Genetic Variant DCPS:p.Arg13Ser (chr11-126304117-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_014026.6(DCPS):c.37C>A(p.Arg13Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000212 in 1,461,020 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

DCPS
NM_014026.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.56

Variant links:

Genes affected

DCPS (HGNC:29812): (decapping enzyme, scavenger) This gene encodes a member of the histidine triad family of pyrophosphatases that removes short mRNA fragments containing the 5′ mRNA cap structure, which appear in the 3′ → 5′ mRNA decay pathway, following deadenylation and exosome-mediated turnover. This enzyme hydrolyzes the triphosphate linkage of the cap structure (7-methylguanosine nucleoside triphosphate) to yield 7-methylguanosine monophosphate and nucleoside diphosphate. It protects the cell from the potentially toxic accumulation of these short, capped mRNA fragments, and regulates the activity of other cap-binding proteins, which are inhibited by their accumulation. It also acts as a transcript-specific modulator of pre-mRNA splicing and microRNA turnover. [provided by RefSeq, Apr 2017]

DCPS links:

TIRAP-AS1 (HGNC:56069): (TIRAP antisense RNA 1)

TIRAP-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
DCPS	NM_014026.6 link	c.37C>A	p.Arg13Ser	missense_variant	Exon 1 of 6	ENST00000263579.5	NP_054745.1	Q96C86A0A384MTI8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DCPS	ENST00000263579.5 link	c.37C>A	p.Arg13Ser	missense_variant	Exon 1 of 6	1	NM_014026.6	ENSP00000263579.4	Q96C86
TIRAP-AS1	ENST00000693424.1 link	n.183G>T		non_coding_transcript_exon_variant	Exon 1 of 1
TIRAP-AS1	ENST00000524964.2 link	n.116+91G>T		intron_variant	Intron 1 of 1	2
TIRAP-AS1	ENST00000691542.1 link	n.114+91G>T		intron_variant	Intron 1 of 1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000442

AC:

AN:

248716

Hom.:

AF XY:

0.0000445

AC XY:

AN XY:

134754

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

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:

0.0000802

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000212

AC:

AN:

1461020

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

726756

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000449

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:

0.0000243

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000577

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jan 02, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.37C>A (p.R13S) alteration is located in exon 1 (coding exon 1) of the DCPS gene. This alteration results from a C to A substitution at nucleotide position 37, causing the arginine (R) at amino acid position 13 to be replaced by a serine (S). 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

0.61

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.10

Eigen

Uncertain

0.31

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.76

M_CAP

Benign

0.015

MetaRNN

Uncertain

0.59

MetaSVM

Benign

-0.76

MutationAssessor

Uncertain

2.0

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-0.97

REVEL

Benign

0.19

Sift

Benign

0.15

Sift4G

Benign

0.29

Polyphen

0.99

Vest4

0.58

MutPred

0.20

Gain of phosphorylation at R13 (P = 0.0093);

MVP

0.71

MPC

0.38

ClinPred

0.88

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.22

gMVP

0.47

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.

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