Incidental Mutation 'R7806: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 #R7806 (G1)
Quality Score225.009
Status Validated
Chromosomal Location41029275-41059523 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to T at 41029632 bp
Amino Acid Change Asparagine to Isoleucine at position 65 (N65I)
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: N65I

PolyPhen 2 Score 0.016 (Sensitivity: 0.95; Specificity: 0.79)
SMART Domains Protein: ENSMUSP00000062078
Gene: ENSMUSG00000025014
AA Change: N65I

BRCT 29 114 3.05e-9 SMART
POLXc 163 529 5.68e-196 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000112200
AA Change: N65I

PolyPhen 2 Score 0.006 (Sensitivity: 0.97; Specificity: 0.75)
SMART Domains Protein: ENSMUSP00000107819
Gene: ENSMUSG00000025014
AA Change: N65I

BRCT 29 114 3.05e-9 SMART
POLXc 163 509 1.19e-198 SMART
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.8%
  • 20x: 99.3%
Validation Efficiency 98% (83/85)
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
2810004N23Rik C A 8: 124,842,404 V144F probably benign Het
Aar2 T A 2: 156,551,111 I140N possibly damaging Het
Abca15 A G 7: 120,332,836 N104S probably damaging Het
Adam22 A T 5: 8,092,825 N803K probably damaging Het
Adk A G 14: 21,326,611 N26S Het
Ak9 A C 10: 41,433,084 probably null Het
Alpk2 T C 18: 65,349,416 D40G probably benign Het
Ankrd65 A T 4: 155,792,980 H316L probably benign Het
Cabp7 C T 11: 4,738,889 A194T probably damaging Het
Ccdc180 A C 4: 45,912,801 K593N possibly damaging Het
Cd80 A G 16: 38,473,953 D66G probably benign Het
Cdh5 T C 8: 104,140,816 V575A probably damaging Het
Cep350 T C 1: 155,862,063 Q2678R probably benign Het
Cideb G A 14: 55,755,168 T97M probably damaging Het
Clca4b T C 3: 144,932,396 D35G probably benign Het
Clpx T C 9: 65,299,931 V37A probably benign Het
Cmya5 A C 13: 93,094,262 S1439R probably benign Het
Cndp2 T A 18: 84,670,820 H279L probably benign Het
Cngb1 A T 8: 95,298,804 probably null Het
Cpq T A 15: 33,497,297 N394K possibly damaging Het
Dedd T C 1: 171,338,494 L60P probably benign Het
Dennd3 C A 15: 73,570,775 L1216M possibly damaging Het
Fap T A 2: 62,503,414 E662V probably damaging Het
Fasn A T 11: 120,809,995 M2066K probably benign Het
Fggy G A 4: 95,600,966 G69E probably benign Het
Foxc1 G T 13: 31,808,756 G517C unknown Het
Gas2l3 A G 10: 89,413,370 Y629H probably benign Het
Gcnt2 A G 13: 40,918,241 N120S probably damaging Het
Gfpt2 A G 11: 49,823,315 T300A probably benign Het
Glud1 A G 14: 34,343,649 R535G probably damaging Het
Gm3248 T A 14: 5,943,883 I114L probably benign Het
Gm3278 G A 14: 4,895,172 probably null Het
Gm3402 A C 5: 146,514,280 K44Q probably damaging Het
Gm3696 C G 14: 7,087,893 R188S probably benign Het
Gm3696 C A 14: 7,087,894 R188M probably benign Het
Gmppa T C 1: 75,438,937 L113P probably damaging Het
Gmps A G 3: 63,982,670 probably null Het
Gnal T A 18: 67,213,074 M275K probably damaging Het
Gopc G C 10: 52,353,429 N231K probably damaging Het
Gpr152 T C 19: 4,143,488 S343P probably benign Het
Gpr17 T C 18: 31,947,540 I157V probably benign Het
Grm7 T A 6: 111,246,353 Y451* probably null Het
Ikbke T C 1: 131,271,898 E286G probably damaging Het
Inpp5b A T 4: 124,785,088 probably null Het
Iqgap2 G A 13: 95,682,257 L664F probably benign Het
Kif17 A G 4: 138,288,196 E552G possibly damaging Het
Lamtor1 T A 7: 101,906,013 Y5* probably null Het
Lpin2 A G 17: 71,245,171 I829V probably damaging Het
Lrg1 T G 17: 56,119,967 D335A probably benign Het
Lrriq3 T C 3: 155,098,807 Y35H probably damaging Het
Mkx T A 18: 7,000,607 M112L probably benign Het
Mlxipl A C 5: 135,134,543 D760A possibly damaging Het
Muc6 T C 7: 141,637,474 T2429A possibly damaging Het
N4bp2l2 A G 5: 150,643,250 C134R unknown Het
Nanos1 A G 19: 60,756,534 E90G probably benign Het
Nckap1 T C 2: 80,541,499 D329G probably damaging Het
Olfr112 A C 17: 37,564,221 L30R probably damaging Het
Olfr46 T C 7: 140,610,772 I194T probably benign Het
Olfr876 T C 9: 37,804,576 S222P probably damaging Het
Olfr919 G T 9: 38,698,271 L32I probably benign Het
Osbpl7 A G 11: 97,056,128 H419R probably benign Het
Otog C T 7: 46,285,776 T1395I probably benign Het
Pigq T A 17: 25,931,726 I451F probably benign Het
Ptgfrn A G 3: 101,077,132 V248A possibly damaging Het
Rdh19 G T 10: 127,856,871 V136L probably damaging Het
Rfesd T C 13: 76,008,189 T33A possibly damaging Het
Rnf213 G A 11: 119,411,545 V432M Het
Rpl22l1 T A 3: 28,806,813 L60Q probably benign Het
Rsf1 CGGCGGCGG CGGCGGCGGGGGCGGCGG 7: 97,579,920 probably benign Het
Samd3 A G 10: 26,244,527 T140A probably benign Het
Sbf1 A G 15: 89,305,420 V419A possibly damaging Het
Serpinb6a T C 13: 33,935,565 probably null Het
Slc22a4 A G 11: 53,990,650 L414P probably damaging Het
Smarcd3 A T 5: 24,593,262 V420D probably benign Het
Tcaim A G 9: 122,834,930 D495G probably damaging Het
Tcrg-C2 A T 13: 19,307,220 probably benign Het
Tep1 A G 14: 50,836,809 V1873A possibly damaging Het
Tmcc2 T C 1: 132,360,789 N387D probably damaging Het
Tmed8 A T 12: 87,172,430 I322N probably damaging Het
Tmod4 A C 3: 95,127,604 D168A probably benign Het
Trp53bp1 C T 2: 121,205,061 E1520K probably damaging Het
Trpv5 T A 6: 41,674,933 I183F probably damaging Het
Vmn2r70 A T 7: 85,559,193 I692K probably benign Het
Vmn2r87 T A 10: 130,479,810 Y129F probably benign Het
Vps8 A G 16: 21,459,751 D253G probably damaging Het
Ythdc2 T C 18: 44,844,286 I383T possibly damaging Het
Ythdc2 T C 18: 44,850,424 S553P probably benign Het
Zfyve26 A G 12: 79,280,355 probably null Het
Zic1 G A 9: 91,364,971 T16I 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
R7388:Dntt UTSW 19 41038979 missense probably benign 0.01
R7553:Dntt UTSW 19 41029487 missense probably damaging 0.99
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 On2019-11-26