Incidental Mutation 'R0266:Dntt'
ID34968
Institutional Source Beutler Lab
Gene Symbol Dntt
Ensembl Gene ENSMUSG00000025014
Gene Namedeoxynucleotidyltransferase, terminal
SynonymsTdt
MMRRC Submission 038492-MU
Accession Numbers

Genbank: NM_009345 ; MGI: 98659

Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R0266 (G1)
Quality Score225
Status Validated
Chromosome19
Chromosomal Location41029275-41059523 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to C at 41059127 bp
ZygosityHeterozygous
Amino Acid Change Isoleucine to Threonine at position 503 (I503T)
Ref Sequence ENSEMBL: ENSMUSP00000107819 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000051806] [ENSMUST00000087176] [ENSMUST00000112200]
Predicted Effect probably damaging
Transcript: ENSMUST00000051806
AA Change: I523T

PolyPhen 2 Score 0.984 (Sensitivity: 0.74; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000062078
Gene: ENSMUSG00000025014
AA Change: I523T

DomainStartEndE-ValueType
BRCT 29 114 3.05e-9 SMART
POLXc 163 529 5.68e-196 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000087176
SMART Domains Protein: ENSMUSP00000084422
Gene: ENSMUSG00000050121

DomainStartEndE-ValueType
low complexity region 8 21 N/A INTRINSIC
transmembrane domain 31 53 N/A INTRINSIC
low complexity region 122 136 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000112200
AA Change: I503T

PolyPhen 2 Score 0.991 (Sensitivity: 0.71; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000107819
Gene: ENSMUSG00000025014
AA Change: I503T

