Incidental Mutation 'R9461:Smpd1'
ID 714869
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
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.305) question?
Stock # R9461 (G1)
Quality Score 225.009
Status Not validated
Chromosome 7
Chromosomal Location 105203567-105207596 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 105204789 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Phenylalanine at position 223 (L223F)
Ref Sequence ENSEMBL: ENSMUSP00000042187 (fasta)
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: L223F

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000042187
Gene: ENSMUSG00000037049
AA Change: L223F

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 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: 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: ENSMUST00000211614
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 98.9%
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: 52 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcb9 T C 5: 124,228,176 (GRCm39) T22A possibly damaging Het
Abhd18 A T 3: 40,859,319 (GRCm39) probably null Het
Aox1 G A 1: 58,116,736 (GRCm39) probably null Het
Arpp21 C A 9: 111,965,704 (GRCm39) R422L probably damaging Het
Ccdc190 G A 1: 169,761,489 (GRCm39) G197D probably benign Het
Cdc42bpa G T 1: 179,969,861 (GRCm39) L1243F probably damaging Het
Ces2b T A 8: 105,564,011 (GRCm39) F462I probably benign Het
Cfap45 A G 1: 172,362,894 (GRCm39) E295G possibly damaging Het
Chst13 G A 6: 90,286,506 (GRCm39) P152L probably damaging Het
Col24a1 G T 3: 145,186,879 (GRCm39) E1227* probably null Het
Col5a1 A T 2: 27,922,616 (GRCm39) D1717V unknown Het
Dab2 T C 15: 6,460,435 (GRCm39) S448P possibly damaging Het
Dnajb1 T C 8: 84,335,173 (GRCm39) probably null Het
Dock9 C T 14: 121,842,601 (GRCm39) G1223D probably benign Het
Elp2 A G 18: 24,765,869 (GRCm39) R670G probably damaging Het
Eppk1 T C 15: 75,994,668 (GRCm39) I738V probably benign Het
Gas2l2 T A 11: 83,313,031 (GRCm39) R760S probably damaging Het
H1f7 C T 15: 98,155,138 (GRCm39) A4T probably damaging Het
Kif17 G A 4: 138,005,253 (GRCm39) V273I probably damaging Het
Klhdc4 T C 8: 122,526,224 (GRCm39) D336G probably damaging Het
Lmod2 A G 6: 24,603,568 (GRCm39) N181S probably benign Het
Lrp8 G A 4: 107,700,515 (GRCm39) G151D possibly damaging Het
Mb21d2 C T 16: 28,647,261 (GRCm39) V238M probably damaging Het
Mfsd4b3-ps T G 10: 39,823,247 (GRCm39) I338L probably benign Het
Nkain2 C T 10: 32,766,125 (GRCm39) A112T unknown Het
Or14c41 T A 7: 86,235,247 (GRCm39) Y255N possibly damaging Het
Or52n2b T A 7: 104,565,583 (GRCm39) I307F probably benign Het
Or5b12b T A 19: 12,861,875 (GRCm39) V210E possibly damaging Het
Or5i1 A G 2: 87,612,883 (GRCm39) I2V probably benign Het
Pacs2 A G 12: 113,010,727 (GRCm39) I126V probably benign Het
Phyhipl T C 10: 70,395,243 (GRCm39) Y321C possibly damaging Het
Ppm1k T C 6: 57,487,720 (GRCm39) S368G probably damaging Het
Ranbp6 T C 19: 29,787,163 (GRCm39) D1063G possibly damaging Het
Sars2 T C 7: 28,449,438 (GRCm39) M322T probably benign Het
Serbp1 G A 6: 67,244,313 (GRCm39) R78H probably benign Het
Sfxn2 T A 19: 46,574,192 (GRCm39) N127K probably damaging Het
Sgsm1 A T 5: 113,423,898 (GRCm39) probably null Het
Slc22a22 T C 15: 57,108,342 (GRCm39) Y491C probably damaging Het
Slc22a22 T A 15: 57,127,052 (GRCm39) I6F probably damaging Het
Spem1 T C 11: 69,711,741 (GRCm39) K308E probably benign Het
Spsb1 A T 4: 149,990,907 (GRCm39) C220* probably null Het
Syngap1 T A 17: 27,173,962 (GRCm39) S190R possibly damaging Het
Tars3 T C 7: 65,339,719 (GRCm39) S705P possibly damaging Het
Tbc1d16 G T 11: 119,044,781 (GRCm39) F553L probably damaging Het
Thbs2 A G 17: 14,910,435 (GRCm39) Y55H probably damaging Het
Tmem220 T C 11: 66,924,979 (GRCm39) I138T possibly damaging Het
Tut7 G A 13: 59,963,512 (GRCm39) T282I probably damaging Het
Txnl1 T C 18: 63,810,050 (GRCm39) N131S probably benign Het
Vat1 T C 11: 101,353,846 (GRCm39) T175A possibly damaging Het
Veph1 T A 3: 66,029,066 (GRCm39) D651V probably benign Het
Zfp281 T A 1: 136,554,500 (GRCm39) S493T probably benign Het
Zpld2 G A 4: 133,929,312 (GRCm39) P331L 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
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
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'- CGTTCAGTTCTGAGCCCATC -3'
(R):5'- AGACATCATGGGCAGGGATATC -3'

Sequencing Primer
(F):5'- CTCTTGTGGACACTGGGACATC -3'
(R):5'- GGATATCTCCCGTCCAGTACAC -3'
Posted On 2022-06-15