3-53288160-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1 PM2 BP4

The NM_018403.7(DCP1A):c.1573T>C(p.Ser525Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: DCP1A NM_018403.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.08

Genes affected

DCP1A (HGNC:18714): (decapping mRNA 1A) Decapping is a key step in general and regulated mRNA decay. The protein encoded by this gene is a decapping enzyme. This protein and another decapping enzyme form a decapping complex, which interacts with the nonsense-mediated decay factor hUpf1 and may be recruited to mRNAs containing premature termination codons. This protein also participates in the TGF-beta signaling pathway. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Feb 2014]

LOC107986087 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM1: In a modified_residue Phosphoserine (size 0) in uniprot entity DCP1A_HUMAN
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.33421254).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DCP1A	NM_018403.7	c.1573T>C	p.Ser525Pro	missense_variant	9/10	ENST00000610213.6
LOC107986087	XR_001740702.3	n.208-4739A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DCP1A	ENST00000610213.6	c.1573T>C	p.Ser525Pro	missense_variant	9/10	1	NM_018403.7	P1
DCP1A	ENST00000294241.10	c.1459T>C	p.Ser487Pro	missense_variant	8/9	2
DCP1A	ENST00000558034.1	n.202T>C		non_coding_transcript_exon_variant	1/2	2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 25, 2023

The c.1573T>C (p.S525P) alteration is located in exon 9 (coding exon 9) of the DCP1A gene. This alteration results from a T to C substitution at nucleotide position 1573, causing the serine (S) at amino acid position 525 to be replaced by a proline (P). 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	0.095
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.040
Cadd	Benign	22
Dann	Benign	0.86
DEOGEN2	Benign	0.037	T;.
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.77	T;T
M_CAP	Uncertain	0.098	D
MetaRNN	Benign	0.33	T;T
MutationAssessor	Uncertain	2.4	M;.
PrimateAI	Benign	0.44	T
Sift4G	Uncertain	0.056	T;T
Polyphen		1.0	D;.
Vest4		0.37
MVP		0.67
GERP RS		4.9
Varity_R		0.31
gMVP		0.44

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-53322178;