chr9-69173991-G-A

Position:

• chr9-69173991-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The ENST00000636438.1(TJP2):​c.237+22220G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00374 in 985,062 control chromosomes in the GnomAD database, including 94 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.017 (61 hom., cov: 32)
  • Exomes 𝑓: 0.0014 (33 hom.)
• Consequence: TJP2 ENST00000636438.1 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.39

Genes affected

TJP2 (HGNC:11828): (tight junction protein 2) This gene encodes a zonula occluden that is a member of the membrane-associated guanylate kinase homolog family. The encoded protein functions as a component of the tight junction barrier in epithelial and endothelial cells and is necessary for proper assembly of tight junctions. Mutations in this gene have been identified in patients with hypercholanemia, and genomic duplication of a 270 kb region including this gene causes autosomal dominant deafness-51. Alternatively spliced transcripts encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BP6: Variant 9-69173991-G-A is Benign according to our data. Variant chr9-69173991-G-A is described in ClinVar as [Benign]. Clinvar id is 1280535.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0561 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TJP2	NM_001170414.2	c.-10+22220G>A		intron_variant
TJP2	NM_001369870.1	c.-10+22220G>A		intron_variant
TJP2	NM_001369871.1	c.-127-11096G>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TJP2	ENST00000423935.6	c.-10+22220G>A		intron_variant		2
TJP2	ENST00000606364.5	c.-10+22220G>A		intron_variant		4
TJP2	ENST00000636438.1	c.237+22220G>A		intron_variant		5		A2

Frequencies

GnomAD3 genomes AF: 0.0167 AC: 2533 AN: 151850 Hom.: 62 Cov.: 32

Gnomad AFR AF: 0.0581

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00662

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000829

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00323

Gnomad NFE AF: 0.000147

Gnomad OTH AF: 0.00669

GnomAD4 exome AF: 0.00137 AC: 1145 AN: 833102 Hom.: 33 AF XY: 0.00125 AC XY: 481 AN XY: 384708

Gnomad4 AFR exome AF: 0.0616

Gnomad4 AMR exome AF: 0.00407

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000275

Gnomad4 SAS exome AF: 0.000122

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000866

Gnomad4 OTH exome AF: 0.00352

GnomAD4 genome AF: 0.0167 AC: 2535 AN: 151960 Hom.: 61 Cov.: 32 AF XY: 0.0162 AC XY: 1200 AN XY: 74278

Gnomad4 AFR AF: 0.0580

Gnomad4 AMR AF: 0.00661

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000829

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000147

Gnomad4 OTH AF: 0.00662

Alfa AF: 0.0121 Hom.: 3

Bravo AF: 0.0187

Asia WGS AF: 0.00347 AC: 12 AN: 3466

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jan 25, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	8.4
DANN	Benign	0.78
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs113137067; hg19: chr9-71788907;