ID   B2JX49_PARP8            Unreviewed;       153 AA.
AC   B2JX49;
DT   10-JUN-2008, integrated into UniProtKB/TrEMBL.
DT   10-JUN-2008, sequence version 1.
DT   27-MAR-2024, entry version 68.
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   OrderedLocusNames=Bphy_6496 {ECO:0000313|EMBL:ACC75526.1};
OS   Paraburkholderia phymatum (strain DSM 17167 / CIP 108236 / LMG 21445 /
OS   STM815) (Burkholderia phymatum).
OG   Plasmid pBPHY01 {ECO:0000313|EMBL:ACC75526.1,
OG   ECO:0000313|Proteomes:UP000001192}.
OC   Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC   Burkholderiaceae; Paraburkholderia.
OX   NCBI_TaxID=391038 {ECO:0000313|EMBL:ACC75526.1, ECO:0000313|Proteomes:UP000001192};
RN   [1] {ECO:0000313|Proteomes:UP000001192}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 17167 / CIP 108236 / LMG 21445 / STM815
RC   {ECO:0000313|Proteomes:UP000001192};
RC   PLASMID=Plasmid pBPHY01 {ECO:0000313|Proteomes:UP000001192};
RX   PubMed=25197461; DOI=10.4056/sigs.4861021;
RA   Moulin L., Klonowska A., Caroline B., Booth K., Vriezen J.A., Melkonian R.,
RA   James E.K., Young J.P., Bena G., Hauser L., Land M., Kyrpides N., Bruce D.,
RA   Chain P., Copeland A., Pitluck S., Woyke T., Lizotte-Waniewski M.,
RA   Bristow J., Riley M.;
RT   "Complete genome sequence of Burkholderia phymatum STM815(T), a broad host
RT   range and efficient nitrogen-fixing symbiont of Mimosa species.";
RL   Stand. Genomic Sci. 9:763-774(2014).
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}.
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DR   EMBL; CP001045; ACC75526.1; -; Genomic_DNA.
DR   RefSeq; WP_012405685.1; NZ_CADFGH010000013.1.
DR   AlphaFoldDB; B2JX49; -.
DR   KEGG; bph:Bphy_6496; -.
DR   HOGENOM; CLU_098114_2_0_4; -.
DR   OrthoDB; 9788955at2; -.
DR   Proteomes; UP000001192; Plasmid pBPHY01.
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:ACC75526.1};
KW   Plasmid {ECO:0000313|EMBL:ACC75526.1};
KW   Reference proteome {ECO:0000313|Proteomes:UP000001192}.
FT   DOMAIN          4..103
FT                   /note="Ribulose bisphosphate carboxylase small subunit"
FT                   /evidence="ECO:0000259|SMART:SM00961"
SQ   SEQUENCE   153 AA;  17578 MW;  9AB4D325E56C3E67 CRC64;
     MRITQGTFSF LPELTDDEIG LQIQYALDQG WACSVEFTDD PHPRNTYWEM WGLPMFDLRD
     AAGVMMEVAR CREAYPQHYV KVNAFDSVRG FETMRLSFIV NRPDVEPKLV LGRQDDRSRV
     QRYSLTTVHA APRQAAVKGK SCVEQNTNRE TAS
//