dbSNP rs6675743: AK5:c.1621-3T>A (chr1-77558599-T-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_174858.3(AK5):c.1621-3T>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 31)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

AK5
NM_174858.3 splice_region, intron

Scores

Splicing: ADA: 0.01558

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.02

Publications

12 publications found

Variant links:

Genes affected

AK5 (HGNC:365): (adenylate kinase 5) This gene encodes a member of the adenylate kinase family, which is involved in regulating the adenine nucleotide composition within a cell by catalyzing the reversible transfer of phosphate groups among adenine nucleotides. This member is related to the UMP/CMP kinase of several species. It is located in the cytosol and expressed exclusively in brain. Alternatively spliced transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

AK5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.79).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AK5	NM_174858.3 link	c.1621-3T>A		splice_region_variant, intron_variant	Intron 13 of 13	ENST00000354567.7	NP_777283.1	Q9Y6K8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AK5	ENST00000354567.7 link	c.1621-3T>A		splice_region_variant, intron_variant	Intron 13 of 13	1	NM_174858.3	ENSP00000346577.2		Q9Y6K8-1

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

151926

Hom.:

Cov.:

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

7.11e-7

AC:

AN:

1407394

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

703236

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

32622

American (AMR)

AF:

0.00

AC:

AN:

44188

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25806

East Asian (EAS)

AF:

0.00

AC:

AN:

39406

South Asian (SAS)

AF:

0.00

AC:

AN:

84220

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53362

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5340

European-Non Finnish (NFE)

AF:

9.40e-7

AC:

AN:

1063842

Other (OTH)

AF:

0.00

AC:

AN:

58608

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

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

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

151926

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74168

African (AFR)

AF:

0.00

AC:

AN:

41304

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3462

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:

10542

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2092

Alfa

AF:

0.00

Hom.:

41954

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.79

CADD

Benign

0.14

(source)

DANN

Benign

0.73

PhyloP100

-2.0

Mutation Taster

=73/27

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.016

dbscSNV1_RF

Benign

0.31

SpliceAI score (max)

0.61

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.61

Position offset: 3

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over