chr11-134069085-T-G

Variant summary

Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PVS1PS1_ModeratePM2PP5

The NM_032801.5(JAM3):ā€‹c.2T>Gā€‹(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,458,514 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

JAM3
NM_032801.5 start_lost

Scores

4
7
5

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 1.37
Variant links:
Genes affected
JAM3 (HGNC:15532): (junctional adhesion molecule 3) Tight junctions represent one mode of cell-to-cell adhesion in epithelial or endothelial cell sheets, forming continuous seals around cells and serving as a physical barrier to prevent solutes and water from passing freely through the paracellular space. The protein encoded by this immunoglobulin superfamily gene member is localized in the tight junctions between high endothelial cells. Unlike other proteins in this family, the this protein is unable to adhere to leukocyte cell lines and only forms weak homotypic interactions. The encoded protein is a member of the junctional adhesion molecule protein family and acts as a receptor for another member of this family. A mutation in an intron of this gene is associated with hemorrhagic destruction of the brain, subependymal calcification, and congenital cataracts. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Apr 2011]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 13 ACMG points.

PVS1
Start lost variant, no new inframe start found.
PS1
Another start lost variant in NM_032801.5 (JAM3) was described as [Likely_pathogenic] in ClinVar as 931312
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 11-134069085-T-G is Pathogenic according to our data. Variant chr11-134069085-T-G is described in ClinVar as [Pathogenic]. Clinvar id is 41883.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr11-134069085-T-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
JAM3NM_032801.5 linkuse as main transcriptc.2T>G p.Met1? start_lost 1/9 ENST00000299106.9
JAM3NM_001205329.2 linkuse as main transcriptc.2T>G p.Met1? start_lost 1/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
JAM3ENST00000299106.9 linkuse as main transcriptc.2T>G p.Met1? start_lost 1/91 NM_032801.5 P1Q9BX67-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000418
AC:
1
AN:
239108
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
131198
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000331
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1458514
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
725662
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000828
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Porencephaly-microcephaly-bilateral congenital cataract syndrome Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMar 01, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.51
D
BayesDel_noAF
Pathogenic
0.36
CADD
Uncertain
24
DANN
Benign
0.95
DEOGEN2
Benign
0.11
T;T;.
Eigen
Uncertain
0.27
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Pathogenic
1.0
D
MetaRNN
Pathogenic
0.85
D;D;D
MetaSVM
Benign
-0.33
T
MutationTaster
Benign
1.0
D;D;D;D
PROVEAN
Benign
-0.20
N;N;N
REVEL
Uncertain
0.55
Sift
Uncertain
0.010
D;D;D
Sift4G
Uncertain
0.011
D;D;D
Polyphen
0.99
D;.;.
Vest4
0.98
MutPred
0.61
Gain of methylation at M1 (P = 0.0053);Gain of methylation at M1 (P = 0.0053);Gain of methylation at M1 (P = 0.0053);
MVP
0.88
ClinPred
0.99
D
GERP RS
5.2
Varity_R
0.86
gMVP
0.87

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs397514678; hg19: chr11-133938980; API