chr11-121303556-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006918.5(SC5D):​c.181G>A​(p.Ala61Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,010 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SC5D
NM_006918.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.461
Variant links:
Genes affected
SC5D (HGNC:10547): (sterol-C5-desaturase) This gene encodes an enzyme of cholesterol biosynthesis. The encoded protein catalyzes the conversion of lathosterol into 7-dehydrocholesterol. Mutations in this gene have been associated with lathosterolosis. Alternatively spliced transcript variants encoding the same protein have been described. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.058763176).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SC5DNM_006918.5 linkc.181G>A p.Ala61Thr missense_variant 2/5 ENST00000264027.9 NP_008849.2 O75845A0A024R3G4
SC5DNM_001024956.3 linkc.181G>A p.Ala61Thr missense_variant 2/5 NP_001020127.1 O75845A0A024R3G4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SC5DENST00000264027.9 linkc.181G>A p.Ala61Thr missense_variant 2/51 NM_006918.5 ENSP00000264027.4 O75845

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461010
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726858
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

Lathosterolosis Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaApr 27, 2017This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.066
BayesDel_addAF
Benign
-0.081
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
8.1
DANN
Benign
0.86
DEOGEN2
Benign
0.26
T;T;T;T
Eigen
Benign
-1.1
Eigen_PC
Benign
-0.91
FATHMM_MKL
Benign
0.083
N
LIST_S2
Uncertain
0.92
.;D;D;D
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.059
T;T;T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
0.14
N;.;.;N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
0.59
N;N;N;N
REVEL
Benign
0.19
Sift
Benign
0.71
T;T;T;T
Sift4G
Benign
0.58
T;T;T;T
Polyphen
0.0010
B;B;B;B
Vest4
0.051
MutPred
0.30
Loss of ubiquitination at K64 (P = 0.1179);Loss of ubiquitination at K64 (P = 0.1179);Loss of ubiquitination at K64 (P = 0.1179);Loss of ubiquitination at K64 (P = 0.1179);
MVP
0.62
MPC
0.13
ClinPred
0.064
T
GERP RS
-0.45
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.033
gMVP
0.36

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: rs1947941103; hg19: chr11-121174265; API