Genetic Variant CDHR3:p.Gly29Asp (chr7-105974883-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_152750.5(CDHR3):c.86G>A(p.Gly29Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,434 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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: 0.0000021 ( 0 hom. )

Consequence

CDHR3
NM_152750.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.98

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: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12342256).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDHR3	NM_152750.5 link	c.86G>A	p.Gly29Asp	missense_variant	Exon 2 of 19	ENST00000317716.14	NP_689963.2	Q6ZTQ4-1
CDHR3	NM_001301161.2 link	c.-15-6085G>A		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.86G>A	p.Gly29Asp	missense_variant	Exon 2 of 19	1	NM_152750.5	ENSP00000325954.9		Q6ZTQ4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461434

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727010

show subpopulations

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

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.0000224

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5718

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111692

Other (OTH)

AF:

0.0000166

AC:

AN:

60352

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.001100), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 09, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.86G>A (p.G29D) alteration is located in exon 2 (coding exon 2) of the CDHR3 gene. This alteration results from a G to A substitution at nucleotide position 86, causing the glycine (G) at amino acid position 29 to be replaced by an aspartic acid (D). 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

0.18

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.55

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.026

Eigen

Benign

-0.52

Eigen_PC

Benign

-0.47

FATHMM_MKL

Benign

0.099

LIST_S2

Benign

0.69

M_CAP

Benign

0.0039

MetaRNN

Benign

0.12

MetaSVM

Benign

-1.1

PhyloP100

2.0

PrimateAI

Benign

0.30

PROVEAN

Benign

-0.73

REVEL

Benign

0.050

Sift

Benign

0.084

Sift4G

Benign

0.099

Polyphen

0.50

Vest4

0.41

MutPred

0.48

Loss of sheet (P = 0.1158);

MVP

0.15

MPC

0.048

ClinPred

0.37

GERP RS

3.6

Varity_R

0.24

gMVP

0.71

Mutation Taster

=91/9

polymorphism

(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

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7-105974883-G-A

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