rs201478168

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014855.3(AP5Z1):​c.2060C>G​(p.Ser687Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000901 in 1,609,144 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000089 ( 1 hom. )

Consequence

AP5Z1
NM_014855.3 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 2.50
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AP5Z1NM_014855.3 linkc.2060C>G p.Ser687Cys missense_variant Exon 16 of 17 ENST00000649063.2 NP_055670.1 O43299-1
AP5Z1NM_001364858.1 linkc.1592C>G p.Ser531Cys missense_variant Exon 15 of 16 NP_001351787.1
AP5Z1XM_047421098.1 linkc.1724C>G p.Ser575Cys missense_variant Exon 14 of 15 XP_047277054.1
AP5Z1NR_157345.1 linkn.2191C>G non_coding_transcript_exon_variant Exon 16 of 17

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AP5Z1ENST00000649063.2 linkc.2060C>G p.Ser687Cys missense_variant Exon 16 of 17 NM_014855.3 ENSP00000497815.1 O43299-1

Frequencies

GnomAD3 genomes
AF:
0.0000986
AC:
15
AN:
152190
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.000206
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000791
AC:
19
AN:
240350
Hom.:
0
AF XY:
0.0000610
AC XY:
8
AN XY:
131120
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000165
Gnomad OTH exome
AF:
0.000170
GnomAD4 exome
AF:
0.0000892
AC:
130
AN:
1456954
Hom.:
1
Cov.:
32
AF XY:
0.0000745
AC XY:
54
AN XY:
724466
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.000113
Gnomad4 OTH exome
AF:
0.0000664
GnomAD4 genome
AF:
0.0000986
AC:
15
AN:
152190
Hom.:
0
Cov.:
33
AF XY:
0.000108
AC XY:
8
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000206
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000267
Hom.:
0
Bravo
AF:
0.0000642
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000519
AC:
2
ExAC
AF:
0.0000663
AC:
8

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Jul 07, 2022
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Jul 07, 2021
Mayo Clinic Laboratories, Mayo Clinic
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Uncertain:1
Jun 30, 2017
Athena Diagnostics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary spastic paraplegia 48 Uncertain:1
Oct 08, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 687 of the AP5Z1 protein (p.Ser687Cys). This variant is present in population databases (rs201478168, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with AP5Z1-related conditions. ClinVar contains an entry for this variant (Variation ID: 240938). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt AP5Z1 protein function with a negative predictive value of 80%. 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. -

Retinal dystrophy Uncertain:1
Jan 01, 2023
Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.25
T;T
Eigen
Uncertain
0.31
Eigen_PC
Benign
0.18
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.83
.;T
M_CAP
Benign
0.067
D
MetaRNN
Uncertain
0.42
T;T
MetaSVM
Benign
-0.58
T
MutationAssessor
Uncertain
2.6
M;M
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-3.0
D;.
REVEL
Benign
0.18
Sift
Benign
0.049
D;.
Sift4G
Uncertain
0.025
D;.
Polyphen
1.0
D;D
Vest4
0.38
MVP
0.15
ClinPred
0.46
T
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.097
gMVP
0.27

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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.

Other links and lift over

dbSNP: rs201478168; hg19: chr7-4830425; API