Incidental Mutation 'R3805:Htt'
ID 274545
Institutional Source Beutler Lab
Gene Symbol Htt
Ensembl Gene ENSMUSG00000029104
Gene Name huntingtin
Synonyms Hdh, huntingtin, HD, IT15, htt, C430023I11Rik
MMRRC Submission 040762-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R3805 (G1)
Quality Score 225
Status Validated
Chromosome 5
Chromosomal Location 34919084-35069878 bp(+) (GRCm39)
Type of Mutation splice site (3 bp from exon)
DNA Base Change (assembly) A to G at 35034548 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000078945 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000080036] [ENSMUST00000080036]
AlphaFold no structure available at present
Predicted Effect probably null
Transcript: ENSMUST00000080036
SMART Domains Protein: ENSMUSP00000078945
Gene: ENSMUSG00000029104

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 probably null
Transcript: ENSMUST00000080036
SMART Domains Protein: ENSMUSP00000078945
Gene: ENSMUSG00000029104

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: ENSMUST00000135039
Meta Mutation Damage Score 0.9755 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.7%
  • 10x: 97.7%
  • 20x: 96.1%
Validation Efficiency 100% (41/41)
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: 36 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700012B07Rik G T 11: 109,684,980 (GRCm39) C172* probably null Het
Aebp2 GCGGCC GCGGCCGGCC 6: 140,589,675 (GRCm39) probably null Het
Ano5 T C 7: 51,226,398 (GRCm39) F584L probably benign Het
Ap1b1 T A 11: 4,983,225 (GRCm39) probably null Het
Bicd1 T A 6: 149,420,489 (GRCm39) L780M probably damaging Het
Ccdc138 T C 10: 58,397,819 (GRCm39) I553T possibly damaging Het
Col1a2 G A 6: 4,518,822 (GRCm39) probably benign Het
Crct1 C A 3: 92,922,014 (GRCm39) probably benign Het
Ctu1 T C 7: 43,326,097 (GRCm39) L252P probably damaging Het
Dhrs2 A T 14: 55,472,205 (GRCm39) N32I probably benign Het
Dnah1 A T 14: 31,016,720 (GRCm39) M1599K possibly damaging Het
Eri2 A T 7: 119,385,231 (GRCm39) C423* probably null Het
Fam169a G A 13: 97,234,192 (GRCm39) V155I probably benign Het
Get4 G T 5: 139,238,286 (GRCm39) V23F probably damaging Het
Hdac3 A G 18: 38,078,745 (GRCm39) probably null Het
Herc3 C A 6: 58,893,835 (GRCm39) H970Q probably damaging Het
Ifit1 A G 19: 34,625,556 (GRCm39) I231V probably damaging Het
Lingo4 A G 3: 94,309,407 (GRCm39) D115G probably damaging Het
Lrrc7 T C 3: 157,891,130 (GRCm39) I346V probably benign Het
Map7d1 A T 4: 126,131,084 (GRCm39) probably null Het
Morf4l1 A G 9: 89,977,196 (GRCm39) S203P probably benign Het
Naaladl1 A G 19: 6,164,895 (GRCm39) T628A probably benign Het
Nlrp9a T A 7: 26,264,277 (GRCm39) C643* probably null Het
Or4ac1-ps1 A T 2: 88,370,700 (GRCm39) noncoding transcript Het
Or4b1 T G 2: 89,978,805 (GRCm39) probably benign Het
Oxtr T C 6: 112,454,147 (GRCm39) K39R probably benign Het
Ppp4r4 T A 12: 103,566,625 (GRCm39) M24K probably damaging Het
Ppp6r2 T C 15: 89,149,842 (GRCm39) F256L probably benign Het
Robo4 A T 9: 37,315,734 (GRCm39) D329V possibly damaging Het
Rsph10b G A 5: 143,895,206 (GRCm39) probably null Het
Slc9b2 T C 3: 135,030,349 (GRCm39) L222P probably damaging Het
Speer4a1 C T 5: 26,240,082 (GRCm39) E223K possibly damaging Het
St18 T A 1: 6,872,577 (GRCm39) L104H probably damaging Het
Tmem184c C A 8: 78,323,504 (GRCm39) D453Y unknown Het
Trpv1 A T 11: 73,143,879 (GRCm39) N237I probably damaging Het
Vmn2r77 T A 7: 86,444,368 (GRCm39) L7* probably null 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
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
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'- TTCTCAACATTAGCCAACCACTCTG -3'
(R):5'- AGAACACATCAGGGCTTTTGTG -3'

Sequencing Primer
(F):5'- TTAGCCAACCACTCTGAAGAAAAC -3'
(R):5'- CACATCAGGGCTTTTGTGATATAC -3'
Posted On 2015-04-02