rs41305539

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.382C>A​(p.Gln128Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0376 in 1,612,422 control chromosomes in the GnomAD database, including 4,544 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 0.10 ( 1987 hom., cov: 33)
Exomes 𝑓: 0.031 ( 2557 hom. )

Consequence

TJP2
NM_004817.4 missense

Scores

18

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 1.02

Publications

14 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=0.0041084588).
BP6
Variant 9-69220926-C-A is Benign according to our data. Variant chr9-69220926-C-A is described in ClinVar as Benign. ClinVar VariationId is 44100.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.294 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TJP2NM_004817.4 linkc.382C>A p.Gln128Lys missense_variant Exon 5 of 23 ENST00000377245.9 NP_004808.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TJP2ENST00000377245.9 linkc.382C>A p.Gln128Lys missense_variant Exon 5 of 23 1 NM_004817.4 ENSP00000366453.4
ENSG00000285130ENST00000642889.1 linkc.769C>A p.Gln257Lys missense_variant Exon 7 of 25 ENSP00000493780.1

Frequencies

GnomAD3 genomes
AF:
0.105
AC:
15905
AN:
152190
Hom.:
1982
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.298
Gnomad AMI
AF:
0.0570
Gnomad AMR
AF:
0.0578
Gnomad ASJ
AF:
0.0510
Gnomad EAS
AF:
0.0492
Gnomad SAS
AF:
0.0980
Gnomad FIN
AF:
0.0365
Gnomad MID
AF:
0.0918
Gnomad NFE
AF:
0.0165
Gnomad OTH
AF:
0.0841
GnomAD2 exomes
AF:
0.0518
AC:
12984
AN:
250450
AF XY:
0.0497
show subpopulations
Gnomad AFR exome
AF:
0.310
Gnomad AMR exome
AF:
0.0303
Gnomad ASJ exome
AF:
0.0466
Gnomad EAS exome
AF:
0.0294
Gnomad FIN exome
AF:
0.0351
Gnomad NFE exome
AF:
0.0180
Gnomad OTH exome
AF:
0.0447
GnomAD4 exome
AF:
0.0306
AC:
44654
AN:
1460114
Hom.:
2557
Cov.:
33
AF XY:
0.0318
AC XY:
23113
AN XY:
726352
show subpopulations
African (AFR)
AF:
0.308
AC:
10303
AN:
33422
American (AMR)
AF:
0.0328
AC:
1465
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.0453
AC:
1184
AN:
26128
East Asian (EAS)
AF:
0.0623
AC:
2475
AN:
39696
South Asian (SAS)
AF:
0.0923
AC:
7956
AN:
86160
European-Finnish (FIN)
AF:
0.0361
AC:
1927
AN:
53388
Middle Eastern (MID)
AF:
0.0737
AC:
326
AN:
4422
European-Non Finnish (NFE)
AF:
0.0145
AC:
16144
AN:
1111940
Other (OTH)
AF:
0.0477
AC:
2874
AN:
60244
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
Heterozygous variant carriers
0
2617
5234
7851
10468
13085
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
844
1688
2532
3376
4220
<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:
0.105
AC:
15937
AN:
152308
Hom.:
1987
Cov.:
33
AF XY:
0.105
AC XY:
7823
AN XY:
74482
show subpopulations
African (AFR)
AF:
0.298
AC:
12388
AN:
41536
American (AMR)
AF:
0.0577
AC:
883
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.0510
AC:
177
AN:
3472
East Asian (EAS)
AF:
0.0493
AC:
255
AN:
5174
South Asian (SAS)
AF:
0.0975
AC:
471
AN:
4832
European-Finnish (FIN)
AF:
0.0365
AC:
388
AN:
10628
Middle Eastern (MID)
AF:
0.0850
AC:
25
AN:
294
European-Non Finnish (NFE)
AF:
0.0165
AC:
1122
AN:
68042
Other (OTH)
AF:
0.0833
AC:
176
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
608
1216
1824
2432
3040
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
154
308
462
616
770
<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:
0.0378
Hom.:
1160
Bravo
AF:
0.115
TwinsUK
AF:
0.0127
AC:
47
ALSPAC
AF:
0.0163
AC:
63
ESP6500AA
AF:
0.302
AC:
1328
ESP6500EA
AF:
0.0193
AC:
166
ExAC
AF:
0.0584
AC:
7087
Asia WGS
AF:
0.0820
AC:
283
AN:
3478
EpiCase
AF:
0.0199
EpiControl
AF:
0.0212

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:4
Apr 30, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Gln105Lys in Exon 06 of TJP2: This variant is not expected to have clinical sign ificance because it has been identified in 30.0% (1119/3736) of African American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http ://evs.gs.washington.edu/EVS; dbSNP rs41305539). -

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

- -

Nov 15, 2017
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 03, 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
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
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
0.084
BayesDel_addAF
Benign
-0.73
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
12
DANN
Benign
0.49
DEOGEN2
Benign
0.0017
.;.;T;T;.;.;T;.;T;.;.;.;.;.;.;.;.;T
Eigen
Benign
-0.90
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.062
N
LIST_S2
Benign
0.80
T;T;.;T;T;T;.;T;T;T;T;T;T;T;T;T;T;T
MetaRNN
Benign
0.0041
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.6
.;.;.;.;.;.;L;L;L;.;.;.;.;.;.;.;.;.
PhyloP100
1.0
PrimateAI
Benign
0.27
T
PROVEAN
Benign
0.35
.;N;.;N;.;.;.;N;N;.;.;.;N;.;.;N;.;.
REVEL
Benign
0.066
Sift
Benign
1.0
.;T;.;T;.;.;.;T;T;.;.;.;T;.;.;T;.;.
Sift4G
Benign
0.98
.;T;T;T;.;.;.;T;T;.;.;.;T;.;.;T;.;.
Polyphen
0.0010
.;.;.;.;.;.;B;B;B;.;.;.;.;.;.;.;.;.
Vest4
0.080, 0.078, 0.083, 0.13, 0.12
MPC
0.25
ClinPred
0.0022
T
GERP RS
2.9
Varity_R
0.063
gMVP
0.39
Mutation Taster
=99/1
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs41305539; hg19: chr9-71835842; COSMIC: COSV55265396; COSMIC: COSV55265396; API