RBL_MATST
ID RBL_MATST Reviewed; 440 AA.
AC P48707;
DT 01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1996, sequence version 1.
DT 03-AUG-2022, entry version 96.
DE RecName: Full=Ribulose bisphosphate carboxylase large chain {ECO:0000255|HAMAP-Rule:MF_01338};
DE Short=RuBisCO large subunit {ECO:0000255|HAMAP-Rule:MF_01338};
DE EC=4.1.1.39 {ECO:0000255|HAMAP-Rule:MF_01338};
DE Flags: Fragment;
GN Name=rbcL {ECO:0000255|HAMAP-Rule:MF_01338};
OS Matteuccia struthiopteris (European ostrich fern) (Osmunda struthiopteris).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Polypodiopsida; Polypodiidae; Polypodiales; Aspleniineae; Onocleaceae;
OC Matteuccia.
OX NCBI_TaxID=3277;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC TISSUE=Leaf;
RX PubMed=7697195; DOI=10.1006/mpev.1994.1044;
RA Wolf P.G., Soltis P.S., Soltis D.E.;
RT "Phylogenetic relationships of dennstaedtioid ferns: evidence from rbcL
RT sequences.";
RL Mol. Phylogenet. Evol. 3:383-392(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.
CC {ECO:0000255|HAMAP-Rule:MF_01338}.
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; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01338};
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; Evidence={ECO:0000255|HAMAP-Rule:MF_01338};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01338};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01338};
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. {ECO:0000255|HAMAP-Rule:MF_01338}.
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:0000255|HAMAP-Rule:MF_01338}.
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_01338}.
CC -!- SIMILARITY: Belongs to the RuBisCO large chain family. Type I
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01338}.
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DR EMBL; U05930; AAC48955.1; -; Genomic_DNA.
DR AlphaFoldDB; P48707; -.
DR SMR; P48707; -.
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 CDD; cd08212; RuBisCO_large_I; 1.
DR Gene3D; 3.20.20.110; -; 1.
DR Gene3D; 3.30.70.150; -; 1.
DR HAMAP; MF_01338; RuBisCO_L_type1; 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 InterPro; IPR020888; RuBisCO_lsuI.
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; Methylation; Monooxygenase; Oxidoreductase;
KW Photorespiration; Photosynthesis; Plastid.
FT CHAIN <1..>440
FT /note="Ribulose bisphosphate carboxylase large chain"
FT /id="PRO_0000062531"
FT ACT_SITE 165
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT ACT_SITE 284
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 113
FT /ligand="substrate"
FT /note="in homodimeric partner"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 163
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 167
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 191
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /note="via carbamate group"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 193
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 194
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 285
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 317
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 369
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT SITE 324
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT MOD_RES 4
FT /note="N6,N6,N6-trimethyllysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT MOD_RES 191
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT DISULFID 237
FT /note="Interchain; in linked form"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT NON_TER 1
FT NON_TER 440
SQ SEQUENCE 440 AA; 48672 MW; 941451949526F390 CRC64;
VGFKAGVKDY RLTYYTPEYK TKDTDILAAF RMTPQPGVPA EEAGAAVAAE SSTGTWTTVW
TDGLTSLDRY KGRCYDIEPV AGEENQYIAY VAYPLDLFEE GSVTNLFTSI VGNVFGFKAL
RALRLEDLRI PPAYSKTFIG PPHGIQVERD KLNKYGRPLL GCTIKPKLGL SAKNYGRAVY
ECLRGGLDFT KDDENVNSQP FMRWRDRFLF VAEALFKSQA ETGEIKGHYL NATAGTCEEM
LKRAVFAREL GAPIVMHDYL TGGFTANTSL AFYCRDNGLL LHIHRAMHAV IDRQRNHGIH
FRVLAKALRM SGGDHIHAGT VVGKLEGERE VTLGFVDLLR DDYIEKDRSR GIYFTQDWVS
MPGVLPVASG GIHVWHMPAL TEIFGDDSVL QFGGGTLGHP WGNAPGAVAN RVALEACVQA
RNEGRDLARE GNTIIREASK
