Genetic Variant CDH15:p.Leu617Val (chr16-89192438-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_004933.3(CDH15):c.1849C>G(p.Leu617Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000321 in 1,559,536 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L617L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

CDH15
NM_004933.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.11

Publications

0 publications found

Variant links:

Genes affected

CDH15 (HGNC:1754): (cadherin 15) This gene is a member of the cadherin superfamily of genes, encoding calcium-dependent intercellular adhesion glycoproteins. Cadherins consist of an extracellular domain containing 5 cadherin domains, a transmembrane region, and a conserved cytoplasmic domain. Transcripts from this particular cadherin are expressed in myoblasts and upregulated in myotubule-forming cells. The protein is thought to be essential for the control of morphogenetic processes, specifically myogenesis, and may provide a trigger for terminal muscle cell differentiation. [provided by RefSeq, Jul 2008]

CDH15 Gene-Disease associations (from GenCC):

autosomal dominant non-syndromic intellectual disability
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
intellectual disability, autosomal dominant 3
Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
intellectual disability
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

CDH15 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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
CDH15	NM_004933.3 link	c.1849C>G	p.Leu617Val	missense_variant	Exon 11 of 14	ENST00000289746.3	NP_004924.1	P55291

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDH15	ENST00000289746.3 link	c.1849C>G	p.Leu617Val	missense_variant	Exon 11 of 14	1	NM_004933.3	ENSP00000289746.2		P55291

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152034

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

GnomAD2 exomes

AF:

0.00000611

AC:

AN:

163796

AF XY:

0.0000110

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000147

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000284

AC:

AN:

1407502

Hom.:

Cov.:

AF XY:

0.00000287

AC XY:

AN XY:

697332

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32470

American (AMR)

AF:

0.00

AC:

AN:

39626

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25416

East Asian (EAS)

AF:

0.00

AC:

AN:

37234

South Asian (SAS)

AF:

0.00

AC:

AN:

81354

European-Finnish (FIN)

AF:

0.00

AC:

AN:

35200

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5306

European-Non Finnish (NFE)

AF:

0.00000366

AC:

AN:

1092218

Other (OTH)

AF:

0.00

AC:

AN:

58678

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152034

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74262

show subpopulations

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

African (AFR)

AF:

0.00

AC:

AN:

41364

American (AMR)

AF:

0.00

AC:

AN:

15258

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67972

Other (OTH)

AF:

0.00

AC:

AN:

2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), 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

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000151

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.014

BayesDel_noAF

Benign

-0.26

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.29

Eigen

Uncertain

0.35

Eigen_PC

Benign

0.16

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.61

M_CAP

Pathogenic

0.63

MetaRNN

Uncertain

0.63

MetaSVM

Uncertain

0.18

MutationAssessor

Pathogenic

3.1

PhyloP100

1.1

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-2.0

REVEL

Uncertain

0.35

Sift

Benign

0.32

Sift4G

Uncertain

0.0050

Polyphen

1.0

Vest4

0.46

MutPred

0.45

Gain of catalytic residue at L617 (P = 0.0943);

MVP

0.81

MPC

0.18

ClinPred

0.77

GERP RS

3.5

Varity_R

0.094

gMVP

0.71

Mutation Taster

=79/21

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over