Incidental Mutation 'R0666:Tpmt'
Institutional Source Beutler Lab
Gene Symbol Tpmt
Ensembl Gene ENSMUSG00000021376
Gene Namethiopurine methyltransferase
MMRRC Submission 038851-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R0666 (G1)
Quality Score72
Status Validated
Chromosomal Location47022482-47044737 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) C to A at 47032454 bp
Amino Acid Change Glycine to Valine at position 148 (G148V)
Ref Sequence ENSEMBL: ENSMUSP00000121827 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000021806] [ENSMUST00000110118] [ENSMUST00000136864] [ENSMUST00000154802] [ENSMUST00000224970]
Predicted Effect probably damaging
Transcript: ENSMUST00000021806
AA Change: G148V

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000021806
Gene: ENSMUSG00000021376
AA Change: G148V

Pfam:TPMT 19 240 4.1e-84 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000110118
AA Change: G148V

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000105745
Gene: ENSMUSG00000021376
AA Change: G148V

Pfam:TPMT 19 205 8.8e-73 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000136864
AA Change: G148V

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000120081
Gene: ENSMUSG00000021376
AA Change: G148V

Pfam:TPMT 19 188 3.6e-65 PFAM
Predicted Effect unknown
Transcript: ENSMUST00000151509
AA Change: G167V
SMART Domains Protein: ENSMUSP00000120564
Gene: ENSMUSG00000021376
AA Change: G167V

Pfam:TPMT 19 73 3.3e-20 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000154802
AA Change: G148V

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000121827
Gene: ENSMUSG00000021376
AA Change: G148V

