5-75583406-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The ENST00000241436.9(POLK):​c.1048C>T​(p.Pro350Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000313 in 1,596,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

POLK
ENST00000241436.9 missense

Scores

8
8
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a domain UmuC (size 255) in uniprot entity POLK_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in ENST00000241436.9
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.889

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
POLKNM_016218.6 linkuse as main transcriptc.1048C>T p.Pro350Ser missense_variant 8/15 ENST00000241436.9
POLKNR_170560.3 linkuse as main transcriptn.1222C>T non_coding_transcript_exon_variant 9/16

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
POLKENST00000241436.9 linkuse as main transcriptc.1048C>T p.Pro350Ser missense_variant 8/151 NM_016218.6 P1Q9UBT6-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152068
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000405
AC:
1
AN:
246796
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
133332
show subpopulations
Gnomad AFR exome
AF:
0.0000621
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000139
AC:
2
AN:
1444028
Hom.:
0
Cov.:
26
AF XY:
0.00
AC XY:
0
AN XY:
718956
show subpopulations
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
AF:
0.0000197
AC:
3
AN:
152068
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74276
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 27, 2023The c.1048C>T (p.P350S) alteration is located in exon 8 (coding exon 7) of the POLK gene. This alteration results from a C to T substitution at nucleotide position 1048, causing the proline (P) at amino acid position 350 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
Benign
0.28
BayesDel_addAF
Uncertain
0.10
D
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.55
D;.;.
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
D;D;D
M_CAP
Benign
0.069
D
MetaRNN
Pathogenic
0.89
D;D;D
MetaSVM
Uncertain
0.18
D
MutationAssessor
Uncertain
2.2
M;M;M
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Uncertain
0.64
T
PROVEAN
Pathogenic
-6.9
D;D;D
REVEL
Pathogenic
0.75
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
D;T;T
Polyphen
1.0
D;D;.
Vest4
0.83
MutPred
0.67
Gain of MoRF binding (P = 0.0395);Gain of MoRF binding (P = 0.0395);Gain of MoRF binding (P = 0.0395);
MVP
0.92
MPC
0.39
ClinPred
1.0
D
GERP RS
5.3
Varity_R
0.84
gMVP
0.74

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.

Other links and lift over

dbSNP: rs528839357; hg19: chr5-74879231; API