P11004 (PSBC_SYNE7) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Photosystem II 44 kDa reaction center protein

Alternative name(s):
PSII 43 kDa protein
Protein CP-43
Protein P6

Gene names

Name:	psbC
Ordered Locus Names:	Synpcc7942_0656

Organism

Synechococcus elongatus (strain PCC 7942) (Anacystis nidulans R2) [Complete proteome] [HAMAP]

Taxonomic identifier

1140 [NCBI]

Taxonomic lineage

cellular organisms › Bacteria › Cyanobacteria › Oscillatoriophycideae › Chroococcales › Synechococcus › Synechococcus elongatus

Protein attributes

Sequence length	461 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	The 43 kDa protein (p6) is a component of the core of photosystem II. It is a chlorophyll binding protein.
Subcellular location	Cellular thylakoid membrane; Multi-pass membrane protein.
Sequence similarities	Belongs to the PsbB/PsbC family. PsbC subfamily.

Ontologies

Keywords
Biological process	Photosynthesis
Cellular component	Membrane Photosystem II Thylakoid
Domain	Transmembrane Transmembrane helix
Ligand	Chlorophyll Chromophore
Technical term	Complete proteome
Gene Ontology (GO)
Biological_process	photosynthetic electron transport in photosystem II Inferred from electronic annotation. Source: InterPro protein-chromophore linkage Inferred from electronic annotation. Source: UniProtKB-KW
Cellular_component	integral to membrane Inferred from electronic annotation. Source: UniProtKB-KW light-harvesting complex Inferred from electronic annotation. Source: InterPro photosystem II Inferred from electronic annotation. Source: UniProtKB-KW thylakoid membrane Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular_function	chlorophyll binding Inferred from electronic annotation. Source: UniProtKB-KW electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 461	461	Photosystem II 44 kDa reaction center protein		PRO_0000077531
Regions
	Transmembrane	37 – 59	23	Helical; Potential
	Transmembrane	97 – 119	23	Helical; Potential
	Transmembrane	148 – 170	23	Helical; Potential
	Transmembrane	221 – 238	18	Helical; Potential
	Transmembrane	258 – 280	23	Helical; Potential
	Transmembrane	412 – 431	20	Helical; Potential
Experimental info
	Sequence conflict	249	1	R → G in AAA27359. Ref.1
	Sequence conflict	353 – 354	2	WL → CV in AAA27359. Ref.1
	Sequence conflict	418	1	H → P in AAA27359. Ref.1

Sequences

	Sequence		Length	Mass (Da)
	P11004 [UniParc]. Last modified April 18, 2006. Version 3. Checksum: 50DB128743D5B08E	FASTA	461	50,140
	10 20 30 40 50 60 MVTLSSPSVI AGGRDIDSTG YAWWSGNARL INLSGKLLGA HVAHAGLIVF WAGAMTLFEV 70 80 90 100 110 120 AHFVPEKPMY EQGIILLSHL ATLGWGVGPG GEVVDTFPYF VVGVLHLISS AVLGLGGIYH 130 140 150 160 170 180 ALRGPESLEE YSTFFSQDWK DKNQMTNIIG YHLILLGLGA FLLVFKAMFF GGVYDTWAPG 190 200 210 220 230 240 GGDVRIISNP TLNPAVIFGY LLKSPFGGDG WIVSVDNLED VIGGHIWIGL ICISGGIWHI 250 260 270 280 290 300 LTKPFGWVRR AFIWNGEAYL SYSLGALSLM GFIASTMVWY NNTVYPSEFF GPTAAEASQS 310 320 330 340 350 360 QAFTFLVRDQ RLGANIGSAQ GPTGLGKYLM RSPTGEIIFG GETMRFWDFR GPWLEPLRGP 370 380 390 400 410 420 NGLDLDKLTN DIQPWQARRA AEYMTHAPLG SLNSVGGVAT EINSVNFVSP RAWLATSHFV 430 440 450 460 LAFFFLVGHL WHAGRARAAA AGFEKGIDRA TEPVLAMRDL D

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Nucleotide sequence and transcript analysis of three photosystem II genes from the cyanobacterium Synechococcus sp. PCC7942." Golden S.S., Stearns G.W. Gene 67:85-96(1988) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]	"Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942." US DOE Joint Genome Institute Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., Hammon N., Israni S., Pitluck S., Schmutz J., Larimer F., Land M., Kyrpides N., Lykidis A., Richardson P. Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: PCC 7942.

Cross-references

Sequence databases
EMBL GenBank DDBJ	M20814 Genomic DNA. Translation: AAA27359.1. CP000100 Genomic DNA. Translation: ABB56688.1.
PIR	JT0322.
RefSeq	YP_399675.1. NC_007604.1.
3D structure databases
ProteinModelPortal	P11004.
SMR	P11004. Positions 15-461.
ModBase	Search...
Protein-protein interaction databases
STRING	1140.Synpcc7942_0656.
Protein family/group databases
TCDB	3.E.2.2.1. photosynthetic reaction center (PRC) family.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	ABB56688; ABB56688; Synpcc7942_0656.
GeneID	3775639.
KEGG	syf:Synpcc7942_0656.
PATRIC	23786459. VBISynElo51371_0766.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	NOG05025.
HOGENOM	HOG000111335.
KO	K02705.
ProtClustDB	CLSK892993.
Enzyme and pathway databases
BioCyc	MetaCyc:SYNPCC7942_0656-MONOMER. SELO1140:GJWQ-671-MONOMER.
Family and domain databases
InterPro	IPR000932. PS_antenna-like. IPR005869. PSII_PsbC. [Graphical view]
Pfam	PF00421. PSII. 1 hit. [Graphical view]
TIGRFAMs	TIGR01153. psbC. 1 hit.
ProtoNet	Search...

Entry information

Entry name

PSBC_SYNE7

Accession

Primary (citable) accession number: P11004
Secondary accession number(s): Q31QI1

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 1, 1989
Last sequence update:	April 18, 2006
Last modified:	May 1, 2013
This is version 84 of the entry and version 3 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program