9-114341723-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001317950.2(AKNA):​c.3877G>A​(p.Ala1293Thr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000128 in 1,564,546 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. 1/1 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 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

AKNA
NM_001317950.2 missense, splice_region

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.41
Variant links:
Genes affected
AKNA (HGNC:24108): (AT-hook transcription factor) Predicted to enable DNA binding activity. Involved in positive regulation of transcription by RNA polymerase II. Located in centrosome; cytosol; and nuclear lumen. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.031931162).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AKNANM_001317950.2 linkuse as main transcriptc.3877G>A p.Ala1293Thr missense_variant, splice_region_variant 21/22 ENST00000374088.8 NP_001304879.1 Q7Z591-1Q64FY1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AKNAENST00000374088.8 linkuse as main transcriptc.3877G>A p.Ala1293Thr missense_variant, splice_region_variant 21/222 NM_001317950.2 ENSP00000363201.3 Q7Z591-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
7.08e-7
AC:
1
AN:
1412384
Hom.:
0
Cov.:
32
AF XY:
0.00000143
AC XY:
1
AN XY:
698960
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.17e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 16, 2024The c.3877G>A (p.A1293T) alteration is located in exon 21 (coding exon 20) of the AKNA gene. This alteration results from a G to A substitution at nucleotide position 3877, causing the alanine (A) at amino acid position 1293 to be replaced by a threonine (T). 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
0.073
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.80
CADD
Benign
1.3
DANN
Benign
0.44
DEOGEN2
Benign
0.0018
T;T;.;.;.
Eigen
Benign
-1.8
Eigen_PC
Benign
-1.9
FATHMM_MKL
Benign
0.044
N
LIST_S2
Benign
0.61
T;.;T;T;T
M_CAP
Benign
0.0036
T
MetaRNN
Benign
0.032
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.1
L;L;.;.;.
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.62
N;N;N;N;N
REVEL
Benign
0.019
Sift
Benign
0.49
T;T;T;T;T
Sift4G
Benign
0.50
T;T;T;T;T
Polyphen
0.010
B;B;.;.;B
Vest4
0.058
MutPred
0.15
Gain of phosphorylation at A1293 (P = 0.0065);Gain of phosphorylation at A1293 (P = 0.0065);.;.;.;
MVP
0.40
MPC
0.068
ClinPred
0.099
T
GERP RS
-10
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.025
gMVP
0.13

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs774233395; hg19: chr9-117104003; COSMIC: COSV56340710; API