Incidental Mutation 'R5084:Smpd1'
ID 387309
Institutional Source Beutler Lab
Gene Symbol Smpd1
Ensembl Gene ENSMUSG00000037049
Gene Name sphingomyelin phosphodiesterase 1, acid lysosomal
Synonyms ASM, A-SMase, Zn-SMase, aSMase, acid sphingomyelinase
MMRRC Submission 042673-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.248) question?
Stock # R5084 (G1)
Quality Score 225
Status Not validated
Chromosome 7
Chromosomal Location 105203567-105207596 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 105206185 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tyrosine to Histidine at position 438 (Y438H)
Ref Sequence ENSEMBL: ENSMUSP00000042187 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000046983] [ENSMUST00000081165] [ENSMUST00000186814] [ENSMUST00000187057] [ENSMUST00000188001] [ENSMUST00000188368] [ENSMUST00000189072] [ENSMUST00000189265] [ENSMUST00000191011] [ENSMUST00000191601] [ENSMUST00000189378] [ENSMUST00000190369]
AlphaFold Q04519
Predicted Effect probably damaging
Transcript: ENSMUST00000046983
AA Change: Y438H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000042187
Gene: ENSMUSG00000037049
AA Change: Y438H

DomainStartEndE-ValueType
transmembrane domain 30 52 N/A INTRINSIC
SapB 85 163 1.05e-7 SMART
low complexity region 177 196 N/A INTRINSIC
Pfam:Metallophos 197 459 4.4e-21 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000081165
SMART Domains Protein: ENSMUSP00000079932
Gene: ENSMUSG00000037032

DomainStartEndE-ValueType
low complexity region 146 184 N/A INTRINSIC
WW 254 285 6.23e-5 SMART
low complexity region 287 299 N/A INTRINSIC
PTB 365 512 4.16e-38 SMART
PTB 538 667 1.76e-36 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000186814
Predicted Effect probably benign
Transcript: ENSMUST00000187057
SMART Domains Protein: ENSMUSP00000139899
Gene: ENSMUSG00000037032

DomainStartEndE-ValueType
WW 31 62 3.7e-7 SMART
low complexity region 64 76 N/A INTRINSIC
PTB 142 287 3.8e-41 SMART
PTB 313 442 9.5e-39 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000188001
Predicted Effect probably benign
Transcript: ENSMUST00000188368
SMART Domains Protein: ENSMUSP00000139788
Gene: ENSMUSG00000037032

DomainStartEndE-ValueType
WW 31 62 3.7e-7 SMART
low complexity region 64 76 N/A INTRINSIC
PTB 142 289 1.8e-40 SMART
PTB 315 444 9.5e-39 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000189072
SMART Domains Protein: ENSMUSP00000139575
Gene: ENSMUSG00000037032

DomainStartEndE-ValueType
Pfam:WW 1 24 8.1e-5 PFAM
low complexity region 28 40 N/A INTRINSIC
PTB 106 253 1.8e-40 SMART
PTB 279 408 9.5e-39 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000210934
Predicted Effect probably benign
Transcript: ENSMUST00000211614
Predicted Effect noncoding transcript
Transcript: ENSMUST00000191250
Predicted Effect noncoding transcript
Transcript: ENSMUST00000211307
Predicted Effect probably benign
Transcript: ENSMUST00000189265
SMART Domains Protein: ENSMUSP00000140137
Gene: ENSMUSG00000037032

DomainStartEndE-ValueType
Pfam:PID 1 34 2.3e-6 PFAM
PTB 63 192 9.5e-39 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000191011
SMART Domains Protein: ENSMUSP00000140973
Gene: ENSMUSG00000037032

DomainStartEndE-ValueType
low complexity region 146 184 N/A INTRINSIC
WW 254 285 6.23e-5 SMART
low complexity region 287 299 N/A INTRINSIC
PTB 365 510 6.86e-39 SMART
PTB 536 665 1.76e-36 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000191601
SMART Domains Protein: ENSMUSP00000140116
Gene: ENSMUSG00000037032

DomainStartEndE-ValueType
low complexity region 146 184 N/A INTRINSIC
WW 254 285 3.7e-7 SMART
low complexity region 287 299 N/A INTRINSIC
PTB 365 512 1.8e-40 SMART
PTB 538 667 9.5e-39 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000189378
SMART Domains Protein: ENSMUSP00000140979
Gene: ENSMUSG00000037032

