ID A4S0R4_OSTLU Unreviewed; 679 AA.
AC A4S0R4;
DT 15-MAY-2007, integrated into UniProtKB/TrEMBL.
DT 15-MAY-2007, sequence version 1.
DT 27-MAR-2024, entry version 86.
DE RecName: Full=Transketolase {ECO:0000256|ARBA:ARBA00013152, ECO:0000256|RuleBase:RU004996};
DE EC=2.2.1.1 {ECO:0000256|ARBA:ARBA00013152, ECO:0000256|RuleBase:RU004996};
GN ORFNames=OSTLU_16284 {ECO:0000313|EMBL:ABO97078.1};
OS Ostreococcus lucimarinus (strain CCE9901).
OC Eukaryota; Viridiplantae; Chlorophyta; Mamiellophyceae; Mamiellales;
OC Bathycoccaceae; Ostreococcus.
OX NCBI_TaxID=436017 {ECO:0000313|EMBL:ABO97078.1, ECO:0000313|Proteomes:UP000001568};
RN [1] {ECO:0000313|EMBL:ABO97078.1, ECO:0000313|Proteomes:UP000001568}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCE9901 {ECO:0000313|EMBL:ABO97078.1,
RC ECO:0000313|Proteomes:UP000001568};
RX PubMed=17460045; DOI=10.1073/pnas.0611046104;
RA Palenik B., Grimwood J., Aerts A., Rouze P., Salamov A., Putnam N.,
RA Dupont C., Jorgensen R., Derelle E., Rombauts S., Zhou K., Otillar R.,
RA Merchant S.S., Podell S., Gaasterland T., Napoli C., Gendler K.,
RA Manuell A., Tai V., Vallon O., Piganeau G., Jancek S., Heijde M.,
RA Jabbari K., Bowler C., Lohr M., Robbens S., Werner G., Dubchak I.,
RA Pazour G.J., Ren Q., Paulsen I., Delwiche C., Schmutz J., Rokhsar D.,
RA Van de Peer Y., Moreau H., Grigoriev I.V.;
RT "The tiny eukaryote Ostreococcus provides genomic insights into the paradox
RT of plankton speciation.";
RL Proc. Natl. Acad. Sci. U.S.A. 104:7705-7710(2007).
CC -!- FUNCTION: Catalyzes the transfer of a two-carbon ketol group from a
CC ketose donor to an aldose acceptor, via a covalent intermediate with
CC the cofactor thiamine pyrophosphate. {ECO:0000256|RuleBase:RU004996}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=D-glyceraldehyde 3-phosphate + D-sedoheptulose 7-phosphate =
CC aldehydo-D-ribose 5-phosphate + D-xylulose 5-phosphate;
CC Xref=Rhea:RHEA:10508, ChEBI:CHEBI:57483, ChEBI:CHEBI:57737,
CC ChEBI:CHEBI:58273, ChEBI:CHEBI:59776; EC=2.2.1.1;
CC Evidence={ECO:0000256|ARBA:ARBA00001027,
CC ECO:0000256|RuleBase:RU004996};
CC -!- COFACTOR:
CC Name=Co(2+); Xref=ChEBI:CHEBI:48828;
CC Evidence={ECO:0000256|ARBA:ARBA00001941};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Name=Ca(2+); Xref=ChEBI:CHEBI:29108;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Name=Co(2+); Xref=ChEBI:CHEBI:48828;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Note=Binds 1 Mg(2+) ion per subunit. Can also utilize other divalent
CC metal cations, such as Ca(2+), Mn(2+) and Co(2+).
CC {ECO:0000256|RuleBase:RU004996};
CC -!- COFACTOR:
CC Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC Evidence={ECO:0000256|RuleBase:RU004996};
CC Note=Binds 1 thiamine pyrophosphate per subunit.
CC {ECO:0000256|RuleBase:RU004996};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738,
CC ECO:0000256|RuleBase:RU004996}.
CC -!- SIMILARITY: Belongs to the transketolase family.
CC {ECO:0000256|ARBA:ARBA00007131, ECO:0000256|RuleBase:RU004996}.
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; CP000587; ABO97078.1; -; Genomic_DNA.
DR RefSeq; XP_001418785.1; XM_001418748.1.
DR AlphaFoldDB; A4S0R4; -.
DR STRING; 436017.A4S0R4; -.
DR EnsemblPlants; ABO97078; ABO97078; OSTLU_16284.
