ID   C5Y519_SORBI            Unreviewed;       169 AA.
AC   C5Y519;
DT   01-SEP-2009, integrated into UniProtKB/TrEMBL.
DT   01-SEP-2009, sequence version 1.
DT   27-MAR-2024, entry version 85.
DE   RecName: Full=Ribulose bisphosphate carboxylase small subunit, chloroplastic {ECO:0000256|HAMAP-Rule:MF_00860};
DE            Short=RuBisCO small subunit {ECO:0000256|HAMAP-Rule:MF_00860};
GN   Name=RBCS {ECO:0000256|HAMAP-Rule:MF_00860};
GN   ORFNames=SORBI_3005G042000 {ECO:0000313|EMBL:EES09292.1};
OS   Sorghum bicolor (Sorghum) (Sorghum vulgare).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; PACMAD clade;
OC   Panicoideae; Andropogonodae; Andropogoneae; Sorghinae; Sorghum.
OX   NCBI_TaxID=4558 {ECO:0000313|EMBL:EES09292.1, ECO:0000313|Proteomes:UP000000768};
RN   [1] {ECO:0000313|EMBL:EES09292.1, ECO:0000313|Proteomes:UP000000768}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. BTx623 {ECO:0000313|Proteomes:UP000000768};
RX   PubMed=19189423; DOI=10.1038/nature07723;
RA   Paterson A.H., Bowers J.E., Bruggmann R., Dubchak I., Grimwood J.,
RA   Gundlach H., Haberer G., Hellsten U., Mitros T., Poliakov A., Schmutz J.,
RA   Spannagl M., Tang H., Wang X., Wicker T., Bharti A.K., Chapman J.,
RA   Feltus F.A., Gowik U., Grigoriev I.V., Lyons E., Maher C.A., Martis M.,
RA   Narechania A., Otillar R.P., Penning B.W., Salamov A.A., Wang Y., Zhang L.,
RA   Carpita N.C., Freeling M., Gingle A.R., Hash C.T., Keller B., Klein P.,
RA   Kresovich S., McCann M.C., Ming R., Peterson D.G., Mehboob-ur-Rahman,
RA   Ware D., Westhoff P., Mayer K.F., Messing J., Rokhsar D.S.;
RT   "The Sorghum bicolor genome and the diversification of grasses.";
RL   Nature 457:551-556(2009).
RN   [2] {ECO:0000313|Proteomes:UP000000768}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. BTx623 {ECO:0000313|Proteomes:UP000000768};
RX   PubMed=29161754; DOI=10.1111/tpj.13781;
RA   McCormick R.F., Truong S.K., Sreedasyam A., Jenkins J., Shu S., Sims D.,
RA   Kennedy M., Amirebrahimi M., Weers B.D., McKinley B., Mattison A.,
RA   Morishige D.T., Grimwood J., Schmutz J., Mullet J.E.;
RT   "The Sorghum bicolor reference genome: improved assembly, gene annotations,
RT   a transcriptome atlas, and signatures of genome organization.";
RL   Plant J. 93:338-354(2018).
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_00860,
CC       ECO:0000256|RuleBase:RU003627}.
CC   -!- SUBUNIT: Heterohexadecamer of 8 large and 8 small subunits.
CC       {ECO:0000256|HAMAP-Rule:MF_00860, ECO:0000256|RuleBase:RU003627}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast {ECO:0000256|HAMAP-
CC       Rule:MF_00860}.
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_00860}.
CC   -!- SIMILARITY: Belongs to the RuBisCO small chain family.
CC       {ECO:0000256|HAMAP-Rule:MF_00860, ECO:0000256|RuleBase:RU003627}.
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DR   EMBL; CM000764; EES09292.1; -; Genomic_DNA.
DR   RefSeq; XP_002450304.1; XM_002450259.1.
DR   AlphaFoldDB; C5Y519; -.
DR   STRING; 4558.C5Y519; -.
DR   EnsemblPlants; EES09292; EES09292; SORBI_3005G042000.
DR   GeneID; 8070647; -.
DR   Gramene; EES09292; EES09292; SORBI_3005G042000.
DR   KEGG; sbi:8070647; -.
DR   eggNOG; ENOG502QT0M; Eukaryota.
DR   HOGENOM; CLU_098114_1_0_1; -.
DR   InParanoid; C5Y519; -.
DR   OMA; IRNNWIP; -.
DR   OrthoDB; 5482775at2759; -.
DR   Proteomes; UP000000768; Chromosome 5.
DR   ExpressionAtlas; C5Y519; baseline and differential.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0016984; F:ribulose-bisphosphate carboxylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009853; P:photorespiration; 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; IPR024680; RuBisCO_ssu_N.
DR   InterPro; IPR036385; RuBisCO_ssu_sf.
DR   PANTHER; PTHR31262; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL CHAIN 1, CHLOROPLASTIC; 1.
DR   PANTHER; PTHR31262:SF10; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL SUBUNIT, CHLOROPLASTIC 2; 1.
DR   Pfam; PF12338; RbcS; 1.
DR   Pfam; PF00101; RuBisCO_small; 1.
DR   PRINTS; PR00152; RUBISCOSMALL.
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_00860};
KW   Carbon dioxide fixation {ECO:0000256|ARBA:ARBA00023300, ECO:0000256|HAMAP-
KW   Rule:MF_00860}; Chloroplast {ECO:0000256|HAMAP-Rule:MF_00860};
KW   Photorespiration {ECO:0000256|ARBA:ARBA00023238, ECO:0000256|HAMAP-
KW   Rule:MF_00860};
KW   Photosynthesis {ECO:0000256|ARBA:ARBA00022531, ECO:0000256|HAMAP-
KW   Rule:MF_00860};
KW   Plastid {ECO:0000256|HAMAP-Rule:MF_00860, ECO:0000256|RuleBase:RU003627};
KW   Reference proteome {ECO:0000313|Proteomes:UP000000768};
KW   Transit peptide {ECO:0000256|ARBA:ARBA00022946}.
FT   DOMAIN          57..165
FT                   /note="Ribulose bisphosphate carboxylase small subunit"
FT                   /evidence="ECO:0000259|SMART:SM00961"
SQ   SEQUENCE   169 AA;  19059 MW;  0DCE3CBA88F012BC CRC64;
     MAPTVMASSA TAVAPFQGLK STATLPVARR STTSLAKVSN GGRIRCMQVW PAYGNKKFET
     LSYLPPLTEE QLLKQVDYLL RNNWVPCLEF SKEGFVYREN STSPCYYDGR YWTMWKLPMF
     GCTDASQVYK ELQEAIASYP DAYVRILGFD NIKQTQCVSF IAYKPAGSE
//