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GeneBe

14-100149224-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_206918.3(DEGS2):c.569C>T(p.Thr190Met) variant causes a missense change. The variant allele was found at a frequency of 0.000036 in 1,612,684 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 35)
Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

DEGS2
NM_206918.3 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.18
Variant links:
Genes affected
DEGS2 (HGNC:20113): (delta 4-desaturase, sphingolipid 2) This gene encodes a bifunctional enzyme that is involved in the biosynthesis of phytosphingolipids in human skin and in other phytosphingolipid-containing tissues. This enzyme can act as a sphingolipid delta(4)-desaturase, and also as a sphingolipid C4-hydroxylase. [provided by RefSeq, Oct 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.22473904).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DEGS2NM_206918.3 linkuse as main transcriptc.569C>T p.Thr190Met missense_variant 2/3 ENST00000305631.7
DEGS2XM_006720043.4 linkuse as main transcriptc.461C>T p.Thr154Met missense_variant 3/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DEGS2ENST00000305631.7 linkuse as main transcriptc.569C>T p.Thr190Met missense_variant 2/31 NM_206918.3 P1
DEGS2ENST00000553834.1 linkuse as main transcriptc.83-2317C>T intron_variant 3
DEGS2ENST00000557117.1 linkuse as main transcriptn.601C>T non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.0000919
AC:
14
AN:
152264
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.000313
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000322
AC:
8
AN:
248782
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135074
show subpopulations
Gnomad AFR exome
AF:
0.000187
Gnomad AMR exome
AF:
0.0000870
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000895
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000301
AC:
44
AN:
1460302
Hom.:
0
Cov.:
31
AF XY:
0.0000358
AC XY:
26
AN XY:
726436
show subpopulations
Gnomad4 AFR exome
AF:
0.000717
Gnomad4 AMR exome
AF:
0.0000895
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000720
Gnomad4 OTH exome
AF:
0.0000994
GnomAD4 genome
AF:
0.0000919
AC:
14
AN:
152382
Hom.:
0
Cov.:
35
AF XY:
0.0000805
AC XY:
6
AN XY:
74518
show subpopulations
Gnomad4 AFR
AF:
0.000313
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000251
Hom.:
0
Bravo
AF:
0.000106
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000495
AC:
6
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 09, 2021The c.569C>T (p.T190M) alteration is located in exon 2 (coding exon 2) of the DEGS2 gene. This alteration results from a C to T substitution at nucleotide position 569, causing the threonine (T) at amino acid position 190 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.096
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.51
Cadd
Benign
18
Dann
Uncertain
0.99
DEOGEN2
Benign
0.16
T
Eigen
Benign
-0.066
Eigen_PC
Benign
-0.13
FATHMM_MKL
Benign
0.74
D
LIST_S2
Benign
0.80
T
M_CAP
Benign
0.0083
T
MetaRNN
Benign
0.22
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Uncertain
2.0
M
MutationTaster
Benign
0.65
D;N
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.046
Sift
Benign
0.18
T
Sift4G
Benign
0.16
T
Polyphen
0.70
P
Vest4
0.38
MVP
0.47
MPC
1.0
ClinPred
0.075
T
GERP RS
3.5
Varity_R
0.039
gMVP
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs199587189; hg19: chr14-100615561; COSMIC: COSV99979390; COSMIC: COSV99979390; API