Incidental Mutation 'R4380:Dntt'
ID325314
Institutional Source Beutler Lab
Gene Symbol Dntt
Ensembl Gene ENSMUSG00000025014
Gene Namedeoxynucleotidyltransferase, terminal
SynonymsTdt
MMRRC Submission 041678-MU
Accession Numbers

Genbank: NM_009345 ; MGI: 98659

Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R4380 (G1)
Quality Score225
Status Validated
Chromosome19
Chromosomal Location41029275-41059523 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) G to C at 41053233 bp
ZygosityHeterozygous
Amino Acid Change Glycine to Alanine at position 452 (G452A)
Ref Sequence ENSEMBL: ENSMUSP00000107819 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000051806] [ENSMUST00000112200]
Predicted Effect probably damaging
Transcript: ENSMUST00000051806
AA Change: G452A

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000062078
Gene: ENSMUSG00000025014
AA Change: G452A

DomainStartEndE-ValueType
BRCT 29 114 3.05e-9 SMART
POLXc 163 529 5.68e-196 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000112200
AA Change: G452A

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000107819
Gene: ENSMUSG00000025014
AA Change: G452A

DomainStartEndE-ValueType
BRCT 29 114 3.05e-9 SMART
POLXc 163 509 1.19e-198 SMART
Meta Mutation Damage Score 0.9234 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.1%
  • 20x: 94.7%
Validation Efficiency 98% (45/46)
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: 41 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2310016G11Rik T C 7: 44,677,156 noncoding transcript Het
Casc3 C A 11: 98,823,031 P363Q possibly damaging Het
Cep162 C A 9: 87,200,003 R1283L probably damaging Het
Clk3 C A 9: 57,751,792 W562L probably damaging Het
Col17a1 G A 19: 47,657,090 T844M possibly damaging Het
Dopey2 G A 16: 93,716,232 V20I possibly damaging Het
Dst T C 1: 34,163,235 S215P probably damaging Het
Dync1li2 A T 8: 104,428,166 I270N probably damaging Het
Egflam A T 15: 7,243,869 I575N possibly damaging Het
Gldc G T 19: 30,160,768 probably benign Het
Gm13089 T A 4: 143,698,286 I196F probably benign Het
Gm17067 C A 7: 42,708,038 V347L probably benign Het
Gmds T A 13: 31,917,696 N304I probably benign Het
Grm7 G T 6: 110,646,348 V161F probably damaging Het
Igfn1 T C 1: 135,967,771 T1686A probably benign Het
Klk14 G A 7: 43,692,077 C51Y probably damaging Het
Lamb3 A T 1: 193,331,375 Q519L probably benign Het
Lrp10 C T 14: 54,468,366 R338C probably damaging Het
Macf1 A G 4: 123,354,492 probably benign Het
Mcfd2 C G 17: 87,257,959 G39R possibly damaging Het
Mecom T C 3: 29,987,070 H125R probably damaging Het
Nme7 A G 1: 164,345,238 T173A probably benign Het
Olfr1193 A G 2: 88,678,271 T132A possibly damaging Het
Olfr194 C T 16: 59,119,664 M135I probably benign Het
Pde1c T A 6: 56,072,278 R683S probably null Het
Pkn2 A T 3: 142,830,456 probably benign Het
Plppr4 T G 3: 117,322,397 T604P probably benign Het
Slc34a2 C T 5: 53,069,286 P584S probably damaging Het
Slco5a1 A T 1: 12,939,168 M361K probably damaging Het
Snx4 T A 16: 33,264,296 I60N probably damaging Het
Sp6 T C 11: 97,021,746 L95P probably damaging Het
Stat5b A G 11: 100,787,349 F646S probably damaging Het
Tbc1d1 T C 5: 64,333,548 M785T probably benign Het
Tbc1d22a T A 15: 86,351,734 C365S probably damaging Het
Tle1 ACAGGTTTCTTCAGGTTTCTT ACAGGTTTCTT 4: 72,118,163 probably benign Het
Tnfsf8 A T 4: 63,861,027 C11* probably null Het
Ttn A T 2: 76,918,141 V4188E probably damaging Het
Ugt2b5 T A 5: 87,127,894 H366L probably damaging Het
Wdr17 T C 8: 54,648,407 probably benign Het
Zfhx3 A G 8: 108,956,390 Y3487C unknown Het
Zfp28 C T 7: 6,393,442 T292I 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
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
R7806:Dntt UTSW 19 41029632 missense probably benign 0.02
YA93:Dntt UTSW 19 41053187 missense probably benign
Z1177:Dntt UTSW 19 41055815 missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- ATGCTCTCGACCATTTCCAG -3'
(R):5'- TGAGTTACTCACCACCCTGC -3'

Sequencing Primer
(F):5'- CCAGAAATGCTTCCTGATTCTGAAGC -3'
(R):5'- CCTAGGGGGTTTTACAAACATCCG -3'
Posted On2015-07-06