rs1554331125
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 5P and 2B. PM1PM2PP2BP4_Moderate
The NM_002137.4(HNRNPA2B1):c.797A>G(p.Asn266Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,458,950 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )
Consequence
HNRNPA2B1
NM_002137.4 missense
NM_002137.4 missense
Scores
3
9
Clinical Significance
Conservation
PhyloP100: 4.75
Genes affected
HNRNPA2B1 (HGNC:5033): (heterogeneous nuclear ribonucleoprotein A2/B1) This gene belongs to the A/B subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has two repeats of quasi-RRM domains that bind to RNAs. This gene has been described to generate two alternatively spliced transcript variants which encode different isoforms. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 3 ACMG points.
PM1
?
In a modified_residue Asymmetric dimethylarginine; alternate (size 0) in uniprot entity ROA2_HUMAN
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, HNRNPA2B1
BP4
?
Computational evidence support a benign effect (MetaRNN=0.19716454).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
HNRNPA2B1 | NM_002137.4 | c.797A>G | p.Asn266Ser | missense_variant | 8/11 | ENST00000618183.5 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
HNRNPA2B1 | ENST00000618183.5 | c.797A>G | p.Asn266Ser | missense_variant | 8/11 | 5 | NM_002137.4 | A1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 6.85e-7 AC: 1AN: 1458950Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 725868
GnomAD4 exome
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1
AN:
1458950
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31
AF XY:
AC XY:
0
AN XY:
725868
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Inclusion body myopathy with early-onset Paget disease with or without frontotemporal dementia 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jun 12, 2017 | In summary, this variant has uncertain impact on HNRNPA2B1 function. The available evidence is currently insufficient to determine its role in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C45"). This variant has not been reported in the literature in individuals with an HNRNPA2B1-related disease. This variant is not present in population databases (ExAC no frequency). This sequence change replaces asparagine with serine at codon 278 of the HNRNPA2B1 protein (p.Asn278Ser). The asparagine residue is highly conserved and there is a small physicochemical difference between asparagine and serine. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Feb 18, 2021 | Not observed in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Benign
Dann
Uncertain
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
M_CAP
Benign
T
MetaRNN
Benign
T;T;T
MetaSVM
Benign
T
MutationTaster
Benign
N;N
PrimateAI
Uncertain
T
Polyphen
B;B;B
Vest4
0.37, 0.36
MutPred
0.30
.;Gain of glycosylation at N278 (P = 0.0042);.;
MVP
0.79
MPC
1.3
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
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