rs3745522

Variant names:

• chr19-50827676-G-C
• rs3745522
• NM_017509.4:c.183C>G

Your query was ambiguous. Multiple possible variants found:

• chr19-50827676-G-C
• chr19-50827676-G-T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_017509.4(KLK15):​c.183C>G​(p.Ala61Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,458,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: KLK15 NM_017509.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0960
• Publications: 0 publications found

Genes affected

KLK15 (HGNC:20453): (kallikrein related peptidase 15) 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. In prostate cancer, this gene has increased expression, which indicates its possible use as a diagnostic or prognostic marker for prostate cancer. The gene contains multiple polyadenylation sites and alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.49).
• BP7: Synonymous conserved (PhyloP=-0.096 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017509.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KLK15	NM_017509.4	MANE Select	c.183C>G	p.Ala61Ala	synonymous	Exon 3 of 6	NP_059979.2
	KLK15	NM_001277081.2		c.180C>G	p.Ala60Ala	synonymous	Exon 3 of 6	NP_001264010.1	Q9H2R5-5
	KLK15	NM_001277082.2		c.180C>G	p.Ala60Ala	synonymous	Exon 3 of 5	NP_001264011.1	M0R0D7

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KLK15	ENST00000598239.6	TSL:1 MANE Select	c.183C>G	p.Ala61Ala	synonymous	Exon 3 of 6	ENSP00000469315.1	Q9H2R5-1
	KLK15	ENST00000596931.5	TSL:1	c.180C>G	p.Ala60Ala	synonymous	Exon 2 of 4	ENSP00000471164.1	M0R0D7
	KLK15	ENST00000601680.1	TSL:1	n.183C>G		non_coding_transcript_exon	Exon 2 of 4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1458826 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 725768

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33462

American (AMR) AF: 0.00 AC: 0 AN: 44558

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26094

East Asian (EAS) AF: 0.00 AC: 0 AN: 39686

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86152

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53354

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5736

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1109516

Other (OTH) AF: 0.00 AC: 0 AN: 60268

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.49
CADD	Benign	6.2
DANN	Benign	0.73
PhyloP100		-0.096

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

Other links and lift over

dbSNP: rs3745522; hg19: chr19-51330932;