RBL_ANTMA
ID RBL_ANTMA Reviewed; 443 AA.
AC Q05554;
DT 01-JUN-1994, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-1994, sequence version 1.
DT 03-AUG-2022, entry version 93.
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 Antirrhinum majus (Garden snapdragon).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; lamiids; Lamiales; Plantaginaceae; Antirrhineae; Antirrhinum.
OX NCBI_TaxID=4151;
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}.
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DR EMBL; L11688; AAA84017.1; -; Genomic_DNA.
DR PRIDE; Q05554; -.
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..443
FT /note="Ribulose bisphosphate carboxylase large chain"
FT /id="PRO_0000062354"
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 443 AA; 49077 MW; 386A3D9F38663BB5 CRC64;
DILAAFRVTP QPGVPPEEAG AAVXAESSTG TWTTVWTDGL TSLDRYKGRC YHIEPVPGEA
DQYICYVAYP LDLFEEGSVT NMFTSIVGNV FGFKALRALR LEDLRIPXAY VKTFQGPPHG
IQVERDKLNK YGRPLLGCTI KPKLGLSAKN YGRACYECLR GGLDFTKDDE NVNSQPFMRW
RDRFLFCAEA IYKSQAETGE IKGHYLNATA GTCEEMMKRA VFARELGVPI IMHDYLTGGF
TANTSLAHYC RDNGLLLHIH RAMHAVIDRQ KNHGIHFRVL AKALRMSGGD HIHSGTVVGK
LEGEREITLG FVDLLRDDFI EKDRSRGIYF TXDWVSLPGV IPVASGGIHV WHMPALTEIF
GDDSVLQFGG GTLGHPWGNX PGAVANRVAL EACVQARNEG RDLAAEGNTI IREASKWSPE
LAAACEVWKE IKFEFKPVDT LDV
