ID RBL_NOSP7 Reviewed; 476 AA. AC B2J8T2; DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot. DT 10-JUN-2008, sequence version 1. DT 27-MAR-2024, entry version 79. 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 Synonyms=rbcL {ECO:0000255|HAMAP-Rule:MF_01338}; GN OrderedLocusNames=Npun_F4195; OS Nostoc punctiforme (strain ATCC 29133 / PCC 73102). OC Bacteria; Cyanobacteriota; Cyanophyceae; Nostocales; Nostocaceae; Nostoc. OX NCBI_TaxID=63737; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 29133 / PCC 73102; RX PubMed=23463784; DOI=10.1104/pp.112.213116; RA Ekman M., Picossi S., Campbell E.L., Meeks J.C., Flores E.; RT "A Nostoc punctiforme Sugar Transporter Necessary to Establish a RT Cyanobacterium-Plant Symbiosis."; RL Plant Physiol. 161:1984-1992(2013). 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; 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 disulfide-linked. The disulfide link is formed within the large subunit CC homodimers. {ECO:0000255|HAMAP-Rule:MF_01338}. CC -!- SUBCELLULAR LOCATION: Carboxysome {ECO:0000255|HAMAP-Rule:MF_01338}. 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}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; CP001037; ACC82570.1; -; Genomic_DNA. DR RefSeq; WP_012410537.1; NC_010628.1. DR AlphaFoldDB; B2J8T2; -. DR SMR; B2J8T2; -. DR STRING; 63737.Npun_F4195; -. DR EnsemblBacteria; ACC82570; ACC82570; Npun_F4195. DR KEGG; npu:Npun_F4195; -. DR eggNOG; COG1850; Bacteria. DR HOGENOM; CLU_031450_2_0_3; -. DR OrthoDB; 9770811at2; -. DR PhylomeDB; B2J8T2; -. DR Proteomes; UP000001191; Chromosome. DR GO; GO:0031470; C:carboxysome; IEA:UniProtKB-SubCell. 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:0009853; P:photorespiration; IEA:UniProtKB-KW. 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 Bacterial microcompartment; Calvin cycle; Carbon dioxide fixation; KW Carboxysome; Disulfide bond; Lyase; Magnesium; Metal-binding; KW Monooxygenase; Oxidoreductase; Photorespiration; Photosynthesis; KW Reference proteome. FT CHAIN 1..476 FT /note="Ribulose bisphosphate carboxylase large chain" FT /id="PRO_1000142750" FT ACT_SITE 176 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 124 FT /ligand="substrate" FT /note="in homodimeric partner" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT BINDING 174 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT BINDING 178 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT BINDING 202 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 204 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" 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 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 202 FT /note="N6-carboxylysine" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT DISULFID 248 FT /note="Interchain; in linked form" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" SQ SEQUENCE 476 AA; 53083 MW; 1D19758D23068D33 CRC64; MSYAQTKTQS KSGYQAGVKD YRLTYYTPDY TPKDTDLLAA FRMTPQPGVP PEEAGAAVAA ESSTGTWTTV WTDLLTDLDR YKGRCYDIEP VPGEDNQYIC YVAYPLDLFE EGSVTNVLTS IVGNVFGFKA LRALRLEDIR FPVAYIKTFQ GPPHGIQVER DKLNKYGRPL LGCTIKPKLG LSAKNYGRAV YECLRGGLDF TKDDENINSA PFQRWRDRFL FVAEAINKAQ AETGEIKGHY LNVTAPTCEQ MLQRAEYAKE LKQPIIMHDY LTAGFTANTT LARWCRDNGI LLHIHRAMHA VIDRQKNHGI HFRVLAKALR LSGGDHIHTG TVVGKLEGER GITMGFVDLL RENYIEQDKS RGIYFTQDWA SLPGVMAVAS GGIHVWHMPA LVEIFGDDSV LQFGGGTLGH PWGNAPGATA NRVALEAVVQ ARNEGRNLAR EGNDIIREAA KWSPELAVAC ELWKEIKFEF EAMDTV //