Genetic Variant AP5Z1:p.Leu476Leu (chr7-4787750-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_014855.3(AP5Z1):c.1428G>A(p.Leu476Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000648 in 1,542,866 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000065 ( 0 hom. )

Consequence

AP5Z1
NM_014855.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.81

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

AP5Z1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

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

BP6

Variant 7-4787750-G-A is Benign according to our data. Variant chr7-4787750-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 538865.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=1.81 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AP5Z1	NM_014855.3 link	c.1428G>A	p.Leu476Leu	synonymous_variant	Exon 11 of 17	ENST00000649063.2	NP_055670.1	O43299-1
AP5Z1	NM_001364858.1 link	c.960G>A	p.Leu320Leu	synonymous_variant	Exon 10 of 16		NP_001351787.1
AP5Z1	XM_047421098.1 link	c.1092G>A	p.Leu364Leu	synonymous_variant	Exon 9 of 15		XP_047277054.1
AP5Z1	NR_157345.1 link	n.1559G>A		non_coding_transcript_exon_variant	Exon 11 of 17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AP5Z1	ENST00000649063.2 link	c.1428G>A	p.Leu476Leu	synonymous_variant	Exon 11 of 17		NM_014855.3	ENSP00000497815.1		O43299-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152094

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000647

AC:

AN:

1390772

Hom.:

Cov.:

AF XY:

0.00000437

AC XY:

AN XY:

686572

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31716

American (AMR)

AF:

0.00

AC:

AN:

36234

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25152

East Asian (EAS)

AF:

0.00

AC:

AN:

35922

South Asian (SAS)

AF:

0.00

AC:

AN:

79294

European-Finnish (FIN)

AF:

0.00

AC:

AN:

39546

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5048

European-Non Finnish (NFE)

AF:

0.00000833

AC:

AN:

1079872

Other (OTH)

AF:

0.00

AC:

AN:

57988

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152094

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74286

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41414

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5162

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68000

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 48

Benign:1

Sep 23, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.64

CADD

Benign

1.9

(source)

DANN

Benign

0.69

PhyloP100

1.8

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over