Incidental Mutation 'R7388:Dntt'
Institutional Source Beutler Lab
Gene Symbol Dntt
Ensembl Gene ENSMUSG00000025014
Gene Namedeoxynucleotidyltransferase, terminal
MMRRC Submission
Accession Numbers

Genbank: NM_009345 ; MGI: 98659

Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R7388 (G1)
Quality Score225.009
Status Validated
Chromosomal Location41029275-41059523 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to G at 41038979 bp
Amino Acid Change Asparagine to Aspartic acid at position 162 (N162D)
Ref Sequence ENSEMBL: ENSMUSP00000062078 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000051806] [ENSMUST00000112200]
PDB Structure Crystal Structure of the Catalytic Core of Murine Terminal Deoxynucleotidyl Transferase [X-RAY DIFFRACTION]
Binary Complex of Murine Terminal Deoxynucleotidyl Transferase with a Primer Single Stranded DNA [X-RAY DIFFRACTION]
Crystal Structure of Murine Terminal Deoxynucleotidyl Transferase complexed with ddATP [X-RAY DIFFRACTION]
Ternary complex of mouse TdT with ssDNA and incoming nucleotide [X-RAY DIFFRACTION]
Binary complex of mouse TdT with ssDNA and Zn++ [X-RAY DIFFRACTION]
Binary complex of mouse TdT with ssDNA and Mn++ [X-RAY DIFFRACTION]
Binary complex of mouse TdT with ssDNA in absence of divalent transition metal ion [X-RAY DIFFRACTION]
Ternary complex of mouse TdT with ssDNA and AMPcPP [X-RAY DIFFRACTION]
Ternary complex of mouse TdT with ssDNA and AMPcPP [X-RAY DIFFRACTION]
Binary complex of mouse TdT with AMPcPP [X-RAY DIFFRACTION]
>> 10 additional structures at PDB <<
Predicted Effect probably benign
Transcript: ENSMUST00000051806
AA Change: N162D

PolyPhen 2 Score 0.011 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000062078
Gene: ENSMUSG00000025014
AA Change: N162D

BRCT 29 114 3.05e-9 SMART
POLXc 163 529 5.68e-196 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000112200
AA Change: N162D

PolyPhen 2 Score 0.002 (Sensitivity: 0.99; Specificity: 0.30)
SMART Domains Protein: ENSMUSP00000107819
Gene: ENSMUSG00000025014
AA Change: N162D

BRCT 29 114 3.05e-9 SMART
POLXc 163 509 1.19e-198 SMART
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 100.0%
  • 10x: 99.8%
  • 20x: 99.3%
Validation Efficiency 100% (63/63)
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: 63 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700013F07Rik T C 3: 108,543,499 F86L possibly damaging Het
Afg3l2 T C 18: 67,422,953 E436G probably damaging Het
Agbl5 T A 5: 30,903,239 L759* probably null Het
Ankrd13b T C 11: 77,472,757 D460G probably benign Het
Apol10a A G 15: 77,489,025 D287G possibly damaging Het
Arhgap44 A T 11: 65,024,268 Y391* probably null Het
Asz1 G T 6: 18,074,901 S271R probably benign Het
AW554918 A G 18: 25,340,113 N325D probably benign Het
Brinp2 A T 1: 158,255,009 L247Q probably damaging Het
Casz1 A G 4: 148,952,393 D1704G unknown Het
Cdk5rap1 G A 2: 154,360,675 R212W probably damaging Het
Cdkl2 T A 5: 92,019,459 T444S probably benign Het
Cers2 T G 3: 95,321,345 F160V probably benign Het
Cga T A 4: 34,907,076 M99K probably benign Het
Cspp1 C T 1: 10,065,347 R138* probably null Het
Dao T G 5: 114,015,212 *133E probably null Het
Ddx1 A T 12: 13,225,455 C544S probably null Het
Dgkq A T 5: 108,658,246 V98E probably damaging Het
Dnah6 T A 6: 73,192,317 T434S possibly damaging Het
Dpysl5 T C 5: 30,745,461 V79A probably benign Het
E130309D02Rik G A 5: 143,311,845 A149V probably benign Het
Ep300 T C 15: 81,648,366 C1602R unknown Het
Flrt3 C T 2: 140,661,752 probably null Het
Gk2 A G 5: 97,456,898 V27A probably damaging Het
Gm11639 T C 11: 104,721,045 L571P probably damaging Het
Gnpat T G 8: 124,887,814 M663R probably benign Het
Hc A T 2: 34,984,847 probably null Het
Il12rb1 A G 8: 70,810,627 Y67C probably damaging Het
Kmt2b C T 7: 30,581,960 D1229N probably damaging Het
Lamc1 T C 1: 153,249,076 T650A probably damaging Het
Lrp1 G A 10: 127,583,897 R948* probably null Het
Map3k21 T C 8: 125,927,597 I385T probably damaging Het
Mmrn1 T A 6: 60,976,252 S506T probably benign Het
Nlrp1a A G 11: 71,123,197 F409S probably damaging Het
Nlrp3 T A 11: 59,565,066 I896N probably benign Het
Noxred1 C A 12: 87,227,025 V81L probably damaging Het
Nrcam A T 12: 44,598,489 I1225F probably damaging Het
Olfr30 C T 11: 58,455,655 C98Y probably damaging Het
Otos T A 1: 92,644,519 probably null Het
Pcdh20 A G 14: 88,468,667 I399T probably benign Het
Pkhd1 C T 1: 20,239,304 V2807I not run Het
Prrx2 A G 2: 30,880,890 E235G probably damaging Het
Rab13 T C 3: 90,221,020 I41T probably damaging Het
Rai1 A C 11: 60,189,375 T1422P possibly damaging Het
Rcn1 C T 2: 105,391,991 V217M probably damaging Het
Scn2a T A 2: 65,688,654 V408E probably damaging Het
Sec16a C T 2: 26,428,364 A121T Het
Slc35d1 A G 4: 103,189,785 probably null Het
Slc39a6 A T 18: 24,584,049 V642E probably damaging Het
Slc6a19 G A 13: 73,693,084 A69V probably benign Het
Spink6 A T 18: 44,082,319 T79S probably damaging Het
Spire1 T C 18: 67,519,880 D170G probably damaging Het
Sugp1 T C 8: 70,052,619 S79P probably damaging Het
Syne3 A G 12: 104,967,908 Y201H probably damaging Het
Tbc1d10a T C 11: 4,205,858 probably null Het
Tmem14a C T 1: 21,229,511 Q122* probably null Het
Tmem161b C A 13: 84,222,418 probably benign Het
Trmt61a A G 12: 111,678,887 I86V possibly damaging Het
Tubgcp4 G A 2: 121,189,966 probably null Het
Vmn1r79 T A 7: 12,176,741 Y183* probably null Het
Vmn2r11 A T 5: 109,054,876 W112R probably benign Het
Vpreb1 T C 16: 16,868,652 K125E probably benign Het
Wdr6 A T 9: 108,574,772 F637L probably damaging 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
R4703:Dntt UTSW 19 41039803 missense probably benign 0.00
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
R7553:Dntt UTSW 19 41029487 missense probably damaging 0.99
R7806:Dntt UTSW 19 41029632 missense probably benign 0.02
R8145:Dntt UTSW 19 41055785 missense probably damaging 1.00
YA93:Dntt UTSW 19 41053187 missense probably benign
Z1177:Dntt UTSW 19 41055815 missense probably damaging 1.00
Predicted Primers PCR Primer

Sequencing Primer
Posted On2019-09-13