ID RBL_SYNSC Reviewed; 471 AA. AC Q3ALL1; DT 03-OCT-2006, integrated into UniProtKB/Swiss-Prot. DT 22-NOV-2005, sequence version 1. DT 27-MAR-2024, entry version 103. 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=Syncc9605_0752; OS Synechococcus sp. (strain CC9605). OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Synechococcaceae; OC Synechococcus. OX NCBI_TaxID=110662; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=CC9605; RG US DOE Joint Genome Institute; RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., RA Hammon N., Israni S., Pitluck S., Schmutz J., Martinez M., Larimer F., RA Land M., Kyrpides N., Ivanova N., Richardson P.; RT "Complete sequence of Synechococcus sp. CC9605."; RL Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases. 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 {ECO:0000255|HAMAP-Rule:MF_01338}. CC -!- SUBCELLULAR LOCATION: Carboxysome {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; CP000110; ABB34521.1; -; Genomic_DNA. DR RefSeq; WP_011363747.1; NC_007516.1. DR AlphaFoldDB; Q3ALL1; -. DR SMR; Q3ALL1; -. DR STRING; 110662.Syncc9605_0752; -. DR KEGG; syd:Syncc9605_0752; -. DR eggNOG; COG1850; Bacteria. DR HOGENOM; CLU_031450_2_0_3; -. DR OrthoDB; 9770811at2; -. 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 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; Lyase; Magnesium; Metal-binding; Monooxygenase; KW Oxidoreductase; Photorespiration; Photosynthesis. FT CHAIN 1..471 FT /note="Ribulose bisphosphate carboxylase large chain" FT /id="PRO_0000251465" FT ACT_SITE 167 FT /note="Proton acceptor" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT ACT_SITE 286 FT /note="Proton acceptor" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT BINDING 115 FT /ligand="substrate" FT /note="in homodimeric partner" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT BINDING 165 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT BINDING 169 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT BINDING 193 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 195 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" 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 287 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT BINDING 319 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT BINDING 371 FT /ligand="substrate" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT SITE 326 FT /note="Transition state stabilizer" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" FT MOD_RES 193 FT /note="N6-carboxylysine" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01338" SQ SEQUENCE 471 AA; 52832 MW; C9D5CF9DAFD6B97D CRC64; MSKKYDAGVK EYRDTYWTPD YVPLDTDLLA CFKCTGQEGV PKEEVAAAVA AESSTGTWST VWSELLTDLD FYKGRCYRIE DVPGDKESFY AFIAYPLDLF EEGSITNVLT SLVGNVFGFK ALRHLRLEDI RFPMAFIKSC YGPPNGIQVE RDRMNKYGRP LLGCTIKPKL GLSGKNYGRV VYECLRGGLD FTKDDENINS QPFQRWQNRF EFVAEAIKLS EQETGERKGH YLNVTANTPE EMYERAEFAK ELGMPIIMHD FITGGFTANT GLSKWCRKNG MLLHIHRAMH AVIDRHPKHG IHFRVLAKCL RLSGGDQLHT GTVVGKLEGD RQTTLGYIDQ LRESFVPEDR SRGNFFDQDW GSMPGVFAVA SGGIHVWHMP ALVTIFGDDS VLQFGGGTHG HPWGSAAGAA ANRVALEACV KARNAGRHLE KESRDILTEA AKHSPELAIA LETWKEIKFE FDTVDKLDVQ N //