Variant 18-22937185-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_002894.3(RBBP8):c.109+225A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00132 in 809,972 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0048 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00053 ( 4 hom. )

Consequence

RBBP8
NM_002894.3 intron

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.347

Variant links:

Genes affected

RBBP8 (HGNC:9891): (RB binding protein 8, endonuclease) The protein encoded by this gene is a ubiquitously expressed nuclear protein. It is found among several proteins that bind directly to retinoblastoma protein, which regulates cell proliferation. This protein complexes with transcriptional co-repressor CTBP. It is also associated with BRCA1 and is thought to modulate the functions of BRCA1 in transcriptional regulation, DNA repair, and/or cell cycle checkpoint control. It is suggested that this gene may itself be a tumor suppressor acting in the same pathway as BRCA1. Three transcript variants encoding two different isoforms have been found for this gene. More transcript variants exist, but their full-length natures have not been determined. [provided by RefSeq, Jul 2008]

RBBP8 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.93).

BP6

Variant 18-22937185-A-G is Benign according to our data. Variant chr18-22937185-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 1202926.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00476 (723/151988) while in subpopulation AFR AF= 0.0168 (695/41444). AF 95% confidence interval is 0.0157. There are 4 homozygotes in gnomad4. There are 330 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RBBP8	NM_002894.3 link	c.109+225A>G		intron_variant		ENST00000327155.10	NP_002885.1	Q99708-1A0A024RC34

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RBBP8	ENST00000327155.10 link	c.109+225A>G		intron_variant		1	NM_002894.3	ENSP00000323050.5		Q99708-1

Frequencies

GnomAD3 genomes

AF:

0.00475

AC:

722

AN:

151876

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0168

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00131

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:

0.00191

GnomAD4 exome

AF:

0.000529

AC:

348

AN:

657984

Hom.:

AF XY:

0.000451

AC XY:

150

AN XY:

332350

show subpopulations

Gnomad4 AFR exome

AF:

0.0181

Gnomad4 AMR exome

AF:

0.000940

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000197

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000445

Gnomad4 OTH exome

AF:

0.000900

GnomAD4 genome

AF:

0.00476

AC:

723

AN:

151988

Hom.:

Cov.:

AF XY:

0.00444

AC XY:

330

AN XY:

74294

show subpopulations

Gnomad4 AFR

AF:

0.0168

Gnomad4 AMR

AF:

0.00131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00291

Hom.:

Bravo

AF:

0.00530

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jul 05, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.93

CADD

Benign

1.1

DANN

Benign

0.44

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