rs1806851

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_005105.5(RBM8A):​c.240C>T​(p.Val80=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00082 in 1,614,014 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0044 ( 6 hom., cov: 31)
Exomes 𝑓: 0.00044 ( 6 hom. )

Consequence

RBM8A
NM_005105.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.375
Variant links:
Genes affected
RBM8A (HGNC:9905): (RNA binding motif protein 8A) This gene encodes a protein with a conserved RNA-binding motif. The protein is found predominantly in the nucleus, although it is also present in the cytoplasm. It is preferentially associated with mRNAs produced by splicing, including both nuclear mRNAs and newly exported cytoplasmic mRNAs. It is thought that the protein remains associated with spliced mRNAs as a tag to indicate where introns had been present, thus coupling pre- and post-mRNA splicing events. Previously, it was thought that two genes encode this protein, RBM8A and RBM8B; it is now thought that the RBM8B locus is a pseudogene. There are two alternate translation start codons with this gene, which result in two forms of the protein. An allele mutation and a low-frequency noncoding single-nucleotide polymorphism (SNP) in this gene cause thrombocytopenia-absent radius (TAR) syndrome. [provided by RefSeq, Jul 2013]
LIX1L-AS1 (HGNC:41210): (LIX1L antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 1-145926584-G-A is Benign according to our data. Variant chr1-145926584-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 436517.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.375 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.000443 (647/1461880) while in subpopulation AFR AF= 0.0161 (540/33480). AF 95% confidence interval is 0.015. There are 6 homozygotes in gnomad4_exome. There are 284 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 6 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RBM8ANM_005105.5 linkuse as main transcriptc.240C>T p.Val80= synonymous_variant 4/6 ENST00000583313.7 NP_005096.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RBM8AENST00000583313.7 linkuse as main transcriptc.240C>T p.Val80= synonymous_variant 4/61 NM_005105.5 ENSP00000463058 P3Q9Y5S9-1

Frequencies

GnomAD3 genomes
AF:
0.00445
AC:
676
AN:
152016
Hom.:
6
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0154
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00203
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00239
GnomAD3 exomes
AF:
0.00121
AC:
304
AN:
251418
Hom.:
2
AF XY:
0.000787
AC XY:
107
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.0172
Gnomad AMR exome
AF:
0.000492
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000443
AC:
647
AN:
1461880
Hom.:
6
Cov.:
31
AF XY:
0.000391
AC XY:
284
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.0161
Gnomad4 AMR exome
AF:
0.000738
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00103
GnomAD4 genome
AF:
0.00444
AC:
676
AN:
152134
Hom.:
6
Cov.:
31
AF XY:
0.00425
AC XY:
316
AN XY:
74396
show subpopulations
Gnomad4 AFR
AF:
0.0154
Gnomad4 AMR
AF:
0.00196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00237
Alfa
AF:
0.000940
Hom.:
1
Bravo
AF:
0.00501

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoSep 30, 2015- -
Radial aplasia-thrombocytopenia syndrome Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 18, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
CADD
Benign
8.6
DANN
Benign
0.92

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: rs1806851; hg19: chr1-145508509; API