Variant 15-50908824-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_007347.5(AP4E1):c.46T>C(p.Phe16Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000138 in 1,454,384 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

AP4E1
NM_007347.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.83

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]

AP4E1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.083903044).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
AP4E1	NM_007347.5 linkuse as main transcript	c.46T>C	p.Phe16Leu	missense_variant	1/21	ENST00000261842.10	NP_031373.2
AP4E1	NM_001252127.2 linkuse as main transcript	c.-203T>C		5_prime_UTR_variant	1/21		NP_001239056.1
AP4E1	XM_005254264.5 linkuse as main transcript	c.-76+181T>C		intron_variant			XP_005254321.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
AP4E1	ENST00000261842.10 linkuse as main transcript	c.46T>C	p.Phe16Leu	missense_variant	1/21	1	NM_007347.5	ENSP00000261842	P1	Q9UPM8-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000131

AC:

AN:

228664

Hom.:

AF XY:

0.0000159

AC XY:

AN XY:

125568

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000301

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000200

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000138

AC:

AN:

1454384

Hom.:

Cov.:

AF XY:

0.0000194

AC XY:

AN XY:

722958

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000455

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000162

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000166

AC:

Asia WGS

AF:

0.00404

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Spastic paraplegia

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 05, 2022

This sequence change replaces phenylalanine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 16 of the AP4E1 protein (p.Phe16Leu). This variant is present in population databases (rs763655101, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with AP4E1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.50

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.48

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.043

Eigen

Benign

-0.38

Eigen_PC

Benign

-0.15

FATHMM_MKL

Benign

0.67

LIST_S2

Benign

0.68

M_CAP

Benign

0.0089

MetaRNN

Benign

0.084

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.34

MutationTaster

Benign

0.97

D;D

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-0.31

REVEL

Benign

0.088

Sift

Benign

0.63

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.23

MutPred

0.37

Gain of helix (P = 0.0199);

MVP

0.11

MPC

0.12

ClinPred

0.21

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.16

gMVP

0.18

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over