Genetic Variant CDHR3:p.Lys43Gln (chr7-105974924-A-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_152750.5(CDHR3):c.127A>C(p.Lys43Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,612 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

CDHR3
NM_152750.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.376

Publications

0 publications found

Variant links:

Genes affected

CDHR3 (HGNC:26308): (cadherin related family member 3) Predicted to enable cadherin binding activity and calcium ion binding activity. Predicted to be involved in calcium-dependent cell-cell adhesion via plasma membrane cell adhesion molecules; cell morphogenesis; and cell-cell junction organization. Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

CDHR3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.065882236).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDHR3	NM_152750.5 link	c.127A>C	p.Lys43Gln	missense_variant	Exon 2 of 19	ENST00000317716.14	NP_689963.2	Q6ZTQ4-1
CDHR3	NM_001301161.2 link	c.-15-6044A>C		intron_variant	Intron 1 of 17		NP_001288090.1	Q6ZTQ4E7EQG5B7Z8X2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDHR3	ENST00000317716.14 link	c.127A>C	p.Lys43Gln	missense_variant	Exon 2 of 19	1	NM_152750.5	ENSP00000325954.9		Q6ZTQ4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000802

AC:

AN:

249242

AF XY:

0.00000740

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461612

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727110

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.0000894

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111788

Other (OTH)

AF:

0.0000166

AC:

AN:

60368

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 26, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.127A>C (p.K43Q) alteration is located in exon 2 (coding exon 2) of the CDHR3 gene. This alteration results from a A to C substitution at nucleotide position 127, causing the lysine (K) at amino acid position 43 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

0.087

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.63

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.00043

Eigen

Benign

-0.50

Eigen_PC

Benign

-0.48

FATHMM_MKL

Benign

0.084

LIST_S2

Benign

0.64

M_CAP

Benign

0.0031

MetaRNN

Benign

0.066

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

PhyloP100

0.38

PrimateAI

Benign

0.26

PROVEAN

Benign

-0.59

REVEL

Benign

0.040

Sift

Benign

0.35

Sift4G

Benign

0.25

Polyphen

0.47

Vest4

0.20

MutPred

0.43

Loss of ubiquitination at K43 (P = 0.0233);

MVP

0.088

MPC

0.036

ClinPred

0.051

GERP RS

1.8

Varity_R

0.11

gMVP

0.41

Mutation Taster

=87/13

polymorphism

(source)

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

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chr7-105974924-A-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over