ID A0A0A0ECJ4_9RHOB Unreviewed; 128 AA.
AC A0A0A0ECJ4;
DT 07-JAN-2015, integrated into UniProtKB/TrEMBL.
DT 07-JAN-2015, sequence version 1.
DT 24-JAN-2024, entry version 24.
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 ORFNames=ATO9_14410 {ECO:0000313|EMBL:KGM48164.1};
OS Pseudooceanicola atlanticus.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae; Pseudooceanicola.
OX NCBI_TaxID=1461694 {ECO:0000313|EMBL:KGM48164.1, ECO:0000313|Proteomes:UP000030004};
RN [1] {ECO:0000313|EMBL:KGM48164.1, ECO:0000313|Proteomes:UP000030004}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=22II-s11g {ECO:0000313|EMBL:KGM48164.1,
RC ECO:0000313|Proteomes:UP000030004};
RX PubMed=25663028; DOI=10.1007/s10482-015-0398-2;
RA Lai Q., Li G., Liu X., Du Y., Sun F., Shao Z.;
RT "Pseudooceanicola atlanticus gen. nov. sp. nov., isolated from surface
RT seawater of the Atlantic Ocean and reclassification of Oceanicola
RT batsensis, Oceanicola marinus, Oceanicola nitratireducens, Oceanicola
RT nanhaiensis, Oceanicola antarcticus and Oceanicola flagellatus, as
RT Pseudooceanicola batsensis comb. nov., Pseudooceanicola marinus comb. nov.,
RT Pseudooceanicola nitratireducens comb. nov., Pseudooceanicola nanhaiensis
RT comb. nov., Pseudooceanicola antarcticus comb. nov., and Pseudooceanicola
RT flagellatus comb. nov.";
RL Antonie Van Leeuwenhoek 107:1065-1074(2015).
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:KGM48164.1}.
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DR EMBL; AQQX01000005; KGM48164.1; -; Genomic_DNA.
DR RefSeq; WP_043750279.1; NZ_CP051248.1.
DR AlphaFoldDB; A0A0A0ECJ4; -.
DR STRING; 1461694.ATO9_14410; -.
DR eggNOG; COG4451; Bacteria.
DR OrthoDB; 9788955at2; -.
DR Proteomes; UP000030004; 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}; Reference proteome {ECO:0000313|Proteomes:UP000030004}.
FT DOMAIN 4..103
FT /note="Ribulose bisphosphate carboxylase small subunit"
FT /evidence="ECO:0000259|SMART:SM00961"
SQ SEQUENCE 128 AA; 14973 MW; CEF0BED1C7642929 CRC64;
MRITQGCFSF LPDLTDDQIT AQVEYMLSRD WAVGIEFTDD PHPRNTYWEM FGHPMFDLKD
AKGVMMELEE CRKAHGESYI RLVGFDATRG FETVMMSFIV NRPPEEPRLH MQRTDVAGRS
QTYAWDAR
//
