10-110100678-G-A
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_016824.5(ADD3):c.25G>A(p.Val9Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000103 in 1,458,820 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )
Consequence
ADD3
NM_016824.5 missense
NM_016824.5 missense
Scores
4
5
8
Clinical Significance
Conservation
PhyloP100: 9.60
Genes affected
ADD3 (HGNC:245): (adducin 3) Adducins are heteromeric proteins composed of different subunits referred to as adducin alpha, beta and gamma. The three subunits are encoded by distinct genes and belong to a family of membrane skeletal proteins involved in the assembly of spectrin-actin network in erythrocytes and at sites of cell-cell contact in epithelial tissues. While adducins alpha and gamma are ubiquitously expressed, the expression of adducin beta is restricted to brain and hematopoietic tissues. Adducin, originally purified from human erythrocytes, was found to be a heterodimer of adducins alpha and beta. Polymorphisms resulting in amino acid substitutions in these two subunits have been associated with the regulation of blood pressure in an animal model of hypertension. Heterodimers consisting of alpha and gamma subunits have also been described. Structurally, each subunit is comprised of two distinct domains. The amino-terminal region is protease resistant and globular in shape, while the carboxy-terminal region is protease sensitive. The latter contains multiple phosphorylation sites for protein kinase C, the binding site for calmodulin, and is required for association with spectrin and actin. Alternatively spliced adducin gamma transcripts encoding different isoforms have been described. The functions of the different isoforms are not known. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ADD3 | NM_016824.5 | c.25G>A | p.Val9Met | missense_variant | 2/15 | ENST00000356080.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ADD3 | ENST00000356080.9 | c.25G>A | p.Val9Met | missense_variant | 2/15 | 1 | NM_016824.5 | A1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD3 exomes AF: 0.0000242 AC: 6AN: 247864Hom.: 0 AF XY: 0.0000298 AC XY: 4AN XY: 134092
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GnomAD4 exome AF: 0.0000103 AC: 15AN: 1458820Hom.: 0 Cov.: 30 AF XY: 0.0000138 AC XY: 10AN XY: 725698
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
Bravo
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ExAC
?
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5
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Dec 02, 2021 | This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 9 of the ADD3 protein (p.Val9Met). This variant is present in population databases (rs770809843, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with ADD3-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Not Available"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Not Available"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Pathogenic
Dann
Pathogenic
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
M_CAP
Benign
T
MetaRNN
Uncertain
D;D;D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M;M;M
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N;N
REVEL
Benign
Sift
Uncertain
D;D;D
Sift4G
Uncertain
D;D;D
Polyphen
D;D;D
Vest4
MutPred
Loss of catalytic residue at V9 (P = 0.01);Loss of catalytic residue at V9 (P = 0.01);Loss of catalytic residue at V9 (P = 0.01);
MVP
MPC
0.51
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at