Genetic Variant TJP2:c.61-7344G>C (chr9-69205204-G-C) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001170416.2(TJP2):c.43G>C(p.Val15Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00101 in 1,537,306 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0050 ( 13 hom., cov: 33)

Exomes 𝑓: 0.00057 ( 8 hom. )

Consequence

TJP2
NM_001170416.2 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 2.32

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: PanelApp Australia, 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: AR, Unknown Classification: LIMITED Submitted by: PanelApp Australia, 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: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0037374794).

BP6

Variant 9-69205204-G-C is Benign according to our data. Variant chr9-69205204-G-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 178677.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00505 (769/152362) while in subpopulation AFR AF = 0.0178 (742/41590). AF 95% confidence interval is 0.0168. There are 13 homozygotes in GnomAd4. There are 384 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 13 AD,Unknown,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001170416.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TJP2	NM_004817.4	MANE Select	c.61-7344G>C		intron	N/A	NP_004808.2
TJP2	NM_001170416.2		c.43G>C	p.Val15Leu	missense	Exon 1 of 23	NP_001163887.1	Q9UDY2-7
TJP2	NM_001369875.1		c.43G>C	p.Val15Leu	missense	Exon 1 of 23	NP_001356804.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
TJP2	ENST00000377245.9	TSL:1 MANE Select	c.61-7344G>C	intron	N/A	ENSP00000366453.4	Q9UDY2-1
ENSG00000285130	ENST00000642889.1		c.448-7344G>C	intron	N/A	ENSP00000493780.1	A0A2R8YDH4
TJP2	ENST00000348208.9	TSL:1	c.61-7344G>C	intron	N/A	ENSP00000345893.4	Q9UDY2-2

Frequencies

GnomAD3 genomes

AF:

0.00506

AC:

770

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0179

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00124

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.00128

AC:

179

AN:

139486

AF XY:

0.00102

show subpopulations

Gnomad AFR exome

AF:

0.0204

Gnomad AMR exome

AF:

0.000651

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000715

Gnomad OTH exome

AF:

0.000476

GnomAD4 exome

AF:

0.000565

AC:

783

AN:

1384944

Hom.:

Cov.:

AF XY:

0.000524

AC XY:

358

AN XY:

683400

show subpopulations

African (AFR)

AF:

0.0200

AC:

631

AN:

31594

American (AMR)

AF:

0.000980

AC:

AN:

35700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35734

South Asian (SAS)

AF:

0.0000883

AC:

AN:

79234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

35004

Middle Eastern (MID)

AF:

0.000527

AC:

AN:

5696

European-Non Finnish (NFE)

AF:

0.0000148

AC:

AN:

1078886

Other (OTH)

AF:

0.00157

AC:

AN:

57914

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.462

Heterozygous variant carriers

121

162

202

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

110

<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:

0.00505

AC:

769

AN:

152362

Hom.:

Cov.:

AF XY:

0.00515

AC XY:

384

AN XY:

74498

show subpopulations

African (AFR)

AF:

0.0178

AC:

742

AN:

41590

American (AMR)

AF:

0.00124

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.000414

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68036

Other (OTH)

AF:

0.00189

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

125

166

208

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.000471

Hom.:

Bravo

AF:

0.00597

ESP6500AA

AF:

0.0152

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00168

AC:

Asia WGS

AF:

0.00144

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

not specified (1)

TJP2-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.63

BayesDel_noAF

Benign

-0.66

CADD

Benign

(source)

DANN

Uncertain

0.98

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.11

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.51

MetaRNN

Benign

0.0037

MetaSVM

Benign

-0.96

PhyloP100

2.3

PrimateAI

Benign

0.41

PROVEAN

Benign

0.030

REVEL

Benign

0.028

Sift

Benign

0.25

Sift4G

Benign

0.17

Vest4

0.15

MVP

0.21

MPC

0.19

ClinPred

0.0090

GERP RS

3.7

PromoterAI

-0.031

Neutral

(source)

gMVP

0.13

Mutation Taster

=98/2

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over