rs374200408

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS1_Supporting

The NM_001843.4(CNTN1):​c.821G>A​(p.Arg274Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000899 in 1,612,582 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. R274R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000086 ( 0 hom. )

Consequence

CNTN1
NM_001843.4 missense

Scores

2
5
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 4.76

Publications

5 publications found
Variant links:
Genes affected
CNTN1 (HGNC:2171): (contactin 1) The protein encoded by this gene is a member of the immunoglobulin superfamily. It is a glycosylphosphatidylinositol (GPI)-anchored neuronal membrane protein that functions as a cell adhesion molecule. It may play a role in the formation of axon connections in the developing nervous system. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]
CNTN1 Gene-Disease associations (from GenCC):
  • Compton-North congenital myopathy
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics
  • schizophrenia
    Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000132 (20/151940) while in subpopulation NFE AF = 0.00028 (19/67940). AF 95% confidence interval is 0.000182. There are 0 homozygotes in GnomAd4. There are 11 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001843.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CNTN1
NM_001843.4
MANE Select
c.821G>Ap.Arg274Gln
missense
Exon 9 of 24NP_001834.2
CNTN1
NM_175038.2
c.788G>Ap.Arg263Gln
missense
Exon 7 of 22NP_778203.1Q12860-2
CNTN1
NM_001256063.2
c.821G>Ap.Arg274Gln
missense
Exon 9 of 16NP_001242992.1Q12860-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CNTN1
ENST00000551295.7
TSL:1 MANE Select
c.821G>Ap.Arg274Gln
missense
Exon 9 of 24ENSP00000447006.1Q12860-1
CNTN1
ENST00000347616.5
TSL:1
c.821G>Ap.Arg274Gln
missense
Exon 8 of 23ENSP00000325660.3Q12860-1
CNTN1
ENST00000348761.2
TSL:1
c.788G>Ap.Arg263Gln
missense
Exon 7 of 22ENSP00000261160.3Q12860-2

Frequencies

GnomAD3 genomes
AF:
0.000132
AC:
20
AN:
151940
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.000280
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000680
AC:
17
AN:
250172
AF XY:
0.0000592
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000133
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000856
AC:
125
AN:
1460642
Hom.:
0
Cov.:
31
AF XY:
0.0000922
AC XY:
67
AN XY:
726608
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33424
American (AMR)
AF:
0.0000224
AC:
1
AN:
44618
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26086
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39650
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86244
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53402
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.000104
AC:
116
AN:
1111140
Other (OTH)
AF:
0.0000829
AC:
5
AN:
60320
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
6
13
19
26
32
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000132
AC:
20
AN:
151940
Hom.:
0
Cov.:
32
AF XY:
0.000148
AC XY:
11
AN XY:
74214
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41414
American (AMR)
AF:
0.00
AC:
0
AN:
15198
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000280
AC:
19
AN:
67940
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000995
Hom.:
0
Bravo
AF:
0.0000945
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Compton-North congenital myopathy (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.38
T
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.34
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.019
T
MetaRNN
Uncertain
0.66
D
MetaSVM
Benign
-0.73
T
MutationAssessor
Benign
1.0
L
PhyloP100
4.8
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.19
Sift
Benign
0.20
T
Sift4G
Benign
0.40
T
Polyphen
1.0
D
Vest4
0.69
MVP
0.75
MPC
0.62
ClinPred
0.22
T
GERP RS
4.4
Varity_R
0.24
gMVP
0.58
Mutation Taster
=71/29
polymorphism

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

Other links and lift over

dbSNP: rs374200408; hg19: chr12-41327516; COSMIC: COSV61637732; API