chr19-50977675-G-C

Variant names:

• chr19-50977675-G-C
• rs148515610
• NM_005046.4:c.623C>G

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_005046.4(KLK7):​c.623C>G​(p.Pro208Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,460,966 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P208L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: KLK7 NM_005046.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.23
• Publications: 0 publications found

Genes affected

KLK7 (HGNC:6368): (kallikrein related peptidase 7) This gene encodes a member of the kallikrein subfamily of serine proteases. These enzymes have diverse physiological functions and many kallikrein genes are biomarkers for cancer. The encoded protein has chymotrypsin-like activity and plays a role in the proteolysis of intercellular cohesive structures that precedes desquamation, the shedding of the outermost layer of the epidermis. The encoded protein may play a role in cancer invasion and metastasis, and increased expression of this gene is associated with unfavorable prognosis and progression of several types of cancer. Polymorphisms in this gene may play a role in the development of atopic dermatitis. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene, which is one of fifteen kallikrein subfamily members located in a gene cluster on chromosome 19. [provided by RefSeq, May 2011]

ENSG00000267879 (HGNC:):

ACMG classification

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, 0.993

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005046.4. 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
	KLK7	NM_005046.4	MANE Select	c.623C>G	p.Pro208Arg	missense	Exon 6 of 6	NP_005037.1	P49862-1
	KLK7	NM_139277.2		c.623C>G	p.Pro208Arg	missense	Exon 6 of 6	NP_644806.1	P49862-1
	KLK7	NM_001243126.1		c.602C>G	p.Pro201Arg	missense	Exon 5 of 5	NP_001230055.1	P49862

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	KLK7	ENST00000595820.6	TSL:1 MANE Select	c.623C>G	p.Pro208Arg	missense	Exon 6 of 6	ENSP00000470538.1	P49862-1
	KLK7	ENST00000597707.5	TSL:1	c.407C>G	p.Pro136Arg	missense	Exon 5 of 5	ENSP00000469950.1	P49862-2
	KLK7	ENST00000391807.5	TSL:5	c.623C>G	p.Pro208Arg	missense	Exon 6 of 6	ENSP00000375683.1	P49862-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1460966 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726776

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44710

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26114

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86226

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53102

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5386

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111914

Other (OTH) AF: 0.00 AC: 0 AN: 60338

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.56	D
BayesDel_noAF	Pathogenic	0.57
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.86	D
Eigen	Pathogenic	0.95
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Pathogenic	0.48	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Pathogenic	4.2	H
PhyloP100		8.2
PrimateAI	Uncertain	0.57	T
PROVEAN	Pathogenic	-8.7	D
REVEL	Pathogenic	0.88
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0030	D
Polyphen		1.0	D
Vest4		0.91
MutPred		0.94		Gain of catalytic residue at P208 (P = 0.0142)
MVP		1.0
MPC		0.25
ClinPred		1.0	D
GERP RS		4.9
Varity_R		0.89
gMVP		0.98
Mutation Taster		=62/38	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs148515610; hg19: chr19-51480931;