Mutagenetix > Incidental Mutation

Incidental Mutation 'R6752:Sptlc1'

530850

Institutional Source

Beutler Lab

Gene Symbol

Sptlc1

Ensembl Gene

ENSMUSG00000021468

Gene Name

serine palmitoyltransferase, long chain base subunit 1

Synonyms

Spt1, Lcb1

MMRRC Submission

044869-MU

Accession Numbers

Essential gene?

Essential (E-score: 1.000) question?

Stock #

R6752 (G1)

Quality Score

225.009

Status

Validated

Chromosome

Chromosomal Location

53486784-53531433 bp(-) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

C to A at 53489394 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Lysine to Asparagine at position 437 (K437N)

Ref Sequence

ENSEMBL: ENSMUSP00000021920 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000021920]

AlphaFold

O35704

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

Domain	Start	End	E-Value	Type
transmembrane domain	20	40	N/A	INTRINSIC
Pfam:Aminotran_1_2	98	464	9.5e-44	PFAM

Meta Mutation Damage Score

0.0685

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
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
Acaca	T	C	11: 84,086,309 (GRCm39)	L45S	probably benign	Het
Agbl2	G	A	2: 90,633,418 (GRCm39)	C518Y	probably damaging	Het
Akt3	A	T	1: 176,877,756 (GRCm39)	Y337*	probably null	Het
Aox1	T	C	1: 58,086,398 (GRCm39)	I101T	probably benign	Het
Arhgap23	T	C	11: 97,343,074 (GRCm39)	F241S	probably damaging	Het
Asmt	A	G	X: 169,110,096 (GRCm39)	M202V	probably benign	Het
Atp6v0a2	A	G	5: 124,779,452 (GRCm39)	E189G	probably damaging	Het
Birc2	G	A	9: 7,857,345 (GRCm39)	A376V	probably benign	Het
Ccbe1	C	T	18: 66,209,378 (GRCm39)		probably null	Het
Chst2	C	A	9: 95,286,802 (GRCm39)	E515*	probably null	Het
Col12a1	A	T	9: 79,540,706 (GRCm39)	N2426K	possibly damaging	Het
Dmrt2	A	G	19: 25,655,706 (GRCm39)	N435S	probably damaging	Het
Dnah14	A	G	1: 181,421,017 (GRCm39)	K123E	probably benign	Het
Dock4	T	A	12: 40,870,616 (GRCm39)	L1452Q	probably damaging	Het
Galnt7	G	A	8: 58,105,985 (GRCm39)	R10C	probably damaging	Het
Gm16506	A	G	14: 43,964,876 (GRCm39)	I22T	unknown	Het
H2-Q6	A	G	17: 35,647,103 (GRCm39)	T292A	probably damaging	Het
Ifne	A	G	4: 88,798,319 (GRCm39)	M33T	probably benign	Het
Igf2r	G	A	17: 12,933,831 (GRCm39)	R808W	probably damaging	Het
Igfbp5	T	C	1: 72,903,068 (GRCm39)	E169G	probably damaging	Het
Inppl1	G	A	7: 101,481,749 (GRCm39)	R198*	probably null	Het
Irgm1	T	C	11: 48,757,290 (GRCm39)	T174A	probably damaging	Het
Itih3	C	T	14: 30,645,446 (GRCm39)	G21S	possibly damaging	Het
Klra4	G	T	6: 130,038,991 (GRCm39)	Q134K	probably benign	Het
Mfsd1	T	A	3: 67,503,936 (GRCm39)	Y309*	probably null	Het
Mrps10	A	G	17: 47,688,740 (GRCm39)	N162S	probably damaging	Het
Mtmr14	T	C	6: 113,217,358 (GRCm39)	F90S	probably damaging	Het
Myh15	A	G	16: 49,003,290 (GRCm39)	D1783G	probably damaging	Het
Myo3b	A	G	2: 70,119,856 (GRCm39)	E972G	probably damaging	Het
Myt1	G	T	2: 181,442,875 (GRCm39)	V455F	probably damaging	Het
Nbea	A	T	3: 55,944,640 (GRCm39)	S575T	probably benign	Het
Nbea	T	A	3: 55,875,730 (GRCm39)	T1647S	probably benign	Het
Ntn4	A	G	10: 93,570,037 (GRCm39)	N466S	probably benign	Het
Or10ag52	A	G	2: 87,043,388 (GRCm39)	M51V	probably benign	Het
Or5b114-ps1	T	A	19: 13,352,890 (GRCm39)	L188H	unknown	Het
Or5h27	T	A	16: 59,006,694 (GRCm39)	N51Y	probably damaging	Het
Pcdhgb4	T	A	18: 37,853,704 (GRCm39)	I33N	probably damaging	Het
Pi4ka	A	G	16: 17,194,846 (GRCm39)	L184P	possibly damaging	Het
Pom121l2	T	G	13: 22,165,939 (GRCm39)	F70C	probably damaging	Het
Psmb5	T	C	14: 54,854,212 (GRCm39)	T89A	probably benign	Het
Rab11fip2	T	C	19: 59,895,475 (GRCm39)	D471G	probably damaging	Het
Rnh1	A	G	7: 140,743,354 (GRCm39)	V207A	probably benign	Het
Sh3tc2	C	A	18: 62,094,108 (GRCm39)	T49N	probably benign	Het
Skint4	T	C	4: 111,977,060 (GRCm39)	M158T	possibly damaging	Het
Skint7	T	A	4: 111,837,463 (GRCm39)	H80Q	probably benign	Het
Smg1	A	G	7: 117,762,539 (GRCm39)		probably benign	Het
Sostdc1	T	C	12: 36,364,411 (GRCm39)	V40A	probably benign	Het
Stat2	T	C	10: 128,119,622 (GRCm39)	F503L	probably damaging	Het
Syt16	A	T	12: 74,275,987 (GRCm39)		probably null	Het
Tspyl1	T	C	10: 34,158,583 (GRCm39)	S103P	probably benign	Het
Ube4a	A	T	9: 44,837,246 (GRCm39)	S1053R	probably damaging	Het
Vipr1	A	G	9: 121,482,959 (GRCm39)	N58S	probably damaging	Het
Zfp184	C	A	13: 22,143,578 (GRCm39)	A428E	probably damaging	Het
Zfp292	A	C	4: 34,808,593 (GRCm39)	F1484V	possibly damaging	Het
Zfp599	G	A	9: 22,160,840 (GRCm39)	H442Y	probably damaging	Het
Zfp944	G	A	17: 22,558,500 (GRCm39)	T249I	probably benign	Het
Zkscan14	T	A	5: 145,132,316 (GRCm39)	H405L	probably damaging	Het