Pfam:TPMT 19 182 2.9e-62 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000224970
Meta Mutation Damage Score 0.574 question?
Coding Region Coverage
  • 1x: 99.4%
  • 3x: 98.9%
  • 10x: 97.7%
  • 20x: 95.7%
Validation Efficiency 100% (89/89)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes the enzyme that metabolizes thiopurine drugs via S-adenosyl-L-methionine as the S-methyl donor and S-adenosyl-L-homocysteine as a byproduct. Thiopurine drugs such as 6-mercaptopurine are used as chemotherapeutic agents. Genetic polymorphisms that affect this enzymatic activity are correlated with variations in sensitivity and toxicity to such drugs within individuals, causing thiopurine S-methyltransferase deficiency. Related pseudogenes have been identified on chromosomes 3, 18 and X. [provided by RefSeq, Aug 2014]
PHENOTYPE: Homozygous and heterozygous mutation of this gene results in increased sensitivity to mercaptopurine. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 79 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2610507B11Rik T G 11: 78,287,987 M2026R probably damaging Het
2610507B11Rik T A 11: 78,277,212 L1491* probably null Het
Akap6 T A 12: 52,911,808 V782E probably damaging Het
Atg9a A G 1: 75,185,090 L604P probably damaging Het
Atp1a3 T C 7: 24,990,549 I482V probably benign Het
Ccdc105 C A 10: 78,750,547 L223F probably benign Het
Ccdc18 T G 5: 108,163,664 V412G probably benign Het
Cct6a A G 5: 129,794,386 noncoding transcript Het
Clpx A G 9: 65,310,225 N25S probably damaging Het
Cnpy2 T A 10: 128,327,025 C171* probably null Het
Cntnap3 C T 13: 64,757,397 D857N probably damaging Het
Col5a1 A G 2: 28,032,685 Y255C probably damaging Het
Coro7 A T 16: 4,631,911 F638Y possibly damaging Het
Cpd A G 11: 76,782,327 F1331L probably damaging Het
Csmd1 A T 8: 16,069,049 I1842N possibly damaging Het
Dgkg T A 16: 22,562,730 D490V probably damaging Het
Dnah9 A T 11: 66,085,458 M1255K probably benign Het
E2f1 A G 2: 154,560,929 V306A probably benign Het
Entpd1 A G 19: 40,659,906 probably benign Het
Esrrb T A 12: 86,505,902 I222N probably benign Het
Fam159b G T 13: 104,858,354 T95K possibly damaging Het
Flt4 G T 11: 49,625,447 A126S possibly damaging Het
Galnt11 C T 5: 25,252,147 T237I possibly damaging Het
Gbf1 A G 19: 46,262,544 probably benign Het
Gm20388 A T 8: 122,270,988 probably benign Het
Gm7030 T C 17: 36,127,834 T222A possibly damaging Het
Herc1 T A 9: 66,484,888 probably benign Het
Hsph1 T C 5: 149,631,502 Y105C probably damaging Het
Il23r T C 6: 67,434,680 T358A probably benign Het
Il2ra C T 2: 11,643,073 probably benign Het
Kbtbd4 G T 2: 90,914,115 probably benign Het
Kcnt1 A G 2: 25,891,243 probably benign Het
Kng2 A G 16: 22,997,122 probably benign Het
Lap3 C T 5: 45,511,928 T473I possibly damaging Het
Lrrk2 T C 15: 91,757,070 probably null Het
Map1s A G 8: 70,914,052 N534D possibly damaging Het
Mtg1 G A 7: 140,144,344 V122I probably benign Het
Myadm T A 7: 3,297,349 I209K probably damaging Het
Ntsr2 G A 12: 16,653,980 V75I probably benign Het
Olfr1037 G A 2: 86,085,213 A188V probably benign Het
Olfr1272 A T 2: 90,281,868 S236T probably damaging Het
Pfn1 T C 11: 70,654,366 T39A probably benign Het
Pipox T A 11: 77,883,825 K144M probably benign Het
Plekhh1 G A 12: 79,069,115 E811K probably damaging Het
Pnpla3 T A 15: 84,179,305 W295R probably benign Het
Prkacb T A 3: 146,751,518 T136S probably damaging Het
Ralbp1 T A 17: 65,854,129 N473I probably benign Het
Rbp4 G A 19: 38,118,460 T127M probably damaging Het
Rif1 GCCACCA GCCA 2: 52,110,324 probably benign Het
Rps3a1 G A 3: 86,138,117 probably benign Het
Scg3 G T 9: 75,643,940 Y429* probably null Het
Spag5 T C 11: 78,313,396 S492P probably damaging Het
St7 T A 6: 17,934,239 M540K probably damaging Het
Stxbp3 C A 3: 108,805,302 V281F possibly damaging Het
Sun5 A G 2: 153,859,048 V242A possibly damaging Het
Susd5 G T 9: 114,095,784 R245L possibly damaging Het
Syne2 A G 12: 75,923,013 E954G probably damaging Het
Synpo2 A T 3: 123,114,059 V536E probably damaging Het
Tas2r140 T C 6: 133,055,442 I118V probably benign Het
Tbx18 C A 9: 87,724,409 V228L probably benign Het
Tdrd9 T A 12: 112,007,580 probably benign Het
Tg T C 15: 66,737,521 M310T probably benign Het
Ticam2 T A 18: 46,560,651 D123V probably damaging Het
Timm23 A G 14: 32,199,036 probably benign Het
Tinag C T 9: 77,005,687 R280H probably benign Het
Topbp1 G A 9: 103,308,812 R51K probably benign Het
Tor1b A G 2: 30,953,913 I121V probably damaging Het
Tubb1 A G 2: 174,457,755 E410G probably damaging Het
Ubash3b C A 9: 41,047,064 V7L possibly damaging Het
Ube2o C T 11: 116,542,835 E686K probably damaging Het
Unc13d T A 11: 116,069,492 probably benign Het
Vmn1r183 A T 7: 24,055,176 M135L probably benign Het
Wisp3 T C 10: 39,151,289 R316G probably benign Het
Xkr8 T C 4: 132,732,338 Y43C probably damaging Het
Zc3h4 T A 7: 16,434,772 N935K unknown Het
Zc3h7a G A 16: 11,156,303 probably benign Het
Zfp84 C T 7: 29,776,851 H323Y probably damaging Het
Zfp873 G T 10: 82,060,761 S442I possibly damaging Het
Zfp938 A G 10: 82,225,772 L338P probably damaging Het
Other mutations in Tpmt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL02865:Tpmt APN 13 47025402 missense probably benign 0.16
friedrice UTSW 13 47032454 missense probably damaging 1.00
R0826:Tpmt UTSW 13 47041489 missense probably benign 0.10
R1373:Tpmt UTSW 13 47027258 unclassified probably null
R1640:Tpmt UTSW 13 47027283 nonsense probably null
R5644:Tpmt UTSW 13 47028959 missense probably benign 0.41
R6086:Tpmt UTSW 13 47035030 missense probably damaging 0.99
R6228:Tpmt UTSW 13 47027259 missense probably benign 0.00
R6372:Tpmt UTSW 13 47035894 critical splice donor site probably null
Predicted Primers PCR Primer

Sequencing Primer
(F):5'- acttgggacacatttctttgac -3'
Posted On2014-08-21