Incidental Mutation 'R4930:Asah2'
ID 381200
Institutional Source Beutler Lab
Gene Symbol Asah2
Ensembl Gene ENSMUSG00000024887
Gene Name N-acylsphingosine amidohydrolase 2
Synonyms neutral/alkaline ceramidase
MMRRC Submission 042531-MU
Accession Numbers
Is this an essential gene? Possibly non essential (E-score: 0.362) question?
Stock # R4930 (G1)
Quality Score 225
Status Validated
Chromosome 19
Chromosomal Location 31984654-32061469 bp(-) (GRCm38)
Type of Mutation missense
DNA Base Change (assembly) T to A at 32052906 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Valine at position 122 (D122V)
Ref Sequence ENSEMBL: ENSMUSP00000093830 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000096119]
AlphaFold Q9JHE3
Predicted Effect probably benign
Transcript: ENSMUST00000096119
AA Change: D122V

PolyPhen 2 Score 0.351 (Sensitivity: 0.90; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000093830
Gene: ENSMUSG00000024887
AA Change: D122V

DomainStartEndE-ValueType
transmembrane domain 12 34 N/A INTRINSIC
low complexity region 56 67 N/A INTRINSIC
Pfam:Ceramidase_alk 78 584 1.4e-222 PFAM
Pfam:Ceramidse_alk_C 586 753 8e-50 PFAM
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 99.0%
  • 3x: 98.2%
  • 10x: 95.9%
  • 20x: 91.1%
Validation Efficiency 99% (88/89)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Ceramidases (EC 3.5.1.23), such as ASAH2, catalyze hydrolysis of the N-acyl linkage of ceramide, a second messenger in a variety of cellular events, to produce sphingosine. Sphingosine exerts both mitogenic and apoptosis-inducing activities, and its phosphorylated form functions as an intra- and intercellular second messenger (see MIM 603730) (Mitsutake et al., 2001 [PubMed 11328816]).[supplied by OMIM, Mar 2008]
PHENOTYPE: Mice homozygous for a targeted null mutation are defective in the intestinal digestion of dietary ceramide but exhibit a normal life span with no obvious abnormalities or significant alterations in total ceramide levels in major organ tissues. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 81 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930447C04Rik C T 12: 72,906,234 E242K possibly damaging Het
A930011G23Rik A G 5: 99,222,404 M499T possibly damaging Het
Abcb8 G A 5: 24,400,781 V196M possibly damaging Het
Ahnak T C 19: 9,010,967 M3205T possibly damaging Het
Ankrd1 A G 19: 36,115,033 Y265H probably damaging Het
Apeh A G 9: 108,087,825 S446P probably benign Het
Apip C A 2: 103,091,881 Y197* probably null Het
Arhgef11 T G 3: 87,728,594 V925G probably damaging Het
Arid4b T C 13: 14,187,477 V929A probably damaging Het
B2m A T 2: 122,151,647 D116V possibly damaging Het
BC067074 G T 13: 113,327,662 G1453C probably damaging Het
Bhmt-ps1 A G 4: 26,369,184 noncoding transcript Het
Cacna1g T A 11: 94,444,073 I803F probably damaging Het
Ccdc43 A T 11: 102,690,285 V113E probably damaging Het
Cenpj A T 14: 56,534,781 Y388* probably null Het
Chd3 G A 11: 69,354,208 probably benign Het
Chil3 C T 3: 106,164,208 D47N possibly damaging Het
Colgalt2 A G 1: 152,499,959 T361A possibly damaging Het
