Q3BCR2 (TPMT_PANTI) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Thiopurine S-methyltransferase
EC=2.1.1.67

Alternative name(s):
Thiopurine methyltransferase

Gene names

Name:

TPMT

Organism

Panthera tigris (Tiger)

Taxonomic identifier

9694 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Laurasiatheria › Carnivora › Feliformia › Felidae › Pantherinae › Panthera

Protein attributes

Sequence length	245 AA.
Sequence status	Complete.
Protein existence	Evidence at transcript level

General annotation (Comments)

Function	Catalyzes the S-methylation of thiopurine drugs such as 6-mercaptopurine.
Catalytic activity	S-adenosyl-L-methionine + a thiopurine = S-adenosyl-L-homocysteine + a thiopurine S-methylether.
Subunit structure	Monomer By similarity.
Subcellular location	Cytoplasm.
Sequence similarities	Belongs to the methyltransferase superfamily. TPMT family.

Ontologies

Keywords
Cellular component	Cytoplasm
Ligand	S-adenosyl-L-methionine
Molecular function	Methyltransferase Transferase
PTM	Acetylation Phosphoprotein
Gene Ontology (GO)
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	thiopurine S-methyltransferase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 245	245	Thiopurine S-methyltransferase		PRO_0000220109
Sites
	Binding site	33	1	S-adenosyl-L-methionine By similarity
	Binding site	69	1	S-adenosyl-L-methionine; via carbonyl oxygen By similarity
	Binding site	90	1	S-adenosyl-L-methionine By similarity
	Binding site	152	1	S-adenosyl-L-methionine By similarity
Amino acid modifications
	Modified residue	14	1	Phosphoserine By similarity
	Modified residue	58	1	N6-acetyllysine By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q3BCR2 [UniParc]. Last modified November 22, 2005. Version 1. Checksum: 54D14598B121CA41	FASTA	245	28,293
	10 20 30 40 50 60 MDDASTLIDV KEYSDTEVQK NRVLTLEEWR EKWVDGKIGF HQEQGHQLLK KHLDTFLKGE 70 80 90 100 110 120 NVLRVFFPLC GKAVEMKWFA DRGHCVVGVE ISELGIREFF TEQNLSYSEE PIMEIPGAKV 130 140 150 160 170 180 FKSSSGNISL YCCNLFDLPR VNIGKFDRIW DRGALVAVNP GDRKCYTDIM LSLTRKGFRY 190 200 210 220 230 240 LLAVLSYDPT KHPGPPFYVP DAEIKNLFGS TCNIHCLEKV DVFEERHKSW GIDYIVEKLY LLTEK

References

[1]	"Thiopurine S-methyltransferase pharmacogenetics: variant allele functional and comparative genomics." Salavaggione O.E., Wang L., Wiepert M., Yee V.C., Weinshilboum R.M. Pharmacogenet. Genomics 15:801-815(2005) [PubMed: 16220112] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	AY827080 mRNA. Translation: AAX37644.1.
3D structure databases
ProteinModelPortal	Q3BCR2.
SMR	Q3BCR2. Positions 17-245.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Phylogenomic databases
HOVERGEN	HBG003037.
Family and domain databases
InterPro	IPR008854. Thiopurine_S-MeTrfase. IPR016822. Thiopurine_S-MeTrfase_sub. [Graphical view]
PANTHER	PTHR10259. PTHR10259. 1 hit.
Pfam	PF05724. TPMT. 1 hit. [Graphical view]
PIRSF	PIRSF023956. Thiopurine_S-methyltransferase. 1 hit.
ProtoNet	Search...

Entry information

Entry name

TPMT_PANTI

Accession

Primary (citable) accession number: Q3BCR2

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 20, 2005
Last sequence update:	November 22, 2005
Last modified:	October 19, 2011
This is version 29 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Chordata Protein Annotation Program