Incidental Mutation 'R0548:Htt'
ID 44961
Institutional Source Beutler Lab
Gene Symbol Htt
Ensembl Gene ENSMUSG00000029104
Gene Name huntingtin
Synonyms Hdh, huntingtin, HD, IT15, htt, C430023I11Rik
MMRRC Submission 038740-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R0548 (G1)
Quality Score 207
Status Validated
Chromosome 5
Chromosomal Location 34919084-35069878 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 35028090 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Proline at position 1782 (L1782P)
Ref Sequence ENSEMBL: ENSMUSP00000078945 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000080036]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000080036
AA Change: L1782P

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000078945
Gene: ENSMUSG00000029104
AA Change: L1782P

DomainStartEndE-ValueType
low complexity region 18 65 N/A INTRINSIC
SCOP:d1qgra_ 92 370 1e-12 SMART
low complexity region 371 388 N/A INTRINSIC
low complexity region 432 453 N/A INTRINSIC
low complexity region 1150 1161 N/A INTRINSIC
low complexity region 1423 1441 N/A INTRINSIC
Pfam:DUF3652 1494 1534 9.3e-20 PFAM
low complexity region 1812 1822 N/A INTRINSIC
Blast:GAF 1866 2040 1e-104 BLAST
low complexity region 2461 2472 N/A INTRINSIC
low complexity region 2611 2621 N/A INTRINSIC
low complexity region 2622 2635 N/A INTRINSIC
low complexity region 2857 2872 N/A INTRINSIC
Meta Mutation Damage Score 0.8849 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.8%
  • 20x: 94.3%
Validation Efficiency 97% (62/64)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Huntingtin is a disease gene linked to Huntington's disease, a neurodegenerative disorder characterized by loss of striatal neurons. This is thought to be caused by an expanded, unstable trinucleotide repeat in the huntingtin gene, which translates as a polyglutamine repeat in the protein product. A fairly broad range of trinucleotide repeats (9-35) has been identified in normal controls, and repeat numbers in excess of 40 have been described as pathological. The huntingtin locus is large, spanning 180 kb and consisting of 67 exons. The huntingtin gene is widely expressed and is required for normal development. It is expressed as 2 alternatively polyadenylated forms displaying different relative abundance in various fetal and adult tissues. The larger transcript is approximately 13.7 kb and is expressed predominantly in adult and fetal brain whereas the smaller transcript of approximately 10.3 kb is more widely expressed. The genetic defect leading to Huntington's disease may not necessarily eliminate transcription, but may confer a new property on the mRNA or alter the function of the protein. One candidate is the huntingtin-associated protein-1, highly expressed in brain, which has increased affinity for huntingtin protein with expanded polyglutamine repeats. This gene contains an upstream open reading frame in the 5' UTR that inhibits expression of the huntingtin gene product through translational repression. [provided by RefSeq, Jul 2016]
