Incidental Mutation 'R7553: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 #R7553 (G1)
Quality Score225.009
Status Validated
Chromosomal Location41029275-41059523 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to T at 41029487 bp
Amino Acid Change Arginine to Tryptophan at position 17 (R17W)
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 damaging
Transcript: ENSMUST00000051806
AA Change: R17W

PolyPhen 2 Score 0.990 (Sensitivity: 0.72; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000062078
Gene: ENSMUSG00000025014
AA Change: R17W

BRCT 29 114 3.05e-9 SMART
POLXc 163 529 5.68e-196 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000112200
AA Change: R17W

PolyPhen 2 Score 0.987 (Sensitivity: 0.73; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000107819
Gene: ENSMUSG00000025014
AA Change: R17W

BRCT 29 114 3.05e-9 SMART
POLXc 163 509 1.19e-198 SMART
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 99.1%
Validation Efficiency 98% (62/63)
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: 66 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcc6 A G 7: 45,999,121 L649P probably damaging Het
Acad10 T C 5: 121,639,255 Y371C probably damaging Het
Avp A G 2: 130,581,178 V71A probably damaging Het
Bhmt C T 13: 93,620,081 probably null Het
Capn15 T C 17: 25,960,764 E874G probably damaging Het
Capn5 A G 7: 98,124,024 F591S probably damaging Het
Ccne2 A T 4: 11,201,348 Q292L probably benign Het
Cd96 T G 16: 46,052,021 T406P probably damaging Het
Csnk1e G A 15: 79,426,366 A153V probably damaging Het
Dlk1 G A 12: 109,454,963 V15I unknown Het
Dmbt1 A G 7: 131,104,867 N1372S unknown Het
Erich3 G T 3: 154,733,500 A260S probably benign Het
Foxp2 C T 6: 15,437,882 S669L unknown Het
Gm9268 T G 7: 43,048,023 C835G probably damaging Het
Grid2 A G 6: 64,076,941 K375E possibly damaging Het
Grin2b C T 6: 135,772,396 G603S possibly damaging Het
Hexb C T 13: 97,198,173 R30Q probably benign Het
Homer3 A T 8: 70,290,124 T162S probably benign Het
L3mbtl1 A G 2: 162,948,231 E15G probably benign Het
Manea A T 4: 26,327,986 F352I probably damaging Het
Mcf2l T A 8: 12,997,268 M210K probably benign Het
Morc3 T C 16: 93,870,936 L734P probably damaging Het
Mybpc2 A G 7: 44,506,147 V894A possibly damaging Het
Myh4 T A 11: 67,256,395 M1622K probably damaging Het
Myrf A G 19: 10,228,876 F59L probably benign Het
Ndst3 G T 3: 123,557,060 probably null Het
Nos3 A T 5: 24,381,717 D986V possibly damaging Het
Nrp1 G A 8: 128,431,987 A252T probably damaging Het
Nup205 G T 6: 35,201,999 R668L probably damaging Het
Olfr313 T A 11: 58,817,060 D17E probably benign Het
Olfr477 G A 7: 107,990,475 V37I probably benign Het
Olfr612 T C 7: 103,539,156 Y26C probably damaging Het
Pcdhga1 T A 18: 37,749,682 probably null Het
Pck1 A G 2: 173,157,067 I373V probably benign Het
Pde8b T C 13: 95,086,750 N227S probably benign Het
Pianp T G 6: 124,999,251 S8A unknown Het
Pla2r1 A T 2: 60,522,899 N239K possibly damaging Het
Pls1 T A 9: 95,787,087 N27I probably damaging Het
Prep T C 10: 45,158,524 *711Q probably null Het
Prkag3 A G 1: 74,744,735 F330L probably damaging Het
Prss56 A G 1: 87,183,539 D16G probably benign Het
Rad17 A T 13: 100,633,286 F255Y probably damaging Het
Rap1gap2 T C 11: 74,435,722 E173G probably damaging Het
Retreg3 C T 11: 101,106,390 R88H possibly damaging Het
Rhag G A 17: 40,828,395 G74R probably damaging Het
Rybp A G 6: 100,232,259 S201P possibly damaging Het
S100a10 G A 3: 93,564,295 C62Y probably benign Het
Scgb2b3 T A 7: 31,360,248 S34C possibly damaging Het
Serpind1 A G 16: 17,336,675 D122G probably benign Het
Setdb1 A G 3: 95,346,765 L242P probably damaging Het
Slc14a2 T A 18: 78,155,588 I776F probably damaging Het
Slc9a1 A G 4: 133,412,269 E266G probably damaging Het
Stard9 A T 2: 120,693,808 probably null Het
Stpg2 A G 3: 139,218,337 Y167C probably damaging Het
Tex264 T C 9: 106,659,136 E274G probably damaging Het
Tigd2 G A 6: 59,211,579 S477N probably benign Het
Urb1 A G 16: 90,792,864 L343P probably damaging Het
Vars2 A T 17: 35,664,788 C246S possibly damaging Het
Vil1 G A 1: 74,426,732 probably null Het
Vmn2r61 C G 7: 42,266,781 L273V not run Het
Zfp37 C A 4: 62,191,999 G317V probably damaging Het
Zfp760 A G 17: 21,722,891 K349R possibly damaging Het
Zyx A T 6: 42,350,474 E69V probably null 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
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 On2019-10-17