Genetic Variant RBM48:p.Gln46His (chr7-92529502-G-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_032120.4(RBM48):c.138G>C(p.Gln46His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000498 in 1,606,476 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. Q46Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

RBM48
NM_032120.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.689

Publications

0 publications found

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 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.32280663).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RBM48	NM_032120.4 link	c.138G>C	p.Gln46His	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.138G>C	p.Gln46His	missense_variant	Exon 2 of 5	1	NM_032120.4	ENSP00000265732.5	Q5RL73-1
RBM48	ENST00000481551.5 link	c.138G>C	p.Gln46His	missense_variant	Exon 2 of 4	1		ENSP00000419242.1	Q5RL73-2
RBM48	ENST00000496410.1 link	c.-37G>C		5_prime_UTR_variant	Exon 2 of 3	3		ENSP00000418333.1	C9J787

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000275

AC:

AN:

1454326

Hom.:

Cov.:

AF XY:

0.00000415

AC XY:

AN XY:

723732

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33186

American (AMR)

AF:

0.00

AC:

AN:

43720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25962

East Asian (EAS)

AF:

0.00

AC:

AN:

39646

South Asian (SAS)

AF:

0.00

AC:

AN:

85072

European-Finnish (FIN)

AF:

0.0000562

AC:

AN:

53370

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

9.03e-7

AC:

AN:

1107470

Other (OTH)

AF:

0.00

AC:

AN:

60144

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000002), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152150

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74310

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41418

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68044

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000264

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.34

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.32

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.23

T;.

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.41

FATHMM_MKL

Benign

0.25

LIST_S2

Uncertain

0.92

D;D

M_CAP

Benign

0.0045

MetaRNN

Benign

0.32

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.8

L;L

PhyloP100

-0.69

PrimateAI

Benign

0.26

PROVEAN

Benign

-2.3

N;N

REVEL

Benign

0.12

Sift

Uncertain

0.0090

D;D

Sift4G

Uncertain

0.013

D;D

Polyphen

0.83

P;.

Vest4

0.45

MutPred

0.56

Gain of sheet (P = 0.0344);Gain of sheet (P = 0.0344);

MVP

0.56

MPC

0.38

ClinPred

0.85

GERP RS

-1.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.084

gMVP

0.65

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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chr7-92529502-G-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over