PHENOTYPE: Null mutants gastrulate abnormally and die in utero. Conditional mutants are small with progressive neurodegeneration. Knock-ins of 20-150 CAG repeat units variably mimic Huntington's with late-onset motor defects, reactive gliosis and neuronal inclusions. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 63 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adam39 T G 8: 41,279,504 (GRCm39) C632G probably damaging Het
Adamtsl3 T C 7: 82,178,191 (GRCm39) probably null Het
Agfg1 A G 1: 82,864,152 (GRCm39) T447A probably damaging Het
Ankrd37 C T 8: 46,451,433 (GRCm39) probably null Het
Apob A T 12: 8,056,282 (GRCm39) D1555V probably damaging Het
Asxl3 T A 18: 22,654,849 (GRCm39) probably benign Het
Brca2 C A 5: 150,468,400 (GRCm39) D2242E probably damaging Het
Car5b G A X: 162,762,297 (GRCm39) R282C probably damaging Het
Cdk5rap2 A T 4: 70,267,379 (GRCm39) probably null Het
Cox10 A T 11: 63,867,178 (GRCm39) Y273N probably damaging Het
Dcbld2 A T 16: 58,275,508 (GRCm39) D408V probably damaging Het
Enam A T 5: 88,650,964 (GRCm39) E824D probably damaging Het
Epm2aip1 T C 9: 111,102,409 (GRCm39) Y461H probably damaging Het
Fam72a T A 1: 131,461,599 (GRCm39) S95T probably damaging Het
Fiz1 A T 7: 5,012,167 (GRCm39) V117D possibly damaging Het
Gm10355 C T 3: 101,214,376 (GRCm39) noncoding transcript Het
Gm11595 A T 11: 99,662,967 (GRCm39) C238S unknown Het
Gm7589 T G 9: 59,053,439 (GRCm39) noncoding transcript Het
H6pd A T 4: 150,066,073 (GRCm39) V771E probably damaging Het
Il33 T C 19: 29,932,047 (GRCm39) S147P probably benign Het
Lct T C 1: 128,212,932 (GRCm39) Y1907C probably damaging Het
Lrp2 G A 2: 69,367,982 (GRCm39) probably benign Het
Maco1 T C 4: 134,533,971 (GRCm39) D550G probably damaging Het
Map1b T C 13: 99,568,191 (GRCm39) K1510R unknown Het
Marco T C 1: 120,419,767 (GRCm39) T187A probably benign Het
Mki67 A T 7: 135,298,637 (GRCm39) N2132K possibly damaging Het
Mki67 T A 7: 135,296,985 (GRCm39) K2683M probably damaging Het
Mmp15 T C 8: 96,098,979 (GRCm39) V602A probably damaging Het
Mphosph10 T A 7: 64,028,548 (GRCm39) M536L probably benign Het
Mroh2a C A 1: 88,170,142 (GRCm39) A685D possibly damaging Het
Mylk G C 16: 34,699,845 (GRCm39) E403Q possibly damaging Het
N4bp2 G T 5: 65,965,496 (GRCm39) V1182L probably benign Het
Nlrc5 C A 8: 95,248,411 (GRCm39) F1715L probably null Het
Nsd2 T A 5: 34,050,882 (GRCm39) V1253E probably damaging Het
Numa1 T C 7: 101,644,731 (GRCm39) S236P possibly damaging Het
Or2a52 T A 6: 43,144,121 (GRCm39) I43K probably benign Het
Or4c120 C A 2: 89,000,992 (GRCm39) C188F probably damaging Het
Or8g18 A T 9: 39,149,667 (GRCm39) S18T probably benign Het
Padi4 GCTGCGTACCTCCAC GC 4: 140,475,760 (GRCm39) probably benign Het
Pi4ka A T 16: 17,125,582 (GRCm39) N4K possibly damaging Het
Plxna4 A T 6: 32,134,950 (GRCm39) I1751N probably damaging Het
