Incidental Mutation 'IGL02010:Hexb'
ID 183293
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Hexb
Ensembl Gene ENSMUSG00000021665
Gene Name hexosaminidase B
Synonyms
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # IGL02010
Quality Score
Status
Chromosome 13
Chromosomal Location 97312839-97334865 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 97313353 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Proline at position 501 (L501P)
Ref Sequence ENSEMBL: ENSMUSP00000022169 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022169] [ENSMUST00000022170] [ENSMUST00000042084] [ENSMUST00000161639] [ENSMUST00000161825]
AlphaFold P20060
Predicted Effect probably benign
Transcript: ENSMUST00000022169
AA Change: L501P

PolyPhen 2 Score 0.012 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000022169
Gene: ENSMUSG00000021665
AA Change: L501P

DomainStartEndE-ValueType
signal peptide 1 31 N/A INTRINSIC
Pfam:Glycohydro_20b2 35 157 7.1e-24 PFAM
Pfam:Glyco_hydro_20 179 496 1.2e-94 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000022170
SMART Domains Protein: ENSMUSP00000022170
Gene: ENSMUSG00000021666

DomainStartEndE-ValueType
Pfam:GTP_EFTU 66 349 9.9e-64 PFAM
Pfam:GTP_EFTU_D2 379 446 4.3e-8 PFAM
low complexity region 447 473 N/A INTRINSIC
Pfam:EFG_II 482 556 3.9e-29 PFAM
EFG_IV 558 677 2.94e-17 SMART
EFG_C 679 766 1.9e-20 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000042084
SMART Domains Protein: ENSMUSP00000048373
Gene: ENSMUSG00000021666

DomainStartEndE-ValueType
Pfam:GTP_EFTU 68 324 4.6e-64 PFAM
Pfam:GTP_EFTU_D2 354 421 4.2e-8 PFAM
low complexity region 422 448 N/A INTRINSIC
Pfam:EFG_II 457 531 3.7e-29 PFAM
EFG_IV 533 652 2.94e-17 SMART
EFG_C 654 741 1.9e-20 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000159321
Predicted Effect noncoding transcript
Transcript: ENSMUST00000160989
Predicted Effect probably benign
Transcript: ENSMUST00000161639
SMART Domains Protein: ENSMUSP00000125656
Gene: ENSMUSG00000021666

DomainStartEndE-ValueType
Pfam:GTP_EFTU 68 351 1.2e-68 PFAM
low complexity region 449 475 N/A INTRINSIC
Pfam:EFG_II 484 558 4.5e-30 PFAM
EFG_IV 560 679 2.94e-17 SMART
EFG_C 681 768 1.9e-20 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000161825
SMART Domains Protein: ENSMUSP00000125088
Gene: ENSMUSG00000021666

