chr7-148415470-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_014141.6(CNTNAP2):ā€‹c.3850C>Gā€‹(p.Arg1284Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,848 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 š‘“: 6.8e-7 ( 0 hom. )

Consequence

CNTNAP2
NM_014141.6 missense

Scores

10
7
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.03
Variant links:
Genes affected
CNTNAP2 (HGNC:13830): (contactin associated protein 2) This gene encodes a member of the neurexin family which functions in the vertebrate nervous system as cell adhesion molecules and receptors. This protein, like other neurexin proteins, contains epidermal growth factor repeats and laminin G domains. In addition, it includes an F5/8 type C domain, discoidin/neuropilin- and fibrinogen-like domains, thrombospondin N-terminal-like domains and a putative PDZ binding site. This protein is localized at the juxtaparanodes of myelinated axons, and mediates interactions between neurons and glia during nervous system development and is also involved in localization of potassium channels within differentiating axons. This gene encompasses almost 1.5% of chromosome 7 and is one of the largest genes in the human genome. It is directly bound and regulated by forkhead box protein P2, a transcription factor related to speech and language development. This gene has been implicated in multiple neurodevelopmental disorders, including Gilles de la Tourette syndrome, schizophrenia, epilepsy, autism, ADHD and intellectual disability. [provided by RefSeq, Jul 2017]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.803

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CNTNAP2NM_014141.6 linkuse as main transcriptc.3850C>G p.Arg1284Gly missense_variant 24/24 ENST00000361727.8 NP_054860.1
LOC105375554XR_928094.2 linkuse as main transcriptn.210-20778G>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CNTNAP2ENST00000361727.8 linkuse as main transcriptc.3850C>G p.Arg1284Gly missense_variant 24/241 NM_014141.6 ENSP00000354778 P1Q9UHC6-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251300
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135812
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461848
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727220
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.89
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.22
CADD
Pathogenic
30
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.67
D;D;T;.
Eigen
Pathogenic
0.83
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.96
.;D;D;D
M_CAP
Benign
0.036
D
MetaRNN
Pathogenic
0.80
D;D;D;D
MetaSVM
Uncertain
-0.19
T
MutationAssessor
Pathogenic
3.1
M;M;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Pathogenic
-4.7
D;.;.;.
REVEL
Uncertain
0.54
Sift
Uncertain
0.0030
D;.;.;.
Sift4G
Uncertain
0.0020
D;.;D;D
Polyphen
1.0
D;D;.;.
Vest4
0.91
MutPred
0.49
Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);.;.;
MVP
0.92
MPC
0.30
ClinPred
0.98
D
GERP RS
5.4
Varity_R
0.76
gMVP
0.92

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: rs763809167; hg19: chr7-148112562; API