chr19-1912141-G-GCCGGGAGC

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_StrongPM2PP5

The NM_138422.4(ADAT3):​c.99_106dup​(p.Glu36GlyfsTer44) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000705 in 1,560,438 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000071 ( 0 hom. )

Consequence

ADAT3
NM_138422.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 1.38
Variant links:
Genes affected
ADAT3 (HGNC:25151): (adenosine deaminase tRNA specific 3) This gene encodes a subunit of a tRNA-specific adenosine deaminase. This heterodimeric enzyme converts adenosine to inosine in the tRNA anticodon. A mutation in this gene causes a syndrome characterized by intellectual disability and strabismus. This gene shares its 5' exon with the overlapping gene, secretory carrier membrane protein 4 (Gene ID: 113178). [provided by RefSeq, Jul 2016]
SCAMP4 (HGNC:30385): (secretory carrier membrane protein 4) Secretory carrier membrane proteins (SCAMPs) are widely distributed integral membrane proteins implicated in membrane trafficking. Most SCAMPs (e.g., SCAMP1; MIM 606911) have N-terminal cytoplasmic NPF (arg-pro-phe) repeats, 4 central transmembrane regions, and a short C-terminal cytoplasmic tail. These SCAMPs likely have a role in endocytosis that is mediated by their NPF repeats. Other SCAMPs, such as SCAMP4, lack the NPF repeats and are therefore unlikely to function in endocytosis (summary by Fernandez-Chacon and Sudhof, 2000 [PubMed 11050114]).[supplied by OMIM, Feb 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 5 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 19-1912141-G-GCCGGGAGC is Pathogenic according to our data. Variant chr19-1912141-G-GCCGGGAGC is described in ClinVar as [Pathogenic]. Clinvar id is 549839.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADAT3NM_138422.4 linkuse as main transcriptc.99_106dup p.Glu36GlyfsTer44 frameshift_variant 2/2 ENST00000329478.4
SCAMP4NM_079834.4 linkuse as main transcriptc.-41-2833_-41-2826dup intron_variant ENST00000316097.13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADAT3ENST00000329478.4 linkuse as main transcriptc.99_106dup p.Glu36GlyfsTer44 frameshift_variant 2/21 NM_138422.4 P1
SCAMP4ENST00000316097.13 linkuse as main transcriptc.-41-2833_-41-2826dup intron_variant 1 NM_079834.4 P1Q969E2-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152260
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
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
GnomAD3 exomes
AF:
0.0000125
AC:
2
AN:
160024
Hom.:
0
AF XY:
0.0000227
AC XY:
2
AN XY:
88168
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:
0.0000426
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000149
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000710
AC:
10
AN:
1408178
Hom.:
0
Cov.:
30
AF XY:
0.0000129
AC XY:
9
AN XY:
697112
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000108
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000375
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000183
Gnomad4 OTH exome
AF:
0.0000171
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152260
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74382
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

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

Submissions by phenotype

Intellectual disability-strabismus syndrome Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMSep 10, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs746859902; hg19: chr19-1912140; API