Incidental Mutation 'R0098:Hexa'
ID17930
Institutional Source Beutler Lab
Gene Symbol Hexa
Ensembl Gene ENSMUSG00000025232
Gene Namehexosaminidase A
SynonymsHex-1
MMRRC Submission 038384-MU
Accession Numbers
Is this an essential gene? Possibly non essential (E-score: 0.340) question?
Stock #R0098 (G1)
Quality Score
Status Validated
Chromosome9
Chromosomal Location59539540-59565109 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to C at 59558100 bp
ZygosityHeterozygous
Amino Acid Change Tyrosine to Histidine at position 213 (Y213H)
Ref Sequence ENSEMBL: ENSMUSP00000026262 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000026262]
Predicted Effect probably damaging
Transcript: ENSMUST00000026262
AA Change: Y213H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000026262
Gene: ENSMUSG00000025232
AA Change: Y213H

DomainStartEndE-ValueType
signal peptide 1 22 N/A INTRINSIC
Pfam:Glycohydro_20b2 23 145 3e-25 PFAM
Pfam:Glyco_hydro_20 167 487 1.6e-88 PFAM
Meta Mutation Damage Score 0.8917 question?
Coding Region Coverage
  • 1x: 90.4%
  • 3x: 88.1%
  • 10x: 82.9%
  • 20x: 75.6%
Validation Efficiency 93% (78/84)
MGI Phenotype FUNCTION: This gene encodes a member of the glycosyl hydrolase 20 family of proteins. The encoded preproprotein is proteolytically processed to generate the alpha subunit of the lysosomal enzyme beta-hexosaminidase. This enzyme, together with the cofactor GM2 activator protein, catalyzes the degradation of the ganglioside GM2, and other molecules containing terminal N-acetyl hexosamines. Mice lacking the encoded protein exhibit accumulation of gangliosides in the brain and membranous cytoplasmic bodies in neurons. Certain mutations in the human ortholog of this gene cause Tay-Sachs disease. [provided by RefSeq, Aug 2016]
PHENOTYPE: Homozygous mutants accumulate excess amounts of GM2 ganglioside that is stored in neurons as membranous cytoplasmic bodies typically seen in the neurons of Tay-Sachs disease patients. However, the mutant mice appear to be functionally normal. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 59 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2310061I04Rik A T 17: 35,896,417 probably benign Het
Acad9 T C 3: 36,073,540 I97T probably damaging Het
Adam32 T A 8: 24,914,389 Y200F possibly damaging Het
Adcy4 T C 14: 55,769,827 N976S possibly damaging Het
Adgrb2 C G 4: 130,007,831 P416R probably damaging Het
Alpk2 A G 18: 65,349,911 L342S probably damaging Het
Ambra1 T A 2: 91,767,711 H72Q possibly damaging Het
Ankrd10 T C 8: 11,612,560 H391R probably benign Het
Arfgef3 A G 10: 18,589,642 V2151A probably damaging Het
Atm T C 9: 53,518,569 D389G probably benign Het
Atp10b A T 11: 43,189,604 S236C probably benign Het
B3gat1 C T 9: 26,756,941 R276C probably damaging Het
Bcl9l C T 9: 44,505,617 P251S probably benign Het
Cdhr5 C A 7: 141,269,868 G331W probably damaging Het
Cmklr1 T C 5: 113,614,470 T157A probably benign Het
Cndp1 T A 18: 84,628,824 E246D probably damaging Het
Cntn4 A G 6: 106,618,424 probably benign Het
Crebbp A G 16: 4,091,928 L1078P probably damaging Het
Cyp20a1 G T 1: 60,387,254 E452* probably null Het
Emb T C 13: 117,267,498 V262A probably damaging Het
Ephb1 C T 9: 102,041,140 R390H probably damaging Het
Faf1 T C 4: 109,935,499 L556S probably damaging Het
