7-4783328-G-A

Position:

chr7-4783328-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_014855.3(AP5Z1):c.379G>A(p.Glu127Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00191 in 1,609,808 control chromosomes in the GnomAD database, including 57 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E127Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.010 ( 32 hom., cov: 33)

Exomes 𝑓: 0.0010 ( 25 hom. )

Consequence

AP5Z1
NM_014855.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.676

Variant links:

Genes affected

AP5Z1 (HGNC:22197): (adaptor related protein complex 5 subunit zeta 1) This gene was identified by genome-wide screen for genes involved in homologous recombination DNA double-strand break repair (HR-DSBR). The encoded protein was found in a complex with other proteins that have a role in HR-DSBR. Knockdown of this gene reduced homologous recombination, and mutations in this gene were found in patients with spastic paraplegia. It was concluded that this gene likely encodes a helicase (PMID:20613862). [provided by RefSeq, Jan 2011]

AP5Z1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0026765168).

BP6

Variant 7-4783328-G-A is Benign according to our data. Variant chr7-4783328-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 360308.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-4783328-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0103 (1576/152312) while in subpopulation AFR AF= 0.0358 (1490/41576). AF 95% confidence interval is 0.0343. There are 32 homozygotes in gnomad4. There are 745 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 32 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
AP5Z1	NM_014855.3 linkuse as main transcript	c.379G>A	p.Glu127Lys	missense_variant	4/17	ENST00000649063.2
AP5Z1	XM_047421098.1 linkuse as main transcript	c.43G>A	p.Glu15Lys	missense_variant	2/15
AP5Z1	NM_001364858.1 linkuse as main transcript	c.-90G>A		5_prime_UTR_variant	3/16
AP5Z1	NR_157345.1 linkuse as main transcript	n.472G>A		non_coding_transcript_exon_variant	4/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AP5Z1	ENST00000649063.2 linkuse as main transcript	c.379G>A	p.Glu127Lys	missense_variant	4/17		NM_014855.3	P1	O43299-1

Frequencies

GnomAD3 genomes

AF:

0.0103

AC:

1574

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0359

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00412

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00813

GnomAD3 exomes

AF:

0.00242

AC:

585

AN:

241272

Hom.:

AF XY:

0.00180

AC XY:

237

AN XY:

131454

show subpopulations

Gnomad AFR exome

AF:

0.0349

Gnomad AMR exome

AF:

0.00175

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000333

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000737

Gnomad OTH exome

AF:

0.00102

GnomAD4 exome

AF:

0.00103

AC:

1505

AN:

1457496

Hom.:

Cov.:

AF XY:

0.000891

AC XY:

646

AN XY:

724662

show subpopulations

Gnomad4 AFR exome

AF:

0.0363

Gnomad4 AMR exome

AF:

0.00208

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000700

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000559

Gnomad4 OTH exome

AF:

0.00214

GnomAD4 genome

AF:

0.0103

AC:

1576

AN:

152312

Hom.:

Cov.:

AF XY:

0.0100

AC XY:

745

AN XY:

74472

show subpopulations

Gnomad4 AFR

AF:

0.0358

Gnomad4 AMR

AF:

0.00412

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00804

Alfa

AF:

0.00191

Hom.:

Bravo

AF:

0.0122

ESP6500AA

AF:

0.0303

AC:

124

ESP6500EA

AF:

0.000119

AC:

ExAC

AF:

0.00261

AC:

316

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 48

Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Sep 22, 2022	See Variant Classification Assertion Criteria. -
Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Athena Diagnostics

Dec 16, 2016

- -

Hereditary spastic paraplegia

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Jan 01, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.58

CADD

Benign

4.1

DANN

Benign

0.58

DEOGEN2

Benign

0.013

T;T

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.17

LIST_S2

Benign

0.62

.;T

MetaRNN

Benign

0.0027

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.8

L;L

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.43

N;.

REVEL

Benign

0.14

Sift

Benign

0.62

T;.

Sift4G

Benign

0.67

T;.

Polyphen

0.12

B;B

Vest4

0.15

MVP

0.030

ClinPred

0.0025

GERP RS

-2.4

Varity_R

0.034

gMVP

0.088

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