Incidental Mutation 'R4703:Dntt'
ID356256
Institutional Source Beutler Lab
Gene Symbol Dntt
Ensembl Gene ENSMUSG00000025014
Gene Namedeoxynucleotidyltransferase, terminal
SynonymsTdt
MMRRC Submission 041951-MU
Accession Numbers

Genbank: NM_009345 ; MGI: 98659

Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R4703 (G1)
Quality Score225
Status Validated
Chromosome19
Chromosomal Location41029275-41059523 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 41039803 bp
ZygosityHeterozygous
Amino Acid Change Aspartic acid to Glutamic Acid at position 179 (D179E)
Ref Sequence ENSEMBL: ENSMUSP00000107819 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000051806] [ENSMUST00000112200]
Predicted Effect probably benign
Transcript: ENSMUST00000051806
AA Change: D179E

PolyPhen 2 Score 0.003 (Sensitivity: 0.98; Specificity: 0.44)
SMART Domains Protein: ENSMUSP00000062078
Gene: ENSMUSG00000025014
AA Change: D179E

DomainStartEndE-ValueType
BRCT 29 114 3.05e-9 SMART
POLXc 163 529 5.68e-196 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000112200
AA Change: D179E

PolyPhen 2 Score 0.003 (Sensitivity: 0.98; Specificity: 0.44)
SMART Domains Protein: ENSMUSP00000107819
Gene: ENSMUSG00000025014
AA Change: D179E

DomainStartEndE-ValueType
BRCT 29 114 3.05e-9 SMART
POLXc 163 509 1.19e-198 SMART
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 97.0%
  • 20x: 94.6%
Validation Efficiency 97% (98/101)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene is a member of the DNA polymerase type-X family and encodes a template-independent DNA polymerase that catalyzes the addition of deoxynucleotides to the 3'-hydroxyl terminus of oligonucleotide primers. In vivo, the encoded protein is expressed in a restricted population of normal and malignant pre-B and pre-T lymphocytes during early differentiation, where it generates antigen receptor diversity by synthesizing non-germ line elements (N-regions) at the junctions of rearranged Ig heavy chain and T cell receptor gene segments. Alternatively spliced transcript variants encoding different isoforms of this gene have been described. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygous inactivation of this gene results in lack of "N" nucleotide insertions at the junctions of immunoglobulin and T cell receptor V(D)J rearrangements. Forced expression of terminal deoxynucleotidyl transferase in fetal thymus leads to decreased gamma-delta T cell number. [provided by MGI curators]
Allele List at MGI

All alleles(4) : Targeted, knock-out(2) Targeted, other(2)

