P74810 (PETM_SYNY3) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Cytochrome b6-f complex subunit 7

Alternative name(s):
Cytochrome b6-f complex subunit PetM
Cytochrome b6-f complex subunit VII

Gene names

Name:	petM
Ordered Locus Names:	smr0003

Organism

Synechocystis sp. (strain PCC 6803 / Kazusa) [Reference proteome] [HAMAP]

Taxonomic identifier

1111708 [NCBI]

Taxonomic lineage

cellular organisms › Bacteria › Cyanobacteria › Oscillatoriophycideae › Chroococcales › Synechocystis › Synechocystis sp. PCC 6803

Protein attributes

Sequence length	36 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions By similarity. HAMAP-Rule MF_00396
Subunit structure	The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, PetD), cytochrome f and the Rieske protein, while the 4 small subunits are PetG, PetL, PetM and PetN. The complex functions as a dimer By similarity.
Subcellular location	Cellular thylakoid membrane; Single-pass membrane protein By similarity HAMAP-Rule MF_00396.
Sequence similarities	Belongs to the PetM family.

Ontologies

Keywords
Biological process	Electron transport Photosynthesis Transport
Cellular component	Membrane Thylakoid
Domain	Transmembrane Transmembrane helix
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological_process	electron transport chain Inferred from electronic annotation. Source: UniProtKB-KW photosynthesis Inferred from electronic annotation. Source: UniProtKB-KW
Cellular_component	cytochrome b6f complex Inferred from electronic annotation. Source: InterPro integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW thylakoid membrane Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular_function	electron carrier activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 36	36	Cytochrome b6-f complex subunit 7 HAMAP-Rule MF_00396		PRO_0000218018
Regions
	Transmembrane	9 – 29	21	Helical; Potential

Sequences

	Sequence		Length	Mass (Da)
	P74810 [UniParc]. Last modified February 1, 1997. Version 1. Checksum: EABBFD1AB592A62D	FASTA	36	3,827
	10 20 30 MTAESMLANG AFIMIGLTLL GLAWGFVIIK LQGSEE

References

[1]

"Sequence analysis of the genome of the unicellular cyanobacterium Synechocystis sp. strain PCC6803. I. Sequence features in the 1 Mb region from map positions 64% to 92% of the genome." Kaneko T., Tanaka A., Sato S., Kotani H., Sazuka T., Miyajima N., Sugiura M., Tabata S. DNA Res. 2:153-166(1995) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 27184 / PCC 6803 / N-1.

[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.

Cross-references

Sequence databases
EMBL GenBank DDBJ	BA000022 Genomic DNA. Translation: BAA10763.1.
PIR	S77071.
RefSeq	NP_442692.1. NC_000911.1. YP_005652753.1. NC_017277.1. YP_007452568.1. NC_020286.1.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	1148.smr0003.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	BAA10763; BAA10763; BAA10763.
GeneID	12254947. 14618250. 952166.
KEGG	syn:smr0003. syy:SYNGTS_2800.
PATRIC	23843130. VBISynSp132158_3103.
Phylogenomic databases
HOGENOM	HOG000054482.
KO	K02643.
Family and domain databases
HAMAP	MF_00396. Cytb6_f_PetM.
InterPro	IPR012595. PetM_cyt_b6/f_cplx_su7. [Graphical view]
Pfam	PF08041. PetM. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PETM_SYNY3

Accession

Primary (citable) accession number: P74810

Entry history

Integrated into UniProtKB/Swiss-Prot:	June 1, 2001
Last sequence update:	February 1, 1997
Last modified:	May 1, 2013
This is version 79 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program