8-22994558-C-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_Strong BP6_Moderate BS2

The ENST00000519685.5(RHOBTB2):c.-23-3C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000325 in 1,548,248 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/2 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.0018 (2 hom., cov: 33)
  • Exomes 𝑓: 0.00017 (1 hom.)
• Consequence: RHOBTB2 ENST00000519685.5 splice_region, splice_polypyrimidine_tract, intron
• Scores: Splicing: ADA: 0.0006344
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.0410

Genes affected

RHOBTB2 (HGNC:18756): (Rho related BTB domain containing 2) The protein encoded by this gene is a small Rho GTPase and a candidate tumor suppressor. The encoded protein interacts with the cullin-3 protein, a ubiquitin E3 ligase necessary for mitotic cell division. This protein inhibits the growth and spread of some types of breast cancer. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

(HGNC:):

PEBP4 (HGNC:28319): (phosphatidylethanolamine binding protein 4) The phosphatidylethanolamine (PE)-binding proteins, including PEBP4, are an evolutionarily conserved family of proteins with pivotal biologic functions, such as lipid binding and inhibition of serine proteases (Wang et al., 2004 [PubMed 15302887]).[supplied by OMIM, Dec 2008]

ACMG classification

Verdict is Benign. Variant got -10 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.72).
• BP6: Variant 8-22994558-C-T is Benign according to our data. Variant chr8-22994558-C-T is described in ClinVar as [Benign]. Clinvar id is 2658473.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS2: High Homozygotes in GnomAd at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LOC107984124	XR_007060857.1	n.127+5121G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
	ENST00000523884.1	n.149-9640G>A		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes AF: 0.00177 AC: 269 AN: 152168 Hom.: 2 Cov.: 33

Gnomad AFR AF: 0.00618

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000589

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: 0.00

Gnomad OTH AF: 0.00191

GnomAD3 exomes AF: 0.000455 AC: 70 AN: 153780 Hom.: 1 AF XY: 0.000319 AC XY: 26 AN XY: 81566

Gnomad AFR exome AF: 0.00720

Gnomad AMR exome AF: 0.000447

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000919

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000168

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000168 AC: 234 AN: 1395962 Hom.: 1 Cov.: 29 AF XY: 0.000144 AC XY: 99 AN XY: 688772

Gnomad4 AFR exome AF: 0.00540

Gnomad4 AMR exome AF: 0.000449

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000504

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000929

Gnomad4 OTH exome AF: 0.000311

GnomAD4 genome AF: 0.00177 AC: 269 AN: 152286 Hom.: 2 Cov.: 33 AF XY: 0.00164 AC XY: 122 AN XY: 74460

Gnomad4 AFR AF: 0.00616

Gnomad4 AMR AF: 0.000588

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00189

Alfa AF: 0.000983 Hom.: 1

Bravo AF: 0.00187

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Mar 01, 2022

RHOBTB2: BS1, BS2 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.72
Cadd	Benign	7.2
Dann	Benign	0.79

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00063
dbscSNV1_RF	Benign	0.13

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs7841874; hg19: chr8-22852071;