DomainStartEndE-ValueType
Pfam:GTP_EFTU 68 351 2.3e-64 PFAM
Pfam:GTP_EFTU_D2 381 448 1.1e-8 PFAM
low complexity region 449 475 N/A INTRINSIC
Pfam:EFG_II 484 558 7.1e-30 PFAM
EFG_IV 560 679 2.94e-17 SMART
EFG_C 681 738 3.46e-2 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000161843
Coding Region Coverage
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Hexosaminidase B is the beta subunit of the lysosomal enzyme beta-hexosaminidase that, together with the cofactor GM2 activator protein, catalyzes the degradation of the ganglioside GM2, and other molecules containing terminal N-acetyl hexosamines. Beta-hexosaminidase is composed of two subunits, alpha and beta, which are encoded by separate genes. Both beta-hexosaminidase alpha and beta subunits are members of family 20 of glycosyl hydrolases. Mutations in the alpha or beta subunit genes lead to an accumulation of GM2 ganglioside in neurons and neurodegenerative disorders termed the GM2 gangliosidoses. Beta subunit gene mutations lead to Sandhoff disease (GM2-gangliosidosis type II). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2014]
PHENOTYPE: Homozygous mutants exhibit spasticity, muscle weakness, rigidity, tremors, and ataxia beginning around 4 months of age and resulting in death about 6 weeks later. Mutants accumulate GM2 ganglioside and glycolipid GA2 in brain. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 56 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca6 T C 11: 110,110,442 (GRCm39) D569G probably benign Het
Abhd17b C T 19: 21,661,485 (GRCm39) T224I probably benign Het
Atf6b T A 17: 34,873,626 (GRCm39) S695R probably benign Het
Cdh6 A C 15: 13,034,276 (GRCm39) probably benign Het
Cep290 G T 10: 100,344,569 (GRCm39) C462F probably benign Het
Cep290 T C 10: 100,397,207 (GRCm39) S2156P probably benign Het
Cfap20dc A T 14: 8,578,384 (GRCm38) H119Q possibly damaging Het
Cit T C 5: 116,014,006 (GRCm39) F240L probably damaging Het
Col1a2 T A 6: 4,512,416 (GRCm39) probably null Het
Ctcf T A 8: 106,391,597 (GRCm39) H297Q probably damaging Het
Dhx29 T C 13: 113,103,168 (GRCm39) probably null Het
Dhx37 T G 5: 125,495,777 (GRCm39) T835P possibly damaging Het
Enc1 C T 13: 97,381,588 (GRCm39) L33F possibly damaging Het
Epyc T A 10: 97,485,563 (GRCm39) M1K probably null Het
F10 T C 8: 13,098,292 (GRCm39) I165T probably damaging Het
Fam124a T C 14: 62,824,728 (GRCm39) L74P probably damaging Het
Fam234b A G 6: 135,186,405 (GRCm39) S138G probably benign Het
Fam81a T C 9: 70,006,419 (GRCm39) K198E probably benign Het
Fbn2 T C 18: 58,170,794 (GRCm39) Y2199C probably damaging Het
Fign A C 2: 63,810,744 (GRCm39) S175R probably damaging Het
Grik1 T C 16: 87,848,396 (GRCm39) N124S possibly damaging Het
Hdac9 G T 12: 34,481,944 (GRCm39) L175M probably damaging Het
Hephl1 A C 9: 15,001,852 (GRCm39) Y163* probably null Het
Hes1 G A 16: 29,886,128 (GRCm39) G244D probably damaging Het
Igkv5-43 T C 6: 69,752,936 (GRCm39) I49V probably benign Het
Ipo5 T C 14: 121,170,789 (GRCm39) S491P probably benign Het
Jakmip2 C T 18: 43,692,158 (GRCm39) probably null Het
Lrfn5 A G 12: 61,886,469 (GRCm39) T86A probably damaging Het
Lrp1b T C 2: 41,358,954 (GRCm39) T640A probably damaging Het
M6pr G T 6: 122,292,085 (GRCm39) R139L possibly damaging Het
Myl9 A T 2: 156,620,579 (GRCm39) N39Y probably damaging Het
Nlrp3 A G 11: 59,440,361 (GRCm39) D646G probably benign Het
