chr15-50993510-C-CTA

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_007347.5(AP4E1):​c.2234_2235dup​(p.Thr746Ter) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)

Consequence

AP4E1
NM_007347.5 frameshift

Scores

Not classified

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 0.187
Variant links:
Genes affected
AP4E1 (HGNC:573): (adaptor related protein complex 4 subunit epsilon 1) This gene encodes a member of the adaptor complexes large subunit protein family. These proteins are components of the heterotetrameric adaptor protein complexes, which play important roles in the secretory and endocytic pathways by mediating vesicle formation and sorting of integral membrane proteins. The encoded protein is a large subunit of adaptor protein complex-4, which is associated with both clathrin- and nonclathrin-coated vesicles. Disruption of this gene may be associated with cerebral palsy. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 15-50993510-C-CTA is Pathogenic according to our data. Variant chr15-50993510-C-CTA is described in ClinVar as [Likely_pathogenic]. Clinvar id is 548459.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AP4E1NM_007347.5 linkuse as main transcriptc.2234_2235dup p.Thr746Ter frameshift_variant 17/21 ENST00000261842.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AP4E1ENST00000261842.10 linkuse as main transcriptc.2234_2235dup p.Thr746Ter frameshift_variant 17/211 NM_007347.5 P1Q9UPM8-1
AP4E1ENST00000560508.1 linkuse as main transcriptc.2009_2010dup p.Thr671Ter frameshift_variant 17/211 Q9UPM8-2
AP4E1ENST00000558439.5 linkuse as main transcriptc.*1358_*1359dup 3_prime_UTR_variant, NMD_transcript_variant 17/211
AP4E1ENST00000561393.5 linkuse as main transcriptc.*1278_*1279dup 3_prime_UTR_variant, NMD_transcript_variant 16/201

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Stuttering, familial persistent, 1 Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingGenomic Research Center, Shahid Beheshti University of Medical SciencesMar 05, 2018- -

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: rs1555462184; hg19: chr15-51285707; API