ID I2B6P2_SHIBC Unreviewed; 664 AA.
AC I2B6P2; K6W0X9;
DT 11-JUL-2012, integrated into UniProtKB/TrEMBL.
DT 11-JUL-2012, sequence version 1.
DT 27-MAR-2024, entry version 67.
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:AFJ46196.1};
GN OrderedLocusNames=EBL_c10860 {ECO:0000313|EMBL:AFJ46196.1};
OS Shimwellia blattae (strain ATCC 29907 / DSM 4481 / JCM 1650 / NBRC 105725 /
OS CDC 9005-74) (Escherichia blattae).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Shimwellia.
OX NCBI_TaxID=630626 {ECO:0000313|EMBL:AFJ46196.1, ECO:0000313|Proteomes:UP000001955};
RN [1] {ECO:0000313|EMBL:AFJ46196.1, ECO:0000313|Proteomes:UP000001955}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 29907 / DSM 4481 / JCM 1650 / NBRC 105725 / CDC 9005-74
RC {ECO:0000313|Proteomes:UP000001955};
RX PubMed=22843577; DOI=10.1128/JB.00829-12;
RA Brzuszkiewicz E., Waschkowitz T., Wiezer A., Daniel R.;
RT "Complete genome sequence of the B12-producing Shimwellia blattae strain
RT DSM 4481, isolated from a cockroach.";
RL J. Bacteriol. 194:4436-4436(2012).
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|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; CP001560; AFJ46196.1; -; Genomic_DNA.
DR RefSeq; WP_002441258.1; NZ_BAHA01000012.1.
DR AlphaFoldDB; I2B6P2; -.
DR STRING; 630626.EBL_c10860; -.
DR KEGG; ebt:EBL_c10860; -.
DR PATRIC; fig|630626.3.peg.1051; -.
DR eggNOG; COG0021; Bacteria.
DR HOGENOM; CLU_009227_0_0_6; -.
DR OrthoDB; 8732661at2; -.
DR Proteomes; UP000001955; 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:SF13; TRANSKETOLASE 2; 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:UP000001955};
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..525
FT /note="Transketolase-like pyrimidine-binding"
FT /evidence="ECO:0000259|SMART:SM00861"
SQ SEQUENCE 664 AA; 73134 MW; 3CF22799BABB232E CRC64;
MSSRQRIANA IRALSMDAVQ KANSGHPGAP MGMADIAEVL WNDFHRHNPA NPHWYNRDRF
VLSNGHASML LYSLLHLSGY ELPMEELRQF RQLHSRTPGH PEYGLTPGVE TTTGPLGQGL
ANAVGMAIAE RTLAAQFNRP GYDIVDHHTW VFMGDGCLME GISHEACSLA GTLGLGKLIG
FYDSNGISID GHTDGWFTDD TALRFEAYHW HVIRDIDGHD PLAIKKAINQ AKAVTDKPSL
LICRTVIGFG SPNKAGKEEA HGAPLGEEEV ALARKQLGWE FPPFTIPEEI YHAWDARERG
AQAERQWNAL YASWQQAHPD LAADFGRRMA GQLPPEWPQL SQRYIAQLQA TPASIASRKA
SQNTLNAFGP HLPELLGGSA DLAPSNLTIW SGSRELLTHQ DGNYIHYGVR EFGMTAIANG
IALHGGFIPY SATFLMFVEY ARNAARMAAL MKARQIMVYT HDSIGLGEDG PTHQAVEQLA
SLRLTPGFST WRPCDQVETA VAWSRALERQ DGPTALILSR QNLTQMPRTP EQLEAISRGG
YILRPCATRP DLLLIATGSE VEITMQAAEQ LSREGVAVQV VSMPSTDTFD RQDQAWKDQV
LPPEVERVIA VEAGIADYWY KYTGRKGAVI GMTTFGESAP AAKLFPFFGF TTENIVNHAR
KLLA
//