Other mutations in Sptlc1

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL00811:Sptlc1	APN	13	53,521,414 (GRCm39)	missense	probably damaging	0.98
IGL01354:Sptlc1	APN	13	53,487,987 (GRCm39)	missense	probably benign
IGL01773:Sptlc1	APN	13	53,531,334 (GRCm39)	missense	probably damaging	0.96
IGL01876:Sptlc1	APN	13	53,528,048 (GRCm39)	missense	probably benign	0.02
R0390:Sptlc1	UTSW	13	53,491,648 (GRCm39)	missense	probably benign	0.06
R1371:Sptlc1	UTSW	13	53,505,660 (GRCm39)	missense	probably benign
R1961:Sptlc1	UTSW	13	53,512,916 (GRCm39)	missense	probably benign
R2179:Sptlc1	UTSW	13	53,505,675 (GRCm39)	missense	probably damaging	1.00
R2513:Sptlc1	UTSW	13	53,491,676 (GRCm39)	missense	possibly damaging	0.61
R4357:Sptlc1	UTSW	13	53,528,068 (GRCm39)	missense	probably damaging	1.00
R4989:Sptlc1	UTSW	13	53,505,692 (GRCm39)	missense	probably damaging	0.97
R5055:Sptlc1	UTSW	13	53,496,218 (GRCm39)	missense	probably benign	0.02
R6415:Sptlc1	UTSW	13	53,505,728 (GRCm39)	critical splice acceptor site	probably null
R7283:Sptlc1	UTSW	13	53,498,914 (GRCm39)	missense	probably benign	0.03
R7548:Sptlc1	UTSW	13	53,521,968 (GRCm39)	missense	possibly damaging	0.84
R7731:Sptlc1	UTSW	13	53,487,993 (GRCm39)	missense	probably benign	0.00
R9268:Sptlc1	UTSW	13	53,512,872 (GRCm39)	missense	probably damaging	1.00
R9302:Sptlc1	UTSW	13	53,528,047 (GRCm39)	missense	probably benign	0.06
R9794:Sptlc1	UTSW	13	53,512,803 (GRCm39)	missense	possibly damaging	0.93

Predicted Primers

PCR Primer
(F):5'- AGTCACCTAGGAGGACACTC -3'
(R):5'- TTTGCCTTGAGAACAGTAGGGG -3'

Sequencing Primer
(F):5'- ACACTCAGTCCTATGATGCTTTTCAG -3'
(R):5'- ACAGTAGGGGTGCATAAGCTTTG -3'

Posted On

2018-08-01