Incidental Mutation 'R9703:Smpd3'
ID 729666
Institutional Source Beutler Lab
Gene Symbol Smpd3
Ensembl Gene ENSMUSG00000031906
Gene Name sphingomyelin phosphodiesterase 3, neutral
Synonyms 4631433G07Rik, neutral sphingomyelinase II, nSMase2, fro, Nsm2
MMRRC Submission
Accession Numbers
Essential gene? Probably essential (E-score: 0.922) question?
Stock # R9703 (G1)
Quality Score 225.009
Status Not validated
Chromosome 8
Chromosomal Location 106979180-107064597 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 106991713 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Histidine to Leucine at position 280 (H280L)
Ref Sequence ENSEMBL: ENSMUSP00000069255 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000067512] [ENSMUST00000212896]
AlphaFold Q9JJY3
Predicted Effect probably damaging
Transcript: ENSMUST00000067512
AA Change: H280L

PolyPhen 2 Score 0.985 (Sensitivity: 0.74; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000069255
Gene: ENSMUSG00000031906
AA Change: H280L

DomainStartEndE-ValueType
transmembrane domain 15 37 N/A INTRINSIC
transmembrane domain 57 79 N/A INTRINSIC
low complexity region 178 189 N/A INTRINSIC
Pfam:Exo_endo_phos 321 639 1.2e-15 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000212896
AA Change: H280L

