Genetic Variant RBM45:p.Asp18Tyr (chr2-178112598-G-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_152945.4(RBM45):c.52G>T(p.Asp18Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.0000607 in 1,613,364 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000064 ( 2 hom. )

Consequence

RBM45
NM_152945.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.69

Publications

0 publications found

Variant links:

Genes affected

RBM45 (HGNC:24468): (RNA binding motif protein 45) This gene encodes a member of the RNA recognition motif (RRM)-type RNA-binding family of proteins. This protein exhibits preferential binding to poly(C) RNA. Initial cloning of this gene found that the rat ortholog was dynamically expressed in the developing rat brain. This protein has been localized to inclusion bodies in the brain and spinal cord of amyotrophic lateral sclerosis and Alzheimer's patients. A pseudogene has been identified on chromosome 8. [provided by RefSeq, Feb 2015]

RBM45 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.094337285).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBM45	NM_152945.4 link	c.52G>T	p.Asp18Tyr	missense_variant	Exon 1 of 10	ENST00000286070.10	NP_694453.2	Q8IUH3-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RBM45	ENST00000286070.10 link	c.52G>T	p.Asp18Tyr	missense_variant	Exon 1 of 10	1	NM_152945.4	ENSP00000286070.5		Q8IUH3-3
RBM45	ENST00000424000.6 link	n.175G>T		non_coding_transcript_exon_variant	Exon 1 of 9	2

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152270

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.000576

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000100

AC:

AN:

248808

AF XY:

0.000104

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000377

Gnomad ASJ exome

AF:

0.000600

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000358

Gnomad OTH exome

AF:

0.000329

GnomAD4 exome

AF:

0.0000637

AC:

AN:

1461094

Hom.:

Cov.:

AF XY:

0.0000688

AC XY:

AN XY:

726874

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33478

American (AMR)

AF:

0.000380

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.000957

AC:

AN:

26114

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52766

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

0.0000405

AC:

AN:

1111954

Other (OTH)

AF:

0.0000663

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152270

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74392

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41476

American (AMR)

AF:

0.000131

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.000576

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10632

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68048

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000149

Hom.:

Bravo

AF:

0.0000831

ExAC

AF:

0.0000741

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 15, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.52G>T (p.D18Y) alteration is located in exon 1 (coding exon 1) of the RBM45 gene. This alteration results from a G to T substitution at nucleotide position 52, causing the aspartic acid (D) at amino acid position 18 to be replaced by a tyrosine (Y). 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

0.47

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.54

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.065

T;.

Eigen

Benign

-0.015

Eigen_PC

Benign

0.094

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.84

T;T

M_CAP

Benign

0.0092

MetaRNN

Benign

0.094

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.0

N;N

PhyloP100

4.7

PrimateAI

Benign

0.46

PROVEAN

Benign

-2.2

.;N

REVEL

Benign

0.10

Sift

Uncertain

0.015

.;D

Sift4G

Uncertain

0.051

T;T

Polyphen

0.28

.;B

Vest4

0.21

MutPred

0.33

Loss of disorder (P = 0.0496);Loss of disorder (P = 0.0496);

MVP

0.37

MPC

0.89

ClinPred

0.18

GERP RS

3.1

PromoterAI

-0.024

Neutral

(source)

Varity_R

0.23

gMVP

0.49

Mutation Taster

=70/30

polymorphism

(source)

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

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chr2-178112598-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over