rs1304454699

chr5-75590429-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM2 PP5_Moderate BP4

The ENST00000241436.9(POLK):c.1345G>A(p.Glu449Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000138 in 1,448,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: POLK ENST00000241436.9 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 4.79

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 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 5-75590429-G-A is Pathogenic according to our data. Variant chr5-75590429-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 218221.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP4: Computational evidence support a benign effect (MetaRNN=0.21225116).. Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
POLK	NM_016218.6	c.1345G>A	p.Glu449Lys	missense_variant	11/15	ENST00000241436.9
POLK	NR_170560.3	n.1519G>A		non_coding_transcript_exon_variant	12/16

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
POLK	ENST00000241436.9	c.1345G>A	p.Glu449Lys	missense_variant	11/15	1	NM_016218.6	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 250966 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135650

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: 0.00000881

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1448006 Hom.: 0 Cov.: 26 AF XY: 0.00 AC XY: 0 AN XY: 721302

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: 0.00000182

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Malignant tumor of prostate Pathogenic:1

Pathogenic, criteria provided, single submitter

research

Tulane Cancer Center, Tulane University

Aug 14, 2013

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.40
Cadd	Benign	20
Dann	Uncertain	0.99
DEOGEN2	Benign	0.18	T;.;.
Eigen	Benign	-0.37
Eigen_PC	Benign	-0.27
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.91	D;D;D
M_CAP	Benign	0.043	D
MetaRNN	Benign	0.21	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.3	L;L;L
MutationTaster	Benign	1.0	D;D;D;D;D;D
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-2.2	N;N;N
REVEL	Benign	0.077
Sift	Benign	0.056	T;T;D
Sift4G	Uncertain	0.036	D;T;T
Polyphen		0.15	B;B;.
Vest4		0.24
MutPred		0.48		Gain of MoRF binding (P = 0.0127);Gain of MoRF binding (P = 0.0127);Gain of MoRF binding (P = 0.0127);
MVP		0.39
MPC		0.080
ClinPred		0.61	D
GERP RS		2.7
Varity_R		0.29
gMVP		0.70

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs1304454699; hg19: chr5-74886254;