ID A0A238IXZ3_9RHOB Unreviewed; 671 AA.
AC A0A238IXZ3;
DT 25-OCT-2017, integrated into UniProtKB/TrEMBL.
DT 25-OCT-2017, sequence version 1.
DT 27-MAR-2024, entry version 21.
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 Name=tktB {ECO:0000313|EMBL:SMX23359.1};
GN ORFNames=BOA8489_01465 {ECO:0000313|EMBL:SMX23359.1};
OS Boseongicola aestuarii.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae; Boseongicola.
OX NCBI_TaxID=1470561 {ECO:0000313|EMBL:SMX23359.1, ECO:0000313|Proteomes:UP000201838};
RN [1] {ECO:0000313|EMBL:SMX23359.1, ECO:0000313|Proteomes:UP000201838}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CECT 8489 {ECO:0000313|EMBL:SMX23359.1,
RC ECO:0000313|Proteomes:UP000201838};
RA Song R., Chenine A.L., Ruprecht R.M.;
RL Submitted (MAY-2017) to the EMBL/GenBank/DDBJ databases.
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=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}.
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DR EMBL; FXXQ01000003; SMX23359.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A238IXZ3; -.
DR Proteomes; UP000201838; Unassembled WGS sequence.
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:UP000201838};
KW Thiamine pyrophosphate {ECO:0000256|ARBA:ARBA00023052,
KW ECO:0000256|RuleBase:RU004996};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU004996}.
FT DOMAIN 357..528
FT /note="Transketolase-like pyrimidine-binding"
FT /evidence="ECO:0000259|SMART:SM00861"
SQ SEQUENCE 671 AA; 72578 MW; 717205A6D412E9C2 CRC64;
MTRHQEVHQT DASELANALR FLAADSVEKA KSGHPGMPLG MADLATVLFT KHLKFDVKNP
EWPDRDRFIL SNGHGSMLQY SLLHLLGYEG ATIKELQRFR QLHARTAGHP ELGYLPGIET
TTGPLGQGLG NSVGFALGER MMNADFGDDL VDHRTWVFCG DGCLMEGVGQ EAISLAGHLK
LSKLTLVFDD NRTTIDGATS VATSENHAAR FAAANWRVLH ADGHDHDDIN EAMTEAKTSD
QPTVIIARTR IGFGAPTKEG KSIVHGSPLG PDELAGLRKN LNWPHEPFVI PEPIKNKWRS
AGVAGATERL AWQDRLKGIS PATREKFERR ISGKFPPTLE AEVKAAIKSA VATPTAAPIR
KGSLAATAVL QNSMPELVGG SADLTGSVLT KPDNMQLVVP GEYAGRHVGY GIREHVMAAT
MNGLALHGGF FPYGGTYLTF SDYCRPSIRM AAIMNIRVVF LFSHDSIGVG EDGPTHQPIE
QLASLRAIPN LRVYRPADGV EALECWLDAA LHSGPSAMVV ARQAVEPVRR VERPDMPSRR
GGYVLQEARE KRDLTLIATG SEVDLAIRTA ALLEKSNINA AIVSLPCWET FDVQDQSYRD
AVLGTGPRYA IEAALPMGWG RYVGSEENVF GVPSFGMSGP GPQVYAEMGL IPETIAESIL
NRLGAKQSVT A
//
