Incidental Mutation 'R6752:Sptlc1'
ID530850
Institutional Source Beutler Lab
Gene Symbol Sptlc1
Ensembl Gene ENSMUSG00000021468
Gene Nameserine palmitoyltransferase, long chain base subunit 1
SynonymsLcb1
MMRRC Submission
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R6752 (G1)
Quality Score225.009
Status Validated
Chromosome13
Chromosomal Location53332748-53377397 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) C to A at 53335358 bp
ZygosityHeterozygous
Amino Acid Change Lysine to Asparagine at position 437 (K437N)
Ref Sequence ENSEMBL: ENSMUSP00000021920 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000021920]
Predicted Effect possibly damaging
Transcript: ENSMUST00000021920
AA Change: K437N

PolyPhen 2 Score 0.671 (Sensitivity: 0.86; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000021920
Gene: ENSMUSG00000021468
AA Change: K437N

DomainStartEndE-ValueType
transmembrane domain 20 40 N/A INTRINSIC
Pfam:Aminotran_1_2 98 464 9.5e-44 PFAM
Meta Mutation Damage Score 0.0685 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.6%
  • 10x: 98.2%
  • 20x: 94.8%
Validation Efficiency 98% (55/56)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a member of the class-II pyridoxal-phosphate-dependent aminotransferase family. The encoded protein is the long chain base subunit 1 of serine palmitoyltransferase. Serine palmitoyltransferase converts L-serine and palmitoyl-CoA to 3-oxosphinganine with pyridoxal 5'-phosphate and is the key enzyme in sphingolipid biosynthesis. Mutations in this gene were identified in patients with hereditary sensory neuropathy type 1. Alternatively spliced variants encoding different isoforms have been identified. Pseudogenes of this gene have been defined on chromosomes 1, 6, 10, and 13. [provided by RefSeq, Jul 2013]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit prenatal lethality. Mice homozygous for a knock-out allele exhibit abnormal sphingolipid levels. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 57 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acaca T C 11: 84,195,483 L45S probably benign Het
Agbl2 G A 2: 90,803,074 C518Y probably damaging Het
Akt3 A T 1: 177,050,190 Y337* probably null Het
Aox1 T C 1: 58,047,239 I101T probably benign Het
Arhgap23 T C 11: 97,452,248 F241S probably damaging Het
Asmt A G X: 170,676,361 M202V probably benign Het
Atp6v0a2 A G 5: 124,641,514 E189G probably damaging Het
Birc3 G A 9: 7,857,344 A376V probably benign Het
Ccbe1 C T 18: 66,076,307 probably null Het
Chst2 C A 9: 95,404,749 E515* probably null Het
Col12a1 A T 9: 79,633,424 N2426K possibly damaging Het
Dmrt2 A G 19: 25,678,342 N435S probably damaging Het
Dnah14 A G 1: 181,593,452 K123E probably benign Het
Dock4 T A 12: 40,820,617 L1452Q probably damaging Het
Galnt7 G A 8: 57,652,951 R10C probably damaging Het
Gm16506 A G 14: 43,727,419 I22T unknown Het
H2-Q6 A G 17: 35,428,127 T292A probably damaging Het
Ifne A G 4: 88,880,082 M33T probably benign Het
Igf2r G A 17: 12,714,944 R808W probably damaging Het
Igfbp5 T C 1: 72,863,909 E169G probably damaging Het
Inppl1 G A 7: 101,832,542 R198* probably null Het
