P54206 (RBS_SYNY3) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Ribulose bisphosphate carboxylase small chain
Short name=RuBisCO small subunit
EC=4.1.1.39

Gene names

Name:	cbbS
Synonyms:	rbcS
Ordered Locus Names:	slr0012

Organism

Synechocystis sp. (strain PCC 6803 / Kazusa)

Taxonomic identifier

1111708 [NCBI]

Taxonomic lineage

Bacteria › Cyanobacteria › Chroococcales › Synechocystis

Protein attributes

Sequence length	113 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	RuBisCO catalyzes two reactions: the carboxylation of D-ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate. Both reactions occur simultaneously and in competition at the same active site By similarity.
Catalytic activity	2 3-phospho-D-glycerate + 2 H+ = D-ribulose 1,5-bisphosphate + CO2 + H2O. 3-phospho-D-glycerate + 2-phosphoglycolate = D-ribulose 1,5-bisphosphate + O2.
Subunit structure	8 large chains + 8 small chains.
Sequence similarities	Belongs to the RuBisCO small chain family.

Ontologies

Keywords
Biological process	Calvin cycle Carbon dioxide fixation Photosynthesis
Molecular function	Lyase Monooxygenase Oxidoreductase
Technical term	Complete proteome Reference proteome
Gene Ontology (GO)
Biological process	reductive pentose-phosphate cycle Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	monooxygenase activity Inferred from electronic annotation. Source: UniProtKB-KW ribulose-bisphosphate carboxylase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 113	113	Ribulose bisphosphate carboxylase small chain		PRO_0000198627

Sequences

	Sequence		Length	Mass (Da)
	P54206 [UniParc]. Last modified October 1, 1996. Version 1. Checksum: 20C762A777F4E623	FASTA	113	13,239
	10 20 30 40 50 60 MKTLPKERRY ETLSYLPPLT DQQIAKQVEF LLDQGFIPGV EFEEDPQPET HFWTMWKLPF 70 80 90 100 110 FGGATANEVL AEVRECRSEN PNCYIRVIGF DNIKQCQTVS FIVHKPNQNQ GRY

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Construction of a Synechocystis PCC6803 mutant suitable for the study of variant hexadecameric ribulose bisphosphate carboxylase/oxygenase enzymes." Amichay D., Levitz R., Gurevitz M. Plant Mol. Biol. 23:465-476(1993) [PubMed: 8219082] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[2]	"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: 8590279] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: ATCC 27184 / PCC 6803 / N-1.
[3]	"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]. Strain: ATCC 27184 / PCC 6803 / N-1.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	X65960 Genomic DNA. Translation: CAA46774.1. BA000022 Genomic DNA. Translation: BAA10192.1.
PIR	S39562.
RefSeq	NP_442122.1. NC_000911.1.
3D structure databases
ProteinModelPortal	P54206.
SMR	P54206. Positions 1-108.
ModBase	Search...
Protein-protein interaction databases
IntAct	P54206. 17 interactions.
STRING	P54206.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	952633.
GenomeReviews	Gene locus slr0012 in contig BA000022_GR.
KEGG	syn:slr0012.
NMPDR	fig|1148.1.peg.2223.
PATRIC	23841846. VBISynSp132158_2467.
Phylogenomic databases
eggNOG	COG4451.
HOGENOM	HBG608223.
OMA	SFIVHKP.
PhylomeDB	P54206.
ProtClustDB	CLSK893428.
Enzyme and pathway databases
BioCyc	MetaCyc:MONOMER-751. SSP1148:SLR0012-MONOMER.
Family and domain databases
InterPro	IPR000894. RuBisCO_sc_dom. [Graphical view]
Gene3D	G3DSA:3.30.190.10. RuBisCO_small. 1 hit.
KO	K01602.
Pfam	PF00101. RuBisCO_small. 1 hit. [Graphical view]
SMART	SM00961. RuBisCO_small. 1 hit. [Graphical view]
SUPFAM	SSF55239. RuBisCO_small. 1 hit.
ProtoNet	Search...

Entry information

Entry name

RBS_SYNY3

Accession

Primary (citable) accession number: P54206

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1996
Last sequence update:	October 1, 1996
Last modified:	January 25, 2012
This is version 74 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program