3-190410026-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_006580.4(CLDN16):​c.698C>T​(p.Thr233Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000658 in 152,078 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

CLDN16
NM_006580.4 missense

Scores

9
6
4

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.75
Variant links:
Genes affected
CLDN16 (HGNC:2037): (claudin 16) Tight junctions represent one mode of cell-to-cell adhesion in epithelial or endothelial cell sheets, forming continuous seals around cells and serving as a physical barrier to prevent solutes and water from passing freely through the paracellular space. These junctions are comprised of sets of continuous networking strands in the outwardly facing cytoplasmic leaflet, with complementary grooves in the inwardly facing extracytoplasmic leaflet. The protein encoded by this gene, a member of the claudin family, is an integral membrane protein and a component of tight junction strands. It is found primarily in the kidneys, specifically in the thick ascending limb of Henle, where it acts as either an intercellular pore or ion concentration sensor to regulate the paracellular resorption of magnesium ions. Defects in this gene are a cause of primary hypomagnesemia, which is characterized by massive renal magnesium wasting with hypomagnesemia and hypercalciuria, resulting in nephrocalcinosis and renal failure. This gene and the CLDN1 gene are clustered on chromosome 3q28. [provided by RefSeq, Jun 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a chain Claudin-16 (size 234) in uniprot entity CLD16_HUMAN there are 9 pathogenic changes around while only 1 benign (90%) in NM_006580.4
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CLDN16NM_006580.4 linkuse as main transcriptc.698C>T p.Thr233Ile missense_variant 5/5 ENST00000264734.3 NP_006571.2 Q9Y5I7
CLDN16NM_001378492.1 linkuse as main transcriptc.698C>T p.Thr233Ile missense_variant 9/9 NP_001365421.1
CLDN16NM_001378493.1 linkuse as main transcriptc.698C>T p.Thr233Ile missense_variant 8/8 NP_001365422.1
CLDN16XM_047447333.1 linkuse as main transcriptc.698C>T p.Thr233Ile missense_variant 7/7 XP_047303289.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CLDN16ENST00000264734.3 linkuse as main transcriptc.698C>T p.Thr233Ile missense_variant 5/51 NM_006580.4 ENSP00000264734.3 Q9Y5I7
CLDN16ENST00000456423.2 linkuse as main transcriptc.*88C>T downstream_gene_variant 1 ENSP00000414136.2 F6SGM4

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152078
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD4 exome
Cov.:
31
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152078
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74292
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.82
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
27
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.23
T
Eigen
Pathogenic
0.79
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.86
D
M_CAP
Uncertain
0.17
D
MetaRNN
Uncertain
0.72
D
MetaSVM
Pathogenic
0.82
D
MutationAssessor
Uncertain
2.5
M
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-1.7
N
REVEL
Pathogenic
0.69
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0060
D
Polyphen
1.0
D
Vest4
0.63
MutPred
0.41
Loss of disorder (P = 0.0067);
MVP
0.98
MPC
0.54
ClinPred
0.96
D
GERP RS
5.7
Varity_R
0.36
gMVP
0.61

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs121908542; hg19: chr3-190127815; API