Postn C A 3: 54,274,997 (GRCm39) S122* probably null Het
Ppp4r4 A T 12: 103,579,074 (GRCm39) R762* probably null Het
Rrm1 G T 7: 102,116,274 (GRCm39) probably null Het
Rrp15 A G 1: 186,468,431 (GRCm39) V195A probably benign Het
Rtl1 T A 12: 109,558,089 (GRCm39) D1250V probably damaging Het
Rxrg T C 1: 167,458,788 (GRCm39) probably benign Het
Scn10a T C 9: 119,494,994 (GRCm39) K416E probably benign Het
Serping1 T C 2: 84,600,425 (GRCm39) probably benign Het
Slc12a6 T C 2: 112,166,269 (GRCm39) probably null Het
Smo A T 6: 29,759,585 (GRCm39) Q639L possibly damaging Het
Synrg T C 11: 83,873,014 (GRCm39) probably benign Het
Tars2 T C 3: 95,649,971 (GRCm39) D470G probably damaging Het
Tln1 T C 4: 43,542,709 (GRCm39) N1399S possibly damaging Het
Tmem131 A G 1: 36,877,119 (GRCm39) V240A probably damaging Het
Tmem232 G A 17: 65,689,615 (GRCm39) T500I probably benign Het
Toporsl G A 4: 52,612,140 (GRCm39) V678M possibly damaging Het
Vmn1r7 A T 6: 57,002,066 (GRCm39) F65I probably damaging Het
Wdfy4 C T 14: 32,764,578 (GRCm39) M2257I probably benign Het
Wdr20rt T A 12: 65,274,089 (GRCm39) D344E probably benign Het
Xirp2 C T 2: 67,344,758 (GRCm39) A2333V probably benign Het
Zfyve16 T C 13: 92,631,452 (GRCm39) K1381R probably benign Het
Zscan18 G T 7: 12,508,103 (GRCm39) P466T probably damaging Het
Other mutations in Htt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00230:Htt APN 5 34,956,752 (GRCm39) missense probably benign 0.00
IGL00233:Htt APN 5 35,053,370 (GRCm39) splice site probably null
IGL00559:Htt APN 5 35,006,448 (GRCm39) splice site probably benign
IGL00765:Htt APN 5 35,034,769 (GRCm39) splice site probably benign
IGL00950:Htt APN 5 35,048,785 (GRCm39) missense probably benign
IGL00953:Htt APN 5 34,976,021 (GRCm39) missense probably benign 0.04
IGL00957:Htt APN 5 34,964,068 (GRCm39) missense probably benign
IGL01314:Htt APN 5 35,036,200 (GRCm39) missense probably benign
IGL01412:Htt APN 5 35,055,916 (GRCm39) missense probably damaging 0.98
IGL01510:Htt APN 5 35,064,856 (GRCm39) missense probably damaging 1.00
IGL01617:Htt APN 5 35,034,099 (GRCm39) missense possibly damaging 0.67
IGL01893:Htt APN 5 35,034,174 (GRCm39) missense probably damaging 1.00
IGL01914:Htt APN 5 34,987,053 (GRCm39) missense probably benign
IGL01994:Htt APN 5 34,989,948 (GRCm39) missense possibly damaging 0.83
IGL02102:Htt APN 5 35,048,825 (GRCm39) splice site probably benign
IGL02381:Htt APN 5 34,987,104 (GRCm39) missense probably benign 0.03
IGL02529:Htt APN 5 34,976,387 (GRCm39) splice site probably benign
IGL02678:Htt APN 5 35,057,246 (GRCm39) missense probably damaging 1.00
IGL02707:Htt APN 5 34,987,225 (GRCm39) critical splice donor site probably null
IGL02731:Htt APN 5 34,961,137 (GRCm39) missense probably benign 0.41
IGL02931:Htt APN 5 35,034,097 (GRCm39) missense probably damaging 1.00
IGL03167:Htt APN 5 34,976,330 (GRCm39) missense probably damaging 0.98
IGL03343:Htt APN 5 34,983,385 (GRCm39) missense probably benign
