chrX-21470772-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_014927.5(CNKSR2):​c.526A>T​(p.Thr176Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000112 in 892,776 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 22)
Exomes 𝑓: 0.0000011 ( 0 hom. 0 hem. )

Consequence

CNKSR2
NM_014927.5 missense

Scores

1
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.11
Variant links:
Genes affected
CNKSR2 (HGNC:19701): (connector enhancer of kinase suppressor of Ras 2) This gene encodes a multidomain protein that functions as a scaffold protein to mediate the mitogen-activated protein kinase pathways downstream from Ras. This gene product is induced by vitamin D and inhibits apoptosis in certain cancer cells. It may also play a role in ternary complex assembly of synaptic proteins at the postsynaptic membrane and coupling of signal transduction to membrane/cytoskeletal remodeling. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 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), CNKSR2. . Gene score misZ 3.6053 (greater than the threshold 3.09). GenCC has associacion of gene with X-linked complex neurodevelopmental disorder, intellectual disability, X-linked, syndromic, Houge type, non-syndromic X-linked intellectual disability, undetermined early-onset epileptic encephalopathy.
BP4
Computational evidence support a benign effect (MetaRNN=0.3320495).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CNKSR2NM_014927.5 linkuse as main transcriptc.526A>T p.Thr176Ser missense_variant 5/22 ENST00000379510.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CNKSR2ENST00000379510.5 linkuse as main transcriptc.526A>T p.Thr176Ser missense_variant 5/221 NM_014927.5 P1Q8WXI2-1

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD4 exome
AF:
0.00000112
AC:
1
AN:
892776
Hom.:
0
Cov.:
13
AF XY:
0.00
AC XY:
0
AN XY:
250476
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:
0.00000146
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
22

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 28, 2024The c.526A>T (p.T176S) alteration is located in exon 5 (coding exon 5) of the CNKSR2 gene. This alteration results from a A to T substitution at nucleotide position 526, causing the threonine (T) at amino acid position 176 to be replaced by a serine (S). 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
Benign
0.16
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
19
DANN
Uncertain
0.98
DEOGEN2
Benign
0.34
.;.;.;.;.;.;.;.;.;.;T;.;.
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.80
T;T;T;T;T;T;T;T;T;T;T;T;T
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.33
T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.90
L;.;L;.;L;.;.;.;.;.;L;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Benign
-1.7
.;.;N;.;N;N;.;.;.;.;N;.;.
REVEL
Benign
0.14
Sift
Benign
0.43
.;.;T;.;T;T;.;.;.;.;T;.;.
Sift4G
Benign
0.33
.;.;T;.;T;T;.;.;.;.;T;.;.
Polyphen
0.022
.;.;.;.;.;.;.;.;.;.;B;.;.
Vest4
0.56, 0.58, 0.48, 0.47
MutPred
0.55
Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);Loss of phosphorylation at T176 (P = 0.2016);
MVP
0.70
MPC
0.85
ClinPred
0.80
D
GERP RS
5.5
Varity_R
0.46
gMVP
0.47

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

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-21488890; API