Incidental Mutation 'IGL02078:Hexa'
ID 186024
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Hexa
Ensembl Gene ENSMUSG00000025232
Gene Name hexosaminidase A
Synonyms Hex-1
Accession Numbers
Essential gene? Probably non essential (E-score: 0.206) question?
Stock # IGL02078
Quality Score
Status
Chromosome 9
Chromosomal Location 59446966-59472392 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 59464586 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Alanine at position 159 (T159A)
Ref Sequence ENSEMBL: ENSMUSP00000026262 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000026262]
AlphaFold P29416
Predicted Effect probably benign
Transcript: ENSMUST00000026262
AA Change: T159A

PolyPhen 2 Score 0.358 (Sensitivity: 0.90; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000026262
Gene: ENSMUSG00000025232
AA Change: T159A

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
Coding Region Coverage
Validation Efficiency
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: 32 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4933412E24Rik T C 15: 59,888,179 (GRCm39) D87G probably benign Het
Acap1 C T 11: 69,786,112 (GRCm39) R18Q probably damaging Het
Atp1a1 A C 3: 101,499,179 (GRCm39) V140G probably damaging Het
Bmpr1b G A 3: 141,576,498 (GRCm39) P112S possibly damaging Het
Chst8 T A 7: 34,374,759 (GRCm39) N360I possibly damaging Het
Cldn23 A T 8: 36,293,359 (GRCm39) V43E possibly damaging Het
Clta T C 4: 44,030,232 (GRCm39) F168S probably damaging Het
Cyp2c40 T C 19: 39,755,926 (GRCm39) I463V probably benign Het
E2f2 A G 4: 135,920,323 (GRCm39) D436G probably damaging Het
Fbxo24 T G 5: 137,622,611 (GRCm39) T52P probably damaging Het
Gria4 G A 9: 4,793,878 (GRCm39) A60V probably damaging Het
Grm1 C T 10: 10,565,354 (GRCm39) V985M probably benign Het
Inf2 T A 12: 112,568,048 (GRCm39) V200E probably damaging Het
Kif20b T A 19: 34,913,044 (GRCm39) V319E probably damaging Het
Klhl10 A G 11: 100,336,577 (GRCm39) D188G probably benign Het
Mobp G A 9: 119,996,980 (GRCm39) R37H probably damaging Het
Mybpc2 T A 7: 44,153,204 (GRCm39) D1086V probably damaging Het
Nadk A C 4: 155,663,860 (GRCm39) probably benign Het
Or7g33 T A 9: 19,448,749 (GRCm39) H159L probably benign Het
Per1 A G 11: 68,995,125 (GRCm39) E619G probably damaging Het
Rab3gap1 G A 1: 127,796,652 (GRCm39) probably benign Het
Rimkla A G 4: 119,325,344 (GRCm39) L355P probably damaging Het
Rnf139 A G 15: 58,771,880 (GRCm39) D635G possibly damaging Het
Sall1 T A 8: 89,757,003 (GRCm39) N1034Y probably damaging Het
Serpinb13 A T 1: 106,926,688 (GRCm39) Q228L probably damaging Het
Sin3b G T 8: 73,480,208 (GRCm39) M903I possibly damaging Het
Slco1a5 A T 6: 142,200,172 (GRCm39) M204K probably benign Het
Smo A G 6: 29,754,707 (GRCm39) D259G possibly damaging Het
Spata31g1 A C 4: 42,972,685 (GRCm39) K673Q possibly damaging Het
Sult2a4 T C 7: 13,723,469 (GRCm39) I15M probably benign Het
Ttn T A 2: 76,772,785 (GRCm39) probably null Het
Wdtc1 C A 4: 133,033,271 (GRCm39) D176Y probably damaging Het
Other mutations in Hexa
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01877:Hexa APN 9 59,471,163 (GRCm39) splice site probably benign
R0098:Hexa UTSW 9 59,465,383 (GRCm39) missense probably damaging 1.00
R0098:Hexa UTSW 9 59,465,383 (GRCm39) missense probably damaging 1.00
R0281:Hexa UTSW 9 59,461,509 (GRCm39) critical splice donor site probably null
R0364:Hexa UTSW 9 59,471,218 (GRCm39) missense probably benign 0.00
R0481:Hexa UTSW 9 59,462,693 (GRCm39) splice site probably benign
R1888:Hexa UTSW 9 59,464,586 (GRCm39) missense probably benign 0.36
R1888:Hexa UTSW 9 59,464,586 (GRCm39) missense probably benign 0.36
R2264:Hexa UTSW 9 59,462,660 (GRCm39) missense probably damaging 0.99
R3545:Hexa UTSW 9 59,464,581 (GRCm39) missense probably damaging 0.99
R4609:Hexa UTSW 9 59,464,602 (GRCm39) missense probably benign 0.32
R5777:Hexa UTSW 9 59,468,243 (GRCm39) missense probably damaging 0.99
R6041:Hexa UTSW 9 59,470,519 (GRCm39) missense probably damaging 0.99
R6403:Hexa UTSW 9 59,464,644 (GRCm39) missense probably damaging 1.00
R6776:Hexa UTSW 9 59,465,355 (GRCm39) missense probably damaging 1.00
R6805:Hexa UTSW 9 59,471,220 (GRCm39) missense possibly damaging 0.55
R6912:Hexa UTSW 9 59,447,221 (GRCm39) missense probably damaging 1.00
R7285:Hexa UTSW 9 59,471,222 (GRCm39) missense probably benign 0.02
R7467:Hexa UTSW 9 59,464,683 (GRCm39) critical splice donor site probably null
R7556:Hexa UTSW 9 59,470,582 (GRCm39) missense probably damaging 1.00
R7574:Hexa UTSW 9 59,471,267 (GRCm39) missense probably benign 0.22
R7614:Hexa UTSW 9 59,469,230 (GRCm39) missense probably damaging 1.00
R8550:Hexa UTSW 9 59,468,182 (GRCm39) missense probably benign 0.01
R9418:Hexa UTSW 9 59,464,592 (GRCm39) missense probably benign 0.07
Posted On 2014-05-07