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B0JIS8

- PSBA_MICAN

UniProt

B0JIS8 - PSBA_MICAN

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Protein

Photosystem Q(B) protein

Gene

psbA1

more
Organism
Microcystis aeruginosa (strain NIES-843)
Status
Reviewed - Annotation score: 4 out of 5- Protein inferred from homologyi

Functioni

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

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.UniRule annotation

Sites

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

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

BioCyciMAER449447:GHO8-1024-MONOMER.
MAER449447:GHO8-1040-MONOMER.
MAER449447:GHO8-1053-MONOMER.
MAER449447:GHO8-1082-MONOMER.
MAER449447:GHO8-5862-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem Q(B) proteinUniRule annotation (EC:1.10.3.9UniRule annotation)
Alternative name(s):
32 kDa thylakoid membrane proteinUniRule annotation
Photosystem II protein D1UniRule annotation
Gene namesi
Name:psbA1UniRule annotation
Ordered Locus Names:MAE_10220
AND
Name:psbA2UniRule annotation
Ordered Locus Names:MAE_10380
AND
Name:psbA3UniRule annotation
Ordered Locus Names:MAE_10510
AND
Name:psbA4UniRule annotation
Ordered Locus Names:MAE_10800
AND
Name:psbA5UniRule annotation
Ordered Locus Names:MAE_58140
OrganismiMicrocystis aeruginosa (strain NIES-843)
Taxonomic identifieri449447 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesMicrocystis
ProteomesiUP000001510: Chromosome

Subcellular locationi

Cellular thylakoid membrane UniRule annotation; Multi-pass membrane protein UniRule annotation

GO - Cellular componenti

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

Keywords - Cellular componenti

Membrane, Photosystem II, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 344344Photosystem Q(B) proteinPRO_0000339926Add
BLAST
Propeptidei345 – 36016UniRule annotationPRO_0000339927Add
BLAST

Proteomic databases

PaxDbiB0JIS8.
PRIDEiB0JIS8.

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).By similarity

Protein-protein interaction databases

STRINGi449447.MAE_58140.

Structurei

3D structure databases

ProteinModelPortaliB0JIS8.
SMRiB0JIS8. Positions 10-344.
ModBaseiSearch...
MobiDBiSearch...

Transmembrane

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei36 – 5621HelicalUniRule annotationAdd
BLAST
Transmembranei109 – 12921HelicalUniRule annotationAdd
BLAST
Transmembranei141 – 16424HelicalUniRule annotationAdd
BLAST
Transmembranei192 – 21827HelicalUniRule annotationAdd
BLAST
Transmembranei269 – 28921HelicalUniRule annotationAdd
BLAST

Family & Domainsi

Sequence similaritiesi

Belongs to the reaction center PufL/M/PsbA/D family.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiNOG04871.
HOGENOMiHOG000246913.
KOiK02703.
OMAiCFTIAFI.
OrthoDBiEOG6Q2SGP.

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.

B0JIS8-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MTTTLQQRES ASLWEQFCQW ITSTNNRLYI GWFGVIMIPT LLTATTCFII
60 70 80 90 100
AFIAAPPVDI DGIREPVAGS LLYGNNIISG AVVPSSNAIG LHFYPIWEAA
110 120 130 140 150
SLDEWLYNGG PYQLVIFHFL LGVFCYLGRQ WELSFRLGMR PWICVAYSAP
160 170 180 190 200
VSAATAVFLI YPIGQGSFSD GMPLGISGTF NFMFVFQAEH NILMHPFHML
210 220 230 240 250
GVAGVFGGSL FSAMHGSLVT SSLVRETTEI ESQNYGYKFG QEEETYNIVA
260 270 280 290 300
AHGYFGRLIF QYASFNNSRS LHFFLGAWPV IGIWFTAMGV STMAFNLNGF
310 320 330 340 350
NFNQSILDSQ GRVIGTWADV LNRAGIGMEV MHERNAHNFP LDLASGEQAP
360
VALIAPAING
Length:360
Mass (Da):39,715
Last modified:March 18, 2008 - v1
Checksum:i68BDBFFC518BA80B
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AP009552 Genomic DNA. Translation: BAG00844.1.
AP009552 Genomic DNA. Translation: BAG00860.1.
AP009552 Genomic DNA. Translation: BAG00873.1.
AP009552 Genomic DNA. Translation: BAG00902.1.
AP009552 Genomic DNA. Translation: BAG05636.1.
RefSeqiYP_001656036.1. NC_010296.1.
YP_001656052.1. NC_010296.1.
YP_001656065.1. NC_010296.1.
YP_001656094.1. NC_010296.1.
YP_001660828.1. NC_010296.1.

Genome annotation databases

EnsemblBacteriaiBAG00844; BAG00844; MAE_10220.
BAG00860; BAG00860; MAE_10380.
BAG00873; BAG00873; MAE_10510.
BAG00902; BAG00902; MAE_10800.
BAG05636; BAG05636; MAE_58140.
GeneIDi5861820.
5861836.
5861849.
5861878.
5866658.
KEGGimar:MAE_10220.
mar:MAE_10380.
mar:MAE_10510.
mar:MAE_10800.
mar:MAE_58140.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AP009552 Genomic DNA. Translation: BAG00844.1 .
AP009552 Genomic DNA. Translation: BAG00860.1 .
AP009552 Genomic DNA. Translation: BAG00873.1 .
AP009552 Genomic DNA. Translation: BAG00902.1 .
AP009552 Genomic DNA. Translation: BAG05636.1 .
RefSeqi YP_001656036.1. NC_010296.1.
YP_001656052.1. NC_010296.1.
YP_001656065.1. NC_010296.1.
YP_001656094.1. NC_010296.1.
YP_001660828.1. NC_010296.1.

3D structure databases

ProteinModelPortali B0JIS8.
SMRi B0JIS8. Positions 10-344.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 449447.MAE_58140.

Proteomic databases

PaxDbi B0JIS8.
PRIDEi B0JIS8.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai BAG00844 ; BAG00844 ; MAE_10220 .
BAG00860 ; BAG00860 ; MAE_10380 .
BAG00873 ; BAG00873 ; MAE_10510 .
BAG00902 ; BAG00902 ; MAE_10800 .
BAG05636 ; BAG05636 ; MAE_58140 .
GeneIDi 5861820.
5861836.
5861849.
5861878.
5866658.
KEGGi mar:MAE_10220.
mar:MAE_10380.
mar:MAE_10510.
mar:MAE_10800.
mar:MAE_58140.

Phylogenomic databases

eggNOGi NOG04871.
HOGENOMi HOG000246913.
KOi K02703.
OMAi CFTIAFI.
OrthoDBi EOG6Q2SGP.

Enzyme and pathway databases

BioCyci MAER449447:GHO8-1024-MONOMER.
MAER449447:GHO8-1040-MONOMER.
MAER449447:GHO8-1053-MONOMER.
MAER449447:GHO8-1082-MONOMER.
MAER449447:GHO8-5862-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

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: NIES-843.

Entry informationi

Entry nameiPSBA_MICAN
AccessioniPrimary (citable) accession number: B0JIS8
Entry historyi
Integrated into UniProtKB/Swiss-Prot: June 10, 2008
Last sequence update: March 18, 2008
Last modified: October 29, 2014
This is version 46 of the entry and version 1 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.UniRule annotation
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

External Data

Dasty 3