Genetic Variant CSN1S1:p.Asp166Tyr (chr4-69944943-G-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001890.2(CSN1S1):c.496G>T(p.Asp166Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,612,532 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

CSN1S1
NM_001890.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.274

Variant links:

Genes affected

CSN1S1 (HGNC:2445): (casein alpha s1) Predicted to be involved in response to dehydroepiandrosterone; response to estradiol; and response to steroid hormone. Located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

CSN1S1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.34001577).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CSN1S1	NM_001890.2 link	c.496G>T	p.Asp166Tyr	missense_variant	Exon 15 of 16	ENST00000246891.9	NP_001881.1	P47710-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CSN1S1	ENST00000246891.9 link	c.496G>T	p.Asp166Tyr	missense_variant	Exon 15 of 16	1	NM_001890.2	ENSP00000246891.4		P47710-1

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151744

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000658

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000402

AC:

AN:

248816

Hom.:

AF XY:

0.0000370

AC XY:

AN XY:

134990

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000443

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.0000445

AC:

AN:

1460788

Hom.:

Cov.:

AF XY:

0.0000468

AC XY:

AN XY:

726712

show subpopulations

Gnomad4 AFR exome

AF:

0.000150

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000928

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000369

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.00000659

AC:

AN:

151744

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74058

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000658

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000113

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000497

AC:

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

Aug 09, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.496G>T (p.D166Y) alteration is located in exon 15 (coding exon 14) of the CSN1S1 gene. This alteration results from a G to T substitution at nucleotide position 496, causing the aspartic acid (D) at amino acid position 166 to be replaced by a tyrosine (Y). 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

0.19

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Uncertain

0.43

T;.;.;T;.

Eigen

Benign

-0.63

Eigen_PC

Benign

-0.91

FATHMM_MKL

Benign

0.021

LIST_S2

Benign

0.57

T;T;T;T;T

M_CAP

Benign

0.031

MetaRNN

Benign

0.34

T;T;T;T;T

MetaSVM

Benign

-0.80

MutationAssessor

Benign

1.7

L;.;.;.;.

PrimateAI

Benign

0.29

PROVEAN

Pathogenic

-5.4

D;D;D;D;D

REVEL

Benign

0.11

Sift

Uncertain

0.0020

D;D;D;D;D

Sift4G

Uncertain

0.012

D;D;D;D;D

Polyphen

1.0

D;.;D;.;.

Vest4

0.48

MutPred

0.57

Loss of disorder (P = 0.0245);.;.;.;.;

MVP

0.43

MPC

0.27

ClinPred

0.95

GERP RS

-3.6

Varity_R

0.11

gMVP

0.20

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over