1-26183819-AC-A

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBA1

The NM_006314.3(CNKSR1):​c.851del​(p.Pro284HisfsTer74) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0561 in 1,335,818 control chromosomes in the GnomAD database, including 2,058 homozygotes. Variant has been reported in ClinVar as Benign (β˜…β˜…). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.034 ( 101 hom., cov: 28)
Exomes 𝑓: 0.058 ( 1957 hom. )

Consequence

CNKSR1
NM_006314.3 frameshift

Scores

Not classified

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.256
Variant links:
Genes affected
CNKSR1 (HGNC:19700): (connector enhancer of kinase suppressor of Ras 1) This gene encodes a protein containing several motifs involved in protein-protein interaction, including PDZ, PH (Pleckstrin homology), and SAM (sterile alpha motif) domains. The encoded protein acts as a scaffold component for receptor tyrosine kinase signaling and may mediate crosstalk between different signaling pathways. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP6
Variant 1-26183819-AC-A is Benign according to our data. Variant chr1-26183819-AC-A is described in ClinVar as [Benign]. Clinvar id is 252663.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.055 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CNKSR1NM_006314.3 linkuse as main transcriptc.851del p.Pro284HisfsTer74 frameshift_variant 9/21 ENST00000361530.11 NP_006305.2
CNKSR1NM_001297647.2 linkuse as main transcriptc.872del p.Pro291HisfsTer74 frameshift_variant 9/21 NP_001284576.1
CNKSR1NM_001297648.2 linkuse as main transcriptc.77del p.Pro26HisfsTer74 frameshift_variant 9/21 NP_001284577.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CNKSR1ENST00000361530.11 linkuse as main transcriptc.851del p.Pro284HisfsTer74 frameshift_variant 9/211 NM_006314.3 ENSP00000354609 P1Q969H4-2

Frequencies

GnomAD3 genomes
AF:
0.0344
AC:
4146
AN:
120542
Hom.:
101
Cov.:
28
show subpopulations
Gnomad AFR
AF:
0.00865
Gnomad AMI
AF:
0.0187
Gnomad AMR
AF:
0.0170
Gnomad ASJ
AF:
0.0167
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0131
Gnomad FIN
AF:
0.0368
Gnomad MID
AF:
0.00376
Gnomad NFE
AF:
0.0567
Gnomad OTH
AF:
0.0274
GnomAD3 exomes
AF:
0.0332
AC:
8223
AN:
247884
Hom.:
211
AF XY:
0.0334
AC XY:
4498
AN XY:
134606
show subpopulations
Gnomad AFR exome
AF:
0.00819
Gnomad AMR exome
AF:
0.0124
Gnomad ASJ exome
AF:
0.0186
Gnomad EAS exome
AF:
0.0000547
Gnomad SAS exome
AF:
0.0109
Gnomad FIN exome
AF:
0.0409
Gnomad NFE exome
AF:
0.0544
Gnomad OTH exome
AF:
0.0393
GnomAD4 exome
AF:
0.0582
AC:
70784
AN:
1215220
Hom.:
1957
Cov.:
29
AF XY:
0.0566
AC XY:
34315
AN XY:
606542
show subpopulations
Gnomad4 AFR exome
AF:
0.00923
Gnomad4 AMR exome
AF:
0.0159
Gnomad4 ASJ exome
AF:
0.0274
Gnomad4 EAS exome
AF:
0.000147
Gnomad4 SAS exome
AF:
0.0121
Gnomad4 FIN exome
AF:
0.0556
Gnomad4 NFE exome
AF:
0.0676
Gnomad4 OTH exome
AF:
0.0587
GnomAD4 genome
AF:
0.0344
AC:
4145
AN:
120598
Hom.:
101
Cov.:
28
AF XY:
0.0316
AC XY:
1826
AN XY:
57768
show subpopulations
Gnomad4 AFR
AF:
0.00864
Gnomad4 AMR
AF:
0.0169
Gnomad4 ASJ
AF:
0.0167
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0131
Gnomad4 FIN
AF:
0.0368
Gnomad4 NFE
AF:
0.0567
Gnomad4 OTH
AF:
0.0272
Alfa
AF:
0.00546
Hom.:
10
EpiCase
AF:
0.0461
EpiControl
AF:
0.0460

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingGenomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of PhiladelphiaOct 16, 2015- -
Usher syndrome type 2C Benign:1
Benign, criteria provided, single submitterresearchBroad Center for Mendelian Genomics, Broad Institute of MIT and Harvard-The homozygous c.851delC variant in CNKSR1 has been identified in an individual with intellectual disability in the literature (PMID: 21937992). However, this variant is classified as benign for autosomal recessive intellectual disability because it has been identified in >5% of European (non-Finnish) chromosomes and 108 total homozygotes, by ExAC (http://gnomad.broadinstitute.org/). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxDec 06, 2018This variant is associated with the following publications: (PMID: 30450701, 27535533, 21937992) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs781114848; hg19: chr1-26510310; API