ID Q40892_PETHY Unreviewed; 68 AA.
AC Q40892;
DT 01-NOV-1996, integrated into UniProtKB/TrEMBL.
DT 01-NOV-1996, sequence version 1.
DT 27-MAR-2024, entry version 89.
DE RecName: Full=Ribulose bisphosphate carboxylase small subunit {ECO:0000256|RuleBase:RU003627};
DE Short=RuBisCO small subunit {ECO:0000256|RuleBase:RU003627};
DE Flags: Fragment;
OS Petunia hybrida (Petunia).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; lamiids; Solanales; Solanaceae; Petunioideae; Petunia.
OX NCBI_TaxID=4102 {ECO:0000313|EMBL:AAA33717.1};
RN [1] {ECO:0000313|EMBL:AAA33717.1}
RP NUCLEOTIDE SEQUENCE.
RX PubMed=6688128; DOI=10.1093/nar/11.12.4177;
RA Dunsmuir P., Smith S., Bedbrook J.;
RT "A number of different nuclear genes for the small subunit of RuBPCase are
RT transcribed in petunia.";
RL Nucleic Acids Res. 11:4177-4183(1983).
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|RuleBase:RU003627}.
CC -!- SUBUNIT: Heterohexadecamer of 8 large and 8 small subunits.
CC {ECO:0000256|RuleBase:RU003627}.
CC -!- SIMILARITY: Belongs to the RuBisCO small chain family.
CC {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; M29642; AAA33717.1; -; mRNA.
DR AlphaFoldDB; Q40892; -.
DR GO; GO:0009536; C:plastid; IEA:UniProtKB-KW.
DR GO; GO:0009853; P:photorespiration; IEA:UniProtKB-UniRule.
DR GO; GO:0019253; P:reductive pentose-phosphate cycle; IEA:UniProtKB-KW.
DR Gene3D; 3.30.190.10; Ribulose bisphosphate carboxylase, small subunit; 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:SF10; RIBULOSE BISPHOSPHATE CARBOXYLASE SMALL SUBUNIT, CHLOROPLASTIC 2; 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 2: Evidence at transcript level;
KW Calvin cycle {ECO:0000256|ARBA:ARBA00022567};
KW Carbon dioxide fixation {ECO:0000256|ARBA:ARBA00023300,
KW ECO:0000256|RuleBase:RU003627};
KW Photorespiration {ECO:0000256|ARBA:ARBA00023238,
KW ECO:0000256|RuleBase:RU003627};
KW Photosynthesis {ECO:0000256|ARBA:ARBA00022531,
KW ECO:0000256|RuleBase:RU003627}; Plastid {ECO:0000256|RuleBase:RU003627}.
FT DOMAIN 1..65
FT /note="Ribulose bisphosphate carboxylase small subunit"
FT /evidence="ECO:0000259|SMART:SM00961"
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:AAA33717.1"
SQ SEQUENCE 68 AA; 7825 MW; 020B97EB3E139506 CRC64;
HASPGYYDGR YWTMWKLPMF GCTDATQVLG ELQEAKKAYP NAWISIIGFD NVRQVQCISF
IAYKPQGY
//
