Incidental Mutation 'R1350:Dntt'
ID 159552
Institutional Source Beutler Lab
Gene Symbol Dntt
Ensembl Gene ENSMUSG00000025014
Gene Name deoxynucleotidyltransferase, terminal
Synonyms Tdt
MMRRC Submission 039415-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R1350 (G1)
Quality Score 225
Status Validated
Chromosome 19
Chromosomal Location 41017714-41047964 bp(+) (GRCm39)
Type of Mutation splice site
DNA Base Change (assembly) C to T at 41025578 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000107819 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000051806] [ENSMUST00000112200]
AlphaFold P09838
Predicted Effect probably benign
Transcript: ENSMUST00000051806
SMART Domains Protein: ENSMUSP00000062078
Gene: ENSMUSG00000025014

DomainStartEndE-ValueType
BRCT 29 114 3.05e-9 SMART
POLXc 163 529 5.68e-196 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000112200
SMART Domains Protein: ENSMUSP00000107819
Gene: ENSMUSG00000025014

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: 98.9%
  • 3x: 97.9%
  • 10x: 94.9%
  • 20x: 88.1%
Validation Efficiency 95% (57/60)
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: 48 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ago4 A G 4: 126,400,925 (GRCm39) V640A probably benign Het
AI661453 C T 17: 47,778,853 (GRCm39) Q860* probably null Het
Atp10d A G 5: 72,418,469 (GRCm39) probably benign Het
Axdnd1 A G 1: 156,205,950 (GRCm39) probably null Het
Bivm T A 1: 44,165,863 (GRCm39) N104K possibly damaging Het
Capn15 A G 17: 26,183,666 (GRCm39) S338P probably benign Het
Car9 G T 4: 43,512,439 (GRCm39) probably null Het
Ccn6 C T 10: 39,034,302 (GRCm39) C100Y probably damaging Het
Col13a1 G A 10: 61,729,848 (GRCm39) probably benign Het
Crb2 A G 2: 37,682,081 (GRCm39) N821D probably damaging Het
D5Ertd579e T A 5: 36,771,081 (GRCm39) I1105F probably damaging Het
Dnaja2 A T 8: 86,266,717 (GRCm39) F337I probably damaging Het
Dock3 C T 9: 106,791,831 (GRCm39) E1381K possibly damaging Het
Fibp T C 19: 5,511,419 (GRCm39) Y96H probably damaging Het
Garnl3 A G 2: 32,942,226 (GRCm39) V85A probably damaging Het
Gsdme A T 6: 50,223,108 (GRCm39) probably null Het
Gucy2c A T 6: 136,720,912 (GRCm39) probably null Het
Hectd1 A G 12: 51,809,217 (GRCm39) V1748A probably benign Het
Hepacam2 G A 6: 3,467,530 (GRCm39) Q384* probably null Het
Itga10 T A 3: 96,564,793 (GRCm39) M961K probably benign Het
Kcnk1 C T 8: 126,751,967 (GRCm39) T191I probably benign Het
Khdrbs1 G A 4: 129,614,545 (GRCm39) P336L probably benign Het
Klhdc2 T A 12: 69,352,484 (GRCm39) probably null Het
Lipc T C 9: 70,705,649 (GRCm39) H478R probably benign Het
Lrp12 A T 15: 39,741,646 (GRCm39) C356* probably null Het
Nf1 T A 11: 79,303,513 (GRCm39) C397S probably damaging Het
Nox3 A G 17: 3,700,396 (GRCm39) F439S probably damaging Het
Or12e9 T A 2: 87,202,701 (GRCm39) V275E probably benign Het
Or13a18 T C 7: 140,190,622 (GRCm39) V181A probably damaging Het
Or3a1b T C 11: 74,013,039 (GRCm39) L308P possibly damaging Het
Or4b12 A T 2: 90,096,690 (GRCm39) L28Q probably damaging Het
Or51b17 A G 7: 103,542,937 (GRCm39) W2R probably benign Het
Or7g29 T G 9: 19,286,710 (GRCm39) S156R possibly damaging Het
Or8b37 G A 9: 37,959,111 (GRCm39) V198I probably benign Het
Pcif1 T C 2: 164,728,687 (GRCm39) F288L probably damaging Het
Prxl2b C A 4: 154,982,585 (GRCm39) R107L probably damaging Het
Skint7 G T 4: 111,837,521 (GRCm39) A100S possibly damaging Het