Irgm1 T C 11: 48,866,463 T174A probably damaging Het
Itih3 C T 14: 30,923,489 G21S possibly damaging Het
Klra4 G T 6: 130,062,028 Q134K probably benign Het
Mfsd1 T A 3: 67,596,603 Y309* probably null Het
Mrps10 A G 17: 47,377,815 N162S probably damaging Het
Mtmr14 T C 6: 113,240,397 F90S probably damaging Het
Myh15 A G 16: 49,182,927 D1783G probably damaging Het
Myo3b A G 2: 70,289,512 E972G probably damaging Het
Myt1 G T 2: 181,801,082 V455F probably damaging Het
Nbea T A 3: 55,968,309 T1647S probably benign Het
Nbea A T 3: 56,037,219 S575T probably benign Het
Ntn4 A G 10: 93,734,175 N466S probably benign Het
Olfr1113 A G 2: 87,213,044 M51V probably benign Het
Olfr1468-ps1 T A 19: 13,375,526 L188H unknown Het
Olfr197 T A 16: 59,186,331 N51Y probably damaging Het
Pcdhgb4 T A 18: 37,720,651 I33N probably damaging Het
Pi4ka A G 16: 17,376,982 L184P possibly damaging Het
Pom121l2 T G 13: 21,981,769 F70C probably damaging Het
Psmb5 T C 14: 54,616,755 T89A probably benign Het
Rab11fip2 T C 19: 59,907,043 D471G probably damaging Het
Rnh1 A G 7: 141,163,441 V207A probably benign Het
Sh3tc2 C A 18: 61,961,037 T49N probably benign Het
Skint4 T C 4: 112,119,863 M158T possibly damaging Het
Skint7 T A 4: 111,980,266 H80Q probably benign Het
Smg1 A G 7: 118,163,316 probably benign Het
Sostdc1 T C 12: 36,314,412 V40A probably benign Het
Stat2 T C 10: 128,283,753 F503L probably damaging Het
Syt16 A T 12: 74,229,213 probably null Het
Tspyl1 T C 10: 34,282,587 S103P probably benign Het
Ube4a A T 9: 44,925,948 S1053R probably damaging Het
Vipr1 A G 9: 121,653,893 N58S probably damaging Het
Zfp184 C A 13: 21,959,408 A428E probably damaging Het
Zfp292 A C 4: 34,808,593 F1484V possibly damaging Het
Zfp599 G A 9: 22,249,544 H442Y probably damaging Het
Zfp944 G A 17: 22,339,519 T249I probably benign Het
Zkscan14 T A 5: 145,195,506 H405L probably damaging Het
Other mutations in Sptlc1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00811:Sptlc1 APN 13 53367378 missense probably damaging 0.98
IGL01354:Sptlc1 APN 13 53333951 missense probably benign
IGL01773:Sptlc1 APN 13 53377298 missense probably damaging 0.96
IGL01876:Sptlc1 APN 13 53374012 missense probably benign 0.02
R0390:Sptlc1 UTSW 13 53337612 missense probably benign 0.06
R1371:Sptlc1 UTSW 13 53351624 missense probably benign
R1961:Sptlc1 UTSW 13 53358880 missense probably benign
R2179:Sptlc1 UTSW 13 53351639 missense probably damaging 1.00
R2513:Sptlc1 UTSW 13 53337640 missense possibly damaging 0.61
R4357:Sptlc1 UTSW 13 53374032 missense probably damaging 1.00
R4989:Sptlc1 UTSW 13 53351656 missense probably damaging 0.97
R5055:Sptlc1 UTSW 13 53342182 missense probably benign 0.02
R6415:Sptlc1 UTSW 13 53351692 critical splice acceptor site probably null
R7283:Sptlc1 UTSW 13 53344878 missense probably benign 0.03
R7548:Sptlc1 UTSW 13 53367932 missense possibly damaging 0.84
R7731:Sptlc1 UTSW 13 53333957 missense probably benign 0.00
Predicted Primers PCR Primer
(F):5'- AGTCACCTAGGAGGACACTC -3'
(R):5'- TTTGCCTTGAGAACAGTAGGGG -3'

Sequencing Primer
(F):5'- ACACTCAGTCCTATGATGCTTTTCAG -3'
(R):5'- ACAGTAGGGGTGCATAAGCTTTG -3'
Posted On2018-08-01