Genetic Variant RBM48:p.Gly57Arg (chr7-92529533-G-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_032120.4(RBM48):c.169G>C(p.Gly57Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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

RBM48
NM_032120.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.52

Variant links:

Genes affected

RBM48 (HGNC:21785): (RNA binding motif protein 48) Predicted to enable RNA binding activity. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

RBM48 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.856

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBM48	NM_032120.4 link	c.169G>C	p.Gly57Arg	missense_variant	Exon 2 of 5	ENST00000265732.10	NP_115496.2	Q5RL73-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
RBM48	ENST00000265732.10 link	c.169G>C	p.Gly57Arg	missense_variant	Exon 2 of 5	1	NM_032120.4	ENSP00000265732.5	Q5RL73-1
RBM48	ENST00000481551.5 link	c.169G>C	p.Gly57Arg	missense_variant	Exon 2 of 4	1		ENSP00000419242.1	Q5RL73-2
RBM48	ENST00000496410.1 link	c.-6G>C		5_prime_UTR_variant	Exon 2 of 3	3		ENSP00000418333.1	C9J787

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459078

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726014

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33408

American (AMR)

AF:

0.00

AC:

AN:

44674

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26108

East Asian (EAS)

AF:

0.00

AC:

AN:

39658

South Asian (SAS)

AF:

0.00

AC:

AN:

86132

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53410

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1109624

Other (OTH)

AF:

0.0000166

AC:

AN:

60300

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 29, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.169G>C (p.G57R) alteration is located in exon 2 (coding exon 2) of the RBM48 gene. This alteration results from a G to C substitution at nucleotide position 169, causing the glycine (G) at amino acid position 57 to be replaced by an arginine (R). 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

Pathogenic

0.95

BayesDel_addAF

Pathogenic

0.28

BayesDel_noAF

Pathogenic

0.16

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.51

D;.

Eigen

Pathogenic

0.94

Eigen_PC

Pathogenic

0.91

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.97

D;D

M_CAP

Benign

0.026

MetaRNN

Pathogenic

0.86

D;D

MetaSVM

Uncertain

0.14

MutationAssessor

Pathogenic

2.9

M;M

PhyloP100

9.5

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-3.8

D;D

REVEL

Pathogenic

0.81

Sift

Uncertain

0.0040

D;D

Sift4G

Uncertain

0.012

D;D

Polyphen

1.0

D;.

Vest4

0.79

MutPred

0.65

Gain of helix (P = 0.0164);Gain of helix (P = 0.0164);

MVP

0.76

MPC

0.87

ClinPred

0.99

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.55

gMVP

0.80

Mutation Taster

=28/72

disease causing

(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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over