ID H0TXL1_9BRAD Unreviewed; 140 AA.
AC H0TXL1;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 24-JAN-2024, entry version 35.
DE RecName: Full=Ribulose bisphosphate carboxylase small subunit {ECO:0000256|HAMAP-Rule:MF_00859};
DE Short=RuBisCO small subunit {ECO:0000256|HAMAP-Rule:MF_00859};
GN Name=cbbS {ECO:0000256|HAMAP-Rule:MF_00859,
GN ECO:0000313|EMBL:CCE11199.1};
GN ORFNames=BRAS3843_660007 {ECO:0000313|EMBL:CCE11199.1};
OS Bradyrhizobium sp. STM 3843.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Nitrobacteraceae; Bradyrhizobium.
OX NCBI_TaxID=551947 {ECO:0000313|EMBL:CCE11199.1, ECO:0000313|Proteomes:UP000002686};
RN [1] {ECO:0000313|Proteomes:UP000002686}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=STM3843 {ECO:0000313|Proteomes:UP000002686};
RX PubMed=24704842; DOI=10.3390/genes3010035;
RA Mornico D., Miche L., Bena G., Nouwen N., Vermeglio A., Vallenet D.,
RA Smith A.A., Giraud E., Medigue C., Moulin L.;
RT "Comparative genomics of aeschynomene symbionts: insights into the
RT ecological lifestyle of nod-independent photosynthetic bradyrhizobia.";
RL Genes (Basel) 3:35-61(2011).
CC -!- FUNCTION: RuBisCO catalyzes two reactions: the carboxylation of D-
CC ribulose 1,5-bisphosphate, the primary event in carbon dioxide
CC fixation, as well as the oxidative fragmentation of the pentose
CC substrate. Both reactions occur simultaneously and in competition at
CC the same active site. Although the small subunit is not catalytic it is
CC essential for maximal activity. {ECO:0000256|HAMAP-Rule:MF_00859}.
CC -!- SUBUNIT: Heterohexadecamer of 8 large and 8 small subunits.
CC {ECO:0000256|ARBA:ARBA00038826, ECO:0000256|HAMAP-Rule:MF_00859}.
CC -!- MISCELLANEOUS: The basic functional RuBisCO is composed of a large
CC chain homodimer in a 'head-to-tail' conformation. In form I RuBisCO
CC this homodimer is arranged in a barrel-like tetramer with the small
CC subunits forming a tetrameric 'cap' on each end of the 'barrel'.
CC {ECO:0000256|HAMAP-Rule:MF_00859}.
CC -!- SIMILARITY: Belongs to the RuBisCO small chain family.
CC {ECO:0000256|HAMAP-Rule:MF_00859}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:CCE11199.1}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CAFK01000314; CCE11199.1; -; Genomic_DNA.
DR RefSeq; WP_008973707.1; NZ_CAFK01000314.1.
DR AlphaFoldDB; H0TXL1; -.
DR OrthoDB; 9788955at2; -.
DR Proteomes; UP000002686; Unassembled WGS sequence.
DR GO; GO:0016984; F:ribulose-bisphosphate carboxylase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019253; P:reductive pentose-phosphate cycle; IEA:UniProtKB-UniRule.
DR CDD; cd03527; RuBisCO_small; 1.
DR Gene3D; 3.30.190.10; Ribulose bisphosphate carboxylase, small subunit; 1.
DR HAMAP; MF_00859; RuBisCO_S_bact; 1.
DR InterPro; IPR024681; RuBisCO_ssu.
DR InterPro; IPR000894; RuBisCO_ssu_dom.
DR InterPro; IPR036385; RuBisCO_ssu_sf.
DR PANTHER; PTHR31262; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL CHAIN 1, CHLOROPLASTIC; 1.
DR PANTHER; PTHR31262:SF23; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL SUBUNIT; 1.
DR Pfam; PF00101; RuBisCO_small; 1.
DR SMART; SM00961; RuBisCO_small; 1.
DR SUPFAM; SSF55239; RuBisCO, small subunit; 1.
PE 3: Inferred from homology;
KW Calvin cycle {ECO:0000256|ARBA:ARBA00022567, ECO:0000256|HAMAP-
KW Rule:MF_00859};
KW Carbon dioxide fixation {ECO:0000256|ARBA:ARBA00023300, ECO:0000256|HAMAP-
KW Rule:MF_00859}; Lyase {ECO:0000313|EMBL:CCE11199.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000002686}.
FT DOMAIN 4..103
FT /note="Ribulose bisphosphate carboxylase small subunit"
FT /evidence="ECO:0000259|SMART:SM00961"
SQ SEQUENCE 140 AA; 16443 MW; B656EE305298C049 CRC64;
MRVTQGCFSF LPDLTDEQIT AQVQYCLDKG WAVNIEFTDD PHPRNTYWEM WGLPMFDLRD
AAGIMRELAD CRKIYGDRYI RISGFDSSHG WESLRISFIV NRPQHEPGFR LDRQETVGRN
LRYATHAYAT ERPEGERYSS
//
