3-85883320-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001256502.2(CADM2):​c.-84C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,613,434 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

CADM2
NM_001256502.2 5_prime_UTR_premature_start_codon_gain

Scores

4
11
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.02
Variant links:
Genes affected
CADM2 (HGNC:29849): (cell adhesion molecule 2) This gene encodes a member of the synaptic cell adhesion molecule 1 (SynCAM) family which belongs to the immunoglobulin (Ig) superfamily. The encoded protein has three Ig-like domains and a cytosolic protein 4.1 binding site near the C-terminus. Proteins belonging to the protein 4.1 family crosslink spectrin and interact with other cytoskeletal proteins. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CADM2NM_001167675.2 linkuse as main transcriptc.268C>T p.Arg90Cys missense_variant 4/10 ENST00000383699.8 NP_001161147.1 Q8N3J6-2G3XHN4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CADM2ENST00000383699.8 linkuse as main transcriptc.268C>T p.Arg90Cys missense_variant 4/101 NM_001167675.2 ENSP00000373200.3 Q8N3J6-2
CADM2ENST00000405615.2 linkuse as main transcriptc.247C>T p.Arg83Cys missense_variant 3/101 ENSP00000384193.2 Q8N3J6-3
CADM2ENST00000407528.6 linkuse as main transcriptc.241C>T p.Arg81Cys missense_variant 3/101 ENSP00000384575.2 Q8N3J6-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152060
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000797
AC:
2
AN:
250796
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135546
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000547
AC:
8
AN:
1461256
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
726902
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74390
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 01, 2024The c.247C>T (p.R83C) alteration is located in exon 3 (coding exon 3) of the CADM2 gene. This alteration results from a C to T substitution at nucleotide position 247, causing the arginine (R) at amino acid position 83 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
Pathogenic
0.91
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
0.0
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.26
.;T;.
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Pathogenic
0.98
D
M_CAP
Uncertain
0.10
D
MetaRNN
Uncertain
0.66
D;D;D
MetaSVM
Benign
-0.46
T
MutationAssessor
Uncertain
2.3
.;M;.
PrimateAI
Pathogenic
0.86
D
PROVEAN
Uncertain
-3.9
D;D;D
REVEL
Uncertain
0.32
Sift
Uncertain
0.0040
D;D;D
Sift4G
Uncertain
0.014
D;D;D
Polyphen
1.0
.;D;D
Vest4
0.80
MVP
0.51
MPC
1.4
ClinPred
0.98
D
GERP RS
5.5
Varity_R
0.31
gMVP
0.69

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs139991481; hg19: chr3-85932470; COSMIC: COSV67406856; API