IGL03344:Htt APN 5 35,037,172 (GRCm39) missense probably benign 0.39
IGL03344:Htt APN 5 35,064,810 (GRCm39) missense probably benign 0.02
IGL03366:Htt APN 5 35,064,924 (GRCm39) missense probably damaging 1.00
IGL03410:Htt APN 5 34,956,789 (GRCm39) missense probably damaging 0.99
Chalk UTSW 5 35,064,430 (GRCm39) missense possibly damaging 0.86
IGL02796:Htt UTSW 5 35,034,826 (GRCm39) missense probably benign 0.43
PIT4377001:Htt UTSW 5 35,033,309 (GRCm39) missense probably benign 0.10
R0013:Htt UTSW 5 34,977,448 (GRCm39) missense probably benign 0.25
R0049:Htt UTSW 5 35,066,006 (GRCm39) missense probably damaging 0.97
R0049:Htt UTSW 5 35,066,006 (GRCm39) missense probably damaging 0.97
R0056:Htt UTSW 5 34,983,422 (GRCm39) splice site probably benign
R0207:Htt UTSW 5 35,054,252 (GRCm39) missense probably benign 0.11
R0329:Htt UTSW 5 34,974,478 (GRCm39) splice site probably benign
R0494:Htt UTSW 5 34,979,188 (GRCm39) missense possibly damaging 0.73
R0601:Htt UTSW 5 35,003,347 (GRCm39) missense probably benign 0.08
R0799:Htt UTSW 5 34,975,097 (GRCm39) missense probably benign 0.00
R0947:Htt UTSW 5 35,056,268 (GRCm39) missense probably damaging 1.00
R1053:Htt UTSW 5 35,008,561 (GRCm39) critical splice acceptor site probably null
R1147:Htt UTSW 5 35,008,596 (GRCm39) missense probably damaging 0.98
R1147:Htt UTSW 5 35,008,596 (GRCm39) missense probably damaging 0.98
R1478:Htt UTSW 5 34,961,171 (GRCm39) missense probably damaging 0.99
R1573:Htt UTSW 5 35,021,718 (GRCm39) splice site probably benign
R1677:Htt UTSW 5 34,985,918 (GRCm39) missense probably damaging 1.00
R1792:Htt UTSW 5 35,064,543 (GRCm39) missense probably damaging 1.00
R1816:Htt UTSW 5 34,961,084 (GRCm39) missense probably benign 0.01
R1833:Htt UTSW 5 35,063,092 (GRCm39) splice site probably benign
R1837:Htt UTSW 5 34,976,367 (GRCm39) missense probably benign 0.00
R1846:Htt UTSW 5 35,006,288 (GRCm39) missense probably damaging 0.98
R1875:Htt UTSW 5 34,951,456 (GRCm39) missense probably benign 0.05
R1899:Htt UTSW 5 35,064,429 (GRCm39) missense probably benign 0.01
R2013:Htt UTSW 5 35,010,215 (GRCm39) missense probably damaging 0.99
R2062:Htt UTSW 5 34,983,326 (GRCm39) missense probably benign 0.00
R2064:Htt UTSW 5 34,983,326 (GRCm39) missense probably benign 0.00
R2067:Htt UTSW 5 34,983,326 (GRCm39) missense probably benign 0.00
R2068:Htt UTSW 5 34,983,326 (GRCm39) missense probably benign 0.00
R2131:Htt UTSW 5 35,034,453 (GRCm39) missense possibly damaging 0.50
R2162:Htt UTSW 5 34,979,062 (GRCm39) missense probably benign 0.44
R2169:Htt UTSW 5 35,034,819 (GRCm39) missense probably benign 0.08
R2345:Htt UTSW 5 34,983,348 (GRCm39) missense possibly damaging 0.80
R2433:Htt UTSW 5 35,064,885 (GRCm39) missense possibly damaging 0.65
R3027:Htt UTSW 5 34,977,439 (GRCm39) missense possibly damaging 0.85
R3123:Htt UTSW 5 34,961,875 (GRCm39) missense probably benign
R3125:Htt UTSW 5 34,961,875 (GRCm39) missense probably benign
R3717:Htt UTSW 5 34,968,866 (GRCm39) splice site probably benign
