Incidental Mutation 'IGL02955:Hexb'
ID 365095
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 # IGL02955
Quality Score
Status
Chromosome 13
Chromosomal Location 97312839-97334865 bp(-) (GRCm39)
Type of Mutation utr 3 prime
DNA Base Change (assembly) A to G at 97317584 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000125088 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022169] [ENSMUST00000022170] [ENSMUST00000042084] [ENSMUST00000161639] [ENSMUST00000161825]
AlphaFold P20060
Predicted Effect probably benign
Transcript: ENSMUST00000022169
SMART Domains Protein: ENSMUSP00000022169
Gene: ENSMUSG00000021665

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: ENSMUST00000222700
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: 39 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abr T A 11: 76,309,991 (GRCm39) H840L probably damaging Het
Anks1 A G 17: 28,273,291 (GRCm39) D970G probably damaging Het
B4galnt4 A G 7: 140,644,591 (GRCm39) K162R probably null Het
Bicd2 T C 13: 49,531,691 (GRCm39) V311A probably benign Het
Cblif T C 19: 11,725,027 (GRCm39) L6P possibly damaging Het
Ccdc162 A G 10: 41,437,123 (GRCm39) L489P probably damaging Het
Cd55 G T 1: 130,377,219 (GRCm39) T38K probably damaging Het
Cep250 C A 2: 155,817,676 (GRCm39) A749E probably benign Het
Cntn3 G T 6: 102,255,262 (GRCm39) T212N probably damaging Het
Cntnap5c T A 17: 58,199,097 (GRCm39) probably benign Het
Dclre1c A G 2: 3,439,089 (GRCm39) E83G probably damaging Het
Dok4 T C 8: 95,592,256 (GRCm39) N244S probably damaging Het
Dync2h1 T C 9: 7,142,864 (GRCm39) T1151A probably benign Het
Fer G A 17: 64,298,712 (GRCm39) probably null Het
Ints5 T C 19: 8,875,014 (GRCm39) L991P probably damaging Het
Itga5 T C 15: 103,259,261 (GRCm39) D722G possibly damaging Het
Jup A G 11: 100,267,565 (GRCm39) I586T probably benign Het
Lig1 G A 7: 13,030,273 (GRCm39) G417R probably damaging Het
Lig4 A G 8: 10,022,103 (GRCm39) I559T possibly damaging Het
Mcm3ap A G 10: 76,343,300 (GRCm39) I1731V probably benign Het
Mfsd13a T G 19: 46,356,192 (GRCm39) V99G possibly damaging Het
Nelfcd A G 2: 174,264,391 (GRCm39) H153R probably damaging Het
Nlrp1b A G 11: 71,060,637 (GRCm39) Y724H possibly damaging Het
Npas3 C A 12: 53,548,048 (GRCm39) N101K probably damaging Het
Nuf2 A G 1: 169,334,807 (GRCm39) probably benign Het
Or10am5 T C 7: 6,517,682 (GRCm39) T249A probably damaging Het
Or11g7 C T 14: 50,691,442 (GRCm39) T311I probably damaging Het
Or5c1 A T 2: 37,222,013 (GRCm39) M85L probably benign Het
Polr3c A G 3: 96,621,628 (GRCm39) Y423H probably damaging Het
Pomgnt2 A G 9: 121,811,956 (GRCm39) L275P probably damaging Het
Ptprj T G 2: 90,298,808 (GRCm39) probably null Het
Pxdn T C 12: 30,053,156 (GRCm39) I931T probably damaging Het
Rad51b C T 12: 79,371,856 (GRCm39) Q190* probably null Het
Rpl10a T C 17: 28,547,967 (GRCm39) I36T probably damaging Het
Tagap1 T C 17: 7,223,781 (GRCm39) H305R probably damaging Het
Tmem154 A G 3: 84,591,508 (GRCm39) probably benign Het
Vil1 A G 1: 74,457,682 (GRCm39) E105G probably benign Het
Wdfy4 C A 14: 32,798,241 (GRCm39) C2055F probably damaging Het
Zfat T C 15: 68,052,963 (GRCm39) N277S probably damaging Het
Other mutations in Hexb
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00509:Hexb APN 13 97,318,437 (GRCm39) missense probably damaging 1.00
IGL02010:Hexb APN 13 97,313,353 (GRCm39) missense probably benign 0.01
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
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 2015-12-18