ID   TPMT_METCA              Reviewed;         222 AA.
AC   Q60AQ2;
DT   13-SEP-2005, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Thiopurine S-methyltransferase {ECO:0000255|HAMAP-Rule:MF_00812};
DE            EC=2.1.1.67 {ECO:0000255|HAMAP-Rule:MF_00812};
DE   AltName: Full=Thiopurine methyltransferase {ECO:0000255|HAMAP-Rule:MF_00812};
GN   Name=tpm {ECO:0000255|HAMAP-Rule:MF_00812}; OrderedLocusNames=MCA0794;
OS   Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Methylococcales;
OC   Methylococcaceae; Methylococcus.
OX   NCBI_TaxID=243233;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33009 / NCIMB 11132 / Bath;
RX   PubMed=15383840; DOI=10.1371/journal.pbio.0020303;
RA   Ward N.L., Larsen O., Sakwa J., Bruseth L., Khouri H.M., Durkin A.S.,
RA   Dimitrov G., Jiang L., Scanlan D., Kang K.H., Lewis M.R., Nelson K.E.,
RA   Methe B.A., Wu M., Heidelberg J.F., Paulsen I.T., Fouts D.E., Ravel J.,
RA   Tettelin H., Ren Q., Read T.D., DeBoy R.T., Seshadri R., Salzberg S.L.,
RA   Jensen H.B., Birkeland N.K., Nelson W.C., Dodson R.J., Grindhaug S.H.,
RA   Holt I.E., Eidhammer I., Jonasen I., Vanaken S., Utterback T.R.,
RA   Feldblyum T.V., Fraser C.M., Lillehaug J.R., Eisen J.A.;
RT   "Genomic insights into methanotrophy: the complete genome sequence of
RT   Methylococcus capsulatus (Bath).";
RL   PLoS Biol. 2:1616-1628(2004).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=S-adenosyl-L-methionine + a thiopurine = S-adenosyl-L-
CC         homocysteine + a thiopurine S-methylether.; EC=2.1.1.67;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00812};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00812}.
CC   -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC       superfamily. TPMT family. {ECO:0000255|HAMAP-Rule:MF_00812}.
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DR   EMBL; AE017282; AAU92905.1; -; Genomic_DNA.
DR   RefSeq; WP_010960120.1; NC_002977.6.
DR   AlphaFoldDB; Q60AQ2; -.
DR   SMR; Q60AQ2; -.
DR   STRING; 243233.MCA0794; -.
DR   EnsemblBacteria; AAU92905; AAU92905; MCA0794.
DR   KEGG; mca:MCA0794; -.
DR   eggNOG; COG0500; Bacteria.
DR   HOGENOM; CLU_085515_1_0_6; -.
DR   OMA; LWCGDFF; -.
DR   OrthoDB; 2049098at2; -.
DR   Proteomes; UP000006821; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008119; F:thiopurine S-methyltransferase activity; ISS:JCVI.
DR   GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR   GO; GO:0010038; P:response to metal ion; IEA:InterPro.
DR   GO; GO:0046690; P:response to tellurium ion; ISS:JCVI.
DR   Gene3D; 3.40.50.150; -; 1.
DR   HAMAP; MF_00812; Thiopur_methtran; 1.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   InterPro; IPR022474; Thiopur_S-MeTfrase_Se/Te_detox.
DR   InterPro; IPR025835; Thiopurine_S-MeTrfase.
DR   InterPro; IPR008854; TPMT.
DR   Pfam; PF05724; TPMT; 1.
DR   PIRSF; PIRSF023956; Thiopurine_S-methyltransferase; 1.
DR   SUPFAM; SSF53335; SSF53335; 1.
DR   TIGRFAMs; TIGR03840; TMPT_Se_Te; 1.
DR   PROSITE; PS51585; SAM_MT_TPMT; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Reference proteome; S-adenosyl-L-methionine;
KW   Transferase.
FT   CHAIN           1..222
FT                   /note="Thiopurine S-methyltransferase"
FT                   /id="PRO_0000220124"
FT   BINDING         10
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00812"
FT   BINDING         45
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00812"
FT   BINDING         66
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00812"
FT   BINDING         124
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00812"
SQ   SEQUENCE   222 AA;  24942 MW;  C81BB45D0AE9C291 CRC64;
     MDPDFWHERW RQKQTGFHQT QVNPLLETFW PRCVGPARPR VFVPLCGKSL DMVWLRNRGH
     SVLGNELSPI AVDEFFRENG LSAVTTPLGN GFVRAESGDI SLLCGNYFDL TPDLIGKVGA
     IYDRAALVAM PPEMQGRYAE QVFRLLPETP PMLLITLEYD AEEMSGPPFP VPEEAVVRLF
     GPAYRIELLS ARDALEGNPQ LRAKGLSRLT EKAYWLRAQA SA