ID Q97KH5_CLOAB Unreviewed; 662 AA.
AC Q97KH5;
DT 01-OCT-2001, integrated into UniProtKB/TrEMBL.
DT 01-OCT-2001, sequence version 1.
DT 27-MAR-2024, entry version 142.
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:AAK78920.1};
GN OrderedLocusNames=CA_C0944 {ECO:0000313|EMBL:AAK78920.1};
OS Clostridium acetobutylicum (strain ATCC 824 / DSM 792 / JCM 1419 / LMG 5710
OS / VKM B-1787).
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Clostridiaceae;
OC Clostridium.
OX NCBI_TaxID=272562 {ECO:0000313|EMBL:AAK78920.1, ECO:0000313|Proteomes:UP000000814};
RN [1] {ECO:0000313|EMBL:AAK78920.1, ECO:0000313|Proteomes:UP000000814}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 824 / DSM 792 / JCM 1419 / LMG 5710 / VKM B-1787
RC {ECO:0000313|Proteomes:UP000000814};
RX PubMed=11466286; DOI=10.1128/JB.183.16.4823-4838.2001;
RA Nolling J., Breton G., Omelchenko M.V., Makarova K.S., Zeng Q., Gibson R.,
RA Lee H.M., Dubois J., Qiu D., Hitti J., Wolf Y.I., Tatusov R.L., Sabathe F.,
RA Doucette-Stamm L., Soucaille P., Daly M.J., Bennett G.N., Koonin E.V.,
RA Smith D.R.;
RT "Genome sequence and comparative analysis of the solvent-producing
RT bacterium Clostridium acetobutylicum.";
RL J. Bacteriol. 183:4823-4838(2001).
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; AE001437; AAK78920.1; -; Genomic_DNA.
DR PIR; E97016; E97016.
DR RefSeq; NP_347580.1; NC_003030.1.
DR RefSeq; WP_010964262.1; NC_003030.1.
DR AlphaFoldDB; Q97KH5; -.
DR STRING; 272562.CA_C0944; -.
DR GeneID; 44997454; -.
DR KEGG; cac:CA_C0944; -.
DR PATRIC; fig|272562.8.peg.1154; -.
DR eggNOG; COG0021; Bacteria.
DR HOGENOM; CLU_009227_0_0_9; -.
DR OrthoDB; 8732661at2; -.
DR Proteomes; UP000000814; Chromosome.
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:UP000000814};
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 662 AA; 72707 MW; 9B1E722347B73BEE CRC64;
MNIDELSINT IRILSAEAIQ KANSGHPGTP LGAAPVAYTL WSKYLKHNPS NPKWVNRDRF
ILSAGHASML LYSLLHLFGY KISIDDLKNF RQWESITPGH PEYGVTPGVE ISTGPLGQGI
ANGVGMAIAE AHLASKFNKQ GFDIVDHYTY VLSGDGCMME GIASEAASFA GTLGLSKLIV
IYDDNDISIE GNTDIAFKEN VGERFKAYDW NVINVEDGTD VSSLSKAIEK AKQQNDKPSI
IIAKTVIGFG SPNQGTAGVH GSPLGETGVS GLKKNLNWNY EEEFYVPEEV KEHIKKLQKT
FEENESNWNE LLNKYKEKYP DLFDEFNAWM NGEVKVKLDE IDAFKELEKP MATRDSSGKA
LNIIANVVPN LIGGSADLAP SNKTYMNDKG DFSSDDRSGS NLHFGVREHA MAAIANGVSA
HGGLKIFVST FFVFSDYMKG AMRMSALMNL PVVYVLTHDS IGVGEDGPTH EPIEQLAALR
SIPNLTVLRP CDSKETVEAW KYALEREDGP TALVLTRQKL PLYNETGKGL LKGAYTLKDS
KKDVPDMLLM ASGSEVELVY EAQEELLNKG IDSRVISVPS FELFDKQDKA YKESVMPSSV
RARVAVEAAS SFGWHKYTGI DGEIISIDHF GASAPAETLF EVFGFTKENV IKTSEEVLKN
NK
//
