rs2309428

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_004817.4(TJP2):​c.1446C>A​(p.Asp482Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.803 in 1,606,646 control chromosomes in the GnomAD database, including 519,596 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.78 ( 46428 hom., cov: 31)
Exomes 𝑓: 0.81 ( 473168 hom. )

Consequence

TJP2
NM_004817.4 missense

Scores

18

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.100

Publications

46 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)

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=8.9933616E-7).
BP6
Variant 9-69228107-C-A is Benign according to our data. Variant chr9-69228107-C-A is described in ClinVar as Benign. ClinVar VariationId is 44091.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.871 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TJP2NM_004817.4 linkc.1446C>A p.Asp482Glu missense_variant Exon 9 of 23 ENST00000377245.9 NP_004808.2 Q9UDY2-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TJP2ENST00000377245.9 linkc.1446C>A p.Asp482Glu missense_variant Exon 9 of 23 1 NM_004817.4 ENSP00000366453.4 Q9UDY2-1
ENSG00000285130ENST00000642889.1 linkc.1833C>A p.Asp611Glu missense_variant Exon 11 of 25 ENSP00000493780.1 A0A2R8YDH4

Frequencies

GnomAD3 genomes
AF:
0.778
AC:
118094
AN:
151888
Hom.:
46394
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.661
Gnomad AMI
AF:
0.833
Gnomad AMR
AF:
0.819
Gnomad ASJ
AF:
0.830
Gnomad EAS
AF:
0.893
Gnomad SAS
AF:
0.750
Gnomad FIN
AF:
0.869
Gnomad MID
AF:
0.845
Gnomad NFE
AF:
0.813
Gnomad OTH
AF:
0.788
GnomAD2 exomes
AF:
0.812
AC:
194472
AN:
239456
AF XY:
0.808
show subpopulations
Gnomad AFR exome
AF:
0.653
Gnomad AMR exome
AF:
0.864
Gnomad ASJ exome
AF:
0.822
Gnomad EAS exome
AF:
0.889
Gnomad FIN exome
AF:
0.872
Gnomad NFE exome
AF:
0.812
Gnomad OTH exome
AF:
0.814
GnomAD4 exome
AF:
0.806
AC:
1171954
AN:
1454640
Hom.:
473168
Cov.:
58
AF XY:
0.804
AC XY:
581022
AN XY:
722790
show subpopulations
African (AFR)
AF:
0.657
AC:
21892
AN:
33314
American (AMR)
AF:
0.857
AC:
37289
AN:
43490
Ashkenazi Jewish (ASJ)
AF:
0.820
AC:
21289
AN:
25972
East Asian (EAS)
AF:
0.910
AC:
35949
AN:
39506
South Asian (SAS)
AF:
0.744
AC:
63305
AN:
85100
European-Finnish (FIN)
AF:
0.870
AC:
46167
AN:
53058
Middle Eastern (MID)
AF:
0.813
AC:
4686
AN:
5762
European-Non Finnish (NFE)
AF:
0.806
AC:
893287
AN:
1108258
Other (OTH)
AF:
0.799
AC:
48090
AN:
60180
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
12905
25811
38716
51622
64527
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20806
41612
62418
83224
104030
<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:
0.777
AC:
118179
AN:
152006
Hom.:
46428
Cov.:
31
AF XY:
0.780
AC XY:
57949
AN XY:
74274
show subpopulations
African (AFR)
AF:
0.662
AC:
27383
AN:
41390
American (AMR)
AF:
0.820
AC:
12508
AN:
15262
Ashkenazi Jewish (ASJ)
AF:
0.830
AC:
2879
AN:
3470
East Asian (EAS)
AF:
0.893
AC:
4623
AN:
5178
South Asian (SAS)
AF:
0.750
AC:
3604
AN:
4808
European-Finnish (FIN)
AF:
0.869
AC:
9211
AN:
10594
Middle Eastern (MID)
AF:
0.854
AC:
251
AN:
294
European-Non Finnish (NFE)
AF:
0.813
AC:
55299
AN:
67990
Other (OTH)
AF:
0.788
AC:
1661
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1334
2667
4001
5334
6668
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
864
1728
2592
3456
4320
<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:
0.799
Hom.:
153473
Bravo
AF:
0.769
TwinsUK
AF:
0.797
AC:
2957
ALSPAC
AF:
0.801
AC:
3087
ESP6500AA
AF:
0.658
AC:
2898
ESP6500EA
AF:
0.809
AC:
6961
ExAC
AF:
0.800
AC:
97085
Asia WGS
AF:
0.820
AC:
2851
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
May 07, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Asp459Glu in Exon 10 of TJP2: This variant is not expected to have clinical sign ificance because it has been identified in 34.3% (1284/3738) of African American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http ://evs.gs.washington.edu/EVS; dbSNP rs2309428). -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 09, 2017
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided Benign:2
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Cholestasis, progressive familial intrahepatic, 4 Benign:1
Sep 10, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hypercholanemia, familial 1 Benign:1
Sep 10, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.059
BayesDel_addAF
Benign
-0.80
T
BayesDel_noAF
Benign
-0.78
CADD
Benign
3.9
DANN
Benign
0.21
DEOGEN2
Benign
0.11
.;.;.;.;T;.;T;.;.;.;.;.;.;.
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.015
N
LIST_S2
Benign
0.51
T;T;T;T;.;T;T;T;T;T;T;T;T;T
MetaRNN
Benign
9.0e-7
T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
-0.48
.;.;.;.;N;N;N;.;.;.;.;.;.;.
PhyloP100
-0.10
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.080
.;N;.;.;.;N;N;.;.;.;N;.;N;.
REVEL
Benign
0.015
Sift
Benign
1.0
.;T;.;.;.;T;T;.;.;.;T;.;T;.
Sift4G
Benign
1.0
.;T;.;.;.;T;T;.;.;.;T;.;T;.
Polyphen
0.0
.;.;.;.;B;B;B;.;.;.;.;.;.;.
Vest4
0.038, 0.023, 0.040, 0.063
MutPred
0.21
.;.;.;.;Gain of glycosylation at P484 (P = 0.0859);Gain of glycosylation at P484 (P = 0.0859);Gain of glycosylation at P484 (P = 0.0859);Gain of glycosylation at P484 (P = 0.0859);Gain of glycosylation at P484 (P = 0.0859);.;.;.;.;.;
MPC
0.18
ClinPred
0.00067
T
GERP RS
-1.3
PromoterAI
-0.0080
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.051
gMVP
0.12
Mutation Taster
=99/1
polymorphism (auto)

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

Other links and lift over

dbSNP: rs2309428; hg19: chr9-71843023; COSMIC: COSV55264387; API