ID   RBL_THISH               Reviewed;         473 AA.
AC   B8GQP8;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   27-MAR-2024, entry version 74.
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};
GN   Name=cbbL {ECO:0000255|HAMAP-Rule:MF_01338};
GN   OrderedLocusNames=Tgr7_3203;
OS   Thioalkalivibrio sulfidiphilus (strain HL-EbGR7).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales;
OC   Ectothiorhodospiraceae; Thioalkalivibrio.
OX   NCBI_TaxID=396588;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HL-EbGR7;
RX   PubMed=21475584; DOI=10.4056/sigs.1483693;
RA   Muyzer G., Sorokin D.Y., Mavromatis K., Lapidus A., Clum A., Ivanova N.,
RA   Pati A., d'Haeseleer P., Woyke T., Kyrpides N.C.;
RT   "Complete genome sequence of 'Thioalkalivibrio sulfidophilus' HL-EbGr7.";
RL   Stand. Genomic Sci. 4:23-35(2011).
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; Evidence={ECO:0000255|HAMAP-
CC         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}.
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DR   EMBL; CP001339; ACL74272.1; -; Genomic_DNA.
DR   RefSeq; WP_012639734.1; NC_011901.1.
DR   AlphaFoldDB; B8GQP8; -.
DR   SMR; B8GQP8; -.
DR   STRING; 396588.Tgr7_3203; -.
DR   KEGG; tgr:Tgr7_3203; -.
DR   eggNOG; COG1850; Bacteria.
DR   HOGENOM; CLU_031450_2_0_6; -.
DR   OrthoDB; 9770811at2; -.
DR   Proteomes; UP000002383; 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; 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_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; 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; 1.
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.
DR   PROSITE; PS00157; RUBISCO_LARGE; 1.
PE   3: Inferred from homology;
KW   Calvin cycle; Carbon dioxide fixation; Lyase; Magnesium; Metal-binding;
KW   Monooxygenase; Oxidoreductase; Reference proteome.
FT   CHAIN           1..473
FT                   /note="Ribulose bisphosphate carboxylase large chain"
FT                   /id="PRO_1000166263"
FT   ACT_SITE        168
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   ACT_SITE        287
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   BINDING         116
FT                   /ligand="substrate"
FT                   /note="in homodimeric partner"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   BINDING         166
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   BINDING         170
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   BINDING         194
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         196
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   BINDING         197
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   BINDING         288
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   BINDING         320
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   BINDING         372
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   SITE            327
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
FT   MOD_RES         194
FT                   /note="N6-carboxylysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01338"
SQ   SEQUENCE   473 AA;  52759 MW;  3B9757752D1DFF12 CRC64;
     MAAKKYSAGV KEYRQTYWTP EYVPLDTDLL ACFKITPQPG VDREEAAAAV AAESSTGTWT
     TVWTDLLTDM DYYKGRAYRI EDVPGDDECF YAFIAYPIDL FEEGSVVNVF TSLVGNVFGF
     KAVRALRLED VRFPIAYVKT CGGPPHGIQV ERDMMNKYGR PMLGCTIKPK LGLSGKNYGR
     AVYECLRGGL DFTKDDENIN SQPFMRWRQR FDFVMEAIHK AEAETGERKG HYLNVTAPTP
     EEMYKRAEYA KEIGAPIIMH DYITGGFTAN TGLANWCRDN GVLLHIHRAM HAVLDRHPKH
     GIHFRVLAKI LRLSGGDHLH TGTVVGKLEG DRAATLGWID LLREQFVPED RSRGIMFDQD
     WGSMPGVFAV ASGGIHVWHM PALVTIFGDD SVLQFGGGTL GHPWGNAAGA HANRVALEAC
     VQARNEGRDV EREGKEILTA AAAHSPELKI AMETWKEIKF EFDTVDKLDV AHK
//