Incidental Mutation 'R4773:Asah2'
ID 367727
Institutional Source Beutler Lab
Gene Symbol Asah2
Ensembl Gene ENSMUSG00000024887
Gene Name N-acylsphingosine amidohydrolase 2
Synonyms neutral/alkaline ceramidase
MMRRC Submission 042411-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.453) question?
Stock # R4773 (G1)
Quality Score 225
Status Validated
Chromosome 19
Chromosomal Location 31984654-32061469 bp(-) (GRCm38)
Type of Mutation missense
DNA Base Change (assembly) A to T at 32052858 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change Methionine to Lysine at position 138 (M138K)
Ref Sequence ENSEMBL: ENSMUSP00000093830 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000096119]
AlphaFold Q9JHE3
Predicted Effect probably damaging
Transcript: ENSMUST00000096119
AA Change: M138K

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000093830
Gene: ENSMUSG00000024887
AA Change: M138K

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 0.8828 question?
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 94.2%
Validation Efficiency 100% (89/89)
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: 82 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4931409K22Rik A G 5: 24,550,598 probably null Het
9230009I02Rik A G 11: 51,091,262 noncoding transcript Het
Actl7b T C 4: 56,740,972 I129V probably benign Het
Adipor2 A G 6: 119,359,086 L225P probably benign Het
Arhgap25 A G 6: 87,496,071 F35L probably benign Het
Asxl1 T A 2: 153,401,985 M1486K probably damaging Het
B4galt4 T A 16: 38,752,296 S114R probably benign Het
Brpf3 T G 17: 28,821,259 S885A probably benign Het
Cacna1g G T 11: 94,411,472 H1944N possibly damaging Het
Ccdc110 G A 8: 45,943,208 C712Y probably damaging Het
Ccdc175 A T 12: 72,136,048 I399N probably damaging Het
Cct8l1 A T 5: 25,517,756 T490S probably benign Het
Cd109 CATTTATTTATTTATTTATTTATTTATTTATTTAT CATTTATTTATTTATTTATTTATTTATTTATTTATTTAT 9: 78,712,500 probably benign Het
Copa A G 1: 172,105,220 N371D probably damaging Het
Cpeb1 A T 7: 81,355,947 H381Q probably benign Het
Cyp2d40 T A 15: 82,761,562 I81F possibly damaging Het
Dscc1 A T 15: 55,080,258 D405E probably benign Het
Ece1 A G 4: 137,945,153 D369G probably benign Het
Exd2 T C 12: 80,475,818 V17A possibly damaging Het
Fam111a A T 19: 12,588,408 N507I possibly damaging Het
Flnc T C 6: 29,445,039 V719A possibly damaging Het
Fscb C T 12: 64,473,690 G334D probably damaging Het
Glud1 T C 14: 34,321,825 probably null Het
Gm8126 T A 14: 43,261,615 Y180* probably null Het
Grip2 G A 6: 91,782,432 P347L possibly damaging Het
H60b C T 10: 22,288,745 probably benign Het
Hist1h1d T C 13: 23,555,402 S105P probably damaging Het
Itga6 T C 2: 71,822,444 V217A probably benign Het
Kndc1 G A 7: 139,924,031 W1083* probably null Het
Limch1 A T 5: 67,027,507 D613V probably damaging Het
Lpl T A 8: 68,896,751 C310S probably damaging Het
March1 T A 8: 66,387,224 C220S probably benign Het
Mbd5 A C 2: 49,274,611 H308P probably damaging Het
Med13 T C 11: 86,276,920 D2003G probably damaging Het
Mettl16 T A 11: 74,817,301 V442D possibly damaging Het
Mstn A T 1: 53,062,108 T115S probably benign Het
Nfil3 A G 13: 52,968,014 S285P probably damaging Het
Olfr218 A C 1: 173,204,229 Y291S probably damaging Het
Olfr645 A G 7: 104,084,295 S262P probably damaging Het
Otof A G 5: 30,394,682 V321A probably benign Het
Pcdha8 G T 18: 36,994,573 A703S probably damaging Het
Pcdhb18 A G 18: 37,490,454 Y279C probably damaging Het
Pdgfa T C 5: 138,993,296 D51G probably benign Het
Pdzd8 A G 19: 59,300,860 Y703H probably damaging Het
Pecr G T 1: 72,267,435 P229Q probably damaging Het
Phkg1 G T 5: 129,873,273 probably null Het
Plxnb2 A T 15: 89,166,947 H356Q probably benign Het
Polr1b T C 2: 129,105,328 I191T probably benign Het
Ppp4r3a A G 12: 101,082,767 L35P possibly damaging Het
Rasa2 C T 9: 96,544,417 G792D probably benign Het
Rps11-ps4 T C 12: 51,297,623 noncoding transcript Het
Sema3g A G 14: 31,220,709 D89G probably benign Het
Shroom3 G T 5: 92,943,086 V1151F probably damaging Het
Slfn8 A G 11: 83,017,393 V108A probably damaging Het
Smg9 T A 7: 24,407,594 M221K possibly damaging Het
Soga1 G T 2: 157,030,569 Q953K probably benign Het
Sos1 A G 17: 80,398,231 S1304P probably damaging Het
Spert T A 14: 75,583,106 Y393F probably damaging Het
Sqle C A 15: 59,317,839 A110E possibly damaging Het
Stab2 G A 10: 86,907,371 Q1154* probably null Het
Taf4b A G 18: 14,804,520 T217A probably benign Het
Tex15 T C 8: 33,582,732 V2769A probably benign Het
Tmem156 A T 5: 65,080,159 C53S probably damaging Het
Tmtc3 T A 10: 100,457,139 K452N possibly damaging Het
Tns2 C T 15: 102,108,934 R281C probably damaging Het
Tph1 T C 7: 46,656,952 E195G probably damaging Het
Trpc6 T A 9: 8,609,851 Y107N possibly damaging Het
Tsga10 G A 1: 37,835,525 T93I probably damaging Het
Ttc25 C A 11: 100,549,916 N74K probably benign Het
Ttn T A 2: 76,741,434 N26372Y probably damaging Het
Tubd1 T C 11: 86,555,302 L256P possibly damaging Het
Txnrd2 C G 16: 18,440,819 A126G probably benign Het
Vmn1r210 T G 13: 22,827,204 K304T probably benign Het
Vps25 T C 11: 101,258,829 S160P probably benign Het
Vrk3 T A 7: 44,775,476 D438E probably benign Het
Vwa5b1 A G 4: 138,581,755 L708P probably benign Het
Washc3 C T 10: 88,219,262 Q105* probably null Het
Wdr83os T A 8: 85,080,781 probably benign Het
Wwc1 T C 11: 35,867,296 H741R probably benign Het
Zan T C 5: 137,436,313 probably benign Het
Zdhhc4 A T 5: 143,326,176 L14I possibly damaging Het
Zfp568 T A 7: 29,997,770 D38E 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
R4930:Asah2 UTSW 19 32052906 missense probably benign 0.35
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'- ACTCATAACGATGACGAGTCG -3'
(R):5'- CTCTTCTGATAGGATGGTGCC -3'

Sequencing Primer
(F):5'- AGGAAGGGCATCCACCTATGTATC -3'
(R):5'- TGCCTGGCTCCTGAAGAAGTTC -3'
Posted On 2015-12-29