DomainStartEndE-ValueType
BRCT 29 114 3.05e-9 SMART
POLXc 163 509 1.19e-198 SMART
Meta Mutation Damage Score 0.1768 question?
Coding Region Coverage
  • 1x: 98.3%
  • 3x: 97.2%
  • 10x: 94.9%
  • 20x: 89.8%
Validation Efficiency 100% (79/79)
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: 77 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700001K19Rik A G 12: 110,668,754 S117P possibly damaging Het
Aars2 T C 17: 45,507,510 probably benign Het
Acot11 T C 4: 106,749,988 D466G probably damaging Het
Adgrd1 G A 5: 129,139,594 A342T probably benign Het
Apbb2 A T 5: 66,302,611 N714K probably benign Het
Aqp12 C A 1: 93,006,850 H150N possibly damaging Het
Brinp3 T A 1: 146,682,680 L114* probably null Het
Ccng2 T C 5: 93,271,289 probably benign Het
Cd36 T A 5: 17,798,252 R265S probably benign Het
Ces4a T C 8: 105,141,966 L104S probably benign Het
Clca4b T C 3: 144,922,786 I387V probably damaging Het
Cul7 T A 17: 46,654,595 H566Q probably benign Het
Ddx60 A T 8: 62,033,493 H1646L possibly damaging Het
Dynlt1a T G 17: 6,317,395 E2D probably benign Het
Efemp2 G T 19: 5,477,999 C78F probably damaging Het
Esco1 T C 18: 10,594,605 E227G probably benign Het
Fezf2 T A 14: 12,342,607 K419N probably damaging Het
Gm17541 A T 12: 4,689,487 probably benign Het
Gm2381 G A 7: 42,819,948 Q251* probably null Het
Gm4782 T G 6: 50,610,694 S686R probably damaging Het
Grin3a G A 4: 49,665,501 R1045* probably null Het
Grm8 T C 6: 27,285,896 Y839C probably damaging Het
Gtf3c1 G A 7: 125,644,134 P1766L possibly damaging Het
Herc2 T A 7: 56,206,578 H3921Q probably damaging Het
Hes6 A T 1: 91,412,304 D143E possibly damaging Het
Hmcn2 A G 2: 31,394,827 E2055G probably benign Het
Hmcn2 G A 2: 31,445,353 probably benign Het
Ikzf3 A G 11: 98,467,317 L398P probably benign Het
Il10ra A T 9: 45,265,652 I125N probably benign Het
Kcnb2 G A 1: 15,712,913 probably benign Het
Krt77 T C 15: 101,869,378 R81G possibly damaging Het
Lrrc40 T A 3: 158,041,661 probably null Het
Man1a2 C T 3: 100,582,034 R543Q probably damaging Het
Mansc1 T C 6: 134,610,707 D169G probably benign Het
Mdn1 T A 4: 32,741,835 S3869T probably damaging Het
Mettl14 A T 3: 123,382,826 S58T probably benign Het
Mrpl4 T C 9: 21,003,314 V62A probably benign Het
Myh3 A G 11: 67,093,672 D1085G possibly damaging Het
Myo5c C A 9: 75,284,216 probably benign Het
Naalad2 G T 9: 18,350,943 probably benign Het
Nat3 A G 8: 67,547,780 T104A probably benign Het
Nek4 A G 14: 30,957,296 E198G probably damaging Het
Olfm1 A G 2: 28,229,607 Y403C probably damaging Het
Olfr1131 C A 2: 87,629,282 T273K possibly damaging Het
Olfr873 A T 9: 20,301,158 R320S probably benign Het
Osbpl1a T A 18: 12,871,163 probably null Het
Pax7 G A 4: 139,779,736 S330L possibly damaging Het
Pcdhb15 C A 18: 37,475,276 D520E probably damaging Het
Pgm3 T C 9: 86,567,533 T145A probably benign Het
Phox2b G A 5: 67,096,625 probably null Het
Pik3r6 A T 11: 68,526,408 R59* probably null Het
Pold1 A G 7: 44,541,025 probably benign Het
Ppp1r21 T C 17: 88,569,072 probably benign Het
Prl5a1 A G 13: 28,149,987 K158E possibly damaging Het
Rag2 T G 2: 101,630,603 C419W probably damaging Het
Reln A G 5: 21,988,776 S1395P probably damaging Het
Retnlb T G 16: 48,818,659 Y74* probably null Het
Robo3 A G 9: 37,422,640 S633P probably damaging Het
Ryr1 A G 7: 29,040,679 S3941P probably damaging Het
Scnn1b A G 7: 121,912,475 N370S probably damaging Het
Slc6a5 C A 7: 49,938,408 probably benign Het
Sort1 T A 3: 108,344,931 N481K probably benign Het
Sptlc3 T A 2: 139,596,037 I417K possibly damaging Het
Svil T A 18: 5,099,063 probably benign Het
Taf4b T C 18: 14,813,077 probably benign Het
Tchp T C 5: 114,709,333 M71T possibly damaging Het
Thsd4 T A 9: 59,997,134 H233L probably benign Het
Tmem217 G T 17: 29,526,599 N52K possibly damaging Het
Tmem38b T C 4: 53,840,765 L60S probably damaging Het
Uqcrfs1 A C 13: 30,541,163 N131K probably benign Het
Vars T A 17: 35,013,869 S896R probably benign Het
Vmn1r170 A T 7: 23,606,481 M103L probably benign Het
Vmn2r22 T C 6: 123,637,404 Y409C probably damaging Het
Vmn2r92 C T 17: 18,167,957 A408V probably damaging Het
Wdr49 A T 3: 75,451,796 I8N possibly damaging Het
Zfp648 T A 1: 154,204,886 Y264N probably damaging Het
Zmym1 A C 4: 127,048,025 F857V possibly 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
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
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'- ACACCTTGACTTCTGACCAAAGCAG -3'
(R):5'- ATGCAACAGTAGGACAGATGGCCC -3'

Sequencing Primer
(F):5'- TTCTGACCAAAGCAGGGTGG -3'
(R):5'- GCTGCATCCTGGTTTATCAAGAC -3'
Posted On2013-05-09