RBL_ANTRE
ID RBL_ANTRE Reviewed; 414 AA.
AC P43224;
DT 01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1995, sequence version 1.
DT 03-AUG-2022, entry version 94.
DE RecName: Full=Ribulose bisphosphate carboxylase large chain;
DE Short=RuBisCO large subunit;
DE EC=4.1.1.39;
DE Flags: Fragment;
GN Name=rbcL;
OS Antrophyum reticulatum (Ox-tongue fern).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Polypodiopsida; Polypodiidae; Polypodiales; Pteridineae; Pteridaceae;
OC Vittarioideae; Antrophyum.
OX NCBI_TaxID=29628;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC TISSUE=Leaf;
RX PubMed=8202555; DOI=10.1073/pnas.91.12.5730;
RA Hasebe M., Omori T., Nakazawa M., Sano T., Kato M., Iwatsuki K.;
RT "rbcL gene sequences provide evidence for the evolutionary lineages of
RT leptosporangiate ferns.";
RL Proc. Natl. Acad. Sci. U.S.A. 91:5730-5734(1994).
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 in the photorespiration process. Both reactions occur
CC simultaneously and in competition at the same active site (By
CC similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 (2R)-3-phosphoglycerate + 2 H(+) = CO2 + D-ribulose 1,5-
CC bisphosphate + H2O; Xref=Rhea:RHEA:23124, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:57870,
CC ChEBI:CHEBI:58272; EC=4.1.1.39;
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-ribulose 1,5-bisphosphate + O2 = (2R)-3-phosphoglycerate +
CC 2-phosphoglycolate + 2 H(+); Xref=Rhea:RHEA:36631, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:15379, ChEBI:CHEBI:57870, ChEBI:CHEBI:58033,
CC ChEBI:CHEBI:58272;
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000250};
CC -!- SUBUNIT: Heterohexadecamer of 8 large chains and 8 small chains;
CC disulfide-linked. The disulfide link is formed within the large subunit
CC homodimers (By similarity). {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC -!- PTM: The disulfide bond which can form in the large chain dimeric
CC partners within the hexadecamer appears to be associated with oxidative
CC stress and protein turnover. {ECO:0000250}.
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' (By
CC similarity). {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the RuBisCO large chain family. Type I
CC subfamily. {ECO:0000305}.
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DR EMBL; U05604; AAA19888.1; -; Genomic_DNA.
DR AlphaFoldDB; P43224; -.
DR SMR; P43224; -.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR GO; GO:0000287; F:magnesium ion binding; IEA:InterPro.
DR GO; GO:0004497; F:monooxygenase activity; IEA:UniProtKB-KW.
DR GO; GO:0016984; F:ribulose-bisphosphate carboxylase activity; IEA:UniProtKB-EC.
DR GO; GO:0009853; P:photorespiration; IEA:UniProtKB-KW.
DR GO; GO:0019253; P:reductive pentose-phosphate cycle; IEA:UniProtKB-KW.
DR Gene3D; 3.20.20.110; -; 1.
DR Gene3D; 3.30.70.150; -; 1.
DR InterPro; IPR033966; RuBisCO.
DR InterPro; IPR020878; RuBisCo_large_chain_AS.
DR InterPro; IPR000685; RuBisCO_lsu_C.
DR InterPro; IPR036376; RuBisCO_lsu_C_sf.
DR InterPro; IPR017443; RuBisCO_lsu_fd_N.
DR InterPro; IPR036422; RuBisCO_lsu_N_sf.
DR PANTHER; PTHR42704; PTHR42704; 1.
DR Pfam; PF00016; RuBisCO_large; 1.
DR Pfam; PF02788; RuBisCO_large_N; 1.
DR SFLD; SFLDS00014; RuBisCO; 1.
DR SUPFAM; SSF51649; SSF51649; 1.
DR SUPFAM; SSF54966; SSF54966; 1.
DR PROSITE; PS00157; RUBISCO_LARGE; 1.
PE 3: Inferred from homology;
KW Calvin cycle; Carbon dioxide fixation; Chloroplast; Disulfide bond; Lyase;
KW Magnesium; Metal-binding; Monooxygenase; Oxidoreductase; Photorespiration;
KW Photosynthesis; Plastid.
FT CHAIN <1..>414
FT /note="Ribulose bisphosphate carboxylase large chain"
FT /id="PRO_0000062355"
FT ACT_SITE 154
FT /note="Proton acceptor"
FT /evidence="ECO:0000250"
FT ACT_SITE 273
FT /note="Proton acceptor"
FT /evidence="ECO:0000250"
FT BINDING 102
FT /ligand="substrate"
FT /note="in homodimeric partner"
FT /evidence="ECO:0000250"
FT BINDING 152
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 156
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 180
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /note="via carbamate group"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10114"
FT BINDING 182
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10114"
FT BINDING 183
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10114"
FT BINDING 274
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 306
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 358
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT SITE 313
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000250"
FT MOD_RES 180
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10114"
FT DISULFID 226
FT /note="Interchain; in linked form"
FT /evidence="ECO:0000250"
FT NON_TER 1
FT NON_TER 414
SQ SEQUENCE 414 AA; 45807 MW; 7FF8993C7BE9DA65 CRC64;
LTYYTPEYKT KDTDILGAFR MTPQPGVPAE EAGAAVAAES STGTWTTVWT DGLTSLDRYK
GRCYDIEPVA GEENQYIVYV AYPLDLFEEG SVTNMFTSIV GNVFGFKALR ALRLEDLRIP
PAYSKTFQGP PHGIQVERDK LNKYGRPLLG CTIKPKLGLS AKNYGRAVYE CLRGGLDFTK
DDENVNSQPF MRWRDRFLFV AEALFKSQAE TGEIKGHYLN ATAGHCEEMM KRAIFARELG
APIVMHDYLT GGFTANTSLA HYCRDNGLLL HIHRAMHAVI SRQKIHGMHF RVLAKGLRMS
GGDHIHGGTV VGKLEGEREV TLGFVDLLRD DFIEKDRNRG IYFTQDWVSM PGVIPVASGG
IHVWHMPALT EILGDESVPQ FGGGTLGHPW GIAPGSVANP VAVETSVQLR NEGR
