RBS6_LEMGI
ID RBS6_LEMGI Reviewed; 177 AA.
AC P19312;
DT 01-NOV-1990, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1990, sequence version 1.
DT 25-MAY-2022, entry version 91.
DE RecName: Full=Ribulose bisphosphate carboxylase small subunit, chloroplastic 6 {ECO:0000255|HAMAP-Rule:MF_00860};
DE Short=RuBisCO small subunit 6 {ECO:0000255|HAMAP-Rule:MF_00860};
DE Short=RuBisCO small subunit SSU5B {ECO:0000303|PubMed:2103442};
DE Flags: Precursor;
GN Name=RBCS6 {ECO:0000255|HAMAP-Rule:MF_00860};
GN Synonyms=SSU5B {ECO:0000303|PubMed:2103442};
OS Lemna gibba (Swollen duckweed).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Araceae; Lemnoideae; Lemna.
OX NCBI_TaxID=4470;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND INDUCTION.
RX PubMed=2103442; DOI=10.1007/bf00017723;
RA Silverthorne J., Wimpee C.F., Yamada T., Rolfe S.A., Tobin E.M.;
RT "Differential expression of individual genes encoding the small subunit of
RT ribulose-1,5-bisphosphate carboxylase in Lemna gibba.";
RL Plant Mol. Biol. 15:49-58(1990).
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 -!- INDUCTION: Accumulates to medium levels when grown under continuous
CC white light. {ECO:0000269|PubMed:2103442}.
CC -!- MISCELLANEOUS: This protein is coded by one member of a small multigene
CC family.
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; X17231; CAA35100.1; -; Genomic_DNA.
DR PIR; S11684; RKDWSU.
DR AlphaFoldDB; P19312; -.
DR SMR; P19312; -.
DR PRIDE; P19312; -.
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 2: Evidence at transcript level;
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..177
FT /note="Ribulose bisphosphate carboxylase small subunit,
FT chloroplastic 6"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00860"
FT /id="PRO_0000031517"
SQ SEQUENCE 177 AA; 19872 MW; 8B79B2608887FCB3 CRC64;
MASSMMASTA AVARVGPAQT NMVAPFNGLR SSVAFPATRK ANNDLSTLPS NGGRVSCMQV
WPPEGLKKFE TLSYLPPLSV EDLAKEVDYL LRNDWVPCIE FSKEGFVYRE NHASPGYYDG
RYWTMWKLPM FGCTDASQVI AEVEEAKKAY PEYFVRIIGF DNKRQVQCIS FIAYKPT