DomainStartEndE-ValueType
low complexity region 146 184 N/A INTRINSIC
WW 254 285 6.23e-5 SMART
low complexity region 287 299 N/A INTRINSIC
PTB 365 510 6.86e-39 SMART
PTB 536 665 1.76e-36 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000190369
SMART Domains Protein: ENSMUSP00000140486
Gene: ENSMUSG00000037032

DomainStartEndE-ValueType
Pfam:WW 1 24 8.1e-5 PFAM
low complexity region 28 40 N/A INTRINSIC
PTB 106 253 1.8e-40 SMART
PTB 279 408 9.5e-39 SMART
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.4%
  • 10x: 96.3%
  • 20x: 92.4%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene is a lysosomal acid sphingomyelinase that converts sphingomyelin to ceramide. The encoded protein also has phospholipase C activity. Defects in this gene are a cause of Niemann-Pick disease type A (NPA) and Niemann-Pick disease type B (NPB). Multiple transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2010]
PHENOTYPE: Nullizygous mutations cause tremors, ataxia, altered lipid homeostasis, increased foam cell number, Purkinje cell loss and premature death, and may lead to hepatosplenomegaly, hunched posture, reduced weight, abnormal apoptosis, sperm defects, dyspnea, and high susceptibility to bacterial infection. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 57 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acp3 T A 9: 104,204,116 (GRCm39) E59D probably damaging Het
Akap7 T A 10: 25,155,640 (GRCm39) probably benign Het
Anpep C A 7: 79,476,618 (GRCm39) probably null Het
Aste1 T A 9: 105,274,886 (GRCm39) Y314* probably null Het
Ccdc183 G A 2: 25,498,802 (GRCm39) T497I probably damaging Het
Cd4 A T 6: 124,847,402 (GRCm39) I254N probably damaging Het
Crot G T 5: 9,019,994 (GRCm39) H449Q probably damaging Het
Dact2 A T 17: 14,418,214 (GRCm39) W164R possibly damaging Het
Dapk3 C A 10: 81,026,152 (GRCm39) probably null Het
Dnase1l1 C T X: 73,320,644 (GRCm39) probably null Het
Fbrsl1 G A 5: 110,527,272 (GRCm39) probably benign Het
Flg T C 3: 93,184,922 (GRCm39) F15L probably damaging Het
Fscn2 A G 11: 120,252,686 (GRCm39) D51G probably damaging Het
H2-Ob G T 17: 34,460,102 (GRCm39) G71V probably damaging Het
Hmgcs1 T C 13: 120,161,520 (GRCm39) V104A possibly damaging Het
Hs3st4 G T 7: 123,996,518 (GRCm39) D395Y probably damaging Het
Itgb4 C T 11: 115,874,983 (GRCm39) R447W probably benign Het
Ldlrad3 G A 2: 101,900,329 (GRCm39) R58C probably damaging Het
Lpin1 A G 12: 16,626,983 (GRCm39) S188P probably damaging Het
Mamdc2 G T 19: 23,336,516 (GRCm39) T331K possibly damaging Het
Matr3 G A 18: 35,715,135 (GRCm39) S195N probably damaging Het
Nktr T C 9: 121,577,176 (GRCm39) Y390H possibly damaging Het
Notch3 C T 17: 32,376,864 (GRCm39) probably null Het
Olfm3 T C 3: 114,698,202 (GRCm39) probably null Het
Or10ak11 A G 4: 118,686,767 (GRCm39) V290A probably damaging Het
Or2a20 T C 6: 43,194,594 (GRCm39) L249P probably damaging Het
Or5h25 C T 16: 58,930,436 (GRCm39) C179Y possibly damaging Het
Or7e173 T A 9: 19,938,551 (GRCm39) I228F probably damaging Het
Or7g17 T A 9: 18,768,632 (GRCm39) M237K probably benign Het
Pask A G 1: 93,249,819 (GRCm39) V527A probably benign Het
Pcdha6 A T 18: 37,102,016 (GRCm39) N403I probably damaging Het
Peg3 T C 7: 6,710,848 (GRCm39) E1458G probably damaging Het
Pip4k2b G A 11: 97,610,569 (GRCm39) T386M probably damaging Het
Pkd1l1 T C 11: 8,892,004 (GRCm39) M272V probably benign Het
Plcb4 A G 2: 135,844,571 (GRCm39) E163G probably damaging Het
