Genetic Variant AP5Z1:p.Arg750Gly (chr7-4791209-C-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_014855.3(AP5Z1):c.2248C>G(p.Arg750Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R750W) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Consequence

AP5Z1
NM_014855.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.71

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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.854

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
AP5Z1	NM_014855.3	MANE Select	c.2248C>G	p.Arg750Gly	missense	Exon 17 of 17	NP_055670.1
AP5Z1	NM_001364858.1		c.1780C>G	p.Arg594Gly	missense	Exon 16 of 16	NP_001351787.1
AP5Z1	NR_157345.1		n.2379C>G		non_coding_transcript_exon	Exon 17 of 17

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
AP5Z1	ENST00000649063.2	MANE Select	c.2248C>G	p.Arg750Gly	missense	Exon 17 of 17	ENSP00000497815.1
AP5Z1	ENST00000865634.1		c.2323C>G	p.Arg775Gly	missense	Exon 18 of 18	ENSP00000535693.1
AP5Z1	ENST00000865636.1		c.2317C>G	p.Arg773Gly	missense	Exon 17 of 17	ENSP00000535695.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.73

BayesDel_addAF

Pathogenic

0.33

BayesDel_noAF

Pathogenic

0.23

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.48

Eigen

Uncertain

0.47

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.85

M_CAP

Pathogenic

0.37

MetaRNN

Pathogenic

0.85

MetaSVM

Uncertain

0.16

MutationAssessor

Pathogenic

2.9

PhyloP100

1.7

PrimateAI

Benign

0.46

PROVEAN

Pathogenic

-6.0

REVEL

Uncertain

0.62

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.73

MutPred

0.67

Loss of helix (P = 0.0444)

MVP

0.30

ClinPred

0.98

GERP RS

3.1

Varity_R

0.64

gMVP

0.78

Mutation Taster

=50/50

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over