PolyPhen 2 Score 0.985 (Sensitivity: 0.74; Specificity: 0.96)
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.3%
  • 20x: 98.2%
Validation Efficiency
MGI Phenotype PHENOTYPE: Homozygous null mice exhibit dwarfism, delayed sexual and gonad maturation, delayed ossification of the long bones, and reduced serum levels of thyroxine, triiodothyronine, cortisol, and insulin-like growth factor. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 51 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adam20 T A 8: 41,248,971 (GRCm39) N360K probably damaging Het
Aoc1l2 A G 6: 48,909,629 (GRCm39) T625A probably benign Het
Apob T A 12: 8,030,507 (GRCm39) L82Q probably damaging Het
Arhgap30 T G 1: 171,235,339 (GRCm39) L571R probably damaging Het
Atg9a C T 1: 75,162,431 (GRCm39) C493Y probably damaging Het
Brip1 T C 11: 85,952,830 (GRCm39) T984A possibly damaging Het
Btbd9 A G 17: 30,749,200 (GRCm39) V38A possibly damaging Het
Crocc2 C A 1: 93,130,444 (GRCm39) D908E probably benign Het
Crybg3 C G 16: 59,375,939 (GRCm39) A58P probably damaging Het
Cts7 T C 13: 61,504,350 (GRCm39) N71S probably damaging Het
Ddx46 A G 13: 55,824,635 (GRCm39) Y962C probably damaging Het
Dock10 G A 1: 80,517,540 (GRCm39) R1373C probably damaging Het
Dock9 A T 14: 121,781,989 (GRCm39) *2043R probably null Het
Efs A T 14: 55,156,871 (GRCm39) V388E possibly damaging Het
Esyt1 C T 10: 128,354,796 (GRCm39) probably null Het
Extl3 G T 14: 65,292,103 (GRCm39) R907S probably damaging Het
Fcgbp G A 7: 27,806,400 (GRCm39) V2123M probably damaging Het
Gas2l3 C T 10: 89,249,943 (GRCm39) A392T probably benign Het
Golm1 A T 13: 59,797,433 (GRCm39) D137E probably benign Het
Grxcr2 T C 18: 42,124,988 (GRCm39) D140G possibly damaging Het
H2ac19 G A 3: 96,147,557 (GRCm39) R4C probably benign Het
Hrh1 G A 6: 114,457,979 (GRCm39) C420Y probably benign Het
Ints13 A T 6: 146,459,063 (GRCm39) L316Q probably damaging Het
Iws1 T A 18: 32,212,738 (GRCm39) D55E probably damaging Het
Kcnrg CACAACAA CACAA 14: 61,845,009 (GRCm39) probably benign Het
Klrc2 G C 6: 129,633,407 (GRCm39) S215* probably null Het
Muc5b A G 7: 141,425,535 (GRCm39) T4727A possibly damaging Het
Nsd3 T C 8: 26,131,228 (GRCm39) S198P probably benign Het
Or2n1b A T 17: 38,459,856 (GRCm39) I126F possibly damaging Het
Or6c214 A T 10: 129,591,286 (GRCm39) I11N possibly damaging Het
Ovch2 T A 7: 107,383,777 (GRCm39) I523F probably damaging Het
Pals1 T A 12: 78,843,850 (GRCm39) I18K probably benign Het
Pcdhb1 T A 18: 37,399,019 (GRCm39) D323E probably damaging Het
Pfkl T A 10: 77,826,142 (GRCm39) probably null Het
Pigc T A 1: 161,798,176 (GRCm39) F53I probably benign Het
Pramel29 T A 4: 143,939,510 (GRCm39) D9V probably damaging Het
Prph2 G A 17: 47,234,447 (GRCm39) A339T unknown Het
Prrc2a T C 17: 35,378,320 (GRCm39) K452E unknown Het
Rab36 T C 10: 74,886,474 (GRCm39) W151R possibly damaging Het
Sdk1 A G 5: 142,100,283 (GRCm39) T1438A possibly damaging Het
Slc25a17 A T 15: 81,224,193 (GRCm39) I55K probably damaging Het
Smg1 A T 7: 117,739,744 (GRCm39) I3401N possibly damaging Het
Srsf10 A G 4: 135,591,153 (GRCm39) H202R probably benign Het
Swap70 C T 7: 109,872,512 (GRCm39) R376C probably damaging Het
Syde1 G T 10: 78,421,557 (GRCm39) L665M probably damaging Het
Tha1 A G 11: 117,761,863 (GRCm39) V126A probably damaging Het
Tln2 T C 9: 67,293,938 (GRCm39) H230R probably damaging Het
Tnc G A 4: 63,889,412 (GRCm39) A1698V probably benign Het
Twist2 C A 1: 91,729,744 (GRCm39) S132R probably damaging Het
Ubr1 C T 2: 120,732,092 (GRCm39) C1170Y probably damaging Het
Vwa1 G A 4: 155,857,336 (GRCm39) P154L probably damaging Het
Other mutations in Smpd3
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL03380:Smpd3 APN 8 106,986,291 (GRCm39) missense probably benign 0.01
BB010:Smpd3 UTSW 8 106,982,254 (GRCm39) missense probably benign
BB020:Smpd3 UTSW 8 106,982,254 (GRCm39) missense probably benign
G1citation:Smpd3 UTSW 8 106,992,596 (GRCm39) start gained probably benign
R0240:Smpd3 UTSW 8 106,991,788 (GRCm39) missense probably damaging 0.96
R0240:Smpd3 UTSW 8 106,991,788 (GRCm39) missense probably damaging 0.96
R0456:Smpd3 UTSW 8 106,986,288 (GRCm39) missense probably benign
R0759:Smpd3 UTSW 8 106,991,860 (GRCm39) missense probably benign 0.34
R0799:Smpd3 UTSW 8 106,991,421 (GRCm39) missense possibly damaging 0.92
R1544:Smpd3 UTSW 8 106,992,199 (GRCm39) missense possibly damaging 0.70
R1756:Smpd3 UTSW 8 106,991,603 (GRCm39) missense probably benign
R2937:Smpd3 UTSW 8 106,991,452 (GRCm39) missense probably damaging 1.00
R2939:Smpd3 UTSW 8 106,984,039 (GRCm39) missense probably benign 0.00
R4614:Smpd3 UTSW 8 106,986,371 (GRCm39) missense probably damaging 1.00
R5829:Smpd3 UTSW 8 106,991,512 (GRCm39) missense probably benign 0.15
R6822:Smpd3 UTSW 8 106,992,596 (GRCm39) start gained probably benign
R6891:Smpd3 UTSW 8 106,991,300 (GRCm39) missense probably damaging 1.00
R6962:Smpd3 UTSW 8 106,991,851 (GRCm39) missense probably benign 0.34
R6965:Smpd3 UTSW 8 106,986,513 (GRCm39) missense probably damaging 1.00
R7344:Smpd3 UTSW 8 106,991,825 (GRCm39) missense probably damaging 1.00
R7394:Smpd3 UTSW 8 106,991,642 (GRCm39) missense probably damaging 0.99
R7823:Smpd3 UTSW 8 106,982,254 (GRCm39) missense probably benign
R7825:Smpd3 UTSW 8 106,982,254 (GRCm39) missense probably benign
R7933:Smpd3 UTSW 8 106,982,254 (GRCm39) missense probably benign
R7974:Smpd3 UTSW 8 106,982,254 (GRCm39) missense probably benign
R7975:Smpd3 UTSW 8 106,982,254 (GRCm39) missense probably benign
R7976:Smpd3 UTSW 8 106,982,254 (GRCm39) missense probably benign
R7977:Smpd3 UTSW 8 106,986,526 (GRCm39) missense probably benign 0.11
R7987:Smpd3 UTSW 8 106,986,526 (GRCm39) missense probably benign 0.11
R8260:Smpd3 UTSW 8 106,984,047 (GRCm39) missense probably benign 0.13
R8264:Smpd3 UTSW 8 106,991,290 (GRCm39) missense probably damaging 1.00
R8292:Smpd3 UTSW 8 106,991,422 (GRCm39) missense probably benign 0.08
R8432:Smpd3 UTSW 8 106,984,309 (GRCm39) critical splice acceptor site probably null
R8494:Smpd3 UTSW 8 106,981,982 (GRCm39) missense probably damaging 0.99
R8779:Smpd3 UTSW 8 106,992,121 (GRCm39) missense probably benign 0.37
R8787:Smpd3 UTSW 8 106,982,377 (GRCm39) missense probably damaging 1.00
R9005:Smpd3 UTSW 8 106,984,058 (GRCm39) missense probably benign 0.02
R9008:Smpd3 UTSW 8 106,984,058 (GRCm39) missense probably benign 0.02
R9355:Smpd3 UTSW 8 106,991,825 (GRCm39) missense probably damaging 1.00
R9516:Smpd3 UTSW 8 106,992,119 (GRCm39) missense probably benign 0.03
R9698:Smpd3 UTSW 8 106,992,296 (GRCm39) missense possibly damaging 0.54
Z1177:Smpd3 UTSW 8 106,991,474 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- CAAAGGCTTCATCAGGGTGG -3'
(R):5'- CCTCTGTGGAATACAAGGGG -3'

Sequencing Primer
(F):5'- TTCATCAGGGTGGCGCCTC -3'
(R):5'- CTCTGTGGAATACAAGGGGGATGG -3'
Posted On 2022-10-06