chr5-75573790-G-C

Variant names:

• chr5-75573790-G-C
• rs749804502
• ENST00000241436.9:c.461G>C

Variant summary

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

The NM_001387111.3(POLK):​c.461G>C​(p.Gly154Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,460,738 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: POLK NM_001387111.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.96

Genes affected

POLK (HGNC:9183): (DNA polymerase kappa) This gene encodes a member of the DNA polymerase type-Y family of proteins. The encoded protein is a specialized DNA polymerase that catalyzes translesion DNA synthesis, which allows DNA replication in the presence of DNA lesions. Human cell lines lacking a functional copy of this gene exhibit impaired genome integrity and enhanced susceptibility to oxidative damage. Mutations in this gene that impair enzyme activity may be associated with prostate cancer in human patients. [provided by RefSeq, Sep 2016]

ACMG classification

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
POLK	NM_001387111.3	c.461G>C	p.Gly154Ala	missense_variant	Exon 5 of 16		NP_001374040.1
POLK	NM_001395894.1	c.461G>C	p.Gly154Ala	missense_variant	Exon 6 of 17		NP_001382823.1
POLK	NM_001395897.1	c.500G>C	p.Gly167Ala	missense_variant	Exon 6 of 16		NP_001382826.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
POLK	ENST00000241436.9	c.461G>C	p.Gly154Ala	missense_variant	Exon 5 of 15	1		ENSP00000241436.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1460738 Hom.: 0 Cov.: 29 AF XY: 0.00000275 AC XY: 2 AN XY: 726734

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000756

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.62
BayesDel_addAF	Pathogenic	0.34	D
BayesDel_noAF	Pathogenic	0.26
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.58	D;.;.;.
Eigen	Pathogenic	0.85
Eigen_PC	Pathogenic	0.89
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	D;D;D;D
M_CAP	Benign	0.080	D
MetaRNN	Uncertain	0.60	D;D;D;D
MetaSVM	Uncertain	-0.050	T
MutationAssessor	Benign	0.94	L;L;L;L
PrimateAI	Uncertain	0.76	T
PROVEAN	Pathogenic	-5.6	D;D;D;D
REVEL	Uncertain	0.57
Sift	Pathogenic	0.0	D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;D
Polyphen		1.0	D;D;.;D
Vest4		0.59
MutPred		0.64		Loss of methylation at K158 (P = 0.1051);Loss of methylation at K158 (P = 0.1051);Loss of methylation at K158 (P = 0.1051);Loss of methylation at K158 (P = 0.1051);
MVP		0.91
MPC		0.33
ClinPred		0.97	D
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.97
gMVP		0.79

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

Other links and lift over

dbSNP: rs749804502; hg19: chr5-74869615;