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RBL_PYRAB
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   03-AUG-2022, entry version 123.
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   EnsemblBacteria; CAB50122; CAB50122; PAB1580.
DR   KEGG; pab:PAB1580; -.
DR   PATRIC; fig|272844.11.peg.1291; -.
DR   eggNOG; arCOG04443; Archaea.
DR   HOGENOM; CLU_031450_3_1_2; -.
DR   OMA; IHGHPDG; -.
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; -; 1.
DR   Gene3D; 3.30.70.150; -; 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   PANTHER; PTHR42704; PTHR42704; 1.
DR   Pfam; PF00016; RuBisCO_large; 1.
DR   Pfam; PF02788; RuBisCO_large_N; 1.
DR   SFLD; SFLDS00014; RuBisCO; 2.
DR   SUPFAM; SSF51649; SSF51649; 1.
DR   SUPFAM; SSF54966; SSF54966; 1.
DR   TIGRFAMs; TIGR03326; rubisco_III; 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
 
 
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