DR GeneID; 5002704; -.
DR Gramene; ABO97078; ABO97078; OSTLU_16284.
DR KEGG; olu:OSTLU_16284; -.
DR eggNOG; KOG0523; Eukaryota.
DR HOGENOM; CLU_009227_0_0_1; -.
DR OMA; ADYMRGS; -.
DR OrthoDB; 5399939at2759; -.
DR Proteomes; UP000001568; Chromosome 7.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004802; F:transketolase activity; IEA:UniProtKB-EC.
DR CDD; cd07033; TPP_PYR_DXS_TK_like; 1.
DR CDD; cd02012; TPP_TK; 1.
DR Gene3D; 3.40.50.920; -; 1.
DR Gene3D; 3.40.50.970; -; 2.
DR InterPro; IPR029061; THDP-binding.
DR InterPro; IPR009014; Transketo_C/PFOR_II.
DR InterPro; IPR005475; Transketolase-like_Pyr-bd.
DR InterPro; IPR005478; Transketolase_bac-like.
DR InterPro; IPR020826; Transketolase_BS.
DR InterPro; IPR033248; Transketolase_C.
DR InterPro; IPR049557; Transketolase_CS.
DR InterPro; IPR033247; Transketolase_fam.
DR InterPro; IPR005474; Transketolase_N.
DR NCBIfam; TIGR00232; tktlase_bact; 1.
DR PANTHER; PTHR43522; TRANSKETOLASE; 1.
DR PANTHER; PTHR43522:SF2; TRANSKETOLASE 1-RELATED; 1.
DR Pfam; PF02779; Transket_pyr; 1.
DR Pfam; PF02780; Transketolase_C; 1.
DR Pfam; PF00456; Transketolase_N; 1.
DR SMART; SM00861; Transket_pyr; 1.
DR SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
DR SUPFAM; SSF52922; TK C-terminal domain-like; 1.
DR PROSITE; PS00801; TRANSKETOLASE_1; 1.
DR PROSITE; PS00802; TRANSKETOLASE_2; 1.
PE 3: Inferred from homology;
KW Calcium {ECO:0000256|RuleBase:RU004996};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|RuleBase:RU004996};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU004996};
KW Reference proteome {ECO:0000313|Proteomes:UP000001568};
KW Thiamine pyrophosphate {ECO:0000256|ARBA:ARBA00023052,
KW ECO:0000256|RuleBase:RU004996};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU004996}.
FT DOMAIN 370..544
FT /note="Transketolase-like pyrimidine-binding"
FT /evidence="ECO:0000259|SMART:SM00861"
SQ SEQUENCE 679 AA; 72602 MW; 515A3DED9EB03C2A CRC64;
MSAKVVTRAA VAAPPGVSAD TVNDAINTVR FLAIDAINKS NSGHPGLPMG CAPMGYVIFR
EAMTHNPKNT KWFNRDRFVL SAGHGCMLQY SLMHLTGYPS VSIEDIKQFR QWDSKTPGHP
ENFITDGIEV TTGPLGMGIC NAVGLAMVEK HLAGRFNKPD CEIVDHYTYC VMGDGCNMEG
MSGEGASLAG HWGLGKLIVF YDDNHISIDG HTDISFTEDV VARFNAYGWH TQHVENGNTD
VDSIRAAVNA AKADPRPSLI KVTTLIGYGS PNKSNTHDVH GAPLGKDETA ATRENLKWKY
GEFEVPEAVK AYMDCSEKGT AAEAEWNAKW ATYKSKYAED AAELESIMSG KLPSGWEKSL
PTFTPEDKGV ATRIHSQTML NALGGAIPGF MGGSADLAPS NMTLMKQFGD FQKDTPAERN
VRFGVREHGM GAIANGMKLH SPGIIPYCAT FFIFTDYMRC AMRIAALSQA GTIFVMTHDS
IGVGEDGPTH QPIEHVASFR AMPGMDMARP ADGNETAAMY KMAVENSMNG APTTLALSRQ
VVPNLAGTSM EGAAKGAYVV QGAAAGEACD VILIGTGTEL ELACQAGAEL ESKGKKVRVV
SMPCWEAFER QPAAYQESVL PAAMRAKTVS IEAGTTFGWA KYAGASIGHD DFGASAPAPI
LYKQFGITAD AMAAKAMSL
//
