rs149682827

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_007347.5(AP4E1):c.1105A>C(p.Thr369Pro) variant causes a missense change. The variant allele was found at a frequency of 0.0000235 in 1,613,684 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

AP4E1
NM_007347.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 5.86

Publications

2 publications found

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 Gene-Disease associations (from GenCC):

AP-4 deficiency syndrome
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
hereditary spastic paraplegia 51
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
AP4-related intellectual disability and spastic paraplegia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

AP4E1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.014203429).

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000145 (22/152210) while in subpopulation AFR AF = 0.00053 (22/41524). AF 95% confidence interval is 0.000358. There are 0 homozygotes in GnomAd4. There are 6 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AP4E1	NM_007347.5 link	c.1105A>C	p.Thr369Pro	missense_variant	Exon 10 of 21	ENST00000261842.10	NP_031373.2	Q9UPM8-1B4DM48

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
AP4E1	ENST00000261842.10 link	c.1105A>C	p.Thr369Pro	missense_variant	Exon 10 of 21	1	NM_007347.5	ENSP00000261842.5	Q9UPM8-1
AP4E1	ENST00000560508.1 link	c.880A>C	p.Thr294Pro	missense_variant	Exon 10 of 21	1		ENSP00000452976.1	Q9UPM8-2
AP4E1	ENST00000558439.5 link	n.*227A>C		non_coding_transcript_exon_variant	Exon 10 of 21	1		ENSP00000452712.1	H0YK95
AP4E1	ENST00000561393.5 link	n.*149A>C		non_coding_transcript_exon_variant	Exon 9 of 20	1		ENSP00000452711.1	H0YK94
AP4E1	ENST00000558439.5 link	n.*227A>C		3_prime_UTR_variant	Exon 10 of 21	1		ENSP00000452712.1	H0YK95
AP4E1	ENST00000561393.5 link	n.*149A>C		3_prime_UTR_variant	Exon 9 of 20	1		ENSP00000452711.1	H0YK94

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152092

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000531

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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

GnomAD2 exomes

AF:

0.0000518

AC:

AN:

251030

AF XY:

0.0000295

show subpopulations

Gnomad AFR exome

AF:

0.000738

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000109

AC:

AN:

1461474

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727060

show subpopulations

African (AFR)

AF:

0.000359

AC:

AN:

33450

American (AMR)

AF:

0.0000224

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39658

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111758

Other (OTH)

AF:

0.0000331

AC:

AN:

60376

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.513

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000145

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74444

show subpopulations

African (AFR)

AF:

0.000530

AC:

AN:

41524

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68002

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.507

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000611

Hom.:

Bravo

AF:

0.000170

ESP6500AA

AF:

0.000683

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Spastic paraplegia

Uncertain:1

May 25, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. 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. ClinVar contains an entry for this variant (Variation ID: 210197). This variant has not been reported in the literature in individuals affected with AP4E1-related conditions. This variant is present in population databases (rs149682827, gnomAD 0.07%). This sequence change replaces threonine, which is neutral and polar, with proline, which is neutral and non-polar, at codon 369 of the AP4E1 protein (p.Thr369Pro). -

not specified

Uncertain:1

May 04, 2015

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary spastic paraplegia

Uncertain:1

Jun 23, 2017

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Benign

0.77

DEOGEN2

Benign

0.053

T;.

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.28

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.74

T;T

M_CAP

Benign

0.0086

MetaRNN

Benign

0.014

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

L;.

PhyloP100

5.9

PrimateAI

Benign

0.35

PROVEAN

Benign

-1.2

N;N

REVEL

Benign

0.17

Sift

Benign

0.21

T;T

Sift4G

Benign

0.14

T;T

Polyphen

0.55

P;.

Vest4

0.31

MVP

0.19

MPC

0.26

ClinPred

0.084

GERP RS

2.4

Varity_R

0.55

gMVP

0.44

Mutation Taster

=88/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.12

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over