Genetic Variant NM_001648.2:c.196T>C (chr19-50856389-T-C) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001648.2(KLK3):c.196T>C(p.Cys66Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000411 in 1,461,432 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: not found (cov: 31)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

KLK3
NM_001648.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.93

Publications

0 publications found

Variant links:

Genes affected

KLK3 (HGNC:6364): (kallikrein related peptidase 3) 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. The gene is one of the fifteen kallikrein subfamily members located in a cluster on chromosome 19. It encodes a single-chain glycoprotein, a protease which is synthesized in the epithelial cells of the prostate gland, and is present in seminal plasma. It is thought to function normally in the liquefaction of seminal coagulum, presumably by hydrolysis of the high molecular mass seminal vesicle protein. The serum level of this protein, called PSA in the clinical setting, is useful in the diagnosis and monitoring of prostatic carcinoma. Alternate splicing of this gene generates several transcript variants encoding different isoforms. [provided by RefSeq, Dec 2019]

KLK3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.988

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001648.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KLK3	NM_001648.2	MANE Select	c.196T>C	p.Cys66Arg	missense	Exon 2 of 5	NP_001639.1	Q546G3
KLK3	NM_001030047.1		c.196T>C	p.Cys66Arg	missense	Exon 2 of 5	NP_001025218.1	P07288-2
KLK3	NM_001030048.1		c.196T>C	p.Cys66Arg	missense	Exon 2 of 5	NP_001025219.1	P07288-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
KLK3	ENST00000326003.7	TSL:1 MANE Select	c.196T>C	p.Cys66Arg	missense	Exon 2 of 5	ENSP00000314151.1	P07288-1
KLK3	ENST00000360617.7	TSL:1	c.196T>C	p.Cys66Arg	missense	Exon 2 of 5	ENSP00000353829.2	P07288-2
KLK3	ENST00000593997.5	TSL:1	c.196T>C	p.Cys66Arg	missense	Exon 2 of 4	ENSP00000472907.1	P07288-5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250396

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000885

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1461432

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727034

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33456

American (AMR)

AF:

0.00

AC:

AN:

44692

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26104

East Asian (EAS)

AF:

0.00

AC:

AN:

39682

South Asian (SAS)

AF:

0.00

AC:

AN:

86228

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53376

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5646

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1111870

Other (OTH)

AF:

0.00

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.542

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.44

BayesDel_noAF

Pathogenic

0.40

CADD

Pathogenic

(source)

DANN

Uncertain

0.98

DEOGEN2

Pathogenic

0.80

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.88

M_CAP

Pathogenic

0.37

MetaRNN

Pathogenic

0.99

MetaSVM

Pathogenic

0.98

MutationAssessor

Pathogenic

3.6

PhyloP100

3.9

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-10

REVEL

Pathogenic

0.72

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.80

MVP

0.97

MPC

0.58

ClinPred

1.0

GERP RS

2.9

Varity_R

0.92

gMVP

0.80

Mutation Taster

=49/51

disease causing

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over