1-155264262-C-G
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Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2
The NM_001294338.2(CLK2):āc.1185G>Cā(p.Arg395Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000752 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ).
Frequency
Genomes: not found (cov: 32)
Exomes š: 0.0000075 ( 0 hom. )
Consequence
CLK2
NM_001294338.2 missense
NM_001294338.2 missense
Scores
7
6
5
Clinical Significance
Conservation
PhyloP100: 2.63
Genes affected
CLK2 (HGNC:2069): (CDC like kinase 2) This gene encodes a dual specificity protein kinase that phosphorylates serine/threonine and tyrosine-containing substrates. Activity of this protein regulates serine- and arginine-rich (SR) proteins of the spliceosomal complex, thereby influencing alternative transcript splicing. Chromosomal translocations have been characterized between this locus and the PAFAH1B3 (platelet-activating factor acetylhydrolase 1b, catalytic subunit 3 (29kDa)) gene on chromosome 19, resulting in the production of a fusion protein. Note that this gene is distinct from the TELO2 gene (GeneID:9894), which shares the CLK2 alias, but encodes a protein that is involved in telomere length regulation. There is a pseudogene for this gene on chromosome 7. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -3 ACMG points.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.823
BS2
High AC in GnomAdExome4 at 11 AD gene.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 genomes
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32
GnomAD3 exomes AF: 0.00000795 AC: 2AN: 251496Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135922
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GnomAD4 exome AF: 0.00000752 AC: 11AN: 1461894Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4AN XY: 727248
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GnomAD4 genome Cov.: 32
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 29, 2023 | The c.1182G>C (p.R394S) alteration is located in exon 11 (coding exon 10) of the CLK2 gene. This alteration results from a G to C substitution at nucleotide position 1182, causing the arginine (R) at amino acid position 394 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
.;T;T
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
M_CAP
Benign
D
MetaRNN
Pathogenic
D;D;D
MetaSVM
Benign
T
MutationAssessor
Benign
.;L;.
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D;D;D
REVEL
Uncertain
Sift
Uncertain
D;D;D
Sift4G
Uncertain
D;D;D
Polyphen
D;D;.
Vest4
MutPred
0.56
.;Loss of MoRF binding (P = 0.0404);.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at