1-205061966-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_005076.5(CNTN2):​c.1075C>T​(p.Arg359Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,582 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CNTN2
NM_005076.5 missense

Scores

10
8
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.81
Variant links:
Genes affected
CNTN2 (HGNC:2172): (contactin 2) This gene encodes a member of the contactin family of proteins, part of the immunoglobulin superfamily of cell adhesion molecules. The encoded glycosylphosphatidylinositol (GPI)-anchored neuronal membrane protein plays a role in the proliferation, migration, and axon guidance of neurons of the developing cerebellum. A mutation in this gene may be associated with adult myoclonic epilepsy. [provided by RefSeq, Sep 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CNTN2. . Gene score misZ 2.5878 (greater than the threshold 3.09). Trascript score misZ 3.2882 (greater than threshold 3.09). GenCC has associacion of gene with benign adult familial myoclonic epilepsy, complex neurodevelopmental disorder, epilepsy, familial adult myoclonic, 5.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.866

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CNTN2NM_005076.5 linkuse as main transcriptc.1075C>T p.Arg359Cys missense_variant 9/23 ENST00000331830.7 NP_005067.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CNTN2ENST00000331830.7 linkuse as main transcriptc.1075C>T p.Arg359Cys missense_variant 9/231 NM_005076.5 ENSP00000330633 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000403
AC:
1
AN:
247836
Hom.:
0
AF XY:
0.00000743
AC XY:
1
AN XY:
134580
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000895
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460582
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
726602
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000756
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000594

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.70
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.22
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.62
D;D;.
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Pathogenic
0.98
.;.;D
M_CAP
Uncertain
0.20
D
MetaRNN
Pathogenic
0.87
D;D;D
MetaSVM
Uncertain
-0.25
T
MutationAssessor
Uncertain
2.5
M;M;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.69
T
PROVEAN
Pathogenic
-6.2
.;D;.
REVEL
Pathogenic
0.65
Sift
Pathogenic
0.0
.;D;.
Sift4G
Pathogenic
0.0010
.;D;.
Polyphen
1.0
D;D;.
Vest4
0.87
MutPred
0.62
Gain of catalytic residue at W360 (P = 5e-04);Gain of catalytic residue at W360 (P = 5e-04);Gain of catalytic residue at W360 (P = 5e-04);
MVP
0.89
MPC
1.4
ClinPred
1.0
D
GERP RS
5.2
Varity_R
0.75
gMVP
0.68

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: rs371816961; hg19: chr1-205031094; COSMIC: COSV59350646; COSMIC: COSV59350646; API