Incidental Mutation 'R1816:Htt'
ID 204410
Institutional Source Beutler Lab
Gene Symbol Htt
Ensembl Gene ENSMUSG00000029104
Gene Name huntingtin
Synonyms Hdh, huntingtin, HD, IT15, htt, C430023I11Rik
MMRRC Submission 039844-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R1816 (G1)
Quality Score 225
Status Validated
Chromosome 5
Chromosomal Location 34919084-35069878 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 34961084 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Alanine to Valine at position 237 (A237V)
Ref Sequence ENSEMBL: ENSMUSP00000078945 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000080036]
AlphaFold no structure available at present
Predicted Effect probably benign
Transcript: ENSMUST00000080036
AA Change: A237V

PolyPhen 2 Score 0.012 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000078945
Gene: ENSMUSG00000029104
AA Change: A237V

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
Predicted Effect noncoding transcript
Transcript: ENSMUST00000123755
Predicted Effect noncoding transcript
Transcript: ENSMUST00000148953
Predicted Effect noncoding transcript
Transcript: ENSMUST00000156490
Meta Mutation Damage Score 0.0700 question?
Coding Region Coverage
  • 1x: 97.4%
  • 3x: 96.8%
  • 10x: 95.0%
  • 20x: 91.9%
Validation Efficiency 99% (72/73)
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: 72 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930433I11Rik T A 7: 40,644,222 (GRCm39) Y721* probably null Het
4933405L10Rik T A 8: 106,436,491 (GRCm39) V220E possibly damaging Het
4933434E20Rik T C 3: 89,960,398 (GRCm39) V13A possibly damaging Het
Adam1b T G 5: 121,639,788 (GRCm39) Q419P probably damaging Het
Ankib1 A G 5: 3,784,028 (GRCm39) V316A probably benign Het
Anks1 T A 17: 28,205,547 (GRCm39) D294E probably damaging Het
Atr T C 9: 95,748,747 (GRCm39) S431P probably benign Het
Bfsp1 C T 2: 143,683,599 (GRCm39) A242T probably benign Het
Bptf A T 11: 106,951,405 (GRCm39) V279E probably damaging Het
Camkk2 A G 5: 122,872,243 (GRCm39) L540P probably damaging Het
Cd84 A G 1: 171,700,317 (GRCm39) T145A possibly damaging Het
Ceacam12 T A 7: 17,805,690 (GRCm39) probably null Het
Cntnap5a G T 1: 116,356,618 (GRCm39) A823S probably benign Het
Cp T C 3: 20,022,384 (GRCm39) probably benign Het
Dhx58 A G 11: 100,593,978 (GRCm39) V163A probably damaging Het
Dicer1 T C 12: 104,688,410 (GRCm39) E389G probably damaging Het
Disp1 T A 1: 182,880,139 (GRCm39) D288V probably damaging Het
Dnah7a A G 1: 53,670,901 (GRCm39) probably benign Het
Eaf2 T G 16: 36,628,371 (GRCm39) probably benign Het
Efna1 T C 3: 89,183,694 (GRCm39) N44S possibly damaging Het
Etnppl T C 3: 130,428,211 (GRCm39) I462T probably benign Het
Fam83d G T 2: 158,610,070 (GRCm39) A13S possibly damaging Het
Fer1l4 C T 2: 155,877,119 (GRCm39) V1139M probably damaging Het
Fstl1 A G 16: 37,647,086 (GRCm39) probably null Het
Gm14226 A T 2: 154,867,549 (GRCm39) D502V probably damaging Het
Gm5117 T A 8: 32,228,986 (GRCm39) noncoding transcript Het
Gm973 A G 1: 59,621,558 (GRCm39) N566S probably damaging Het
Grm7 A T 6: 111,472,752 (GRCm39) K16* probably null Het
