RBL1B_METPP
ID RBL1B_METPP Reviewed; 485 AA.
AC A2SJJ7;
DT 11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT 11-SEP-2007, sequence version 2.
DT 03-AUG-2022, entry version 82.
DE RecName: Full=Ribulose bisphosphate carboxylase large chain 2 {ECO:0000255|HAMAP-Rule:MF_01338};
DE Short=RuBisCO large subunit 2 {ECO:0000255|HAMAP-Rule:MF_01338};
DE EC=4.1.1.39 {ECO:0000255|HAMAP-Rule:MF_01338};
GN Name=cbbL2 {ECO:0000255|HAMAP-Rule:MF_01338}; OrderedLocusNames=Mpe_A2782;
OS Methylibium petroleiphilum (strain ATCC BAA-1232 / LMG 22953 / PM1).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales; Methylibium.
OX NCBI_TaxID=420662;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1232 / LMG 22953 / PM1;
RX PubMed=17158667; DOI=10.1128/jb.01259-06;
RA Kane S.R., Chakicherla A.Y., Chain P.S.G., Schmidt R., Shin M.W.,
RA Legler T.C., Scow K.M., Larimer F.W., Lucas S.M., Richardson P.M.,
RA Hristova K.R.;
RT "Whole-genome analysis of the methyl tert-butyl ether-degrading beta-
RT proteobacterium Methylibium petroleiphilum PM1.";
RL J. Bacteriol. 189:1931-1945(2007).
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. {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 {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 -!- SEQUENCE CAUTION:
CC Sequence=ABM95736.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP000555; ABM95736.1; ALT_INIT; Genomic_DNA.
DR AlphaFoldDB; A2SJJ7; -.
DR SMR; A2SJJ7; -.
DR STRING; 420662.Mpe_A2782; -.
DR EnsemblBacteria; ABM95736; ABM95736; Mpe_A2782.
DR KEGG; mpt:Mpe_A2782; -.
DR eggNOG; COG1850; Bacteria.
DR HOGENOM; CLU_031450_2_0_4; -.
DR Proteomes; UP000000366; Chromosome.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004497; F:monooxygenase activity; IEA:UniProtKB-KW.
DR GO; GO:0016984; F:ribulose-bisphosphate carboxylase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019253; P:reductive pentose-phosphate cycle; IEA:UniProtKB-UniRule.
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; Lyase; Magnesium; Metal-binding;
KW Monooxygenase; Oxidoreductase; Photosynthesis; Reference proteome.
FT CHAIN 1..485
FT /note="Ribulose bisphosphate carboxylase large chain 2"
FT /id="PRO_0000299965"
FT ACT_SITE 177
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT ACT_SITE 295
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 125
FT /ligand="substrate"
FT /note="in homodimeric partner"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 175
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 179
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 203
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 205
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 206
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 296
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 328
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT BINDING 380
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT SITE 335
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT MOD_RES 203
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
SQ SEQUENCE 485 AA; 53310 MW; 3B36C71F79F2FCAD CRC64;
MNEPTQITDT KKRYAAGVLK YAQMGYWNGD YVPKDTDILA LFRITPQDGV DPIEAAAAVA
GESSTATWTV VWTDRLTACD MYRAKAYKVE PVPNNPGQYF CYVAYDLSLF EEGSIANVTA
SIIGNVFSFK PLKAARLEDM KFPVSYVKTF AGPPTGIVVE RERLDKFGRP LLGATTKPKL
GLSGRNYGRV VYEGLKGGLD FMKDDENINS QPFMHWRDRF LFVMDAVNKA SAATGEVKGS
YLNVTAGTME EMYRRAEFAK ELGSVIIMID LVVGYTAIQS MSNWARQNDM VLHMHRAGHG
TYTRQKNHGV SFRVIAKWLR MAGVDHLHTG TAVGKLEGDP LTVQGYYNVC RDTHTKVDLP
RGIFFDQDWG ALKKVMPVAS GGIHAGQMHQ LIDLFGDDVV LQFGGGTIGH PQGIQAGATA
NRVALEAMVL ARNEGRDIKN EGPQILRDAA KSCTPLAAAL DTWGDITFNY TSTDTSDYVP
TPSVA
