ID Q39ZA0_GEOMG Unreviewed; 668 AA.
AC Q39ZA0;
DT 22-NOV-2005, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2005, sequence version 1.
DT 27-MAR-2024, entry version 117.
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:ABB30424.1};
GN OrderedLocusNames=Gmet_0178 {ECO:0000313|EMBL:ABB30424.1};
OS Geobacter metallireducens (strain ATCC 53774 / DSM 7210 / GS-15).
OC Bacteria; Thermodesulfobacteriota; Desulfuromonadia; Geobacterales;
OC Geobacteraceae; Geobacter.
OX NCBI_TaxID=269799 {ECO:0000313|EMBL:ABB30424.1, ECO:0000313|Proteomes:UP000007073};
RN [1] {ECO:0000313|EMBL:ABB30424.1, ECO:0000313|Proteomes:UP000007073}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 53774 / DSM 7210 / GS-15
RC {ECO:0000313|Proteomes:UP000007073};
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Di Bartolo G., Chain P., Schmutz J.,
RA Larimer F., Land M., Kyrpides N., Ivanova N., Richardson P.;
RT "Complete sequence of Geobacter metallireducens GS-15.";
RL Submitted (OCT-2005) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ABB30424.1, ECO:0000313|Proteomes:UP000007073}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 53774 / DSM 7210 / GS-15
RC {ECO:0000313|Proteomes:UP000007073};
RX PubMed=19473543; DOI=10.1186/1471-2180-9-109;
RA Aklujkar M., Krushkal J., DiBartolo G., Lapidus A., Land M.L., Lovley D.R.;
RT "The genome sequence of Geobacter metallireducens: features of metabolism,
RT physiology and regulation common and dissimilar to Geobacter
RT sulfurreducens.";
RL BMC Microbiol. 9:109-109(2009).
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; CP000148; ABB30424.1; -; Genomic_DNA.
DR RefSeq; WP_004512765.1; NC_007517.1.
DR AlphaFoldDB; Q39ZA0; -.
DR STRING; 269799.Gmet_0178; -.
DR KEGG; gme:Gmet_0178; -.
DR eggNOG; COG0021; Bacteria.
DR HOGENOM; CLU_009227_0_0_7; -.
DR Proteomes; UP000007073; 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:UP000007073};
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 668 AA; 72304 MW; 2DE8DA8477D217E3 CRC64;
MSAPVLTSED ARLGADTLRM LAVDAVEAAN SGHPGLPMGA ADYAFLLWHS HLRFAPTDPE
WAGRDRFVLS AGHGSMLLYS LLHLFGFDLP LDELKRFRQW GSRTPGHPEF GHTPGVEVTT
GPLGQGFAMG VGMALAARMA SARFADERFD PCGHQVYAIV SDGDLMEGIS QEAASLAGHL
KLGNIVYIYD DNRITIEGST DLAFSDDTAG RFTALGWQVQ KVDGHDIGQV GEALWRAKVE
RDRPSLIIAR THIAQGSPGK HDTAAAHGSP LGAEEAAATR RNLGWPDELF HVPERVREIC
DKRREELVAA YAAWEDEFRR WRRRNPDKAR LWDGMWQKAI PKDLETRLLA AVEGSTGATR
ALSGKVIQAA AAAMPALAGG SADLEPSTNT WIAESPSVLA GSYRGRNLHF GIREHAMAAV
MNGMARYGCF IPYGATFLVF SDYCRPSIRL AALMKQQAIY VFTHDSIFLG EDGPTHQPVE
QLSSLRLIPN LRVIRPADGP ETALAWNAAL RRADGPTALI LTRQKVPAIM REEPLDAKTF
AKGGYAVRQD GATPDVVIMA SGSEVGLALA AADILAGEGV TARVVSVPSL ETFLAQPEAY
RRRLLPGRVP RVAVEAGHGG LWWRLLGPGG LFIGMEGFGA SAPEKVLAEQ FGFTPPQVAQ
RVRELVGR
//
