Genetic Variant DCST1:p.Ser392Phe (chr1-155045895-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_152494.4(DCST1):c.1175C>T(p.Ser392Phe) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,502 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DCST1
NM_152494.4 missense, splice_region

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.47

Variant links:

Genes affected

DCST1 (HGNC:26539): (DC-STAMP domain containing 1) This gene encodes a protein with a domain similar to one found in dendritic cells (PMID:11169400) which play a key role in antigen processing and display for immune responses. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

DCST1 links:

DCST1-AS1 (HGNC:41147): (DCST1 antisense RNA 1)

DCST1-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DCST1	NM_152494.4 link	c.1175C>T	p.Ser392Phe	missense_variant, splice_region_variant	Exon 11 of 17	ENST00000295542.6	NP_689707.2	Q5T197-1B4DXB8B4DXE3
DCST1	NM_001143687.2 link	c.1100C>T	p.Ser367Phe	missense_variant, splice_region_variant	Exon 10 of 16		NP_001137159.1	Q5T197-3B4DXB8B4DXE3
DCST1-AS1	NR_040772.1 link	n.940-42G>A		intron_variant	Intron 3 of 3
DCST1-AS1	NR_040773.1 link	n.525-42G>A		intron_variant	Intron 3 of 3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DCST1	ENST00000295542.6 link	c.1175C>T	p.Ser392Phe	missense_variant, splice_region_variant	Exon 11 of 17	2	NM_152494.4	ENSP00000295542.2		Q5T197-1
DCST1	ENST00000525273.5 link	n.1250C>T		splice_region_variant, non_coding_transcript_exon_variant	Exon 11 of 15	2		ENSP00000433667.1		E9PJX3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.00000796

AC:

AN:

251360

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135852

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461266

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726980

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

AF:

0.00000657

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74380

show subpopulations

Gnomad4 AFR

AF:

0.00

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

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

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

Mar 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1175C>T (p.S392F) alteration is located in exon 11 (coding exon 10) of the DCST1 gene. This alteration results from a C to T substitution at nucleotide position 1175, causing the serine (S) at amino acid position 392 to be replaced by a phenylalanine (F). 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

Pathogenic

0.67

BayesDel_addAF

Benign

-0.021

BayesDel_noAF

Benign

-0.25

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.42

T;.;.

Eigen

Uncertain

0.21

Eigen_PC

Benign

0.17

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.82

T;T;T

M_CAP

Benign

0.014

MetaRNN

Uncertain

0.72

D;D;D

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.4

M;.;M

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-4.0

D;D;D

REVEL

Benign

0.15

Sift

Uncertain

0.0020

D;D;D

Sift4G

Uncertain

0.012

D;D;D

Polyphen

0.90

P;.;.

Vest4

0.65

MutPred

0.56

Loss of disorder (P = 0.0366);.;Loss of disorder (P = 0.0366);

MVP

0.49

MPC

0.37

ClinPred

0.92

GERP RS

2.8

Varity_R

0.38

gMVP

0.62

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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