ID Q9XQT2_9FLOR Unreviewed; 485 AA.
AC Q9XQT2;
DT 01-NOV-1999, integrated into UniProtKB/TrEMBL.
DT 01-NOV-1999, sequence version 1.
DT 24-JAN-2024, entry version 86.
DE RecName: Full=Ribulose bisphosphate carboxylase large chain {ECO:0000256|RuleBase:RU000302};
DE EC=4.1.1.39 {ECO:0000256|RuleBase:RU000302};
DE Flags: Fragment;
GN Name=rbcL {ECO:0000313|EMBL:AAD37991.1};
OS Gigartina radula.
OG Plastid; Chloroplast {ECO:0000313|EMBL:AAD37991.1}.
OC Eukaryota; Rhodophyta; Florideophyceae; Rhodymeniophycidae; Gigartinales;
OC Gigartinaceae; Gigartina.
OX NCBI_TaxID=33671 {ECO:0000313|EMBL:AAD37991.1};
RN [1] {ECO:0000313|EMBL:AAD37991.1}
RP NUCLEOTIDE SEQUENCE.
RA Hommersand M.H., Fredericq S., Freshwater D.W., Hughey J.;
RT "Recent developments in the systematics of the Gigartinaceae (Gigartinales,
RT Rhodophyta) based on rbcL sequence analysis and morphological evidence.";
RL Submitted (APR-1999) to the EMBL/GenBank/DDBJ databases.
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;
CC Evidence={ECO:0000256|ARBA:ARBA00001067,
CC ECO:0000256|RuleBase:RU000302};
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:0000256|ARBA:ARBA00000537,
CC ECO:0000256|RuleBase:RU000302};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|RuleBase:RU000302};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|RuleBase:RU000302};
CC -!- SUBUNIT: Heterohexadecamer of 8 large chains and 8 small chains.
CC {ECO:0000256|ARBA:ARBA00011371, ECO:0000256|RuleBase:RU000302}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast
CC {ECO:0000256|RuleBase:RU000302}.
CC -!- SIMILARITY: Belongs to the RuBisCO large chain family.
CC {ECO:0000256|RuleBase:RU000302}.
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DR EMBL; AF146205; AAD37991.1; -; Genomic_DNA.
DR AlphaFoldDB; Q9XQT2; -.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR GO; GO:0000287; F:magnesium ion binding; IEA:InterPro.
DR GO; GO:0004497; F:monooxygenase activity; IEA:UniProtKB-KW.
DR GO; GO:0016984; F:ribulose-bisphosphate carboxylase activity; IEA:UniProtKB-EC.
DR GO; GO:0019253; P:reductive pentose-phosphate cycle; IEA:UniProtKB-KW.
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 {ECO:0000256|ARBA:ARBA00022567,
KW ECO:0000256|RuleBase:RU000302};
KW Carbon dioxide fixation {ECO:0000256|ARBA:ARBA00023300,
KW ECO:0000256|RuleBase:RU000302};
KW Chloroplast {ECO:0000256|RuleBase:RU000302, ECO:0000313|EMBL:AAD37991.1};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|RuleBase:RU000302};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|RuleBase:RU000302};
KW Membrane {ECO:0000256|SAM:Phobius};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU000302};
KW Monooxygenase {ECO:0000256|ARBA:ARBA00023033,
KW ECO:0000256|RuleBase:RU000302};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|RuleBase:RU000302};
KW Photorespiration {ECO:0000256|RuleBase:RU000302};
KW Photosynthesis {ECO:0000256|RuleBase:RU000302};
KW Plastid {ECO:0000256|ARBA:ARBA00022640, ECO:0000313|EMBL:AAD37991.1};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius}.
FT TRANSMEM 261..283
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 25..145
FT /note="Ribulose bisphosphate carboxylase large subunit
FT ferrodoxin-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF02788"
FT DOMAIN 155..462
FT /note="Ribulose bisphosphate carboxylase large subunit C-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF00016"
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:AAD37991.1"
SQ SEQUENCE 485 AA; 53905 MW; 907B599A33846043 CRC64;
SVEERTRIKN ERYESGVIPY AKMGYWDPDY LVKDTDVLAL FRVSPQPGVD PVEASAAVAG
ESSTATWTVV WTDLLTACDL YRAKAYKVDL VPNTTDQYFA YIAYDIDLFE EGSIANLTAS
IIGNVFGFKA VKALRLEDMR LPVAYLKTFQ GPATGIICER ERMDKFGRPF LGATVKPKLG
LSGKNYGRVV YEGLKGGLDF LKDDENINSQ PFMRWKERYL YSMEAVNRSI AASGETKGHY
LNVTAATMEE MYERAEFAKQ LGSIIIMIDL VIGYTAIQTM AVWSRKNDMI LHLHRAGNST
YSRQKIHGMN FRVICKWMRM AGVDHIHAGT VVGKLEGDPL MIKGFYNTLL LPYLEVNLPQ
GIFFEQDWAS LRKVTPVASG GIHCGQMHQL LDYLGNDVVL QFGGGTIGHP DGIQAGATAN
RVALESMVIA RNEGRDYVAE GPQILQDAAK TCGPLQTALD LWKDITFNYT STDTADFVET
PTANV
//
