ID   F7YAX9_MESOW            Unreviewed;       129 AA.
AC   F7YAX9;
DT   21-SEP-2011, integrated into UniProtKB/TrEMBL.
DT   21-SEP-2011, sequence version 1.
DT   24-JAN-2024, entry version 44.
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=Mesop_5542 {ECO:0000313|EMBL:AEH89955.1};
OS   Mesorhizobium opportunistum (strain LMG 24607 / HAMBI 3007 / WSM2075).
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC   Phyllobacteriaceae; Mesorhizobium.
OX   NCBI_TaxID=536019 {ECO:0000313|EMBL:AEH89955.1, ECO:0000313|Proteomes:UP000001623};
RN   [1] {ECO:0000313|EMBL:AEH89955.1, ECO:0000313|Proteomes:UP000001623}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LMG 24607 / HAMBI 3007 / WSM2075
RC   {ECO:0000313|Proteomes:UP000001623};
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Cheng J.-F., Bruce D., Goodwin L.,
RA   Pitluck S., Chertkov O., Misra M., Detter J.C., Han C., Tapia R., Land M.,
RA   Hauser L., Kyrpides N., Ovchinnikova G., Mavrommatis K.M., Tiwari R.P.,
RA   Howieson J.G., O'Hara G.W., Nandasena K.G., Woyke T.;
RT   "Complete sequence of Mesorhizobium opportunistum WSM2075.";
RL   Submitted (OCT-2010) to the EMBL/GenBank/DDBJ databases.
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   ---------------------------------------------------------------------------
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; CP002279; AEH89955.1; -; Genomic_DNA.
DR   RefSeq; WP_013896592.1; NC_015675.1.
DR   AlphaFoldDB; F7YAX9; -.
DR   STRING; 536019.Mesop_5542; -.
DR   KEGG; mop:Mesop_5542; -.
DR   eggNOG; COG4451; Bacteria.
DR   HOGENOM; CLU_098114_2_0_5; -.
DR   Proteomes; UP000001623; Chromosome.
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:AEH89955.1}.
FT   DOMAIN          4..103
FT                   /note="Ribulose bisphosphate carboxylase small subunit"
FT                   /evidence="ECO:0000259|SMART:SM00961"
SQ   SEQUENCE   129 AA;  15010 MW;  16C2264CE994B5B7 CRC64;
     MRITQGTFSF LPDLSDEQIS AQVEYCLRKE WSIGVEYTDD PHPRNIFWEM WGNPMFDLKD
     AAGVMMEVRA CRVAQPDSYI RLNAFDSSRG FETVMLSFIV NRPKVEPKFV LTRTETDSRV
     QRYSMKAAL
//