ID E9FQ64_9STRE Unreviewed; 658 AA.
AC E9FQ64;
DT 05-APR-2011, integrated into UniProtKB/TrEMBL.
DT 05-APR-2011, sequence version 1.
DT 27-MAR-2024, entry version 56.
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=tkt {ECO:0000313|EMBL:EFX57896.1};
GN ORFNames=HMPREF0851_01946 {ECO:0000313|EMBL:EFX57896.1};
OS Streptococcus sp. M334.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=563038 {ECO:0000313|EMBL:EFX57896.1, ECO:0000313|Proteomes:UP000003840};
RN [1] {ECO:0000313|EMBL:EFX57896.1, ECO:0000313|Proteomes:UP000003840}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=M334 {ECO:0000313|EMBL:EFX57896.1,
RC ECO:0000313|Proteomes:UP000003840};
RG The Broad Institute Genome Sequencing Platform;
RA Ward D., Earl A., Feldgarden M., Gevers D., Young S., Zeng Q., Koehrsen M.,
RA Alvarado L., Berlin A.M., Borenstein D., Chapman S.B., Chen Z., Engels R.,
RA Freedman E., Gellesch M., Goldberg J., Griggs A., Gujja S., Heilman E.R.,
RA Heiman D.I., Hepburn T.A., Howarth C., Jen D., Larson L., Mehta T.,
RA Park D., Pearson M., Richards J., Roberts A., Saif S., Shea T.D.,
RA Shenoy N., Sisk P., Stolte C., Sykes S.N., Walk T., White J., Yandava C.,
RA Sibley C.D., Field T.R., Grinwis M., Eshaghurshan C.S., Surette M.G.,
RA Haas B., Nusbaum C., Birren B.;
RT "The Genome Sequence of Streptococcus sp. M334.";
RL Submitted (MAR-2010) 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; GL732494; EFX57896.1; -; Genomic_DNA.
DR RefSeq; WP_000067884.1; NZ_GL732494.1.
DR AlphaFoldDB; E9FQ64; -.
DR eggNOG; COG0021; Bacteria.
DR HOGENOM; CLU_009227_0_0_9; -.
DR OrthoDB; 8732661at2; -.
DR Proteomes; UP000003840; 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 Thiamine pyrophosphate {ECO:0000256|ARBA:ARBA00023052,
KW ECO:0000256|RuleBase:RU004996};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU004996}.
FT DOMAIN 351..522
FT /note="Transketolase-like pyrimidine-binding"
FT /evidence="ECO:0000259|SMART:SM00861"
SQ SEQUENCE 658 AA; 71032 MW; F183AA880C33F0E4 CRC64;
MSNLSVNAIR FLGIDAINKA NSGHPGVVMG AAPMAYSLFT KQLRINPAQP NWINRDRFIL
SAGHGSMLLY ALLHLSGFED VSMDEIKSFR QWGSKTPGHP EFGHTAGIDA TTGPLGQGIS
TATGFAQAER FLAAKYNREG YNIFDHYTYV ICGDGDLMEG VSSEAASYAG LQKLDKLVVL
YDSNDINLDG ETKDSFTESV RDRYNAYGWH TALVEDGTDL EAIHAAIETA KASGKPSLIE
VKTVIGYGSP NKQGTNAVHG APLGADETAA TRQALGWDYE PFEIPEQVYA DFKEHVADRG
ASAYQAWTKL VADYKEAHPE LAAEVEAIID GRDPVEVTPA DFPALENGFS QATRNSSQDA
LNVVAAKLPT FLGGSADLAH SNMTYIKTDG LQDDANRLNR NIQFGVREFA MGTILNGMAL
HGGLRVYGGT FFVFSDYVKA AVRLSALQGL PVTYVFTHDS IAVGEDGPTH EPVEHLAGLR
AMPNLNVFRP ADARETQAAW YLAVTSEKTP TALVLTRQNL TVEEGTDFDK VAKGAYVVYE
NASDFDTILI ATGSEVNLAV AAAKELASQG GKVRVVSMPS TDVFDKQDAT YKEEILPNAV
RRRVAVEMGA SQNWYKYVGL DGAVLGIDTF GASAPAPKVL AEYGFTVENL VKVVQNLK
//
