RBS1_PETHY
ID RBS1_PETHY Reviewed; 180 AA.
AC P04714;
DT 13-AUG-1987, integrated into UniProtKB/Swiss-Prot.
DT 13-AUG-1987, sequence version 1.
DT 25-MAY-2022, entry version 102.
DE RecName: Full=Ribulose bisphosphate carboxylase small subunit, chloroplastic 1 {ECO:0000255|HAMAP-Rule:MF_00860};
DE Short=RuBisCO small subunit 1 {ECO:0000255|HAMAP-Rule:MF_00860};
DE AltName: Full=Ribulose bisphosphate carboxylase small chain SSU8, chloroplastic;
DE Short=RuBisCO small subunit SSU8;
DE Flags: Precursor;
GN Name=RBCS1 {ECO:0000255|HAMAP-Rule:MF_00860}; Synonyms=RBCS;
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;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=cv. Mitchell;
RX PubMed=3010233; DOI=10.1093/nar/14.8.3325;
RA Tumer N.E., Clark W.G., Tabor G.J., Hironaka C.M., Fraley R.T., Shah D.M.;
RT "The genes encoding the small subunit of ribulose-1,5-bisphosphate
RT carboxylase are expressed differentially in petunia leaves.";
RL Nucleic Acids Res. 14:3325-3342(1986).
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:0000255|HAMAP-Rule:MF_00860}.
CC -!- SUBUNIT: Heterohexadecamer of 8 large and 8 small subunits.
CC {ECO:0000255|HAMAP-Rule:MF_00860}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast {ECO:0000255|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:0000255|HAMAP-Rule:MF_00860}.
CC -!- SIMILARITY: Belongs to the RuBisCO small chain family.
CC {ECO:0000255|HAMAP-Rule:MF_00860}.
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DR EMBL; X03820; CAA27444.1; -; Genomic_DNA.
DR AlphaFoldDB; P04714; -.
DR SMR; P04714; -.
DR PRIDE; P04714; -.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR GO; GO:0009853; P:photorespiration; IEA:UniProtKB-KW.
DR GO; GO:0019253; P:reductive pentose-phosphate cycle; IEA:UniProtKB-KW.
DR CDD; cd03527; RuBisCO_small; 1.
DR Gene3D; 3.30.190.10; -; 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; PTHR31262; 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; SSF55239; 1.
PE 3: Inferred from homology;
KW Calvin cycle; Carbon dioxide fixation; Chloroplast; Photorespiration;
KW Photosynthesis; Plastid; Transit peptide.
FT TRANSIT 1..56
FT /note="Chloroplast"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00860"
FT CHAIN 57..180
FT /note="Ribulose bisphosphate carboxylase small subunit,
FT chloroplastic 1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00860"
FT /id="PRO_0000031543"
SQ SEQUENCE 180 AA; 20370 MW; 456E229D43573380 CRC64;
MASSVISSAA VATRTNVAQA SMVAPFNGLK SAVSFPVSSK QNLDITSIAS NGGRVQCMQV
WPPYGKKKYE TLSYLPDLTD EQLLKEIEYL LNKGWVPCLE FETEHGFVYR EYHASPRYYD
GRYWTMWKLP MFGCTDATQV LGELQEAKKA YPNAWIRIIG FDNVRQVQCI SFIAYKPPGF
