Incidental Mutation 'R1489:Smpd1'
ID 163601
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 039541-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.305) question?
Stock # R1489 (G1)
Quality Score 225
Status Validated
Chromosome 7
Chromosomal Location 105203567-105207596 bp(+) (GRCm39)
Type of Mutation splice site (2301 bp from exon)
DNA Base Change (assembly) T to C at 105205761 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Gene Model predicted gene model for transcript(s): [ENSMUST00000046983] [ENSMUST00000081165] [ENSMUST00000186814] [ENSMUST00000187057] [ENSMUST00000188001] [ENSMUST00000188368] [ENSMUST00000189072] [ENSMUST00000189265] [ENSMUST00000189378] [ENSMUST00000190369] [ENSMUST00000191011] [ENSMUST00000191601]
AlphaFold Q04519
Predicted Effect probably damaging
Transcript: ENSMUST00000046983
AA Change: I376T

PolyPhen 2 Score 0.990 (Sensitivity: 0.72; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000042187
Gene: ENSMUSG00000037049
AA Change: I376T

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 null
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 null
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 null
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 null
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 null
Transcript: ENSMUST00000211614
Predicted Effect noncoding transcript
Transcript: ENSMUST00000191250
Predicted Effect noncoding transcript
Transcript: ENSMUST00000211307
Predicted Effect probably null
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 null
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 null
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 null
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 null
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 0.9545 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.4%
  • 10x: 96.7%
  • 20x: 93.9%
Validation Efficiency 96% (52/54)
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: 49 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2700097O09Rik A G 12: 55,106,295 (GRCm39) S143P possibly damaging Het
4930522H14Rik T C 4: 109,362,654 (GRCm39) K218E possibly damaging Het
Abcb1a T A 5: 8,736,300 (GRCm39) probably null Het
Adam39 A G 8: 41,278,031 (GRCm39) T141A possibly damaging Het
Adam6b T A 12: 113,455,071 (GRCm39) S629R probably benign Het
Ap3b2 C A 7: 81,113,438 (GRCm39) E924* probably null Het
Armc3 A T 2: 19,314,858 (GRCm39) Y856F probably benign Het
Asap1 A G 15: 64,044,579 (GRCm39) L142P probably damaging Het
Atg9a T A 1: 75,162,734 (GRCm39) D427V probably damaging Het
Atl2 G A 17: 80,160,135 (GRCm39) A17V probably benign Het
Atxn2l A T 7: 126,095,639 (GRCm39) S379T probably damaging Het
C1ql3 G T 2: 13,015,453 (GRCm39) P69Q possibly damaging Het
Cap2 A T 13: 46,763,111 (GRCm39) I114F probably damaging Het
Ccdc168 A G 1: 44,096,950 (GRCm39) F1383L probably benign Het
Ccdc168 T C 1: 44,100,667 (GRCm39) I144V probably benign Het
Cox16 T C 12: 81,521,389 (GRCm39) N135S probably null Het
Dnajc13 A T 9: 104,108,234 (GRCm39) H180Q possibly damaging Het
Dpy19l3 A T 7: 35,424,835 (GRCm39) Y73* probably null Het
Duox2 T A 2: 122,123,877 (GRCm39) M436L probably benign Het
Exoc6 T A 19: 37,585,568 (GRCm39) M481K possibly damaging Het
Fbxw2 GCCCCC GCCCCCCCC 2: 34,702,829 (GRCm39) probably benign Het
Fmn1 T A 2: 113,195,557 (GRCm39) V419E unknown Het
Fndc4 T C 5: 31,450,795 (GRCm39) *232W probably null Het
Foxc1 C T 13: 31,992,595 (GRCm39) R469* probably null Het
Fsip2 A G 2: 82,810,155 (GRCm39) H2158R probably benign Het
Ghdc C T 11: 100,659,083 (GRCm39) G373D probably benign Het
Gm10330 A T 12: 23,830,032 (GRCm39) S50T probably benign Het
Hlx G T 1: 184,464,184 (GRCm39) A52D probably damaging Het
Lonrf1 A G 8: 36,690,108 (GRCm39) V650A probably damaging Het
Map1a T C 2: 121,130,918 (GRCm39) V578A possibly damaging Het
Mbd3 C G 10: 80,229,740 (GRCm39) D190H probably damaging Het
Mcpt9 T C 14: 56,264,976 (GRCm39) K175R probably benign Het
Mia3 A G 1: 183,120,121 (GRCm39) S85P probably benign Het
Myrip T C 9: 120,261,595 (GRCm39) F403L probably damaging Het
Nox4 A G 7: 86,954,097 (GRCm39) Y134C probably damaging Het
Numb A G 12: 83,842,217 (GRCm39) L642P probably damaging Het
Pappa A T 4: 65,099,185 (GRCm39) Y568F possibly damaging Het
Pdzrn4 T C 15: 92,575,593 (GRCm39) L333P probably benign Het
Prl A T 13: 27,241,619 (GRCm39) S3C probably damaging Het
Ptprc T C 1: 138,047,824 (GRCm39) T60A possibly damaging Het
Rbm10 C T X: 20,503,903 (GRCm39) probably benign Het
Slc7a7 C T 14: 54,646,103 (GRCm39) R120H probably damaging Het
Spta1 A G 1: 174,058,891 (GRCm39) E1942G probably damaging Het
Tmem38a A G 8: 73,333,479 (GRCm39) Y66C probably damaging Het
Tnnt1 A T 7: 4,510,524 (GRCm39) Y232* probably null Het
Tpte T C 8: 22,839,405 (GRCm39) probably null Het
Virma T C 4: 11,521,164 (GRCm39) V907A probably damaging Het
Vmn1r174 C T 7: 23,453,981 (GRCm39) Q216* probably null Het
Zswim3 T C 2: 164,661,901 (GRCm39) V127A 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
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'- ATGAAGCTCTCAACCCTCTGAGGC -3'
(R):5'- TCTAGGAAGTGAAGCGACACTCCC -3'

Sequencing Primer
(F):5'- CTTTACTGTCAGAGGAGCCC -3'
(R):5'- ACACAGCAGCCTGCTTCTC -3'
Posted On 2014-03-28