rs201196622

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_014855.3(AP5Z1):​c.999C>T​(p.Asp333Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00103 in 1,612,078 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00076 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0011 ( 3 hom. )

Consequence

AP5Z1
NM_014855.3 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: -0.256

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • hereditary spastic paraplegia
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • hereditary spastic paraplegia 48
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 7-4785551-C-T is Benign according to our data. Variant chr7-4785551-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 538864.
BP7
Synonymous conserved (PhyloP=-0.256 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000762 (116/152324) while in subpopulation AMR AF = 0.00131 (20/15314). AF 95% confidence interval is 0.000981. There are 0 homozygotes in GnomAd4. There are 57 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AP5Z1NM_014855.3 linkc.999C>T p.Asp333Asp synonymous_variant Exon 9 of 17 ENST00000649063.2 NP_055670.1 O43299-1
AP5Z1NM_001364858.1 linkc.531C>T p.Asp177Asp synonymous_variant Exon 8 of 16 NP_001351787.1
AP5Z1XM_047421098.1 linkc.663C>T p.Asp221Asp synonymous_variant Exon 7 of 15 XP_047277054.1
AP5Z1NR_157345.1 linkn.1092C>T non_coding_transcript_exon_variant Exon 9 of 17

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AP5Z1ENST00000649063.2 linkc.999C>T p.Asp333Asp synonymous_variant Exon 9 of 17 NM_014855.3 ENSP00000497815.1 O43299-1

Frequencies

GnomAD3 genomes
AF:
0.000762
AC:
116
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000217
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000565
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00119
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000690
AC:
168
AN:
243578
AF XY:
0.000632
show subpopulations
Gnomad AFR exome
AF:
0.0000672
Gnomad AMR exome
AF:
0.000469
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000770
Gnomad NFE exome
AF:
0.00118
Gnomad OTH exome
AF:
0.000842
GnomAD4 exome
AF:
0.00106
AC:
1550
AN:
1459754
Hom.:
3
Cov.:
33
AF XY:
0.00103
AC XY:
751
AN XY:
726072
show subpopulations
African (AFR)
AF:
0.0000897
AC:
3
AN:
33454
American (AMR)
AF:
0.000359
AC:
16
AN:
44524
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26074
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39674
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
85970
European-Finnish (FIN)
AF:
0.00110
AC:
58
AN:
52578
Middle Eastern (MID)
AF:
0.000175
AC:
1
AN:
5724
European-Non Finnish (NFE)
AF:
0.00126
AC:
1404
AN:
1111456
Other (OTH)
AF:
0.00109
AC:
66
AN:
60300
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
105
211
316
422
527
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
50
100
150
200
250
<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:
0.000762
AC:
116
AN:
152324
Hom.:
0
Cov.:
33
AF XY:
0.000765
AC XY:
57
AN XY:
74482
show subpopulations
African (AFR)
AF:
0.000216
AC:
9
AN:
41582
American (AMR)
AF:
0.00131
AC:
20
AN:
15314
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.000565
AC:
6
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00119
AC:
81
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.516
Heterozygous variant carriers
0
6
12
17
23
29
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000982
Hom.:
0
Bravo
AF:
0.000888
EpiCase
AF:
0.00142
EpiControl
AF:
0.00101

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 48 Uncertain:1Benign:1
Jan 31, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

AP5Z1-related disorder Benign:1
Sep 12, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not specified Benign:1
Jun 24, 2024
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary spastic paraplegia Benign:1
Sep 20, 2021
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
May 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

AP5Z1: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
CADD
Benign
3.6
DANN
Benign
0.92
PhyloP100
-0.26
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=99/1
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs201196622; hg19: chr7-4825182; COSMIC: COSV100803991; COSMIC: COSV100803991; API