ID   A9T9D5_PHYPA            Unreviewed;       182 AA.
AC   A9T9D5;
DT   05-FEB-2008, integrated into UniProtKB/TrEMBL.
DT   05-FEB-2008, sequence version 1.
DT   27-MAR-2024, entry version 99.
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=PHYPA_005778 {ECO:0000313|EMBL:PNR54885.1};
OS   Physcomitrium patens (Spreading-leaved earth moss) (Physcomitrella patens).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Bryophyta;
OC   Bryophytina; Bryopsida; Funariidae; Funariales; Funariaceae; Physcomitrium.
OX   NCBI_TaxID=3218 {ECO:0000313|EMBL:PNR54885.1};
RN   [1] {ECO:0000313|EMBL:PNR54885.1, ECO:0000313|Proteomes:UP000006727}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Gransden 2004 {ECO:0000313|EnsemblPlants:Pp3c4_4820V3.1,
RC   ECO:0000313|Proteomes:UP000006727};
RX   PubMed=18079367; DOI=10.1126/science.1150646;
RA   Rensing S.A., Lang D., Zimmer A.D., Terry A., Salamov A., Shapiro H.,
RA   Nishiyama T., Perroud P.-F., Lindquist E.A., Kamisugi Y., Tanahashi T.,
RA   Sakakibara K., Fujita T., Oishi K., Shin-I T., Kuroki Y., Toyoda A.,
RA   Suzuki Y., Hashimoto S.-I., Yamaguchi K., Sugano S., Kohara Y.,
RA   Fujiyama A., Anterola A., Aoki S., Ashton N., Barbazuk W.B., Barker E.,
RA   Bennetzen J.L., Blankenship R., Cho S.H., Dutcher S.K., Estelle M.,
RA   Fawcett J.A., Gundlach H., Hanada K., Heyl A., Hicks K.A., Hughes J.,
RA   Lohr M., Mayer K., Melkozernov A., Murata T., Nelson D.R., Pils B.,
RA   Prigge M., Reiss B., Renner T., Rombauts S., Rushton P.J., Sanderfoot A.,
RA   Schween G., Shiu S.-H., Stueber K., Theodoulou F.L., Tu H., Van de Peer Y.,
RA   Verrier P.J., Waters E., Wood A., Yang L., Cove D., Cuming A.C., Hasebe M.,
RA   Lucas S., Mishler B.D., Reski R., Grigoriev I.V., Quatrano R.S.,
RA   Boore J.L.;
RT   "The Physcomitrella genome reveals evolutionary insights into the conquest
RT   of land by plants.";
RL   Science 319:64-69(2008).
RN   [2] {ECO:0000313|EMBL:PNR54885.1, ECO:0000313|Proteomes:UP000006727}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Gransden 2004 {ECO:0000313|EnsemblPlants:Pp3c4_4820V3.1,
RC   ECO:0000313|Proteomes:UP000006727};
RX   PubMed=29237241; DOI=10.1111/tpj.13801;
RA   Lang D., Ullrich K.K., Murat F., Fuchs J., Jenkins J., Haas F.B.,
RA   Piednoel M., Gundlach H., Van Bel M., Meyberg R., Vives C., Morata J.,
RA   Symeonidi A., Hiss M., Muchero W., Kamisugi Y., Saleh O., Blanc G.,
RA   Decker E.L., van Gessel N., Grimwood J., Hayes R.D., Graham S.W.,
RA   Gunter L.E., McDaniel S.F., Hoernstein S.N.W., Larsson A., Li F.W.,
RA   Perroud P.F., Phillips J., Ranjan P., Rokshar D.S., Rothfels C.J.,
RA   Schneider L., Shu S., Stevenson D.W., Thummler F., Tillich M.,
RA   Villarreal Aguilar J.C., Widiez T., Wong G.K., Wymore A., Zhang Y.,
RA   Zimmer A.D., Quatrano R.S., Mayer K.F.X., Goodstein D., Casacuberta J.M.,
RA   Vandepoele K., Reski R., Cuming A.C., Tuskan G.A., Maumus F., Salse J.,
RA   Schmutz J., Rensing S.A.;
RT   "The Physcomitrella patens chromosome-scale assembly reveals moss genome
RT   structure and evolution.";
RL   Plant J. 93:515-533(2018).
RN   [3] {ECO:0000313|EnsemblPlants:Pp3c4_4820V3.1}
RP   IDENTIFICATION.
RG   EnsemblPlants;
RL   Submitted (DEC-2020) to UniProtKB.
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}.
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; ABEU02000004; PNR54885.1; -; Genomic_DNA.
DR   RefSeq; XP_001775244.1; XM_001775192.1.
DR   AlphaFoldDB; A9T9D5; -.
DR   STRING; 3218.A9T9D5; -.
DR   PaxDb; 3218-PP1S188_39V6-1; -.
DR   EnsemblPlants; Pp3c4_4820V3.1; Pp3c4_4820V3.1; Pp3c4_4820.
DR   EnsemblPlants; Pp3c4_4820V3.2; Pp3c4_4820V3.2; Pp3c4_4820.
DR   Gramene; Pp3c4_4820V3.1; Pp3c4_4820V3.1; Pp3c4_4820.
DR   Gramene; Pp3c4_4820V3.2; Pp3c4_4820V3.2; Pp3c4_4820.
DR   eggNOG; ENOG502QT0M; Eukaryota.
DR   HOGENOM; CLU_098114_1_0_1; -.
DR   InParanoid; A9T9D5; -.
DR   OMA; VIHISYT; -.
DR   OrthoDB; 5482775at2759; -.
DR   Proteomes; UP000006727; Chromosome 4.
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; IPR036385; RuBisCO_ssu_sf.
DR   PANTHER; PTHR31262; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL CHAIN 1, CHLOROPLASTIC; 1.
DR   PANTHER; PTHR31262:SF0; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL SUBUNIT DOMAIN-CONTAINING PROTEIN; 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:UP000006727}.
FT   DOMAIN          72..181
FT                   /note="Ribulose bisphosphate carboxylase small subunit"
FT                   /evidence="ECO:0000259|SMART:SM00961"
SQ   SEQUENCE   182 AA;  19834 MW;  A1E89A3E06A40265 CRC64;
     MASITAASTM VAPAAFTAAS SAASTSESAS VKAFSGLKSN TLFASKAQSL SSVQNGSRVQ
     CMQVWNPIGM TKFETFSYLP PLSDDSIAKQ VEYMIQQGLI PCLEFDVNAD GVSRTNNSSP
     GYYDGRYWTM WKLPMFGCQD SSQVLREIEE CKKTFPGCFV RILGFDNVKQ VQICGFLVAR
     PN
//