Genetic Variant NM_014855.3:c.490A>G (chr7-4783439-A-G) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_014855.3(AP5Z1):c.490A>G(p.Ser164Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000253 in 1,612,644 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00038 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00024 ( 5 hom. )

Consequence

AP5Z1
NM_014855.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.579

Publications

6 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 -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0052919686).

BP6

Variant 7-4783439-A-G is Benign according to our data. Variant chr7-4783439-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 538868.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000381 (58/152140) while in subpopulation EAS AF = 0.0108 (56/5162). AF 95% confidence interval is 0.00858. There are 1 homozygotes in GnomAd4. There are 29 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 5 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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AP5Z1	NM_014855.3	MANE Select	c.490A>G	p.Ser164Gly	missense	Exon 4 of 17	NP_055670.1	O43299-1
AP5Z1	NM_001364858.1		c.22A>G	p.Ser8Gly	missense	Exon 3 of 16	NP_001351787.1
AP5Z1	NR_157345.1		n.583A>G		non_coding_transcript_exon	Exon 4 of 17

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AP5Z1	ENST00000649063.2	MANE Select	c.490A>G	p.Ser164Gly	missense	Exon 4 of 17	ENSP00000497815.1	O43299-1
AP5Z1	ENST00000865634.1		c.490A>G	p.Ser164Gly	missense	Exon 4 of 18	ENSP00000535693.1
AP5Z1	ENST00000865636.1		c.490A>G	p.Ser164Gly	missense	Exon 4 of 17	ENSP00000535695.1

Frequencies

GnomAD3 genomes

AF:

0.000382

AC:

AN:

152022

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:

0.0108

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000887

AC:

220

AN:

248066

AF XY:

0.000741

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0118

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000357

Gnomad OTH exome

AF:

0.000332

GnomAD4 exome

AF:

0.000240

AC:

350

AN:

1460504

Hom.:

Cov.:

AF XY:

0.000211

AC XY:

153

AN XY:

726558

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33466

American (AMR)

AF:

0.0000224

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.00776

AC:

308

AN:

39696

South Asian (SAS)

AF:

0.000104

AC:

AN:

86224

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52684

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5576

European-Non Finnish (NFE)

AF:

0.0000162

AC:

AN:

1111714

Other (OTH)

AF:

0.000232

AC:

AN:

60314

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.462

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.000381

AC:

AN:

152140

Hom.:

Cov.:

AF XY:

0.000390

AC XY:

AN XY:

74372

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41528

American (AMR)

AF:

0.00

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.0108

AC:

AN:

5162

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10582

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67950

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.000717

Hom.:

Bravo

AF:

0.000567

ExAC

AF:

0.000844

AC:

102

Asia WGS

AF:

0.00318

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary spastic paraplegia 48 (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.60

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.033

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.51

FATHMM_MKL

Benign

0.020

LIST_S2

Benign

0.67

MetaRNN

Benign

0.0053

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.5

PhyloP100

0.58

PrimateAI

Benign

0.33

PROVEAN

Benign

-1.6

REVEL

Benign

0.019

Sift

Benign

0.35

Sift4G

Benign

0.19

Polyphen

0.82

Vest4

0.25

MVP

0.040

ClinPred

0.019

GERP RS

2.4

Varity_R

0.035

gMVP

0.21

Mutation Taster

=98/2

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over