Genetic Variant AP5Z1:p.Ala283Ala (chr7-4784966-C-T) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS1

The NM_014855.3(AP5Z1):c.849C>T(p.Ala283Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000387 in 1,612,050 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.00058 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00037 ( 0 hom. )

Consequence

AP5Z1
NM_014855.3 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:4

Conservation

PhyloP100: 0.816

Publications

2 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: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp

AP5Z1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.64).

BP6

Variant 7-4784966-C-T is Benign according to our data. Variant chr7-4784966-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 240944.

BP7

Synonymous conserved (PhyloP=0.816 with no splicing effect.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000584 (89/152340) while in subpopulation AMR AF = 0.00242 (37/15308). AF 95% confidence interval is 0.0018. There are 0 homozygotes in GnomAd4. There are 41 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AP5Z1	NM_014855.3	MANE Select	c.849C>T	p.Ala283Ala	synonymous	Exon 7 of 17	NP_055670.1	O43299-1
AP5Z1	NM_001364858.1		c.381C>T	p.Ala127Ala	synonymous	Exon 6 of 16	NP_001351787.1
AP5Z1	NR_157345.1		n.942C>T		non_coding_transcript_exon	Exon 7 of 17

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AP5Z1	ENST00000649063.2	MANE Select	c.849C>T	p.Ala283Ala	synonymous	Exon 7 of 17	ENSP00000497815.1	O43299-1
AP5Z1	ENST00000865634.1		c.849C>T	p.Ala283Ala	synonymous	Exon 7 of 18	ENSP00000535693.1
AP5Z1	ENST00000865636.1		c.849C>T	p.Ala283Ala	synonymous	Exon 7 of 17	ENSP00000535695.1

Frequencies

GnomAD3 genomes

AF:

0.000585

AC:

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00242

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:

0.000617

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.000329

AC:

AN:

243424

AF XY:

0.000375

show subpopulations

Gnomad AFR exome

AF:

0.000137

Gnomad AMR exome

AF:

0.000437

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000532

Gnomad OTH exome

AF:

0.000505

GnomAD4 exome

AF:

0.000367

AC:

535

AN:

1459710

Hom.:

Cov.:

AF XY:

0.000361

AC XY:

262

AN XY:

726086

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33474

American (AMR)

AF:

0.000470

AC:

AN:

44638

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26090

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39668

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86184

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52202

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.000431

AC:

479

AN:

1111398

Other (OTH)

AF:

0.000481

AC:

AN:

60294

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

103

138

172

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

110

<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:

0.000584

AC:

AN:

152340

Hom.:

Cov.:

AF XY:

0.000550

AC XY:

AN XY:

74492

show subpopulations

African (AFR)

AF:

0.000144

AC:

AN:

41580

American (AMR)

AF:

0.00242

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000617

AC:

AN:

68030

Other (OTH)

AF:

0.00189

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

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:

0.000427

Hom.:

Bravo

AF:

0.000608

EpiCase

AF:

0.000873

EpiControl

AF:

0.000356

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary spastic paraplegia 48 (2)

AP5Z1-related disorder (1)

Hereditary spastic paraplegia (1)

not provided (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.64

CADD

Benign

7.5

(source)

DANN

Benign

0.82

PhyloP100

0.82

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=96/4

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over