19-50401916-C-A

Position:

• chr19-50401916-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_002691.4(POLD1):​c.455C>A​(p.Ala152Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A152V) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: POLD1 NM_002691.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.71

Genes affected

POLD1 (HGNC:9175): (DNA polymerase delta 1, catalytic subunit) This gene encodes the 125-kDa catalytic subunit of DNA polymerase delta. DNA polymerase delta possesses both polymerase and 3' to 5' exonuclease activity and plays a critical role in DNA replication and repair. Alternatively spliced transcript variants have been observed for this gene, and a pseudogene of this gene is located on the long arm of chromosome 6. [provided by RefSeq, Mar 2012]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.762

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
POLD1	NM_002691.4	c.455C>A	p.Ala152Glu	missense_variant	4/27	ENST00000440232.7	NP_002682.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
POLD1	ENST00000440232.7	c.455C>A	p.Ala152Glu	missense_variant	4/27	1	NM_002691.4	ENSP00000406046	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.88
BayesDel_addAF	Uncertain	0.046	T
BayesDel_noAF	Benign	-0.17
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.42	T;.;.;.;T
Eigen	Uncertain	0.40
Eigen_PC	Uncertain	0.26
FATHMM_MKL	Uncertain	0.79	D
LIST_S2	Uncertain	0.89	.;.;D;D;D
M_CAP	Uncertain	0.10	D
MetaRNN	Pathogenic	0.76	D;D;D;D;D
MetaSVM	Benign	-0.79	T
MutationAssessor	Pathogenic	3.2	M;.;.;.;M
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-3.9	D;.;.;.;.
REVEL	Uncertain	0.31
Sift	Uncertain	0.0070	D;.;.;.;.
Sift4G	Uncertain	0.039	D;D;D;D;D
Polyphen		0.86	P;.;.;.;P
Vest4		0.62
MutPred		0.74		Gain of disorder (P = 0.0294);Gain of disorder (P = 0.0294);Gain of disorder (P = 0.0294);Gain of disorder (P = 0.0294);Gain of disorder (P = 0.0294);
MVP		0.73
MPC		0.81
ClinPred		0.97	D
GERP RS		4.0
Varity_R		0.85
gMVP		0.80

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: chr19-50905173;