RBS_GOSHI
ID RBS_GOSHI Reviewed; 182 AA.
AC P31333;
DT 01-JUL-1993, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1996, sequence version 2.
DT 25-MAY-2022, entry version 103.
DE RecName: Full=Ribulose bisphosphate carboxylase small subunit, chloroplastic {ECO:0000255|HAMAP-Rule:MF_00860};
DE Short=RuBisCO small subunit {ECO:0000255|HAMAP-Rule:MF_00860};
DE Flags: Precursor;
GN Name=RBCS {ECO:0000255|HAMAP-Rule:MF_00860};
OS Gossypium hirsutum (Upland cotton) (Gossypium mexicanum).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; malvids; Malvales; Malvaceae; Malvoideae; Gossypium.
OX NCBI_TaxID=3635;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=cv. Coker 201; TISSUE=Leaf;
RX PubMed=1932702; DOI=10.1007/bf00028747;
RA Sagliocco F., Kapazoglou A., Dure L. III;
RT "Sequence of an rbcS gene from cotton.";
RL Plant Mol. Biol. 17:1275-1276(1991).
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; X54091; CAA38026.1; -; Genomic_DNA.
DR PIR; S18344; RKCNSU.
DR RefSeq; XP_016743507.1; XM_016888018.1.
DR AlphaFoldDB; P31333; -.
DR SMR; P31333; -.
DR STRING; 3635.P31333; -.
DR GeneID; 107952825; -.
DR KEGG; ghi:107952825; -.
DR OMA; YREHGNS; -.
DR Proteomes; UP000189702; Chromosome 9.
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; Reference proteome; Transit peptide.
FT TRANSIT 1..58
FT /note="Chloroplast"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00860"
FT CHAIN 59..182
FT /note="Ribulose bisphosphate carboxylase small subunit,
FT chloroplastic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00860"
FT /id="PRO_0000031506"
FT VARIANT 66
FT /note="L -> T"
FT VARIANT 98
FT /note="I -> V"
FT VARIANT 148
FT /note="N -> E"
SQ SEQUENCE 182 AA; 20535 MW; 077258225E59A0DC CRC64;
MASSMISSAT IATVNCSSPA QANMVAPFTG LKSASAFPVT RKANNDITSL ASNGGRVQCM
QVWPPLGKKK FETLSYLPDL TPVQLAKEVD YLLRSKWIPC LEFELEEGFV HRKYSSLPTY
YDGRYWTMWK LPMFGCTDSA QVLEELENCK KEYPNAFIRI IGFDNVRQVQ CISFIAYKPK
GY
