Incidental Mutation 'R1445:Smpd1'
ID 158788
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 039500-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.305) question?
Stock # R1445 (G1)
Quality Score 225
Status Validated
Chromosome 7
Chromosomal Location 105203567-105207596 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 105205881 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Glycine at position 416 (D416G)
Ref Sequence ENSEMBL: ENSMUSP00000042187 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000046983] [ENSMUST00000081165] [ENSMUST00000186814] [ENSMUST00000187057] [ENSMUST00000188001] [ENSMUST00000188368] [ENSMUST00000189265] [ENSMUST00000189378] [ENSMUST00000190369] [ENSMUST00000191011] [ENSMUST00000189072] [ENSMUST00000191601]
AlphaFold Q04519
Predicted Effect possibly damaging
Transcript: ENSMUST00000046983
AA Change: D416G

PolyPhen 2 Score 0.820 (Sensitivity: 0.84; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000042187
Gene: ENSMUSG00000037049
AA Change: D416G

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 noncoding transcript
Transcript: ENSMUST00000211307
Predicted Effect noncoding transcript
Transcript: ENSMUST00000191250
Predicted Effect noncoding transcript
Transcript: ENSMUST00000210934
Predicted Effect probably benign
Transcript: ENSMUST00000211614
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: 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: 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: 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 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 0.1217 question?
Coding Region Coverage
  • 1x: 98.8%
  • 3x: 97.7%
  • 10x: 93.9%
  • 20x: 84.0%
Validation Efficiency 96% (101/105)
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: 94 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700061I17Rik G T 3: 116,861,385 (GRCm39) noncoding transcript Het
2300003K06Rik G T 11: 99,728,793 (GRCm39) Q17K probably benign Het
Abca16 T C 7: 120,119,256 (GRCm39) V999A probably benign Het
Actn3 C T 19: 4,915,483 (GRCm39) probably benign Het
Agap2 T A 10: 126,926,981 (GRCm39) probably benign Het
Ago3 C A 4: 126,265,580 (GRCm39) R278L probably benign Het
Aldh1a2 T C 9: 71,192,492 (GRCm39) V449A possibly damaging Het
Alkbh2 C T 5: 114,262,287 (GRCm39) E148K probably damaging Het
Aplnr A G 2: 84,967,353 (GRCm39) Y126C probably damaging Het
Apob T C 12: 8,066,084 (GRCm39) I4351T possibly damaging Het
Ash1l T C 3: 88,914,659 (GRCm39) L1763P probably benign Het
Aspn T C 13: 49,710,849 (GRCm39) S165P possibly damaging Het
Atg13 A T 2: 91,510,335 (GRCm39) V349E probably damaging Het
Atp1b2 T A 11: 69,493,309 (GRCm39) probably null Het
B3glct A T 5: 149,677,604 (GRCm39) D411V probably damaging Het
Bcar3 A T 3: 122,316,840 (GRCm39) I255F probably damaging Het
Cacna1b G A 2: 24,608,148 (GRCm39) probably benign Het
Cep164 T G 9: 45,690,198 (GRCm39) E675A possibly damaging Het
Chd1l C T 3: 97,490,047 (GRCm39) E503K probably benign Het
Chst8 C A 7: 34,447,593 (GRCm39) M8I possibly damaging Het
Clec4n A G 6: 123,212,475 (GRCm39) E67G probably benign Het
Cobll1 A T 2: 64,929,480 (GRCm39) D653E probably damaging Het
Col9a1 T C 1: 24,276,579 (GRCm39) probably null Het
Crip2 T C 12: 113,107,124 (GRCm39) L30P probably damaging Het
Ctbp1 C T 5: 33,418,407 (GRCm39) V22I probably benign Het
Cwc22 T C 2: 77,747,521 (GRCm39) probably benign Het
Cyp4a32 C A 4: 115,460,147 (GRCm39) Y119* probably null Het
Dido1 G T 2: 180,313,263 (GRCm39) A463E possibly damaging Het
Dnah7a G A 1: 53,567,956 (GRCm39) P1880L probably benign Het
Dock2 T A 11: 34,189,705 (GRCm39) T1489S probably benign Het
Dsp A G 13: 38,375,907 (GRCm39) T1231A probably damaging Het
Eif2ak1 G T 5: 143,810,717 (GRCm39) probably benign Het
Entrep1 G A 19: 23,998,998 (GRCm39) T140M probably damaging Het
Epc1 A T 18: 6,452,360 (GRCm39) M233K probably damaging Het
Gigyf2 A G 1: 87,371,360 (GRCm39) probably benign Het
