rs377507553

Variant summary

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

The NM_014855.3(AP5Z1):​c.780C>A​(p.Thr260Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00078 in 1,597,018 control chromosomes in the GnomAD database, including 7 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 0.00067 ( 2 hom., cov: 33)
Exomes 𝑓: 0.00079 ( 5 hom. )

Consequence

AP5Z1
NM_014855.3 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.102

Publications

1 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=-0.69).
BP6
Variant 7-4784361-C-A is Benign according to our data. Variant chr7-4784361-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 360318.
BP7
Synonymous conserved (PhyloP=-0.102 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00067 (102/152202) while in subpopulation SAS AF = 0.00664 (32/4822). AF 95% confidence interval is 0.00483. There are 2 homozygotes in GnomAd4. There are 60 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014855.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AP5Z1
NM_014855.3
MANE Select
c.780C>Ap.Thr260Thr
synonymous
Exon 6 of 17NP_055670.1
AP5Z1
NM_001364858.1
c.312C>Ap.Thr104Thr
synonymous
Exon 5 of 16NP_001351787.1
AP5Z1
NR_157345.1
n.873C>A
non_coding_transcript_exon
Exon 6 of 17

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AP5Z1
ENST00000649063.2
MANE Select
c.780C>Ap.Thr260Thr
synonymous
Exon 6 of 17ENSP00000497815.1
AP5Z1
ENST00000477680.6
TSL:2
n.538C>A
non_coding_transcript_exon
Exon 4 of 14
AP5Z1
ENST00000491375.1
TSL:5
n.635C>A
non_coding_transcript_exon
Exon 2 of 3

Frequencies

GnomAD3 genomes
AF:
0.000671
AC:
102
AN:
152084
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00922
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00663
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000500
Gnomad OTH
AF:
0.00144
GnomAD2 exomes
AF:
0.00167
AC:
358
AN:
214424
AF XY:
0.00213
show subpopulations
Gnomad AFR exome
AF:
0.0000845
Gnomad AMR exome
AF:
0.000191
Gnomad ASJ exome
AF:
0.00822
Gnomad EAS exome
AF:
0.0000619
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000323
Gnomad OTH exome
AF:
0.00129
GnomAD4 exome
AF:
0.000792
AC:
1144
AN:
1444816
Hom.:
5
Cov.:
42
AF XY:
0.00104
AC XY:
744
AN XY:
717548
show subpopulations
African (AFR)
AF:
0.0000300
AC:
1
AN:
33298
American (AMR)
AF:
0.000212
AC:
9
AN:
42378
Ashkenazi Jewish (ASJ)
AF:
0.00785
AC:
203
AN:
25846
East Asian (EAS)
AF:
0.0000255
AC:
1
AN:
39140
South Asian (SAS)
AF:
0.00769
AC:
646
AN:
84046
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48690
Middle Eastern (MID)
AF:
0.00210
AC:
12
AN:
5710
European-Non Finnish (NFE)
AF:
0.000186
AC:
206
AN:
1105896
Other (OTH)
AF:
0.00110
AC:
66
AN:
59812
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
56
112
169
225
281
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.000670
AC:
102
AN:
152202
Hom.:
2
Cov.:
33
AF XY:
0.000806
AC XY:
60
AN XY:
74412
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41536
American (AMR)
AF:
0.00
AC:
0
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00922
AC:
32
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5152
South Asian (SAS)
AF:
0.00664
AC:
32
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000500
AC:
34
AN:
67992
Other (OTH)
AF:
0.00142
AC:
3
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
4
9
13
18
22
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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:
0.00116
Hom.:
0
Bravo
AF:
0.000423
Asia WGS
AF:
0.00202
AC:
7
AN:
3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
1
Hereditary spastic paraplegia 48 (2)
-
-
2
not provided (2)
-
-
1
Hereditary spastic paraplegia (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.69
CADD
Benign
1.0
DANN
Benign
0.74
PhyloP100
-0.10
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs377507553; hg19: chr7-4823992; API