ID RBL_PYRAB Reviewed; 424 AA.
AC Q9UZD7; G8ZKK4;
DT 26-SEP-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-MAY-2000, sequence version 1.
DT 27-MAR-2024, entry version 128.
DE RecName: Full=Ribulose bisphosphate carboxylase {ECO:0000255|HAMAP-Rule:MF_01133};
DE Short=RuBisCO {ECO:0000255|HAMAP-Rule:MF_01133};
DE EC=4.1.1.39 {ECO:0000255|HAMAP-Rule:MF_01133};
GN Name=rbcL {ECO:0000255|HAMAP-Rule:MF_01133}; OrderedLocusNames=PYRAB12110;
GN ORFNames=PAB1580;
OS Pyrococcus abyssi (strain GE5 / Orsay).
OC Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae;
OC Pyrococcus.
OX NCBI_TaxID=272844;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=GE5 / Orsay;
RX PubMed=12622808; DOI=10.1046/j.1365-2958.2003.03381.x;
RA Cohen G.N., Barbe V., Flament D., Galperin M., Heilig R., Lecompte O.,
RA Poch O., Prieur D., Querellou J., Ripp R., Thierry J.-C., Van der Oost J.,
RA Weissenbach J., Zivanovic Y., Forterre P.;
RT "An integrated analysis of the genome of the hyperthermophilic archaeon
RT Pyrococcus abyssi.";
RL Mol. Microbiol. 47:1495-1512(2003).
RN [2]
RP GENOME REANNOTATION.
RC STRAIN=GE5 / Orsay;
RX PubMed=22057919; DOI=10.1007/s00284-011-0035-x;
RA Gao J., Wang J.;
RT "Re-annotation of two hyperthermophilic archaea Pyrococcus abyssi GE5 and
RT Pyrococcus furiosus DSM 3638.";
RL Curr. Microbiol. 64:118-129(2012).
CC -!- FUNCTION: Catalyzes the addition of molecular CO(2) and H(2)O to
CC ribulose 1,5-bisphosphate (RuBP), generating two molecules of 3-
CC phosphoglycerate (3-PGA). Functions in an archaeal AMP degradation
CC pathway, together with AMP phosphorylase and R15P isomerase.
CC {ECO:0000255|HAMAP-Rule:MF_01133}.
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_01133};
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_01133};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01133};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01133};
CC -!- SUBUNIT: Homodimer or homodecamer. In contrast to form I RuBisCO, the
CC form III RuBisCO is composed solely of large subunits.
CC {ECO:0000255|HAMAP-Rule:MF_01133}.
CC -!- MISCELLANEOUS: Because the Archaea possessing a type III RuBisCO are
CC all anaerobic, it is most likely that only the carboxylase activity of
CC RuBisCO, and not the competitive oxygenase activity (by which RuBP
CC reacts with O(2) to form one molecule of 3-phosphoglycerate and one
CC molecule of 2-phosphoglycolate), is biologically relevant in these
CC strains. {ECO:0000255|HAMAP-Rule:MF_01133}.
CC -!- SIMILARITY: Belongs to the RuBisCO large chain family. Type III
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01133}.
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DR EMBL; AJ248286; CAB50122.1; -; Genomic_DNA.
DR EMBL; HE613800; CCE70647.1; -; Genomic_DNA.
DR PIR; E75102; E75102.
DR AlphaFoldDB; Q9UZD7; -.
DR SMR; Q9UZD7; -.
DR STRING; 272844.PAB1580; -.
DR KEGG; pab:PAB1580; -.
DR PATRIC; fig|272844.11.peg.1291; -.
DR eggNOG; arCOG04443; Archaea.
DR HOGENOM; CLU_031450_3_1_2; -.
DR PhylomeDB; Q9UZD7; -.
DR Proteomes; UP000000810; Chromosome.
DR Proteomes; UP000009139; Chromosome.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016491; F:oxidoreductase activity; IEA:UniProtKB-KW.
DR GO; GO:0016984; F:ribulose-bisphosphate carboxylase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006196; P:AMP catabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0015977; P:carbon fixation; IEA:UniProtKB-KW.
DR CDD; cd08213; RuBisCO_large_III; 1.
DR Gene3D; 3.20.20.110; Ribulose bisphosphate carboxylase, large subunit, C-terminal domain; 1.
DR Gene3D; 3.30.70.150; RuBisCO large subunit, N-terminal domain; 1.
DR HAMAP; MF_01133; RuBisCO_L_type3; 1.
DR InterPro; IPR033966; RuBisCO.
DR InterPro; IPR017712; RuBisCO_III.
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 NCBIfam; TIGR03326; rubisco_III; 1.
DR PANTHER; PTHR42704; RIBULOSE BISPHOSPHATE CARBOXYLASE; 1.
DR PANTHER; PTHR42704:SF9; RIBULOSE BISPHOSPHATE CARBOXYLASE LARGE CHAIN; 1.
DR Pfam; PF00016; RuBisCO_large; 1.
DR Pfam; PF02788; RuBisCO_large_N; 1.
DR SFLD; SFLDG01052; RuBisCO; 1.
DR SFLD; SFLDS00014; RuBisCO; 2.
DR SFLD; SFLDG00301; RuBisCO-like_proteins; 1.
DR SUPFAM; SSF51649; RuBisCo, C-terminal domain; 1.
DR SUPFAM; SSF54966; RuBisCO, large subunit, small (N-terminal) domain; 1.
PE 3: Inferred from homology;
KW Carbon dioxide fixation; Lyase; Magnesium; Metal-binding; Oxidoreductase.
FT CHAIN 1..424
FT /note="Ribulose bisphosphate carboxylase"
FT /id="PRO_0000062675"
FT ACT_SITE 159
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT ACT_SITE 277
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT BINDING 161
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT BINDING 185
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /note="via carbamate group"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT BINDING 187
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT BINDING 188
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT BINDING 278
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT BINDING 310
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT BINDING 347..349
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT BINDING 369..372
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT SITE 317
FT /note="Transition state stabilizer"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
FT MOD_RES 185
FT /note="N6-carboxylysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01133"
SQ SEQUENCE 424 AA; 47606 MW; CFBC3EEDB1D16A1F CRC64;
MVSSMKVEWY LDFVDLNYEP GRDELIVEYY FEPNGVSPEE AAGRIASESS IGTWTTLWKL
PEMAKRSMAK VFYLEKHGEG YIAKIAYPLT LFEEGSLVQL FSAIAGNVFG MKALKNLRLL
DFHPPYEYLR HFKGPQFGVK GIREFMGIKD RPLTATVPKP KMGWSVEEYA EIAYELWSGG
IDLLKDDENF TSFPFNRFEE RVKKLYRVRD RVEAETGETK EYLINITGPV NVMEKRAELV
ANEGGQYVMI DIVVAGWSAL QYMREVTEDL GLAIHAHRAM HAAFTRNPKH GITMFALAKA
ARMIGVDQIH TGTAVGKMAG DYEEIKKIND FLLSKWEHIR PVFPVASGGL HPGLMPELIR
LFGKDLVIQA GGGVMGHPDG PRAGAKALRD AIDAAIEGLD LEEKAKSSPE LKKALDKWGY
LKPK
//
