Genetic Variant KLK9:p.Arg89Gln (chr19-51006658-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_012315.2(KLK9):c.266G>A(p.Arg89Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,612,434 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

KLK9
NM_012315.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.631

Variant links:

Genes affected

KLK9 (HGNC:6370): (kallikrein related peptidase 9) The protein encoded by this gene is a kallikrein-related serine protease. This gene is activated by steroid hormones in a human breast cancer cell line, making it a good marker for cancer detection. The encoded protein is found primarily in the cytoplasm.[provided by RefSeq, Oct 2010]

KLK9 links:

ENSG00000269741 (HGNC:):

ENSG00000269741 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.18465137).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KLK9	NM_012315.2 link	c.266G>A	p.Arg89Gln	missense_variant	Exon 3 of 5	ENST00000594211.2	NP_036447.1	Q9UKQ9-1Q2XQG6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
KLK9	ENST00000594211.2 link	c.266G>A	p.Arg89Gln	missense_variant	Exon 3 of 5	1	NM_012315.2	ENSP00000469417.1	Q9UKQ9-1
ENSG00000269741	ENST00000250366.6 link	n.266G>A		non_coding_transcript_exon_variant	Exon 3 of 7	2		ENSP00000250366.5
KLK9	ENST00000544410.1 link	n.109G>A		non_coding_transcript_exon_variant	Exon 2 of 4	2		ENSP00000443289.1	Q9UKQ9-2
ENSG00000267879	ENST00000594512.1 link	n.430-5365C>T		intron_variant	Intron 3 of 3	4

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151876

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000948

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000799

AC:

AN:

250330

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135260

show subpopulations

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:

0.0000927

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000753

AC:

AN:

1460558

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

726540

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

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:

0.0000187

Gnomad4 NFE exome

AF:

0.00000720

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151876

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74178

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000948

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 09, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.266G>A (p.R89Q) alteration is located in exon 3 (coding exon 3) of the KLK9 gene. This alteration results from a G to A substitution at nucleotide position 266, causing the arginine (R) at amino acid position 89 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

Benign

0.13

BayesDel_addAF

Benign

-0.021

BayesDel_noAF

Benign

-0.27

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.23

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.69

FATHMM_MKL

Benign

0.013

M_CAP

Benign

0.037

MetaRNN

Benign

0.18

MetaSVM

Benign

-0.62

MutationAssessor

Benign

0.46

PrimateAI

Benign

0.34

Sift4G

Benign

0.61

Polyphen

0.90

Vest4

0.28

MutPred

0.31

Loss of sheet (P = 0.1398);

MVP

0.77

ClinPred

0.38

GERP RS

1.7

Varity_R

0.039

gMVP

0.49

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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