Greb1 T G 12: 16,757,852 (GRCm39) H58P probably damaging Het
Gtpbp1 T C 15: 79,597,649 (GRCm39) I348T possibly damaging Het
Hck A T 2: 152,970,192 (GRCm39) N64Y probably benign Het
Herc2 T C 7: 55,818,744 (GRCm39) S2812P probably damaging Het
Inpp4b T A 8: 82,679,463 (GRCm39) probably null Het
Kcnq5 A C 1: 21,475,248 (GRCm39) S473A probably benign Het
Lrat T G 3: 82,810,676 (GRCm39) D115A probably damaging Het
Lyst A G 13: 13,814,639 (GRCm39) I1131M possibly damaging Het
Man2a2 T C 7: 80,018,310 (GRCm39) D160G probably benign Het
Marf1 C T 16: 13,933,688 (GRCm39) D1567N probably benign Het
Mars1 T C 10: 127,133,857 (GRCm39) D680G possibly damaging Het
Mat1a T C 14: 40,843,797 (GRCm39) S339P probably damaging Het
Megf8 T C 7: 25,042,081 (GRCm39) S1300P probably damaging Het
Mga T C 2: 119,733,179 (GRCm39) L9S probably damaging Het
Mllt6 T C 11: 97,563,277 (GRCm39) probably benign Het
Mrpl37 A G 4: 106,921,692 (GRCm39) L179P probably benign Het
Mtnr1a G T 8: 45,540,782 (GRCm39) V248L probably benign Het
Mylk T C 16: 34,635,835 (GRCm39) S19P possibly damaging Het
Or11g1 A G 14: 50,651,858 (GRCm39) T286A probably damaging Het
Pacc1 A G 1: 191,080,559 (GRCm39) probably benign Het
Parp8 A T 13: 117,161,886 (GRCm39) probably null Het
Pcnx2 T C 8: 126,479,023 (GRCm39) D2075G probably damaging Het
Pigo A T 4: 43,021,460 (GRCm39) I494K probably benign Het
Pkd1l1 A T 11: 8,820,313 (GRCm39) D1217E probably benign Het
Pkhd1l1 T C 15: 44,369,040 (GRCm39) V895A probably benign Het
Plcb4 A T 2: 135,842,109 (GRCm39) H1031L possibly damaging Het
Plxnb1 A G 9: 108,937,989 (GRCm39) K1245R probably null Het
Pold1 C T 7: 44,192,181 (GRCm39) probably benign Het
Ptprq T C 10: 107,498,423 (GRCm39) I885V probably damaging Het
Ptprz1 A G 6: 23,050,473 (GRCm39) D1398G probably damaging Het
Pygm G A 19: 6,439,917 (GRCm39) A364T probably benign Het
Rbl1 T C 2: 157,035,018 (GRCm39) N354S probably benign Het
Scgb2b19 C T 7: 32,979,037 (GRCm39) probably null Het
Slc26a8 C T 17: 28,867,187 (GRCm39) V545M possibly damaging Het
Slc27a1 T A 8: 72,036,757 (GRCm39) probably null Het
Sorbs3 A G 14: 70,431,095 (GRCm39) V284A probably benign Het
Stfa2l1 T C 16: 35,982,154 (GRCm39) V75A probably damaging Het
Syndig1 A G 2: 149,772,841 (GRCm39) D166G probably damaging Het
Tcp10a G A 17: 7,593,406 (GRCm39) probably null Het
Themis2 T A 4: 132,510,212 (GRCm39) I663F possibly damaging Het
Thrap3 T C 4: 126,070,129 (GRCm39) Q586R probably damaging Het
Tinag C A 9: 76,952,798 (GRCm39) C62F probably damaging Het
Tmod1 T C 4: 46,090,884 (GRCm39) Y146H probably damaging Het
Tmprss4 T A 9: 45,095,683 (GRCm39) I54F possibly damaging Het
Tnks A C 8: 35,301,757 (GRCm39) probably benign Het
Trim43a GATTTATTTATTTATTTATTTATTTATTTATTTATTTATT GATTTATTTATTTATTTATTTATTTATTTATTTATTTATTTATT 9: 88,465,042 (GRCm39) probably benign Het
Trpc6 A G 9: 8,680,538 (GRCm39) E844G probably benign Het
Ubtd2 C T 11: 32,466,125 (GRCm39) R115W probably damaging Het
Ubxn6 T C 17: 56,376,042 (GRCm39) D373G probably benign Het
Upf1 T A 8: 70,794,174 (GRCm39) Q244L probably benign Het
Usp33 A G 3: 152,074,271 (GRCm39) I372M probably damaging Het
Usp34 A G 11: 23,301,629 (GRCm39) E351G probably damaging Het
Utrn A G 10: 12,554,318 (GRCm39) probably benign Het
Vmn1r78 A G 7: 11,886,508 (GRCm39) K40E possibly damaging Het
Vmn2r7 T A 3: 64,632,223 (GRCm39) M80L probably benign Het
Vps13a G T 19: 16,678,602 (GRCm39) Y1126* probably null Het
Wfdc11 T C 2: 164,506,366 (GRCm39) N60S probably benign Het
Wnk2 C T 13: 49,224,586 (GRCm39) D992N probably damaging Het
Zpbp2 C A 11: 98,444,670 (GRCm39) T66K 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
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
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'- AGCTTGTGTCTTTGCCTACAGTAGC -3'
(R):5'- GCAGTCAGAGCATTGAGGAATCCAG -3'

Sequencing Primer
(F):5'- GTCAGAGGAGCCCTATAATTACTGC -3'
(R):5'- CAGCCTTGGGTAGAGTGAC -3'
Posted On 2014-03-14