Hbb-bh2 G A 7: 103,489,585 (GRCm39) T17I possibly damaging Het
Itga6 T C 2: 71,671,153 (GRCm39) V665A probably benign Het
Klf4 G T 4: 55,530,977 (GRCm39) R45S probably benign Het
Mki67 T C 7: 135,309,116 (GRCm39) D445G possibly damaging Het
Myo10 T C 15: 25,800,286 (GRCm39) V1454A probably damaging Het
Nrbp1 T A 5: 31,403,157 (GRCm39) I210N probably damaging Het
Nudt12 G A 17: 59,317,131 (GRCm39) P172L probably damaging Het
Odam A G 5: 88,037,329 (GRCm39) probably null Het
Or1e33 T C 11: 73,738,025 (GRCm39) K309E probably benign Het
Or2ag13 A T 7: 106,472,695 (GRCm39) Y252* probably null Het
Or4p18 T G 2: 88,232,943 (GRCm39) I112L possibly damaging Het
Or5g29 G T 2: 85,421,269 (GRCm39) K128N probably benign Het
Or5p80 T C 7: 108,229,364 (GRCm39) L55P probably damaging Het
Or8k33 A T 2: 86,384,011 (GRCm39) C152* probably null Het
Pcm1 T A 8: 41,762,574 (GRCm39) S1412T probably damaging Het
Pgap1 A G 1: 54,531,216 (GRCm39) L753P probably damaging Het
Pi4k2b T C 5: 52,908,088 (GRCm39) S153P probably damaging Het
Pik3c2b C T 1: 133,029,108 (GRCm39) A1398V probably benign Het
Pkhd1l1 T C 15: 44,391,635 (GRCm39) I1567T possibly damaging Het
Rapgef6 G A 11: 54,585,314 (GRCm39) V1571I probably benign Het
Rfx2 C A 17: 57,115,305 (GRCm39) E5* probably null Het
Sh3tc1 C A 5: 35,857,928 (GRCm39) probably null Het
Slc22a12 G A 19: 6,592,683 (GRCm39) Q20* probably null Het
Slc4a1 A G 11: 102,242,056 (GRCm39) C861R probably damaging Het
Snrnp25 G A 11: 32,157,565 (GRCm39) V48I probably damaging Het
Spata1 G T 3: 146,186,962 (GRCm39) P211Q probably damaging Het
Srgap1 G A 10: 121,761,876 (GRCm39) Q91* probably null Het
Stab1 T C 14: 30,879,422 (GRCm39) D686G probably benign Het
Stx8 T A 11: 67,902,152 (GRCm39) M112K possibly damaging Het
Tfap2b A T 1: 19,279,436 (GRCm39) K15N probably damaging Het
Thbs2 C A 17: 14,890,975 (GRCm39) D1052Y probably benign Het
Thbs2 T A 17: 14,890,976 (GRCm39) E1051D probably benign Het
Thoc2l A G 5: 104,665,700 (GRCm39) D74G probably benign Het
Tlr2 T C 3: 83,745,516 (GRCm39) Y189C probably damaging Het
Tmem268 C A 4: 63,483,947 (GRCm39) P55T possibly damaging Het
Tnpo3 T C 6: 29,557,016 (GRCm39) H745R probably benign Het
Trappc14 A G 5: 138,258,603 (GRCm39) V548A possibly damaging Het
Ube2s T C 7: 4,814,554 (GRCm39) N2S probably damaging Het
Ulk1 A G 5: 110,935,697 (GRCm39) Y39H probably damaging Het
Vmn1r49 G T 6: 90,049,785 (GRCm39) D72E possibly damaging Het
Vmn2r27 C A 6: 124,207,330 (GRCm39) G104* probably null Het
Vmn2r92 A G 17: 18,386,939 (GRCm39) I93V probably damaging Het
Zdhhc20 A T 14: 58,127,600 (GRCm39) V13E probably benign Het
Zfp958 A T 8: 4,679,147 (GRCm39) I391F possibly 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
R0548:Htt UTSW 5 35,028,090 (GRCm39) missense probably damaging 1.00
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
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'- CACACAGCCTTCCTAATGCG -3'
(R):5'- GTAGTTTAGAAGATTGAGCAGATGC -3'

Sequencing Primer
(F):5'- CAGCCTTCCTAATGCGATTAATAAGG -3'
(R):5'- ATGCTAAGACTGGGCCAGC -3'
Posted On 2014-06-23