2-177219111-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_194247.4(HNRNPA3):ā€‹c.1036A>Cā€‹(p.Met346Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,820 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

HNRNPA3
NM_194247.4 missense

Scores

3
8
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.28
Variant links:
Genes affected
HNRNPA3 (HGNC:24941): (heterogeneous nuclear ribonucleoprotein A3) Enables RNA binding activity. Predicted to be involved in mRNA splicing, via spliceosome. Located in nucleoplasm. Part of catalytic step 2 spliceosome. [provided by Alliance of Genome Resources, Apr 2022]
NFE2L2 (HGNC:7782): (NFE2 like bZIP transcription factor 2) This gene encodes a transcription factor which is a member of a small family of basic leucine zipper (bZIP) proteins. The encoded transcription factor regulates genes which contain antioxidant response elements (ARE) in their promoters; many of these genes encode proteins involved in response to injury and inflammation which includes the production of free radicals. Multiple transcript variants encoding different isoforms have been characterized for this gene. [provided by RefSeq, Sep 2015]

Genome browser will be placed here

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 Protein UniProt
HNRNPA3NM_194247.4 linkuse as main transcriptc.1036A>C p.Met346Leu missense_variant 9/11 ENST00000392524.7 NP_919223.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HNRNPA3ENST00000392524.7 linkuse as main transcriptc.1036A>C p.Met346Leu missense_variant 9/115 NM_194247.4 ENSP00000376309 P51991-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461820
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727206
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsJun 02, 2024The c.1036A>C (p.M346L) alteration is located in exon 9 (coding exon 9) of the HNRNPA3 gene. This alteration results from a A to C substitution at nucleotide position 1036, causing the methionine (M) at amino acid position 346 to be replaced by a leucine (L). 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
Uncertain
0.49
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Uncertain
0.090
CADD
Uncertain
24
DANN
Benign
0.95
DEOGEN2
Benign
0.066
T;.;T;T
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.70
.;T;T;T
M_CAP
Benign
0.043
D
MetaRNN
Uncertain
0.57
D;D;D;D
MetaSVM
Uncertain
0.21
D
MutationAssessor
Uncertain
2.5
M;.;M;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Benign
-1.4
N;N;N;N
REVEL
Uncertain
0.55
Sift
Benign
0.39
T;T;T;D
Sift4G
Benign
0.085
T;T;T;T
Polyphen
0.52
P;.;P;.
Vest4
0.48
MutPred
0.35
Gain of methylation at K347 (P = 0.0319);.;Gain of methylation at K347 (P = 0.0319);.;
MVP
0.92
MPC
0.86
ClinPred
0.88
D
GERP RS
4.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.23
gMVP
0.97

Splicing

Name
Calibrated prediction
Score
Prediction
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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-178083839; API