Cops3 C A 11: 59,835,367 probably benign Het
Crb2 G T 2: 37,783,314 G74V probably damaging Het
Cyp20a1 A T 1: 60,366,719 Y224F probably damaging Het
Diaph3 A G 14: 87,141,166 probably benign Het
Dnah3 A T 7: 119,951,681 Y3127* probably null Het
Eef1akmt3 A C 10: 127,041,355 S14A possibly damaging Het
Ehf C A 2: 103,266,857 R250L probably damaging Het
Eps8l1 G A 7: 4,460,916 R13Q possibly damaging Het
Frem2 A C 3: 53,656,315 V257G possibly damaging Het
Gc T C 5: 89,439,589 T259A probably benign Het
Gm4952 A T 19: 12,627,012 N263Y probably benign Het
Gpcpd1 T A 2: 132,546,874 H326L probably damaging Het
Helz T C 11: 107,620,168 F617L probably damaging Het
Hoxb4 T C 11: 96,318,836 Y23H probably damaging Het
Hsf4 T A 8: 105,272,698 probably null Het
Ighv1-81 T C 12: 115,920,304 D109G probably damaging Het
Irx4 T C 13: 73,268,913 V476A probably benign Het
Katnb1 T A 8: 95,097,294 probably null Het
L3mbtl1 A G 2: 162,965,772 Y490C probably damaging Het
Lemd2 A G 17: 27,193,832 probably null Het
Lrrc38 A T 4: 143,369,868 T250S probably damaging Het
Map3k8 A T 18: 4,349,215 Y34* probably null Het
Mgst1 T A 6: 138,153,509 F79I probably benign Het
Midn T C 10: 80,155,355 S357P probably benign Het
Mmp3 T A 9: 7,447,640 D208E probably benign Het
Mrps26 A G 2: 130,564,942 E163G probably damaging Het
Mycbpap A T 11: 94,503,157 M371K probably benign Het
Mynn A C 3: 30,607,042 N91T probably damaging Het
Nek11 A G 9: 105,300,066 L292P probably damaging Het
Nid1 A T 13: 13,510,011 R1228W probably damaging Het
Nphs2 T C 1: 156,320,929 Y121H probably damaging Het
Olfr1020 T A 2: 85,849,893 I147N probably benign Het
Olfr1166 A C 2: 88,124,340 I215S probably benign Het
Olfr1178 G A 2: 88,391,940 R231H probably benign Het
Olfr1497 T C 19: 13,795,551 H20R probably benign Het
Olfr161 T G 16: 3,592,435 L13R probably damaging Het
Olfr204 C A 16: 59,314,873 C178F probably damaging Het
Olfr872 T C 9: 20,260,017 I59T probably damaging Het
P2rx7 C T 5: 122,670,479 T308M probably damaging Het
Prdx6 C T 1: 161,241,693 probably benign Het
Rad54b T A 4: 11,615,579 D862E probably damaging Het
Ripor1 A G 8: 105,617,182 Y344C probably damaging Het
Rnf112 T C 11: 61,453,465 M43V probably benign Het
Rp1l1 A G 14: 64,032,206 N1747S probably benign Het
Rps27 A G 3: 90,212,999 V22A probably damaging Het
Spaca1 A G 4: 34,044,236 V86A possibly damaging Het
Spdef A G 17: 27,718,162 Y156H probably damaging Het
Specc1 A C 11: 62,118,958 E433D possibly damaging Het
Srpr T A 9: 35,215,030 F506L probably benign Het
Stxbp5 A G 10: 9,760,866 probably benign Het
Syne1 C T 10: 5,052,777 R8046Q probably damaging Het
Tbx5 T A 5: 119,883,025 S365R probably benign Het
Terb1 G T 8: 104,447,948 P698Q probably benign Het
Tmbim7 T A 5: 3,661,948 Y27* probably null Het
Tmem106c C A 15: 97,965,028 A60E possibly damaging Het
Ttc26 A T 6: 38,391,540 Y174F probably damaging Het
Ttc6 T A 12: 57,673,823 probably null Het
Ttn T C 2: 76,732,370 I28747V possibly damaging Het
Unc13a C T 8: 71,630,504 probably null Het
Wdr81 T C 11: 75,451,924 D839G probably benign Het
Wfdc15a G C 2: 164,199,805 Q33E probably benign Het