Plk5 C A 10: 80,194,723 (GRCm39) R149S possibly damaging Het
Pou4f3 A T 18: 42,528,933 (GRCm39) Y292F probably damaging Het
Rasgef1c A G 11: 49,860,332 (GRCm39) K272E probably damaging Het
Rbl2 C T 8: 91,841,759 (GRCm39) T942M probably benign Het
Sipa1l3 G A 7: 29,048,000 (GRCm39) S247F probably damaging Het
Smarca4 T C 9: 21,572,059 (GRCm39) L777P probably damaging Het
Sorl1 T C 9: 41,887,673 (GRCm39) K2052R probably benign Het
Spata31d1c C A 13: 65,182,944 (GRCm39) P162Q probably damaging Het
Spmip9 A G 6: 70,892,688 (GRCm39) S20P possibly damaging Het
Ston1 A T 17: 88,944,002 (GRCm39) E469D probably benign Het
Syde2 AGTTC AGTTCGTTC 3: 145,707,164 (GRCm39) probably null Het
Syde2 CAGTT CAGTTAGTT 3: 145,707,163 (GRCm39) probably null Het
Taar5 T A 10: 23,846,836 (GRCm39) L78Q probably damaging Het
Tas2r114 A T 6: 131,666,251 (GRCm39) L259* probably null Het
Topaz1 T A 9: 122,577,883 (GRCm39) H264Q probably benign Het
Vcl G T 14: 21,059,027 (GRCm39) V548L possibly damaging Het
Vmn2r57 C A 7: 41,075,974 (GRCm39) probably null Het
Vmn2r92 A G 17: 18,405,439 (GRCm39) *861W probably null Het
Ylpm1 T G 12: 85,076,095 (GRCm39) V940G probably damaging Het
Zfp236 A G 18: 82,627,556 (GRCm39) S1500P probably damaging Het
Zfp384 G T 6: 125,000,642 (GRCm39) probably benign Het
Zfp786 T C 6: 47,796,953 (GRCm39) M662V probably benign Het
Other mutations in Smpd1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00493:Smpd1 APN 7 105,205,848 (GRCm39) missense probably damaging 0.99
IGL01147:Smpd1 APN 7 105,204,943 (GRCm39) missense probably damaging 1.00
IGL01526:Smpd1 APN 7 105,203,982 (GRCm39) missense probably benign 0.01
IGL01541:Smpd1 APN 7 105,205,033 (GRCm39) missense possibly damaging 0.48
IGL01619:Smpd1 APN 7 105,204,549 (GRCm39) missense possibly damaging 0.89
IGL01924:Smpd1 APN 7 105,204,655 (GRCm39) missense probably benign 0.01
IGL03004:Smpd1 APN 7 105,205,881 (GRCm39) missense possibly damaging 0.82
R0782:Smpd1 UTSW 7 105,204,550 (GRCm39) missense possibly damaging 0.80
R1445:Smpd1 UTSW 7 105,205,881 (GRCm39) missense possibly damaging 0.82
R1489:Smpd1 UTSW 7 105,205,761 (GRCm39) splice site probably null
R3683:Smpd1 UTSW 7 105,204,609 (GRCm39) missense probably damaging 1.00
R3685:Smpd1 UTSW 7 105,204,609 (GRCm39) missense probably damaging 1.00
R3977:Smpd1 UTSW 7 105,205,108 (GRCm39) missense probably benign 0.29
R4850:Smpd1 UTSW 7 105,205,192 (GRCm39) missense probably benign
R6316:Smpd1 UTSW 7 105,204,709 (GRCm39) missense probably benign 0.19
R6429:Smpd1 UTSW 7 105,206,135 (GRCm39) missense probably damaging 1.00
R6672:Smpd1 UTSW 7 105,204,480 (GRCm39) missense probably benign
R7156:Smpd1 UTSW 7 105,203,693 (GRCm39) unclassified probably benign
R7883:Smpd1 UTSW 7 105,206,192 (GRCm39) missense probably damaging 1.00
R8261:Smpd1 UTSW 7 105,204,520 (GRCm39) missense probably benign 0.01
R9287:Smpd1 UTSW 7 105,204,442 (GRCm39) missense probably benign 0.14
R9406:Smpd1 UTSW 7 105,203,750 (GRCm39) missense possibly damaging 0.62
R9461:Smpd1 UTSW 7 105,204,789 (GRCm39) missense probably damaging 1.00
R9496:Smpd1 UTSW 7 105,205,202 (GRCm39) critical splice donor site probably null
X0021:Smpd1 UTSW 7 105,206,852 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- GAACTACTGTCTTCCCTGGGTC -3'
(R):5'- CCAGATTGTGAGACTCTGTGC -3'

Sequencing Primer
(F):5'- GGGTCCATGTTCACCTTCCTG -3'
(R):5'- ACTCTGTGCTTGAGGGAATTGC -3'
Posted On 2016-06-06