4-183322048-A-G
Variant names:
Variant summary
Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_001185149.1(CLDN24):c.379T>C(p.Trp127Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,613,840 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 (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )
Consequence
CLDN24
NM_001185149.1 missense
NM_001185149.1 missense
Scores
4
7
8
Clinical Significance
Conservation
PhyloP100: 6.84
Publications
0 publications found
Genes affected
CLDN24 (HGNC:37200): (claudin 24) This gene encodes a member of the claudin family. Claudins are integral membrane proteins and components of tight junction strands. Tight junction strands serve as a physical barrier to prevent solutes and water from passing freely through the paracellular space between epithelial or endothelial cell sheets, and also play critical roles in maintaining cell polarity and signal transductions. The protein encoded by this gene is 75% identical to the mouse homolog. This gene is upstream of the CLDN22 gene, which overlaps the WWC2 gene on the opposite strand in the genome.[provided by RefSeq, Aug 2010]
Genome browser will be placed here
ACMG classification
Classification was made for transcript
Our verdict: Likely_pathogenic. The variant received 6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.941
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes 0.0000131 AC: 2AN: 152190Hom.: 0 Cov.: 32 show subpopulations
GnomAD3 genomes
AF:
AC:
2
AN:
152190
Hom.:
Cov.:
32
Gnomad AFR
AF:
Gnomad AMI
AF:
Gnomad AMR
AF:
Gnomad ASJ
AF:
Gnomad EAS
AF:
Gnomad SAS
AF:
Gnomad FIN
AF:
Gnomad MID
AF:
Gnomad NFE
AF:
Gnomad OTH
AF:
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461650Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1AN XY: 727124 show subpopulations ⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
GnomAD4 exome
AF:
AC:
1
AN:
1461650
Hom.:
Cov.:
34
AF XY:
AC XY:
1
AN XY:
727124
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
AC:
1
AN:
33470
American (AMR)
AF:
AC:
0
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
26130
East Asian (EAS)
AF:
AC:
0
AN:
39700
South Asian (SAS)
AF:
AC:
0
AN:
86246
European-Finnish (FIN)
AF:
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
AC:
0
AN:
1111834
Other (OTH)
AF:
AC:
0
AN:
60374
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome 0.0000131 AC: 2AN: 152190Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74352 show subpopulations
GnomAD4 genome
AF:
AC:
2
AN:
152190
Hom.:
Cov.:
32
AF XY:
AC XY:
1
AN XY:
74352
show subpopulations
African (AFR)
AF:
AC:
2
AN:
41450
American (AMR)
AF:
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
3470
East Asian (EAS)
AF:
AC:
0
AN:
5188
South Asian (SAS)
AF:
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
AC:
0
AN:
68034
Other (OTH)
AF:
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
Hom.:
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Apr 29, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing
The c.379T>C (p.W127R) alteration is located in exon 1 (coding exon 1) of the CLDN24 gene. This alteration results from a T to C substitution at nucleotide position 379, causing the tryptophan (W) at amino acid position 127 to be replaced by an arginine (R). 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
Uncertain
DANN
Benign
DEOGEN2
Uncertain
D
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T
M_CAP
Benign
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M
PhyloP100
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D
REVEL
Pathogenic
Sift
Benign
T
Sift4G
Benign
T
Vest4
MutPred
Gain of methylation at W127 (P = 0.013);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
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