RBL_FOUSP
ID RBL_FOUSP Reviewed; 441 AA.
AC Q05990;
DT 01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1994, sequence version 1.
DT 03-AUG-2022, entry version 99.
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 Fouquieria splendens (Ocotillo).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; Ericales; Fouquieriaceae; Fouquieria.
OX NCBI_TaxID=13533;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX AGRICOLA=IND93014998; DOI=10.2307/2399768;
RA Olmstead R.G., Michaels H.J., Scott K.M., Palmer J.D.;
RT "Monophyly of the Asteridae and identification of their major lineages
RT inferred from DNA sequences of rbcL.";
RL Ann. Mo. Bot. Gard. 79:249-265(1992).
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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; L11675; AAA84257.1; -; Genomic_DNA.
DR AlphaFoldDB; Q05990; -.
DR SMR; Q05990; -.
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; Monooxygenase; Oxidoreductase; Photorespiration;
KW Photosynthesis; Plastid.
FT CHAIN <1..441
FT /note="Ribulose bisphosphate carboxylase large chain"
FT /id="PRO_0000062474"
FT ACT_SITE 141
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT ACT_SITE 260
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 89
FT /ligand="substrate"
FT /note="in homodimeric partner"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 139
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 143
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 167
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 169
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 170
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 261
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 293
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 345
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT SITE 300
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT MOD_RES 167
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT DISULFID 213
FT /note="Interchain; in linked form"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT NON_TER 1
SQ SEQUENCE 441 AA; 48873 MW; FC2BBAE85DE6E467 CRC64;
DILAAFRVTP QPGVPPEEAG AAVAPESSTG TWTTVWTDGL TSLDRYKGRC YHIEPVAGEE
NQYIAYVAYP LDLFEEGSVT NMFTSIVGNV FGFKALRALR LEDLRIPPAY SKTFQGPPHG
IQVERDKLNK YGRPLLGCTI KPKLGLSAKN YGRAVYECLR GGLDFTKDDE NVNSQPFMRW
RDRFLFCAEA IYKAQAETGE IKGHYLNATA GTCEEMIKRA VFARELGVPI VMHDYLTGGF
TANTSLAHYC RDNGLLLHIH RAMHAVIDRQ KNRGMHFRVL AKALRMSGGD HIHAGTVVGK
LEGERDITLG FVDLLRDDFL EKDRSRGIYF TQDWVSLPGV LPVASGGIHV WHMPALTEIF
GDDSVLQFGG GTLGHPWGNA PGAVANRVAL EACVQARNEG RDLAREGNEI IREASKWSPE
LAAACEVWKE IKFEFEAMDT L
