ID   TYPH_ECODH              Reviewed;         440 AA.
AC   B1XFJ2;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   27-MAR-2024, entry version 91.
DE   RecName: Full=Thymidine phosphorylase {ECO:0000255|HAMAP-Rule:MF_01628};
DE            EC=2.4.2.4 {ECO:0000255|HAMAP-Rule:MF_01628};
DE   AltName: Full=TdRPase {ECO:0000255|HAMAP-Rule:MF_01628};
GN   Name=deoA {ECO:0000255|HAMAP-Rule:MF_01628};
GN   OrderedLocusNames=ECDH10B_4540;
OS   Escherichia coli (strain K12 / DH10B).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=316385;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / DH10B;
RX   PubMed=18245285; DOI=10.1128/jb.01695-07;
RA   Durfee T., Nelson R., Baldwin S., Plunkett G. III, Burland V., Mau B.,
RA   Petrosino J.F., Qin X., Muzny D.M., Ayele M., Gibbs R.A., Csorgo B.,
RA   Posfai G., Weinstock G.M., Blattner F.R.;
RT   "The complete genome sequence of Escherichia coli DH10B: insights into the
RT   biology of a laboratory workhorse.";
RL   J. Bacteriol. 190:2597-2606(2008).
CC   -!- FUNCTION: The enzymes which catalyze the reversible phosphorolysis of
CC       pyrimidine nucleosides are involved in the degradation of these
CC       compounds and in their utilization as carbon and energy sources, or in
CC       the rescue of pyrimidine bases for nucleotide synthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_01628}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + thymidine = 2-deoxy-alpha-D-ribose 1-phosphate +
CC         thymine; Xref=Rhea:RHEA:16037, ChEBI:CHEBI:17748, ChEBI:CHEBI:17821,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57259; EC=2.4.2.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01628};
CC   -!- PATHWAY: Pyrimidine metabolism; dTMP biosynthesis via salvage pathway;
CC       dTMP from thymine: step 1/2. {ECO:0000255|HAMAP-Rule:MF_01628}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01628}.
CC   -!- SIMILARITY: Belongs to the thymidine/pyrimidine-nucleoside
CC       phosphorylase family. {ECO:0000255|HAMAP-Rule:MF_01628}.
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DR   EMBL; CP000948; ACB05310.1; -; Genomic_DNA.
DR   RefSeq; WP_000477807.1; NC_010473.1.
DR   AlphaFoldDB; B1XFJ2; -.
DR   SMR; B1XFJ2; -.
DR   KEGG; ecd:ECDH10B_4540; -.
DR   HOGENOM; CLU_025040_0_1_6; -.
DR   UniPathway; UPA00578; UER00638.
DR   GO; GO:0004645; F:1,4-alpha-oligoglucan phosphorylase activity; IEA:InterPro.
DR   GO; GO:0016154; F:pyrimidine-nucleoside phosphorylase activity; IEA:InterPro.
DR   GO; GO:0009032; F:thymidine phosphorylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006206; P:pyrimidine nucleobase metabolic process; IEA:InterPro.
DR   GO; GO:0046104; P:thymidine metabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.1030.10; Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain; 1.
DR   Gene3D; 3.90.1170.30; Pyrimidine nucleoside phosphorylase-like, C-terminal domain; 1.
DR   HAMAP; MF_01628; Thymid_phosp; 1.
DR   InterPro; IPR000312; Glycosyl_Trfase_fam3.
DR   InterPro; IPR017459; Glycosyl_Trfase_fam3_N_dom.
DR   InterPro; IPR036320; Glycosyl_Trfase_fam3_N_dom_sf.
DR   InterPro; IPR035902; Nuc_phospho_transferase.
DR   InterPro; IPR036566; PYNP-like_C_sf.
DR   InterPro; IPR013102; PYNP_C.
DR   InterPro; IPR018090; Pyrmidine_PPas_bac/euk.
DR   InterPro; IPR017872; Pyrmidine_PPase_CS.
DR   InterPro; IPR000053; Thymidine/pyrmidine_PPase.
DR   InterPro; IPR013465; Thymidine_Pase.
DR   NCBIfam; TIGR02643; T_phosphoryl; 1.
DR   NCBIfam; TIGR02644; Y_phosphoryl; 1.
DR   PANTHER; PTHR10515; THYMIDINE PHOSPHORYLASE; 1.
DR   PANTHER; PTHR10515:SF0; THYMIDINE PHOSPHORYLASE; 1.
DR   Pfam; PF02885; Glycos_trans_3N; 1.
DR   Pfam; PF00591; Glycos_transf_3; 1.
DR   Pfam; PF07831; PYNP_C; 1.
DR   PIRSF; PIRSF000478; TP_PyNP; 1.
DR   SMART; SM00941; PYNP_C; 1.
DR   SUPFAM; SSF52418; Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain; 1.
DR   SUPFAM; SSF47648; Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain; 1.
DR   SUPFAM; SSF54680; Pyrimidine nucleoside phosphorylase C-terminal domain; 1.
DR   PROSITE; PS00647; THYMID_PHOSPHORYLASE; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Transferase.
FT   CHAIN           1..440
FT                   /note="Thymidine phosphorylase"
FT                   /id="PRO_1000186256"
SQ   SEQUENCE   440 AA;  47207 MW;  1DB3083C9275D2ED CRC64;
     MFLAQEIIRK KRDGHALSDE EIRFFINGIR DNTISEGQIA ALAMTIFFHD MTMPERVSLT
     MAMRDSGTVL DWKSLHLNGP IVDKHSTGGV GDVTSLMLGP MVAACGGYIP MISGRGLGHT
     GGTLDKLESI PGFDIFPDDN RFREIIKDVG VAIIGQTSSL APADKRFYAT RDITATVDSI
     PLITASILAK KLAEGLDALV MDVKVGSGAF MPTYELSEAL AEAIVGVANG AGVRTTALLT
     DMNQVLASSA GNAVEVREAV QFLTGEYRNP RLFDVTMALC VEMLISGKLA KDDAEARAKL
     QAVLDNGKAA EVFGRMVAAQ KGPTDFVENY AKYLPTAMLT KAVYADTEGF VSEMDTRALG
     MAVVAMGGGR RQASDTIDYS VGFTDMARLG DQVDGQRPLA VIHAKDENNW QEAAKAVKAA
     IKLADKAPES TPTVYRRISE
//