Fat2 T C 11: 55,298,605 T1196A probably damaging Het
Fbf1 A T 11: 116,148,119 probably null Het
Gid8 T A 2: 180,714,735 I55N possibly damaging Het
Igf2bp1 T C 11: 95,973,163 K234E probably damaging Het
Ighv1-58 C T 12: 115,312,299 G73E probably benign Het
Kalrn A T 16: 33,975,619 I1262K possibly damaging Het
Lrp1 C T 10: 127,552,738 V3281I probably benign Het
Lrp2 T C 2: 69,475,412 D2935G probably damaging Het
Lypd6 T A 2: 50,190,780 V160E probably benign Het
Muc19 C T 15: 91,892,907 noncoding transcript Het
Nrxn3 A G 12: 89,260,201 D202G probably damaging Het
Nxn A T 11: 76,278,594 probably benign Het
Olfr1461 T A 19: 13,165,662 I216K probably benign Het
Palld C A 8: 61,525,086 G890V probably damaging Het
Pcx C A 19: 4,601,747 probably benign Het
Pik3c2g T C 6: 139,662,443 S416P unknown Het
Ppa2 C T 3: 133,370,473 probably benign Het
Ppp1r18 A G 17: 35,867,996 I254M probably benign Het
Prune2 A G 19: 17,123,903 E2257G possibly damaging Het
Rd3 A G 1: 191,985,300 M244V probably benign Het
Rfx5 T A 3: 94,958,368 V326E probably damaging Het
Rgs3 G C 4: 62,625,906 R305P probably damaging Het
Rpp40 A G 13: 35,898,987 Y173H probably benign Het
Ryr3 T C 2: 112,901,031 N645D probably damaging Het
Sema3e T C 5: 14,252,432 V657A possibly damaging Het
Serpina3n T A 12: 104,413,518 V390E probably damaging Het
Shank1 A G 7: 44,313,285 Y141C unknown Het
Smg1 A T 7: 118,145,467 M3154K probably benign Het
Tdrd12 A G 7: 35,475,993 L996P probably damaging Het
Tfrc G T 16: 32,623,426 V490F probably damaging Het
Tie1 T C 4: 118,486,587 S53G probably benign Het
Topaz1 T C 9: 122,790,123 Y1262H possibly damaging Het
Ttc3 A T 16: 94,390,265 H222L probably benign Het
Ubxn8 T C 8: 33,635,365 probably benign Het
Unk A G 11: 116,050,169 Y252C probably damaging Het
Vwc2l A G 1: 70,729,131 Y71C probably damaging Het
Zfp386 T A 12: 116,059,214 L184* probably null Het
Other mutations in Hexa
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01877:Hexa APN 9 59563880 splice site probably benign
IGL02078:Hexa APN 9 59557303 missense probably benign 0.36
R0098:Hexa UTSW 9 59558100 missense probably damaging 1.00
R0281:Hexa UTSW 9 59554226 critical splice donor site probably null
R0364:Hexa UTSW 9 59563935 missense probably benign 0.00
R0481:Hexa UTSW 9 59555410 splice site probably benign
R1888:Hexa UTSW 9 59557303 missense probably benign 0.36
R1888:Hexa UTSW 9 59557303 missense probably benign 0.36
R2264:Hexa UTSW 9 59555377 missense probably damaging 0.99
R3545:Hexa UTSW 9 59557298 missense probably damaging 0.99
R4609:Hexa UTSW 9 59557319 missense probably benign 0.32
R5777:Hexa UTSW 9 59560960 missense probably damaging 0.99
R6041:Hexa UTSW 9 59563236 missense probably damaging 0.99
R6403:Hexa UTSW 9 59557361 missense probably damaging 1.00
R6776:Hexa UTSW 9 59558072 missense probably damaging 1.00
R6805:Hexa UTSW 9 59563937 missense possibly damaging 0.55
R6912:Hexa UTSW 9 59539938 missense probably damaging 1.00
R7285:Hexa UTSW 9 59563939 missense probably benign 0.02
R7467:Hexa UTSW 9 59557400 critical splice donor site probably null
R7556:Hexa UTSW 9 59563299 missense probably damaging 1.00
R7574:Hexa UTSW 9 59563984 missense probably benign 0.22
R7614:Hexa UTSW 9 59561947 missense probably damaging 1.00
Posted On2013-03-25