19-40759506-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP7

The NM_004596.5(SNRPA):​c.322C>A​(p.Arg108Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,860 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SNRPA
NM_004596.5 synonymous

Scores

1
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.77
Variant links:
Genes affected
SNRPA (HGNC:11151): (small nuclear ribonucleoprotein polypeptide A) The protein encoded by this gene associates with stem loop II of the U1 small nuclear ribonucleoprotein, which binds the 5' splice site of precursor mRNAs and is required for splicing. The encoded protein autoregulates itself by polyadenylation inhibition of its own pre-mRNA via dimerization and has been implicated in the coupling of splicing and polyadenylation. [provided by RefSeq, Oct 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP7
Synonymous conserved (PhyloP=2.77 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SNRPANM_004596.5 linkc.322C>A p.Arg108Arg synonymous_variant Exon 3 of 6 ENST00000243563.8 NP_004587.1 P09012

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SNRPAENST00000243563.8 linkc.322C>A p.Arg108Arg synonymous_variant Exon 3 of 6 1 NM_004596.5 ENSP00000243563.2 P09012

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461860
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727236
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.:
31
Bravo
AF:
0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Uncertain
-0.060
CADD
Benign
14
DANN
Benign
0.70
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
2.7

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

LitVar

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

Other links and lift over

dbSNP: rs754567162; hg19: chr19-41265411; API