Incidental Mutation 'R3977:Smpd1'
ID 311075
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 040940-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.248) question?
Stock # R3977 (G1)
Quality Score 225
Status Validated
Chromosome 7
Chromosomal Location 105203567-105207596 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 105205108 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Phenylalanine to Serine at position 329 (F329S)
Ref Sequence ENSEMBL: ENSMUSP00000042187 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000046983] [ENSMUST00000081165] [ENSMUST00000186814] [ENSMUST00000187057] [ENSMUST00000188001] [ENSMUST00000188368] [ENSMUST00000189072] [ENSMUST00000189265] [ENSMUST00000191011] [ENSMUST00000189378] [ENSMUST00000190369] [ENSMUST00000191601]
AlphaFold Q04519
Predicted Effect probably benign
Transcript: ENSMUST00000046983
AA Change: F329S

PolyPhen 2 Score 0.292 (Sensitivity: 0.91; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000042187
Gene: ENSMUSG00000037049
AA Change: F329S

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: ENSMUST00000211307
Predicted Effect probably benign
Transcript: ENSMUST00000211614
Predicted Effect noncoding transcript
Transcript: ENSMUST00000210934
Predicted Effect noncoding transcript
Transcript: ENSMUST00000191250
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: 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
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
Meta Mutation Damage Score 0.1020 question?
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 93.7%
Validation Efficiency 96% (50/52)
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: 53 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ace C T 11: 105,872,664 (GRCm39) P942L possibly damaging Het
Adam28 A G 14: 68,848,443 (GRCm39) V671A probably benign Het
Arfgef1 A G 1: 10,279,859 (GRCm39) V236A probably benign Het
B020004C17Rik G T 14: 57,254,645 (GRCm39) M156I possibly damaging Het
Bicral T A 17: 47,141,917 (GRCm39) M1L unknown Het
Brpf3 A G 17: 29,026,016 (GRCm39) E363G possibly damaging Het
Ccdc96 T C 5: 36,642,510 (GRCm39) L172P possibly damaging Het
Cln3 G A 7: 126,179,308 (GRCm39) probably benign Het
Dnah7c T C 1: 46,668,071 (GRCm39) I1526T possibly damaging Het
Entr1 T A 2: 26,274,805 (GRCm39) N364I probably damaging Het
Fmo3 T G 1: 162,786,147 (GRCm39) E281A probably damaging Het
Frem2 A G 3: 53,559,491 (GRCm39) I1672T probably benign Het
Gbp2b A G 3: 142,309,470 (GRCm39) I194V probably benign Het
Gprc6a C A 10: 51,497,197 (GRCm39) V449L probably benign Het
Hk1 A G 10: 62,126,098 (GRCm39) V396A probably benign Het
Hoxc13 T C 15: 102,829,675 (GRCm39) V18A possibly damaging Het
Hr A G 14: 70,801,024 (GRCm39) T699A probably benign Het
Il19 A T 1: 130,863,770 (GRCm39) C74S probably damaging Het
Krt1c T C 15: 101,719,562 (GRCm39) T703A unknown Het
Lrig2 A T 3: 104,365,160 (GRCm39) V664E probably damaging Het
Lrrc37a T C 11: 103,348,430 (GRCm39) K2755R unknown Het
Man1c1 G C 4: 134,430,749 (GRCm39) P11R probably damaging Het
Mbtd1 A G 11: 93,796,001 (GRCm39) N13D probably benign Het
Mfsd4b5 T C 10: 39,850,704 (GRCm39) probably benign Het
Nras A G 3: 102,967,541 (GRCm39) I46V probably benign Het
Oasl1 C T 5: 115,070,957 (GRCm39) T274I probably damaging Het
Ogfod2 C A 5: 124,251,272 (GRCm39) probably null Het
Or10q3 C A 19: 11,847,869 (GRCm39) R237L possibly damaging Het
Or10v1 T A 19: 11,873,880 (GRCm39) F165Y probably damaging Het
Or11a4 T C 17: 37,536,049 (GRCm39) V11A probably benign Het
Or2w1b T A 13: 21,300,031 (GRCm39) H56Q probably benign Het
Or4c3 C A 2: 89,852,089 (GRCm39) G107V probably damaging Het
Or6c5 C T 10: 129,074,377 (GRCm39) R120C probably damaging Het
Pkmyt1 A G 17: 23,954,305 (GRCm39) M362V probably benign Het
Ppfia2 A G 10: 106,666,490 (GRCm39) T399A possibly damaging Het
Ppp1r12b A G 1: 134,693,713 (GRCm39) S983P probably benign Het
Ptpn22 A G 3: 103,780,957 (GRCm39) probably benign Het
Raph1 A T 1: 60,537,682 (GRCm39) D491E probably benign Het
Rc3h1 A G 1: 160,786,969 (GRCm39) probably null Het
Rtn4 T C 11: 29,643,819 (GRCm39) L5P probably benign Het
Slc23a4 C T 6: 34,930,723 (GRCm39) V400I probably benign Het
Slco1a5 A G 6: 142,204,698 (GRCm39) probably benign Het
Sycp2l A G 13: 41,295,440 (GRCm39) I334M probably damaging Het
Tas2r103 A G 6: 133,013,280 (GRCm39) L262P probably benign Het
Ten1 G A 11: 116,107,771 (GRCm39) probably null Het
Tfap2d C G 1: 19,174,718 (GRCm39) S57C possibly damaging Het
Tnr A G 1: 159,719,593 (GRCm39) M957V probably benign Het
Trbv13-3 A G 6: 41,107,079 (GRCm39) probably benign Het
Trp53rkb C T 2: 166,637,446 (GRCm39) A134V possibly damaging Het
Trp63 A G 16: 25,639,490 (GRCm39) probably benign Het
Vmn2r112 T A 17: 22,822,096 (GRCm39) V258E probably damaging Het
Vmn2r74 T C 7: 85,607,345 (GRCm39) Y126C probably benign Het
Vmn2r96 T A 17: 18,817,941 (GRCm39) I698N probably damaging 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
R4850:Smpd1 UTSW 7 105,205,192 (GRCm39) missense probably benign
R5084:Smpd1 UTSW 7 105,206,185 (GRCm39) missense probably damaging 1.00
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'- AGCCTGTTGAAAGGACTGGG -3'
(R):5'- GACACCTGCTGGAGTAGTCTAC -3'

Sequencing Primer
(F):5'- GCCGGCCCTTTTGAAATG -3'
(R):5'- GCTGGAGTAGTCTACCCAGTTC -3'
Posted On 2015-04-29