rs184683619

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_001625.4(AK2):​c.247A>G​(p.Ile83Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000566 in 1,613,880 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00050 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00057 ( 1 hom. )

Consequence

AK2
NM_001625.4 missense

Scores

1
5
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.59

Publications

3 publications found
Variant links:
Genes affected
AK2 (HGNC:362): (adenylate kinase 2) Adenylate kinases are involved in regulating the adenine nucleotide composition within a cell by catalyzing the reversible transfer of phosphate groups among adenine nucleotides. Three isozymes of adenylate kinase, namely 1, 2, and 3, have been identified in vertebrates; this gene encodes isozyme 2. Expression of these isozymes is tissue-specific and developmentally regulated. Isozyme 2 is localized in the mitochondrial intermembrane space and may play a role in apoptosis. Mutations in this gene are the cause of reticular dysgenesis. Alternate splicing results in multiple transcript variants. Pseudogenes of this gene are found on chromosomes 1 and 2.[provided by RefSeq, Nov 2010]
AK2 Gene-Disease associations (from GenCC):
  • reticular dysgenesis
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.039726168).
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000499 (76/152298) while in subpopulation AMR AF = 0.00105 (16/15296). AF 95% confidence interval is 0.000656. There are 0 homozygotes in GnomAd4. There are 44 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001625.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AK2
NM_001625.4
MANE Select
c.247A>Gp.Ile83Val
missense
Exon 3 of 6NP_001616.1P54819-1
AK2
NM_001319141.3
c.247A>Gp.Ile83Val
missense
Exon 3 of 8NP_001306070.1F8W1A4
AK2
NM_013411.5
c.247A>Gp.Ile83Val
missense
Exon 3 of 7NP_037543.1P54819-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AK2
ENST00000672715.1
MANE Select
c.247A>Gp.Ile83Val
missense
Exon 3 of 6ENSP00000499935.1P54819-1
AK2
ENST00000373449.7
TSL:1
c.247A>Gp.Ile83Val
missense
Exon 3 of 7ENSP00000362548.2P54819-2
AK2
ENST00000354858.11
TSL:1
c.121A>Gp.Ile41Val
missense
Exon 2 of 5ENSP00000346921.7A0A5K1VW67

Frequencies

GnomAD3 genomes
AF:
0.000499
AC:
76
AN:
152180
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000338
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000558
Gnomad OTH
AF:
0.00144
GnomAD2 exomes
AF:
0.000473
AC:
119
AN:
251384
AF XY:
0.000434
show subpopulations
Gnomad AFR exome
AF:
0.000370
Gnomad AMR exome
AF:
0.00110
Gnomad ASJ exome
AF:
0.000496
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000528
Gnomad OTH exome
AF:
0.00163
GnomAD4 exome
AF:
0.000573
AC:
838
AN:
1461582
Hom.:
1
Cov.:
31
AF XY:
0.000542
AC XY:
394
AN XY:
727098
show subpopulations
African (AFR)
AF:
0.000329
AC:
11
AN:
33474
American (AMR)
AF:
0.000850
AC:
38
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.000230
AC:
6
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53416
Middle Eastern (MID)
AF:
0.00104
AC:
6
AN:
5768
European-Non Finnish (NFE)
AF:
0.000667
AC:
741
AN:
1111726
Other (OTH)
AF:
0.000580
AC:
35
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
44
88
131
175
219
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
34
68
102
136
170
<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:
0.000499
AC:
76
AN:
152298
Hom.:
0
Cov.:
31
AF XY:
0.000591
AC XY:
44
AN XY:
74482
show subpopulations
African (AFR)
AF:
0.000337
AC:
14
AN:
41554
American (AMR)
AF:
0.00105
AC:
16
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.000415
AC:
2
AN:
4824
European-Finnish (FIN)
AF:
0.0000942
AC:
1
AN:
10618
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.000559
AC:
38
AN:
68032
Other (OTH)
AF:
0.00142
AC:
3
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
4
8
13
17
21
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000544
Hom.:
0
Bravo
AF:
0.000540
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000698
AC:
6
ExAC
AF:
0.000346
AC:
42
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000763
EpiControl
AF:
0.000474

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Reticular dysgenesis (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.15
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
T
Eigen
Benign
0.036
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.040
T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
0.48
N
PhyloP100
7.6
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-0.86
N
REVEL
Uncertain
0.33
Sift
Benign
0.097
T
Sift4G
Benign
0.49
T
Polyphen
0.17
B
Vest4
0.47
MVP
0.52
MPC
0.19
ClinPred
0.021
T
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.27
gMVP
0.63
Mutation Taster
=48/52
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs184683619; hg19: chr1-33487277; API