Nlrp5 A T 7: 23,116,797 (GRCm39) M174L probably benign Het
Nnmt T A 9: 48,503,331 (GRCm39) I232F probably damaging Het
Nrg1 T C 8: 32,408,171 (GRCm39) T21A probably benign Het
Or5t15 C T 2: 86,681,541 (GRCm39) C167Y possibly damaging Het
Or6c65 A G 10: 129,604,136 (GRCm39) Y257C probably benign Het
Pcare T A 17: 72,056,459 (GRCm39) T1073S probably benign Het
Pcdh7 T G 5: 58,286,597 (GRCm39) N1224K probably benign Het
Pde4a T C 9: 21,114,850 (GRCm39) probably null Het
Pfkfb3 T C 2: 11,488,805 (GRCm39) T320A probably benign Het
Plekhm2 T C 4: 141,364,730 (GRCm39) probably benign Het
Rabgap1l C T 1: 160,299,641 (GRCm39) R584H probably damaging Het
Rnf157 T A 11: 116,287,052 (GRCm39) N57I probably damaging Het
Rtf1 G A 2: 119,531,747 (GRCm39) probably null Het
Sap130 C A 18: 31,782,655 (GRCm39) R189S probably damaging Het
Slc34a1 T G 13: 24,003,025 (GRCm39) V225G probably benign Het
Smg1 T C 7: 117,785,369 (GRCm39) probably benign Het
Tecta G A 9: 42,248,489 (GRCm39) T1971I probably damaging Het
Tlcd5 A T 9: 43,022,859 (GRCm39) V165E probably damaging Het
Tmem263 T A 10: 84,950,274 (GRCm39) S22T probably benign Het
Tnrc18 A T 5: 142,773,049 (GRCm39) F410L unknown Het
Ttc27 T G 17: 75,087,906 (GRCm39) probably benign Het
Vmn1r45 A T 6: 89,910,668 (GRCm39) C101S probably damaging Het
Wdr17 T C 8: 55,112,738 (GRCm39) K781E probably damaging Het
Xkr6 C T 14: 64,056,653 (GRCm39) T188M probably benign Het
Other mutations in Hexb
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00509:Hexb APN 13 97,318,437 (GRCm39) missense probably damaging 1.00
IGL02126:Hexb APN 13 97,314,532 (GRCm39) missense possibly damaging 0.93
IGL02303:Hexb APN 13 97,313,401 (GRCm39) missense probably damaging 1.00
IGL02955:Hexb APN 13 97,317,584 (GRCm39) utr 3 prime probably benign
IGL02988:Hexb UTSW 13 97,334,729 (GRCm39) missense unknown
R0311:Hexb UTSW 13 97,320,327 (GRCm39) unclassified probably benign
R0470:Hexb UTSW 13 97,314,507 (GRCm39) missense probably damaging 0.97
R0520:Hexb UTSW 13 97,317,618 (GRCm39) missense probably benign 0.00
R0893:Hexb UTSW 13 97,322,135 (GRCm39) missense probably benign 0.02
R1869:Hexb UTSW 13 97,327,767 (GRCm39) missense probably benign
R2295:Hexb UTSW 13 97,322,120 (GRCm39) missense probably damaging 1.00
R2884:Hexb UTSW 13 97,320,208 (GRCm39) missense probably damaging 1.00
R4237:Hexb UTSW 13 97,313,259 (GRCm39) intron probably benign
R4238:Hexb UTSW 13 97,313,259 (GRCm39) intron probably benign
R4239:Hexb UTSW 13 97,313,259 (GRCm39) intron probably benign
R4689:Hexb UTSW 13 97,317,600 (GRCm39) missense probably damaging 1.00
R5166:Hexb UTSW 13 97,318,512 (GRCm39) missense probably benign 0.13
R6665:Hexb UTSW 13 97,315,893 (GRCm39) missense probably benign 0.01
R7379:Hexb UTSW 13 97,317,672 (GRCm39) missense probably damaging 1.00
R7553:Hexb UTSW 13 97,334,681 (GRCm39) missense probably benign 0.01
R8307:Hexb UTSW 13 97,330,707 (GRCm39) missense probably benign 0.02
R8830:Hexb UTSW 13 97,330,762 (GRCm39) missense probably benign
R8980:Hexb UTSW 13 97,330,689 (GRCm39) missense probably damaging 0.99
R9144:Hexb UTSW 13 97,317,599 (GRCm39) missense probably damaging 1.00
R9155:Hexb UTSW 13 97,314,414 (GRCm39) missense probably damaging 1.00
R9186:Hexb UTSW 13 97,325,836 (GRCm39) missense probably damaging 1.00
R9393:Hexb UTSW 13 97,313,336 (GRCm39) nonsense probably null
R9546:Hexb UTSW 13 97,322,176 (GRCm39) missense probably damaging 1.00
Posted On 2014-05-07