Variant chr20-38497421-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_020336.4(RALGAPB):c.458G>A(p.Arg153His) variant causes a missense change. The variant allele was found at a frequency of 0.0000266 in 1,613,768 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R153C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

RALGAPB
NM_020336.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.62

Variant links:

Genes affected

RALGAPB (HGNC:29221): (Ral GTPase activating protein non-catalytic subunit beta) Enables protein heterodimerization activity. Predicted to be involved in activation of GTPase activity. Predicted to act upstream of or within Ral protein signal transduction; regulation of exocyst localization; and regulation of protein localization. [provided by Alliance of Genome Resources, Apr 2022]

RALGAPB links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), RALGAPB. . Gene score misZ 3.1771 (greater than the threshold 3.09). Trascript score misZ 4.2843 (greater than threshold 3.09). GenCC has associacion of gene with complex neurodevelopmental disorder.

BP4

Computational evidence support a benign effect (MetaRNN=0.11422557).

BS2

High AC in GnomAd4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RALGAPB	NM_020336.4 linkuse as main transcript	c.458G>A	p.Arg153His	missense_variant	4/30	ENST00000262879.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RALGAPB	ENST00000262879.11 linkuse as main transcript	c.458G>A	p.Arg153His	missense_variant	4/30	1	NM_020336.4	P4	Q86X10-1
RALGAPB	ENST00000397040.5 linkuse as main transcript	c.458G>A	p.Arg153His	missense_variant	4/30	1		P4	Q86X10-1
RALGAPB	ENST00000397042.7 linkuse as main transcript	c.458G>A	p.Arg153His	missense_variant	4/30	1		A1	Q86X10-3
RALGAPB	ENST00000495949.1 linkuse as main transcript			upstream_gene_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

251398

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135862

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000212

AC:

AN:

1461626

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727136

show subpopulations

Gnomad4 AFR exome

AF:

0.000448

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000899

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152142

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74324

show subpopulations

Gnomad4 AFR

AF:

0.000169

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000772

Hom.:

Bravo

AF:

0.000189

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 12, 2021

The c.458G>A (p.R153H) alteration is located in exon 4 (coding exon 3) of the RALGAPB gene. This alteration results from a G to A substitution at nucleotide position 458, causing the arginine (R) at amino acid position 153 to be replaced by a histidine (H). 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

Benign

0.081

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.31

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.056

.;T;T

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.020

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.95

D;.;D

M_CAP

Benign

0.013

MetaRNN

Benign

0.11

T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

1.7

L;L;L

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Benign

0.37

PROVEAN

Benign

-1.6

N;N;N

REVEL

Benign

0.098

Sift

Benign

0.084

T;T;T

Sift4G

Benign

0.098

T;T;T

Polyphen

0.0060

.;B;B

Vest4

0.21

MVP

0.24

MPC

0.54

ClinPred

0.092

GERP RS

3.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.070

gMVP

0.24

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over