ID A0A1G5QJB5_9GAMM Unreviewed; 664 AA.
AC A0A1G5QJB5;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 27-MAR-2024, entry version 23.
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=SAMN03097708_02202 {ECO:0000313|EMBL:SCZ61792.1};
OS Thiohalomonas denitrificans.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Thiohalomonadales;
OC Thiohalomonadaceae; Thiohalomonas.
OX NCBI_TaxID=415747 {ECO:0000313|EMBL:SCZ61792.1, ECO:0000313|Proteomes:UP000199648};
RN [1] {ECO:0000313|EMBL:SCZ61792.1, ECO:0000313|Proteomes:UP000199648}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HLD2 {ECO:0000313|EMBL:SCZ61792.1,
RC ECO:0000313|Proteomes:UP000199648};
RA de Groot N.N.;
RL Submitted (OCT-2016) 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=Ca(2+); Xref=ChEBI:CHEBI:29108;
CC Evidence={ECO:0000256|ARBA:ARBA00001913};
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}.
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DR EMBL; FMWD01000006; SCZ61792.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1G5QJB5; -.
DR STRING; 415747.SAMN03097708_02202; -.
DR OrthoDB; 8732661at2; -.
DR Proteomes; UP000199648; 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:UP000199648};
KW Thiamine pyrophosphate {ECO:0000256|ARBA:ARBA00023052,
KW ECO:0000256|RuleBase:RU004996};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU004996}.
FT DOMAIN 355..526
FT /note="Transketolase-like pyrimidine-binding"
FT /evidence="ECO:0000259|SMART:SM00861"
SQ SEQUENCE 664 AA; 72473 MW; A50599A7BCBB8B38 CRC64;
MPSRKDLANA IRALSMDAVQ KANSGHPGAP MGMADIAEVL WNDHLKHNPT NPDWHDRDRF
ILSNGHGSML TYSLLHLTGY DLSMEDLKNF RQLHSKTPGH PEYGYAPGVE TTTGPLGQGI
TNGVGMALAE RTLGAQFNRG THKIVDHYTY VFMGDGCMME GISHESCALA GTWGLGKLIA
FWDDNGISID GHVENWFTDD TPKRFEAYGW HVVRDVDGHD ADAINKAIHE AKSVNDKPTL
ICCKTVIGYG APNLCGSHDC HGAPLGGDEI QATRENLGWN HGPFEIPDDI YGGWNAKEKG
ASAESHWQEK FDAYKKEFPE LAAEFERRMK GELPANWKET VNGWIQTANE KAEKVASRKA
SGNTIAAFAK ALPELLGGSA DLTPSNNTSW PEATAITRTV ADGNYISYGV REFGMSAILN
GVALHGGFVA FGGTFLMFSE YARNALRMAA LMKQRSIFVY THDSIGLGED GPTHQPVEQI
ATLRLIPNMT LWRPCDQVET AIAWQSAVER MDGPSCLIFS RQGLPHMERS NEQIADIARG
GYVLRDCEGT PEAIIIATGS EVELAVQAFD ELSGKGKKVR VVSMPSTNLF DSQDPAYRES
VLPAAVTARV AVEAGVTDFW RKYVGLNGDV IGVDRFGESA PADQLFKEFG ITAENVVKAV
ENVL
//
