
Alternative name(s):
32 kDa thylakoid membrane protein 1
Photosystem II protein D1 1
Gene namesi
Name:psbA1
Synonyms:psbA-1
Ordered Locus Names:slr1181
OrganismiSynechocystis sp. (strain PCC 6803 / Kazusa)
Taxonomic identifieri1111708 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesSynechocystis
ProteomesiUP000001425: Chromosome

Subcellular locationi

Cellular thylakoid membrane; Multi-pass membrane protein Inferred 1 Publication

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei36 – 5621Helical; Reviewed predictionAdd
BLAST
Transmembranei109 – 12921Helical; Reviewed predictionAdd
BLAST
Transmembranei141 – 16424Helical; Reviewed predictionAdd
BLAST
Transmembranei192 – 21827Helical; Reviewed predictionAdd
BLAST
Transmembranei269 – 28921Helical; Reviewed predictionAdd
BLAST

GO - Cellular componenti

  1. integral component of membrane Source: UniProtKB-KW
  2. photosystem II Source: UniProtKB-KW
  3. thylakoid membrane Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Membrane, Photosystem II, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 344344Photosystem Q(B) protein 1UniRule annotationPRO_0000090492Add
BLAST
Propeptidei345 – 36016 Reviewed predictionPRO_0000316428Add
BLAST

Proteomic databases

PaxDbiP07826.

Interactioni

Subunit structurei

The PsbA/B heterodimer binds the P680 chlorophylls and subsequent electron acceptors. PSII consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. PSII forms dimeric complexes By similarity.

Protein-protein interaction databases

IntActiP07826. 2 interactions.
STRINGi1148.slr1181.

Structurei

3D structure databases

ProteinModelPortaliP07826.
SMRiP07826. Positions 12-344.

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiNOG04871.
HOGENOMiHOG000246913.
KOiK02703.
OMAiHERNVHN.
OrthoDBiEOG6Q2SGP.
PhylomeDBiP07826.

Family and domain databases

Gene3Di1.20.85.10. 1 hit.
HAMAPiMF_01379. PSII_PsbA_D1.
InterProiIPR000484. Photo_RC_L/M.
IPR005867. PSII_D1.
[Graphical view]
PfamiPF00124. Photo_RC. 1 hit.
[Graphical view]
PRINTSiPR00256. REACTNCENTRE.
SUPFAMiSSF81483. SSF81483. 1 hit.
TIGRFAMsiTIGR01151. psbA. 1 hit.
PROSITEiPS00244. REACTION_CENTER. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

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

P07826-1 [UniParc]FASTAAdd to Basket

« Hide

MTTTQLGLQE QSLWSRFCCW ITSTSNRLYI GWFGVLMIPT LLTATTCFII    50
AFIAAPPVDI DGIREPIAGS LLYGNNIITA AVVPSSNAIG LHFYPIWEAH 100
SLDEWLYNGG PYQLIVFHFL IGIFCYLGRQ WELSYRLGMR PWICVAYSAP 150
VAAATATLLI YSIGQGSFSD GLPLGISGTF NFMLVLQAEH NVLMHPFHML 200
GVAGVFGGAL FAAMHGSLVT SSLIRETTEV ESQNQGYKFG QEEETYNIVA 250
AHGYFGRLIF QYASFNNSRA LHFFLGAWPV VGIWFAALAV CCFAFNLNGF 300
NFNQSILDAQ GRPVSTWADV INRANIGFEV MHERNVHNFP LDLASGDAQM 350
VALNAPAIEG 360
Length:360
Mass (Da):39,651
Last modified:November 1, 1997 - v3
Checksum:i41A74A7819FE90D2
GO

Sequence conflict

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti90 – 901G → A in CAA68778. 1 Publication
Sequence conflicti115 – 1151I → N in CAA68778. 1 Publication
Sequence conflicti273 – 2731F → S in CAA68778. 1 Publication

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
Y00885 Genomic DNA. Translation: CAA68778.1.
BA000022 Genomic DNA. Translation: BAA18829.1.
PIRiS76917. F2YB13.
RefSeqiNP_443017.1. NC_000911.1.
YP_005653076.1. NC_017277.1.
YP_007452892.1. NC_020286.1.

Genome annotation databases

EnsemblBacteriaiBAA18829; BAA18829; BAA18829.
GeneIDi951901.
KEGGisyn:slr1181.
syy:SYNGTS_3123.
syz:MYO_131590.
PATRICi23843888. VBISynSp132158_3474.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
Y00885 Genomic DNA. Translation: CAA68778.1 .
BA000022 Genomic DNA. Translation: BAA18829.1 .
PIRi S76917. F2YB13.
RefSeqi NP_443017.1. NC_000911.1.
YP_005653076.1. NC_017277.1.
YP_007452892.1. NC_020286.1.

3D structure databases

ProteinModelPortali P07826.
SMRi P07826. Positions 12-344.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

IntActi P07826. 2 interactions.
STRINGi 1148.slr1181.

Proteomic databases

PaxDbi P07826.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai BAA18829 ; BAA18829 ; BAA18829 .
GeneIDi 951901.
KEGGi syn:slr1181.
syy:SYNGTS_3123.
syz:MYO_131590.
PATRICi 23843888. VBISynSp132158_3474.

Phylogenomic databases

eggNOGi NOG04871.
HOGENOMi HOG000246913.
KOi K02703.
OMAi HERNVHN.
OrthoDBi EOG6Q2SGP.
PhylomeDBi P07826.

Enzyme and pathway databases

BioCyci MetaCyc:PSBA1-MONOMER.

Family and domain databases

Gene3Di 1.20.85.10. 1 hit.
HAMAPi MF_01379. PSII_PsbA_D1.
InterProi IPR000484. Photo_RC_L/M.
IPR005867. PSII_D1.
[Graphical view ]
Pfami PF00124. Photo_RC. 1 hit.
[Graphical view ]
PRINTSi PR00256. REACTNCENTRE.
SUPFAMi SSF81483. SSF81483. 1 hit.
TIGRFAMsi TIGR01151. psbA. 1 hit.
PROSITEi PS00244. REACTION_CENTER. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. "Nucleotide sequence of a member of the psbA multigene family from the unicellular cyanobacterium Synechocystis 6803."
    Osiewacz H.D., McIntosh L.
    Nucleic Acids Res. 15:10585-10585(1987) [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. "Thylakoid protein phosphorylation in evolutionally divergent species with oxygenic photosynthesis."
    Pursiheimo S., Rintamaeki E., Baena-Gonzalez E., Aro E.-M.
    FEBS Lett. 423:178-182(1998) [PubMed] [Europe PMC] [Abstract]
    Cited for: SUBCELLULAR LOCATION, LACK OF PHOSPHORYLATION.
    Strain: PCC 6803 / Kazusa.

Entry informationi

Entry nameiPSBA1_SYNY3
AccessioniPrimary (citable) accession number: P07826
Secondary accession number(s): P74710
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 1, 1988
Last sequence update: November 1, 1997
Last modified: July 9, 2014
This is version 119 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Miscellaneous

Herbicides such as atrazine, BNT, diuron or ioxynil bind to Q(B) and block electron transport By similarity.
Cyanobacteria usually contain more than 2 copies of the psbA gene.

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Synechocystis PCC 6803
    Synechocystis (strain PCC 6803): entries and gene names

External Data

Dasty 3

Similar proteinsi