R3758:Htt UTSW 5 35,053,314 (GRCm39) missense probably damaging 0.97
R3805:Htt UTSW 5 35,034,548 (GRCm39) splice site probably null
R3833:Htt UTSW 5 34,979,062 (GRCm39) missense probably benign 0.44
R4066:Htt UTSW 5 35,036,191 (GRCm39) missense probably benign
R4272:Htt UTSW 5 35,006,413 (GRCm39) missense possibly damaging 0.96
R4625:Htt UTSW 5 34,987,129 (GRCm39) missense probably damaging 0.99
R4634:Htt UTSW 5 35,033,292 (GRCm39) missense probably benign 0.06
R4655:Htt UTSW 5 35,063,476 (GRCm39) missense probably benign 0.06
R4679:Htt UTSW 5 34,977,424 (GRCm39) missense probably benign
R4684:Htt UTSW 5 35,010,109 (GRCm39) missense probably damaging 1.00
R4832:Htt UTSW 5 34,982,184 (GRCm39) missense probably benign 0.01
R4833:Htt UTSW 5 35,009,569 (GRCm39) missense probably damaging 0.98
R4973:Htt UTSW 5 34,970,367 (GRCm39) missense probably damaging 0.99
R5095:Htt UTSW 5 34,981,739 (GRCm39) missense possibly damaging 0.89
R5132:Htt UTSW 5 35,063,023 (GRCm39) missense possibly damaging 0.89
R5351:Htt UTSW 5 34,961,177 (GRCm39) missense probably damaging 0.99
R5361:Htt UTSW 5 35,064,928 (GRCm39) missense possibly damaging 0.47
R5399:Htt UTSW 5 35,034,495 (GRCm39) missense probably damaging 0.98
R5462:Htt UTSW 5 35,042,851 (GRCm39) nonsense probably null
R5552:Htt UTSW 5 34,979,118 (GRCm39) missense probably benign
R5566:Htt UTSW 5 35,006,419 (GRCm39) missense probably damaging 1.00
R5595:Htt UTSW 5 35,062,741 (GRCm39) missense probably damaging 0.96
R5617:Htt UTSW 5 35,028,150 (GRCm39) missense possibly damaging 0.77
R5835:Htt UTSW 5 34,970,534 (GRCm39) missense probably benign 0.16
R5891:Htt UTSW 5 35,028,167 (GRCm39) missense possibly damaging 0.62
R6158:Htt UTSW 5 35,064,430 (GRCm39) missense possibly damaging 0.86
R6159:Htt UTSW 5 34,962,020 (GRCm39) missense probably benign 0.08
R6169:Htt UTSW 5 35,064,817 (GRCm39) missense probably damaging 1.00
R6242:Htt UTSW 5 35,003,356 (GRCm39) missense probably damaging 1.00
R6274:Htt UTSW 5 35,009,431 (GRCm39) missense possibly damaging 0.81
R6280:Htt UTSW 5 35,028,103 (GRCm39) missense probably benign 0.00
R6294:Htt UTSW 5 34,979,170 (GRCm39) missense probably benign
R6331:Htt UTSW 5 35,053,231 (GRCm39) missense possibly damaging 0.89
R6448:Htt UTSW 5 35,033,336 (GRCm39) missense probably benign 0.05
R6474:Htt UTSW 5 34,982,239 (GRCm39) missense probably benign 0.06
R6592:Htt UTSW 5 35,034,388 (GRCm39) missense possibly damaging 0.92
R6818:Htt UTSW 5 34,940,111 (GRCm39) missense probably damaging 0.99
R6830:Htt UTSW 5 34,991,670 (GRCm39) missense possibly damaging 0.82
R6920:Htt UTSW 5 35,034,444 (GRCm39) missense probably null 1.00
R6962:Htt UTSW 5 35,057,115 (GRCm39) critical splice acceptor site probably null
R7057:Htt UTSW 5 34,979,067 (GRCm39) missense probably null 0.05
R7144:Htt UTSW 5 35,003,350 (GRCm39) missense probably damaging 1.00
R7166:Htt UTSW 5 35,010,238 (GRCm39) missense probably benign 0.42
R7329:Htt UTSW 5 34,987,099 (GRCm39) missense probably benign 0.03
