Genetic Variant AOPEP:p.Lys579Arg (chr9-94955251-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001193329.3(AOPEP):c.1736A>G(p.Lys579Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000744 in 1,613,270 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

AOPEP
NM_001193329.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.13

Publications

1 publications found

Variant links:

Genes affected

AOPEP (HGNC:1361): (aminopeptidase O (putative)) This gene encodes a member of the M1 zinc aminopeptidase family. The encoded protein is a zinc-dependent metallopeptidase that catalyzes the removal of an amino acid from the amino terminus of a protein or peptide. This protein may play a role in the generation of angiotensin IV. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2010]

AOPEP links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AOPEP	NM_001193329.3 link	c.1736A>G	p.Lys579Arg	missense_variant	Exon 8 of 17	ENST00000375315.8	NP_001180258.1	Q8N6M6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
AOPEP	ENST00000375315.8 link	c.1736A>G	p.Lys579Arg	missense_variant	Exon 8 of 17	1	NM_001193329.3	ENSP00000364464.2	Q8N6M6-1
AOPEP	ENST00000297979.9 link	c.1439A>G	p.Lys480Arg	missense_variant	Exon 6 of 15	1		ENSP00000297979.5	Q8N6M6-2
AOPEP	ENST00000462125.5 link	n.402A>G		non_coding_transcript_exon_variant	Exon 3 of 10	3
AOPEP	ENST00000479161.5 link	n.458A>G		non_coding_transcript_exon_variant	Exon 4 of 11	5

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152242

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1461028

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

726814

show subpopulations

African (AFR)

AF:

0.0000896

AC:

AN:

33466

American (AMR)

AF:

0.00

AC:

AN:

44536

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86106

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53358

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111622

Other (OTH)

AF:

0.0000497

AC:

AN:

60364

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

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152242

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74380

show subpopulations

African (AFR)

AF:

0.000145

AC:

AN:

41470

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5202

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68040

Other (OTH)

AF:

0.00

AC:

AN:

2094

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

Alfa

AF:

0.000132

Hom.:

Bravo

AF:

0.0000453

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Aug 09, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1736A>G (p.K579R) alteration is located in exon 7 (coding exon 7) of the C9orf3 gene. This alteration results from a A to G substitution at nucleotide position 1736, causing the lysine (K) at amino acid position 579 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Benign

-0.087

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

(source)

DANN

Uncertain

1.0

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.93

D;D;D;D

M_CAP

Benign

0.024

MetaRNN

Uncertain

0.46

T;T;T;T

MetaSVM

Benign

-1.2

PhyloP100

6.1

PROVEAN

Benign

-2.3

N;N;N;N

REVEL

Benign

0.25

Sift

Benign

0.045

D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D

Vest4

0.70

MVP

0.44

MPC

0.76

ClinPred

0.98

GERP RS

5.0

gMVP

0.30

Mutation Taster

=82/18

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

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9-94955251-A-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over