Genetic Variant AK8:p.Met405Ile (chr9-132725913-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_152572.3(AK8):c.1215G>C(p.Met405Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000683 in 1,611,298 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

AK8
NM_152572.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.570

Publications

1 publications found

Variant links:

Genes affected

AK8 (HGNC:26526): (adenylate kinase 8) Enables AMP binding activity and nucleobase-containing compound kinase activity. Involved in nucleoside diphosphate phosphorylation and nucleoside triphosphate biosynthetic process. Located in 9+2 motile cilium. [provided by Alliance of Genome Resources, Apr 2022]

AK8 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.070834726).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AK8	NM_152572.3 link	c.1215G>C	p.Met405Ile	missense_variant	Exon 13 of 13	ENST00000298545.4	NP_689785.1	Q96MA6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
AK8	ENST00000298545.4 link	c.1215G>C	p.Met405Ile	missense_variant	Exon 13 of 13	1	NM_152572.3	ENSP00000298545.3	Q96MA6-1
AK8	ENST00000467161.1 link	n.158G>C		non_coding_transcript_exon_variant	Exon 2 of 2	2
AK8	ENST00000476719.1 link	n.1652G>C		non_coding_transcript_exon_variant	Exon 12 of 12	5
AK8	ENST00000477396.5 link	n.2130G>C		non_coding_transcript_exon_variant	Exon 15 of 15	2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152114

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD2 exomes

AF:

0.0000403

AC:

AN:

248240

AF XY:

0.0000224

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000292

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000617

AC:

AN:

1459184

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

725616

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33432

American (AMR)

AF:

0.000202

AC:

AN:

44492

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26086

East Asian (EAS)

AF:

0.00

AC:

AN:

39664

South Asian (SAS)

AF:

0.00

AC:

AN:

85600

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53366

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4782

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111520

Other (OTH)

AF:

0.00

AC:

AN:

60242

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.581

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152114

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74290

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41428

American (AMR)

AF:

0.000131

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68000

Other (OTH)

AF:

0.00

AC:

AN:

2090

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:

0.00

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 19, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1215G>C (p.M405I) alteration is located in exon 13 (coding exon 13) of the AK8 gene. This alteration results from a G to C substitution at nucleotide position 1215, causing the methionine (M) at amino acid position 405 to be replaced by an isoleucine (I). 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

Uncertain

0.40

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.36

CADD

Benign

(source)

DANN

Benign

0.87

DEOGEN2

Benign

0.11

Eigen

Benign

-0.56

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.65

LIST_S2

Benign

0.68

M_CAP

Benign

0.012

MetaRNN

Benign

0.071

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.47

PhyloP100

0.57

PrimateAI

Benign

0.42

PROVEAN

Benign

-0.55

REVEL

Benign

0.043

Sift

Benign

0.48

Sift4G

Benign

0.74

Polyphen

0.0040

Vest4

0.11

MutPred

0.37

Loss of ubiquitination at K407 (P = 0.0578);

MVP

0.39

MPC

0.12

ClinPred

0.086

GERP RS

3.2

Varity_R

0.058

gMVP

0.29

Mutation Taster

=97/3

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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9-132725913-C-G

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