Ssu2 A T 6: 112,351,807 (GRCm39) L306* probably null Het
Tasp1 T C 2: 139,899,341 (GRCm39) E4G probably damaging Het
Tfb1m A T 17: 3,595,955 (GRCm39) D99E probably benign Het
Ube3b A G 5: 114,544,198 (GRCm39) probably null Het
Uox A G 3: 146,330,330 (GRCm39) D162G probably damaging Het
Usp18 A G 6: 121,239,651 (GRCm39) T249A possibly damaging Het
Vmn1r202 T C 13: 22,685,886 (GRCm39) N177S probably benign Het
Vwa2 T A 19: 56,897,558 (GRCm39) M621K probably damaging Het
Wdfy3 C A 5: 102,046,418 (GRCm39) D1797Y probably damaging Het
Ylpm1 A T 12: 85,060,856 (GRCm39) probably benign Het
Zbtb9 G A 17: 27,193,380 (GRCm39) V262I probably benign Het
Other mutations in Dntt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00827:Dntt APN 19 41,028,262 (GRCm39) missense probably benign 0.01
IGL01531:Dntt APN 19 41,041,677 (GRCm39) nonsense probably null
IGL01859:Dntt APN 19 41,025,743 (GRCm39) missense probably benign
IGL02053:Dntt APN 19 41,034,713 (GRCm39) missense probably benign 0.00
IGL02411:Dntt APN 19 41,041,424 (GRCm39) splice site probably null
IGL03180:Dntt APN 19 41,017,990 (GRCm39) missense probably benign 0.09
catbird UTSW 19 41,041,672 (GRCm39) missense probably damaging 1.00
mimetic UTSW 19 41,025,578 (GRCm39) splice site probably benign
wren UTSW 19 41,044,197 (GRCm39) critical splice acceptor site probably null
R0106:Dntt UTSW 19 41,044,185 (GRCm39) splice site probably benign
R0122:Dntt UTSW 19 41,041,477 (GRCm39) missense possibly damaging 0.95
R0194:Dntt UTSW 19 41,027,409 (GRCm39) missense possibly damaging 0.90
R0266:Dntt UTSW 19 41,047,566 (GRCm39) missense probably damaging 0.99
R0377:Dntt UTSW 19 41,036,066 (GRCm39) nonsense probably null
R0412:Dntt UTSW 19 41,031,372 (GRCm39) missense probably damaging 1.00
R0604:Dntt UTSW 19 41,041,588 (GRCm39) missense probably benign 0.01
R1577:Dntt UTSW 19 41,044,224 (GRCm39) missense probably damaging 1.00
R1677:Dntt UTSW 19 41,017,923 (GRCm39) missense probably benign 0.26
R2567:Dntt UTSW 19 41,029,775 (GRCm39) missense possibly damaging 0.81
R4380:Dntt UTSW 19 41,041,672 (GRCm39) missense probably damaging 1.00
R4703:Dntt UTSW 19 41,028,242 (GRCm39) missense probably benign 0.00
R4999:Dntt UTSW 19 41,028,295 (GRCm39) missense probably damaging 0.99
R6257:Dntt UTSW 19 41,041,501 (GRCm39) missense probably damaging 1.00
R6757:Dntt UTSW 19 41,025,601 (GRCm39) missense probably damaging 1.00
R7340:Dntt UTSW 19 41,047,004 (GRCm39) critical splice acceptor site probably null
R7388:Dntt UTSW 19 41,027,418 (GRCm39) missense probably benign 0.01
R7553:Dntt UTSW 19 41,017,926 (GRCm39) missense probably damaging 0.99
R7806:Dntt UTSW 19 41,018,071 (GRCm39) missense probably benign 0.02
R8145:Dntt UTSW 19 41,044,224 (GRCm39) missense probably damaging 1.00
R8940:Dntt UTSW 19 41,046,990 (GRCm39) intron probably benign
R9085:Dntt UTSW 19 41,044,220 (GRCm39) missense probably damaging 1.00
R9110:Dntt UTSW 19 41,044,197 (GRCm39) critical splice acceptor site probably null
R9378:Dntt UTSW 19 41,027,356 (GRCm39) missense probably benign 0.05
YA93:Dntt UTSW 19 41,041,626 (GRCm39) missense probably benign
Z1177:Dntt UTSW 19 41,044,254 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- AGGAAGCAGGTTGCCCTGTGATAC -3'
(R):5'- TGGATTCTGATGCCCATGCCAGTG -3'

Sequencing Primer
(F):5'- ACCAGGATGGATGTAGCCTC -3'
(R):5'- CTTACAACAAGCTGATGTCTCC -3'
Posted On 2014-03-14