R7378:Htt UTSW 5 34,961,143 (GRCm39) missense probably benign 0.04
R7418:Htt UTSW 5 34,947,697 (GRCm39) missense possibly damaging 0.55
R7495:Htt UTSW 5 34,968,821 (GRCm39) missense probably benign 0.00
R7554:Htt UTSW 5 35,022,084 (GRCm39) missense probably damaging 0.97
R7575:Htt UTSW 5 35,062,987 (GRCm39) missense probably damaging 1.00
R7763:Htt UTSW 5 35,009,534 (GRCm39) missense probably damaging 1.00
R7782:Htt UTSW 5 35,040,336 (GRCm39) missense probably benign 0.03
R7850:Htt UTSW 5 35,009,631 (GRCm39) splice site probably null
R7870:Htt UTSW 5 35,055,891 (GRCm39) missense possibly damaging 0.77
R7871:Htt UTSW 5 35,021,993 (GRCm39) missense probably benign 0.00
R7879:Htt UTSW 5 34,981,252 (GRCm39) missense probably benign
R7992:Htt UTSW 5 34,987,225 (GRCm39) critical splice donor site probably null
R8058:Htt UTSW 5 34,977,444 (GRCm39) missense probably benign
R8168:Htt UTSW 5 35,040,300 (GRCm39) missense probably benign 0.00
R8188:Htt UTSW 5 34,919,287 (GRCm39) missense probably benign 0.03
R8262:Htt UTSW 5 35,053,304 (GRCm39) missense probably benign
R8343:Htt UTSW 5 35,063,068 (GRCm39) missense probably damaging 1.00
R8353:Htt UTSW 5 35,034,499 (GRCm39) missense possibly damaging 0.49
R8769:Htt UTSW 5 34,977,633 (GRCm39) missense probably benign 0.05
R8808:Htt UTSW 5 35,046,791 (GRCm39) missense probably benign 0.10
R8825:Htt UTSW 5 34,983,304 (GRCm39) missense probably benign 0.24
R8843:Htt UTSW 5 35,046,809 (GRCm39) missense possibly damaging 0.92
R8856:Htt UTSW 5 35,060,675 (GRCm39) missense probably benign 0.44
R8882:Htt UTSW 5 34,979,061 (GRCm39) missense probably benign
R8898:Htt UTSW 5 34,976,376 (GRCm39) missense probably benign 0.01
R8964:Htt UTSW 5 35,062,720 (GRCm39) missense probably benign 0.09
R8987:Htt UTSW 5 34,977,368 (GRCm39) missense probably benign 0.18
R8991:Htt UTSW 5 35,063,062 (GRCm39) missense probably damaging 1.00
R9005:Htt UTSW 5 34,975,095 (GRCm39) missense possibly damaging 0.92
R9019:Htt UTSW 5 35,023,920 (GRCm39) missense probably damaging 1.00
R9057:Htt UTSW 5 35,009,454 (GRCm39) missense possibly damaging 0.86
R9157:Htt UTSW 5 34,987,171 (GRCm39) missense probably null 0.89
R9205:Htt UTSW 5 34,976,367 (GRCm39) missense probably benign 0.00
R9223:Htt UTSW 5 35,062,692 (GRCm39) missense probably benign 0.01
R9243:Htt UTSW 5 35,056,276 (GRCm39) splice site probably benign
R9329:Htt UTSW 5 34,989,957 (GRCm39) missense possibly damaging 0.69
R9355:Htt UTSW 5 35,053,247 (GRCm39) missense probably benign
R9402:Htt UTSW 5 35,006,324 (GRCm39) missense probably damaging 1.00
R9446:Htt UTSW 5 34,919,272 (GRCm39) missense probably benign
R9716:Htt UTSW 5 35,012,019 (GRCm39) missense probably damaging 1.00
Z1177:Htt UTSW 5 35,009,575 (GRCm39) missense probably null 0.87
Predicted Primers PCR Primer
(F):5'- TCATCAGAGGTGCAAAAGTGGACTG -3'
(R):5'- AGCTTTGCCTCAGGCCAAACAC -3'

Sequencing Primer
(F):5'- gattgccagcaccttattcc -3'
(R):5'- AGGCCAAACACTGGGCTG -3'
Posted On 2013-06-11