16-3013395-G-A

Variant names:

• chr16-3013395-G-A
• rs374429657
• NM_020982.4:c.33G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_020982.4(CLDN9):​c.33G>A​(p.Met11Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,400 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CLDN9 NM_020982.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.385
• Publications: 0 publications found

Genes affected

CLDN9 (HGNC:2051): (claudin 9) 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. This protein is one of the entry cofactors for hepatitis C virus. Mouse studies revealed that this gene is required for the preservation of sensory cells in the hearing organ and the gene deficiency is associated with deafness. [provided by RefSeq, Jun 2010]

CLDN9 Gene-Disease associations (from GenCC):

• hearing loss, autosomal recessive 116

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.10455489).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020982.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLDN9	NM_020982.4	MANE Select	c.33G>A	p.Met11Ile	missense	Exon 1 of 1	NP_066192.1	O95484

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CLDN9	ENST00000445369.3	TSL:6 MANE Select	c.33G>A	p.Met11Ile	missense	Exon 1 of 1	ENSP00000398017.2	O95484

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000400 AC: 1 AN: 249982 AF XY: 0.00000739

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461400 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727044

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44710

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26114

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86236

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53042

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111968

Other (OTH) AF: 0.00 AC: 0 AN: 60384

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.32
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	17
DANN	Benign	0.91
DEOGEN2	Benign	0.32	T
Eigen	Benign	-0.63
Eigen_PC	Benign	-0.42
FATHMM_MKL	Benign	0.27	N
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.10	T
MetaSVM	Benign	-0.73	T
MutationAssessor	Benign	-0.40	N
PhyloP100		0.39
PrimateAI	Uncertain	0.53	T
PROVEAN	Benign	0.88	N
REVEL	Benign	0.17
Sift	Benign	0.91	T
Sift4G	Benign	0.58	T
Polyphen		0.0	B
Vest4		0.16
MutPred		0.62		Loss of disorder (P = 0.0824)
MVP		0.44
MPC		0.021
ClinPred		0.050	T
GERP RS		3.7
PromoterAI		-0.0074	Neutral
Varity_R		0.25
gMVP		0.47
Mutation Taster		=80/20	polymorphism

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

Other links and lift over

dbSNP: rs374429657; hg19: chr16-3063396;