Variant 19-50821847-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_002257.4(KLK1):c.71G>A(p.Arg24Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000164 in 1,612,344 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

KLK1
NM_002257.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.53

Variant links:

Genes affected

KLK1 (HGNC:6357): (kallikrein 1) Kallikreins are a subgroup of serine proteases having diverse physiological functions. Growing evidence suggests that many kallikreins are implicated in carcinogenesis and some have potential as novel cancer and other disease biomarkers. This gene is one of the fifteen kallikrein subfamily members located in a cluster on chromosome 19. This protein is functionally conserved in its capacity to release the vasoactive peptide, Lys-bradykinin, from low molecular weight kininogen. [provided by RefSeq, Jul 2008]

KLK1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.37482733).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KLK1	NM_002257.4 linkuse as main transcript	c.71G>A	p.Arg24Gln	missense_variant	2/5	ENST00000301420.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KLK1	ENST00000301420.3 linkuse as main transcript	c.71G>A	p.Arg24Gln	missense_variant	2/5	1	NM_002257.4	P1	P06870-1
KLK1	ENST00000593859.5 linkuse as main transcript	n.110G>A		non_coding_transcript_exon_variant	2/4	2
KLK1	ENST00000593325.5 linkuse as main transcript	c.*880G>A		3_prime_UTR_variant, NMD_transcript_variant	3/6	2

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000640

AC:

AN:

249878

Hom.:

AF XY:

0.0000888

AC XY:

AN XY:

135132

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.0000656

Gnomad FIN exome

AF:

0.0000464

Gnomad NFE exome

AF:

0.0000886

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000171

AC:

250

AN:

1460046

Hom.:

Cov.:

AF XY:

0.000158

AC XY:

115

AN XY:

726210

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.0000465

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000209

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152298

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74462

show subpopulations

Gnomad4 AFR

AF:

0.0000722

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000124

Hom.:

Bravo

AF:

0.0000718

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000519

AC:

ExAC

AF:

0.00000824

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000237

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 submitter

clinical testing

Ambry Genetics

Sep 16, 2021

The c.71G>A (p.R24Q) alteration is located in exon 2 (coding exon 2) of the KLK1 gene. This alteration results from a G to A substitution at nucleotide position 71, causing the arginine (R) at amino acid position 24 to be replaced by a glutamine (Q). 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

Uncertain

0.53

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.20

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.48

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.38

FATHMM_MKL

Benign

0.37

LIST_S2

Uncertain

0.86

M_CAP

Pathogenic

0.31

MetaRNN

Benign

0.37

MetaSVM

Uncertain

0.23

MutationAssessor

Uncertain

2.2

MutationTaster

Benign

1.0

D;N

PrimateAI

Benign

0.38

PROVEAN

Uncertain

-2.8

REVEL

Uncertain

0.41

Sift

Uncertain

0.029

Sift4G

Uncertain

0.020

Polyphen

0.99

Vest4

0.32

MVP

0.78

MPC

0.57

ClinPred

0.20

GERP RS

2.6

Varity_R

0.19

gMVP

0.63

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over