Reviewed, UniProtKB/Swiss-Prot Q01950 (PYC1_SYNY3)

Names and origin

Protein names

Recommended name:
    Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core
Alternative name(s):
    LC 7.8

Gene names

Name:	apcC
Ordered Locus Names:	ssr3383

Organism

Synechocystis sp. (strain PCC 6803) [Complete proteome] [HAMAP]

Taxonomic identifier

1148 [NCBI]

Taxonomic lineage

Bacteria › Cyanobacteria › Chroococcales › Synechocystis

Protein attributes

Sequence length	67 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at protein level.

General annotation (Comments)

Function	Rod linker protein, associated with allophycocyanin. Linker polypeptides determine the state of aggregation and the location of the disk-shaped phycobiliprotein units within the phycobilisome and modulate their spectroscopic properties in order to mediate a directed and optimal energy transfer By similarity.
Subcellular location	Cellular thylakoid membrane; Peripheral membrane protein; Cytoplasmic side By similarity. Note: This protein occurs in the rod, it is associated with allophycocyanin By similarity.
Sequence similarities	Belongs to the phycobilisome linker protein family. Contains 1 cpcD-like domain.

Ontologies

Keywords
Biological process	Photosynthesis
Cellular component	Membrane Phycobilisome Thylakoid
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	photosynthesis Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	phycobilisome Inferred from electronic annotation. Source: UniProtKB-KW thylakoid membrane Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	protein binding Inferred from physical interaction. Source: IntAct
Complete GO annotation...

Binary interactions

With	Entry	#Exp.	IntAct	Notes
trxA	P52231	1	EBI-862779,EBI-862916

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 67	67	Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core		PRO_0000199240
Regions
	Domain	1 – 56	56	CpcD-like

Sequences

	Sequence		Length	Mass (Da)
	Q01950-1 [UniParc]. Last modified April 1, 1993. Version 1. Checksum: 39BE0BB8B6457F79	FASTA	67	7,706
	10 20 30 40 50 60 MRMFRITACV PSQTRIRTQR ELQNTYFTKL VPYDNSFREQ QRIMKMGGKI VKVELATGRP GTNAGLA

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Excitation energy transfer from phycocyanin to chlorophyll in an apcA-defective mutant of Synechocystis sp. PCC 6803." Su X., Goodman P., Bogorad L. J. Biol. Chem. 267:22944-22950(1992) [PubMed: 1429645] [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: 8905231] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	M77135 Genomic DNA. Translation: AAA27278.1. BA000022 Genomic DNA. Translation: BAA17876.1.
RefSeq	NP_441196.1.
3D structure databases
HSSP	HSSP built from PDB template 1B33 based on UniProtKB P20116.
SMR	Q01950. Positions 2-67.
ModBase	Search...
Protein-protein interaction databases
IntAct	Q01950. 1 interaction.
Genome annotation databases
GeneID	954532.
GenomeReviews	Gene locus ssr3383 in contig BA000022_GR.
KEGG	syn:ssr3383.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q01950.
Enzyme and pathway databases
BioCyc	SSP1148:SSR3383-MON.
Family and domain databases
InterPro	IPR011134. Allophyco_linker. IPR008213. Phycobilisome_lnk_CpcD-like. [Graphical view]
Pfam	PF01383. CpcD. 1 hit. [Graphical view]
PIRSF	PIRSF000083. Allophyco_linker. 1 hit.
PROSITE	PS51441. CPCD_LIKE. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

PYC1_SYNY3

Accession

Primary (citable) accession number: Q01950

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 1, 1993
Last sequence update:	April 1, 1993
Last modified:	June 16, 2009
This is version 51 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)