Genetic Variant CDH7:p.Ser93Cys (chr18-65809771-C-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_004361.5(CDH7):c.278C>G(p.Ser93Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000753 in 1,461,744 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

CDH7
NM_004361.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.59

Publications

0 publications found

Variant links:

Genes affected

CDH7 (HGNC:1766): (cadherin 7) This gene encodes a type II classical cadherin of the cadherin superfamily. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate the mature glycoprotein. This calcium dependent cell-cell adhesion molecule is comprised of five extracellular cadherin repeats, a transmembrane region and a highly conserved cytoplasmic tail. Type II (atypical) cadherins are defined based on their lack of a histidine-alanine-valine (HAV) cell adhesion recognition sequence specific to type I cadherins. Cadherins mediate cell-cell binding in a homophilic manner, contributing to the sorting of heterogeneous cell types. Mutations in this gene may be associated with bipolar disease in human patients. This gene is present in a gene cluster on chromosome 18. [provided by RefSeq, May 2016]

CDH7 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2

High AC in GnomAdExome4 at 11 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDH7	NM_004361.5 link	c.278C>G	p.Ser93Cys	missense_variant	Exon 3 of 12	ENST00000397968.4	NP_004352.2	Q9ULB5
CDH7	NM_001362438.2 link	c.278C>G	p.Ser93Cys	missense_variant	Exon 3 of 12		NP_001349367.1
CDH7	NM_033646.4 link	c.278C>G	p.Ser93Cys	missense_variant	Exon 3 of 12		NP_387450.1	Q9ULB5
CDH7	NM_001317214.3 link	c.278C>G	p.Ser93Cys	missense_variant	Exon 3 of 11		NP_001304143.1	Q9ULB5F5H5X9Q8IY78

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CDH7	ENST00000397968.4 link	c.278C>G	p.Ser93Cys	missense_variant	Exon 3 of 12	1	NM_004361.5	ENSP00000381058.2	Q9ULB5
CDH7	ENST00000323011.7 link	c.278C>G	p.Ser93Cys	missense_variant	Exon 3 of 12	1		ENSP00000319166.3	Q9ULB5
CDH7	ENST00000536984.6 link	c.278C>G	p.Ser93Cys	missense_variant	Exon 3 of 11	1		ENSP00000443030.2	F5H5X9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000753

AC:

AN:

1461744

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727164

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33466

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00000899

AC:

AN:

1111902

Other (OTH)

AF:

0.0000166

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 06, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.278C>G (p.S93C) alteration is located in exon 3 (coding exon 2) of the CDH7 gene. This alteration results from a C to G substitution at nucleotide position 278, causing the serine (S) at amino acid position 93 to be replaced by a cysteine (C). 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

Uncertain

0.49

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Uncertain

0.12

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.22

T;T;T

Eigen

Pathogenic

0.88

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.93

.;D;D

M_CAP

Benign

0.044

MetaRNN

Uncertain

0.74

D;D;D

MetaSVM

Uncertain

0.18

MutationAssessor

Pathogenic

3.0

M;.;M

PhyloP100

4.6

PrimateAI

Pathogenic

0.82

PROVEAN

Uncertain

-2.8

D;D;D

REVEL

Uncertain

0.46

Sift

Uncertain

0.0020

D;D;D

Sift4G

Uncertain

0.0030

D;D;D

Polyphen

1.0

D;D;D

Vest4

0.78

MutPred

0.59

Loss of disorder (P = 0.046);Loss of disorder (P = 0.046);Loss of disorder (P = 0.046);

MVP

0.66

MPC

1.1

ClinPred

0.97

GERP RS

5.8

Varity_R

0.34

gMVP

0.60

Mutation Taster

=1/99

disease causing

(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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18-65809771-C-G

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