Other mutations in this stock
Total: 89 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4921517D22Rik T A 13: 59,689,528 T248S possibly damaging Het
AA986860 T C 1: 130,743,355 V438A probably benign Het
Adam25 G T 8: 40,754,126 C143F probably damaging Het
Aox2 T A 1: 58,358,957 F1286I possibly damaging Het
Apobec4 A G 1: 152,756,250 T10A probably benign Het
Arhgap5 C T 12: 52,517,583 P446S probably damaging Het
Arhgef40 A G 14: 52,002,310 N1327S probably damaging Het
Armc12 A G 17: 28,532,362 D110G probably benign Het
Ascc1 A G 10: 60,049,802 Y225C probably damaging Het
Aspscr1 A T 11: 120,688,945 K39N possibly damaging Het
B4galnt1 G T 10: 127,167,525 V172F possibly damaging Het
B4galt1 A G 4: 40,823,569 V174A probably benign Het
Bcl11a C A 11: 24,163,725 A356E possibly damaging Het
Bri3bp C T 5: 125,451,766 L110F probably damaging Het
Cacna1b T C 2: 24,654,463 D1231G probably damaging Het
Ccdc33 T A 9: 58,033,670 I430F possibly damaging Het
Cgn A G 3: 94,776,095 probably benign Het
Crbn T A 6: 106,782,922 I317F possibly damaging Het
Cyp2d22 A C 15: 82,375,917 L22R probably damaging Het
Dnah7a C T 1: 53,447,317 probably null Het
Dnajc12 A G 10: 63,386,650 probably null Het
Enam T A 5: 88,503,791 L1053* probably null Het
Epn1 T A 7: 5,095,148 D319E probably damaging Het
Evpl C G 11: 116,222,505 R1453P probably damaging Het
Focad T A 4: 88,342,321 probably null Het
Foxp2 A T 6: 15,411,248 M542L probably benign Het
Gak T A 5: 108,569,877 Q1299L probably damaging Het
Galnt5 G T 2: 57,998,907 R173I possibly damaging Het
Gli1 G T 10: 127,330,855 P843Q possibly damaging Het
Gm5422 G T 10: 31,249,612 noncoding transcript Het
Gna14 T G 19: 16,598,980 V117G possibly damaging Het
Gpr6 T C 10: 41,071,041 T182A probably damaging Het
Ifi204 C A 1: 173,760,361 probably benign Het
Ifih1 A T 2: 62,598,876 L906H probably benign Het
Ift88 A G 14: 57,480,850 probably benign Het
Ighd A G 12: 113,416,041 probably benign Het
Ighv11-1 A C 12: 113,982,002 I77R possibly damaging Het
Il22 A T 10: 118,205,606 I75F probably damaging Het
Il23r A T 6: 67,490,702 I27K probably damaging Het
Inpp5a A C 7: 139,558,923 N261T probably damaging Het
Ints8 T G 4: 11,223,785 Q686P possibly damaging Het
Iqcf4 T C 9: 106,568,320 probably null Het
Irf2bp1 C T 7: 19,005,571 R379C possibly damaging Het
Iws1 C T 18: 32,080,013 P165S probably benign Het
Kalrn T C 16: 34,203,957 D610G probably damaging Het
Kcna10 A T 3: 107,194,610 I186F probably benign Het
Limk2 C A 11: 3,347,586 E329* probably null Het
Nadk C A 4: 155,585,227 P157T probably benign Het
Notch1 T G 2: 26,471,158 K1107Q probably benign Het
Nsd1 T A 13: 55,214,063 D281E probably damaging Het
Olfml2a T A 2: 38,951,238 L262Q probably damaging Het
Olfr1294 T A 2: 111,537,768 I174L probably benign Het
Olfr231 A G 1: 174,117,398 I206T possibly damaging Het
Olfr371 A G 8: 85,230,608 T38A possibly damaging Het
Olfr374 T A 8: 72,110,200 F211L probably damaging Het
Olfr557 A T 7: 102,698,270 T11S probably benign Het
Otogl A C 10: 107,821,924 D1048E probably damaging Het
Oxnad1 T C 14: 32,095,470 W96R probably damaging Het
Pcdh15 A T 10: 74,450,163 D743V probably damaging Het
Pclo A G 5: 14,676,480 probably benign Het
Pcnx C T 12: 81,895,164 T112I probably benign Het
Pctp T C 11: 89,987,273 E145G possibly damaging Het
Pip5k1b T C 19: 24,355,153 K389R probably damaging Het
Pla2g15 T A 8: 106,163,059 M321K probably benign Het
Pnlip T A 19: 58,676,467 D242E probably damaging Het
Ptpn21 T C 12: 98,679,392 T1096A probably benign Het
Rims3 A T 4: 120,883,297 probably benign Het
Rnf219 A G 14: 104,506,208 L145P probably benign Het
Scfd2 T A 5: 74,519,595 Q299L probably benign Het
Selplg T C 5: 113,819,033 D404G probably benign Het
Slc15a5 T C 6: 138,055,645 D237G probably benign Het
Slc16a12 T A 19: 34,674,891 H285L possibly damaging Het
Sox2 C A 3: 34,650,713 R100S probably damaging Het
Sspo G A 6: 48,500,453 C4969Y probably damaging Het
Stxbp2 A G 8: 3,632,521 S37G probably damaging Het
Tbxas1 T C 6: 39,083,857 probably null Het
Tcf4 A G 18: 69,657,910 Y307C probably damaging Het
Thsd7b A T 1: 130,049,909 probably benign Het
Tnn G T 1: 160,116,245 D999E possibly damaging Het
Trmt13 C A 3: 116,594,598 W63L probably benign Het
Tsc2 T C 17: 24,604,909 N915S probably benign Het
Tyrp1 T A 4: 80,840,806 probably null Het
Uvrag A T 7: 98,989,587 I315N probably damaging Het
Vmn1r31 C A 6: 58,471,968 *304L probably null Het
Vmn2r59 T A 7: 42,012,262 I710L probably benign Het
Vmn2r82 A T 10: 79,378,807 H208L probably damaging Het
Wtap T C 17: 12,980,824 T91A probably benign Het
Xirp1 A T 9: 120,017,027 V930E probably damaging Het
Xpo4 T G 14: 57,590,108 H877P probably benign Het
Other mutations in Dntt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00827:Dntt APN 19 41039823 missense probably benign 0.01
IGL01531:Dntt APN 19 41053238 nonsense probably null
IGL01859:Dntt APN 19 41037304 missense probably benign
IGL02053:Dntt APN 19 41046274 missense probably benign 0.00
IGL02411:Dntt APN 19 41052985 splice site probably null
IGL03180:Dntt APN 19 41029551 missense probably benign 0.09
R0106:Dntt UTSW 19 41055746 splice site probably benign
R0122:Dntt UTSW 19 41053038 missense possibly damaging 0.95
R0194:Dntt UTSW 19 41038970 missense possibly damaging 0.90
R0266:Dntt UTSW 19 41059127 missense probably damaging 0.99
R0377:Dntt UTSW 19 41047627 nonsense probably null
R0412:Dntt UTSW 19 41042933 missense probably damaging 1.00
R0604:Dntt UTSW 19 41053149 missense probably benign 0.01
R1350:Dntt UTSW 19 41037139 splice site probably benign
R1577:Dntt UTSW 19 41055785 missense probably damaging 1.00
R1677:Dntt UTSW 19 41029484 missense probably benign 0.26
R2567:Dntt UTSW 19 41041336 missense possibly damaging 0.81
R4380:Dntt UTSW 19 41053233 missense probably damaging 1.00
R4999:Dntt UTSW 19 41039856 missense probably damaging 0.99
R6257:Dntt UTSW 19 41053062 missense probably damaging 1.00
R6757:Dntt UTSW 19 41037162 missense probably damaging 1.00
R7340:Dntt UTSW 19 41058565 critical splice acceptor site probably null
R7388:Dntt UTSW 19 41038979 missense probably benign 0.01
R7553:Dntt UTSW 19 41029487 missense probably damaging 0.99
R7806:Dntt UTSW 19 41029632 missense probably benign 0.02
YA93:Dntt UTSW 19 41053187 missense probably benign
Z1177:Dntt UTSW 19 41055815 missense not run
Predicted Primers PCR Primer
(F):5'- GTTCAGTGACAGAGTCCCACAG -3'
(R):5'- GAGGAGAGAGCCCATACTTATGC -3'

Sequencing Primer
(F):5'- CCACAGGGGAGGATGCAAAG -3'
(R):5'- GAGAGCCCATACTTATGCGATCTG -3'
Posted On2015-10-21