Q01950 (PYC1_SYNY3) Reviewed, UniProtKB/Swiss-Prot

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 / 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	67 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

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 Reference proteome
Gene Ontology (GO)
Biological_process	photosynthesis Inferred from electronic annotation. Source: UniProtKB-KW
Cellular_component	phycobilisome Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

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 [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] [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.

Cross-references

Sequence databases
EMBL GenBank DDBJ	M77135 Genomic DNA. Translation: AAA27278.1. BA000022 Genomic DNA. Translation: BAA17876.1.
RefSeq	NP_441196.1. NC_000911.1. YP_005651253.1. NC_017277.1. YP_007451078.1. NC_020286.1.
3D structure databases
ProteinModelPortal	Q01950.
SMR	Q01950. Positions 2-67.
ModBase	Search...
Protein-protein interaction databases
IntAct	Q01950. 1 interaction.
STRING	1148.ssr3383.
Proteomic databases
PaxDb	Q01950.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
EnsemblBacteria	BAA17876; BAA17876; BAA17876.
GeneID	12255661. 14616734. 954532.
KEGG	syn:ssr3383. syy:SYNGTS_1300.
PATRIC	23839715. VBISynSp132158_1419.
Phylogenomic databases
eggNOG	NOG14273.
HOGENOM	HOG000246920.
KO	K02094.
OMA	QNTFFTK.
ProtClustDB	CLSK893029.
Family and domain databases
InterPro	IPR011134. Allophyco_linker. IPR008213. CpcD-like_dom. IPR011064. MscS_channel_TM-1. [Graphical view]
Pfam	PF01383. CpcD. 1 hit. [Graphical view]
PIRSF	PIRSF000083. Allophyco_linker. 1 hit.
SMART	SM01094. CpcD. 1 hit. [Graphical view]
SUPFAM	SSF54580. Allophytocyanin. 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:	May 1, 2013
This is version 78 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program