Genetic Variant PTK7:p.Glu323Lys (chr6-43132426-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002821.5(PTK7):c.967G>A(p.Glu323Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000127 in 1,572,740 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

PTK7
NM_002821.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.99

Variant links:

Genes affected

PTK7 (HGNC:9618): (protein tyrosine kinase 7 (inactive)) This gene encodes a member of the receptor protein tyrosine kinase family of proteins that transduce extracellular signals across the cell membrane. The encoded protein lacks detectable catalytic tyrosine kinase activity, is involved in the Wnt signaling pathway and plays a role in multiple cellular processes including polarity and adhesion. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jul 2012]

PTK7 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTK7	NM_002821.5 link	c.967G>A	p.Glu323Lys	missense_variant	Exon 7 of 20	ENST00000230419.9	NP_002812.2	Q13308-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTK7	ENST00000230419.9 link	c.967G>A	p.Glu323Lys	missense_variant	Exon 7 of 20	1	NM_002821.5	ENSP00000230419.4		Q13308-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

7.04e-7

AC:

AN:

1420522

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

700332

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.21e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 25, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.967G>A (p.E323K) alteration is located in exon 7 (coding exon 7) of the PTK7 gene. This alteration results from a G to A substitution at nucleotide position 967, causing the glutamic acid (E) at amino acid position 323 to be replaced by a lysine (K). 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

Pathogenic

0.17

BayesDel_noAF

Uncertain

0.010

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.18

T;.;.;.;.;.;T

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.97

D;D;D;D;D;D;D

M_CAP

Benign

0.054

MetaRNN

Uncertain

0.47

T;T;T;T;T;T;T

MetaSVM

Benign

-0.42

MutationAssessor

Benign

1.3

L;.;L;L;L;.;.

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-2.0

N;N;N;N;N;N;N

REVEL

Uncertain

0.39

Sift

Benign

0.18

T;T;T;D;T;T;D

Sift4G

Uncertain

0.0080

D;D;D;D;D;D;D

Polyphen

0.82

P;P;P;P;P;.;.

Vest4

0.61

MutPred

0.49

Gain of solvent accessibility (P = 0.0314);Gain of solvent accessibility (P = 0.0314);Gain of solvent accessibility (P = 0.0314);Gain of solvent accessibility (P = 0.0314);Gain of solvent accessibility (P = 0.0314);.;.;

MVP

0.56

MPC

0.49

ClinPred

0.86

GERP RS

5.3

Varity_R

0.18

gMVP

0.74

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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