Zfp456 T C 13: 67,366,946 R214G probably benign Het
Zfp457 T A 13: 67,294,100 Y137F probably damaging Het
Other mutations in Asah2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01108:Asah2 APN 19 32008681 splice site probably benign
IGL02001:Asah2 APN 19 32043539 nonsense probably null
IGL02228:Asah2 APN 19 32016714 missense probably benign 0.09
IGL02377:Asah2 APN 19 32009414 missense probably benign 0.30
IGL03070:Asah2 APN 19 32006344 missense probably damaging 1.00
IGL03233:Asah2 APN 19 32054631 missense probably benign 0.18
IGL03244:Asah2 APN 19 31986942 missense probably damaging 1.00
R0008:Asah2 UTSW 19 32003731 nonsense probably null
R0103:Asah2 UTSW 19 32018977 missense probably benign 0.01
R0103:Asah2 UTSW 19 32018977 missense probably benign 0.01
R0302:Asah2 UTSW 19 32052956 missense probably benign 0.01
R0497:Asah2 UTSW 19 32054631 missense probably benign 0.18
R0614:Asah2 UTSW 19 32016728 missense probably damaging 1.00
R0639:Asah2 UTSW 19 32008639 missense probably damaging 0.99
R0715:Asah2 UTSW 19 32016776 missense probably damaging 0.97
R1332:Asah2 UTSW 19 32044941 missense probably damaging 1.00
R1336:Asah2 UTSW 19 32044941 missense probably damaging 1.00
R2045:Asah2 UTSW 19 32052956 missense probably benign 0.01
R2062:Asah2 UTSW 19 32024874 missense probably damaging 0.99
R4083:Asah2 UTSW 19 31986784 missense probably benign 0.01
R4698:Asah2 UTSW 19 32054471 splice site probably null
R4731:Asah2 UTSW 19 31995358 missense probably benign 0.41
R4732:Asah2 UTSW 19 31995358 missense probably benign 0.41
R4733:Asah2 UTSW 19 31995358 missense probably benign 0.41
R4773:Asah2 UTSW 19 32052858 missense probably damaging 1.00
R5081:Asah2 UTSW 19 32014308 missense probably benign 0.07
R5741:Asah2 UTSW 19 32008615 missense probably damaging 1.00
R5873:Asah2 UTSW 19 32003682 critical splice donor site probably null
R5905:Asah2 UTSW 19 32016514 missense probably damaging 1.00
R6027:Asah2 UTSW 19 32044951 missense probably benign 0.01
R6028:Asah2 UTSW 19 32016514 missense probably damaging 1.00
R6187:Asah2 UTSW 19 32024867 missense probably damaging 0.99
R6667:Asah2 UTSW 19 31995358 missense probably benign 0.41
R6968:Asah2 UTSW 19 32012513 missense probably benign
R7010:Asah2 UTSW 19 32054554 missense probably benign 0.00
R7404:Asah2 UTSW 19 32057854 missense probably benign 0.13
R7575:Asah2 UTSW 19 32016703 missense probably benign 0.11
R7797:Asah2 UTSW 19 32022361 missense probably damaging 1.00
R8492:Asah2 UTSW 19 32006259 missense probably benign 0.25
R8682:Asah2 UTSW 19 32052877 missense probably damaging 1.00
R8766:Asah2 UTSW 19 32057880 missense possibly damaging 0.46
R8873:Asah2 UTSW 19 32044888 critical splice donor site probably null
R8974:Asah2 UTSW 19 32052905 missense probably benign
R9088:Asah2 UTSW 19 32052960 missense probably damaging 1.00
R9405:Asah2 UTSW 19 32008645 missense possibly damaging 0.82
Predicted Primers PCR Primer
(F):5'- AACACCTTACTTTGAAGGTAGGAG -3'
(R):5'- AAGATTGCCAGTCTGATCAGTAC -3'

Sequencing Primer
(F):5'- CCTTACTTTGAAGGTAGGAGATACTC -3'
(R):5'- CTTTCTCTGTACAAATACCAAAGGC -3'
Posted On 2016-04-15