9-127868521-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000476.3(AK1):​c.325-9C>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00221 in 1,570,652 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0023 ( 11 hom. )

Consequence

AK1
NM_000476.3 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0001377
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.0680
Variant links:
Genes affected
AK1 (HGNC:361): (adenylate kinase 1) This gene encodes an adenylate kinase enzyme involved in energy metabolism and homeostasis of cellular adenine nucleotide ratios in different intracellular compartments. This gene is highly expressed in skeletal muscle, brain and erythrocytes. Certain mutations in this gene resulting in a functionally inadequate enzyme are associated with a rare genetic disorder causing nonspherocytic hemolytic anemia. Alternative splicing of this gene results in multiple transcript variants encoding different isoforms. This gene shares readthrough transcripts with the upstream ST6GALNAC6 gene. [provided by RefSeq, Jan 2022]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.59).
BP6
Variant 9-127868521-G-A is Benign according to our data. Variant chr9-127868521-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 776766.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-127868521-G-A is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00165 (251/152206) while in subpopulation AMR AF= 0.00307 (47/15298). AF 95% confidence interval is 0.00237. There are 0 homozygotes in gnomad4. There are 130 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 11 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AK1NM_000476.3 linkuse as main transcriptc.325-9C>T splice_polypyrimidine_tract_variant, intron_variant ENST00000644144.2 NP_000467.1
ST6GALNAC4-ST6GALNAC6-AK1NR_174625.1 linkuse as main transcriptn.3644-9C>T splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AK1ENST00000644144.2 linkuse as main transcriptc.325-9C>T splice_polypyrimidine_tract_variant, intron_variant NM_000476.3 ENSP00000494600 P1

Frequencies

GnomAD3 genomes
AF:
0.00165
AC:
251
AN:
152088
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000507
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00308
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00207
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00237
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00212
AC:
382
AN:
180200
Hom.:
1
AF XY:
0.00211
AC XY:
202
AN XY:
95948
show subpopulations
Gnomad AFR exome
AF:
0.00101
Gnomad AMR exome
AF:
0.00369
Gnomad ASJ exome
AF:
0.00146
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000857
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00300
Gnomad OTH exome
AF:
0.00287
GnomAD4 exome
AF:
0.00227
AC:
3216
AN:
1418446
Hom.:
11
Cov.:
36
AF XY:
0.00223
AC XY:
1567
AN XY:
701710
show subpopulations
Gnomad4 AFR exome
AF:
0.000738
Gnomad4 AMR exome
AF:
0.00302
Gnomad4 ASJ exome
AF:
0.00134
Gnomad4 EAS exome
AF:
0.0000532
Gnomad4 SAS exome
AF:
0.00115
Gnomad4 FIN exome
AF:
0.0000994
Gnomad4 NFE exome
AF:
0.00256
Gnomad4 OTH exome
AF:
0.00228
GnomAD4 genome
AF:
0.00165
AC:
251
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.00175
AC XY:
130
AN XY:
74422
show subpopulations
Gnomad4 AFR
AF:
0.000506
Gnomad4 AMR
AF:
0.00307
Gnomad4 ASJ
AF:
0.00144
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00207
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.00237
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00115
Hom.:
0
Bravo
AF:
0.00182
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 04, 2024- -
Hemolytic anemia due to adenylate kinase deficiency Benign:1
Likely benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesFeb 22, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.59
CADD
Benign
11
DANN
Benign
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00014
dbscSNV1_RF
Benign
0.31
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs145431113; hg19: chr9-130630800; COSMIC: COSV56345256; COSMIC: COSV56345256; API