rs727504634

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_004817.4(TJP2):c.2987C>T(p.Pro996Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000312 in 1,603,406 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TJP2
NM_004817.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.38

Publications

1 publications found

Variant links:

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]

TJP2 Gene-Disease associations (from GenCC):

cholestasis, progressive familial intrahepatic, 4
Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
autosomal dominant nonsyndromic hearing loss
Inheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Orphanet
familial hypercholanemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
nonsyndromic genetic hearing loss
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
hypercholanemia, familial 1
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

TJP2 links:

ENSG00000285130 (HGNC:):

ENSG00000285130 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.30843538).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TJP2	NM_004817.4 link	c.2987C>T	p.Pro996Leu	missense_variant	Exon 20 of 23	ENST00000377245.9	NP_004808.2	Q9UDY2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TJP2	ENST00000377245.9 link	c.2987C>T	p.Pro996Leu	missense_variant	Exon 20 of 23	1	NM_004817.4	ENSP00000366453.4		Q9UDY2-1
ENSG00000285130	ENST00000642889.1 link	c.3374C>T	p.Pro1125Leu	missense_variant	Exon 22 of 25			ENSP00000493780.1		A0A2R8YDH4

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152190

Hom.:

Cov.:

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:

0.000385

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000868

AC:

AN:

230516

AF XY:

0.00000805

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000115

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000207

AC:

AN:

1451216

Hom.:

Cov.:

AF XY:

0.00000278

AC XY:

AN XY:

720714

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33228

American (AMR)

AF:

0.00

AC:

AN:

43746

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25904

East Asian (EAS)

AF:

0.0000509

AC:

AN:

39326

South Asian (SAS)

AF:

0.00

AC:

AN:

84416

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52708

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5736

European-Non Finnish (NFE)

AF:

9.04e-7

AC:

AN:

1106168

Other (OTH)

AF:

0.00

AC:

AN:

59984

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152190

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74344

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41430

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000385

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68046

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 10, 2013

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The Pro996Leu variant in TJP2 has not been reported in individuals with hearing loss or in large population studies. Computational analyses (biochemical amino a cid properties, conservation, AlignGVGD, PolyPhen2, and SIFT) do not provide str ong support for or against an impact to the protein. In summary, additional data is needed to determine the clinical significance of this variant. -

not provided

Uncertain:1

Apr 17, 2019

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.020

BayesDel_noAF

Uncertain

0.0

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.52

.;.;D;D;.;.;.

Eigen

Pathogenic

0.72

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Pathogenic

0.98

D;D;.;D;D;D;D

M_CAP

Benign

0.039

MetaRNN

Benign

0.31

T;T;T;T;T;T;T

MetaSVM

Benign

-1.2

MutationAssessor

Uncertain

2.1

.;.;M;M;.;.;.

PhyloP100

6.4

PrimateAI

Uncertain

0.49

PROVEAN

Uncertain

-3.4

.;.;.;D;.;D;.

REVEL

Benign

0.24

Sift

Uncertain

0.0020

.;.;.;D;.;D;.

Sift4G

Uncertain

0.015

.;.;.;D;.;D;.

Polyphen

1.0

.;.;D;D;.;.;.

Vest4

0.70, 0.69

MutPred

0.18

.;.;Loss of glycosylation at P996 (P = 0.0076);Loss of glycosylation at P996 (P = 0.0076);.;.;.;

MVP

0.66

MPC

0.65

ClinPred

0.82

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.25

gMVP

0.32

Mutation Taster

=66/34

polymorphism

(source)

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over