chr10-93593731-C-T

Position:

• chr10-93593731-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_006744.4(RBP4):​c.568+92G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.149 in 1,405,670 control chromosomes in the GnomAD database, including 17,436 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.13 (1553 hom., cov: 32)
  • Exomes 𝑓: 0.15 (15883 hom.)
• Consequence: RBP4 NM_006744.4 intron
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.269

Genes affected

RBP4 (HGNC:9922): (retinol binding protein 4) This protein belongs to the lipocalin family and is the specific carrier for retinol (vitamin A alcohol) in the blood. It delivers retinol from the liver stores to the peripheral tissues. In plasma, the RBP-retinol complex interacts with transthyretin which prevents its loss by filtration through the kidney glomeruli. A deficiency of vitamin A blocks secretion of the binding protein posttranslationally and results in defective delivery and supply to the epidermal cells. [provided by RefSeq, Jul 2008]

FFAR4 (HGNC:19061): (free fatty acid receptor 4) This gene encodes a G protein-coupled receptor (GPR) which belongs to the rhodopsin family of GPRs. The encoded protein functions as a receptor for free fatty acids, including omega-3, and participates in suppressing anti-inflammatory responses and insulin sensitizing. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2012]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).
• BP6: Variant 10-93593731-C-T is Benign according to our data. Variant chr10-93593731-C-T is described in ClinVar as [Benign]. Clinvar id is 1247112.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.165 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RBP4	NM_006744.4	c.568+92G>A		intron_variant		ENST00000371464.8
RBP4	NM_001323517.1	c.568+92G>A		intron_variant
RBP4	NM_001323518.2	c.562+92G>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RBP4	ENST00000371464.8	c.568+92G>A		intron_variant		1	NM_006744.4	P1
RBP4	ENST00000371467.5	c.568+92G>A		intron_variant		5		P1
RBP4	ENST00000371469.2	c.562+92G>A		intron_variant		5
FFAR4	ENST00000604414.1	c.697-10343C>T		intron_variant		3

Frequencies

GnomAD3 genomes AF: 0.132 AC: 20022 AN: 151976 Hom.: 1552 Cov.: 32

Gnomad AFR AF: 0.0883

Gnomad AMI AF: 0.224

Gnomad AMR AF: 0.0980

Gnomad ASJ AF: 0.164

Gnomad EAS AF: 0.00328

Gnomad SAS AF: 0.0636

Gnomad FIN AF: 0.197

Gnomad MID AF: 0.152

Gnomad NFE AF: 0.167

Gnomad OTH AF: 0.126

GnomAD4 exome AF: 0.151 AC: 189744 AN: 1253576 Hom.: 15883 AF XY: 0.150 AC XY: 94814 AN XY: 633152

Gnomad4 AFR exome AF: 0.0871

Gnomad4 AMR exome AF: 0.0726

Gnomad4 ASJ exome AF: 0.163

Gnomad4 EAS exome AF: 0.00152

Gnomad4 SAS exome AF: 0.0750

Gnomad4 FIN exome AF: 0.185

Gnomad4 NFE exome AF: 0.168

Gnomad4 OTH exome AF: 0.149

GnomAD4 genome AF: 0.132 AC: 20024 AN: 152094 Hom.: 1553 Cov.: 32 AF XY: 0.131 AC XY: 9735 AN XY: 74350

Gnomad4 AFR AF: 0.0882

Gnomad4 AMR AF: 0.0979

Gnomad4 ASJ AF: 0.164

Gnomad4 EAS AF: 0.00310

Gnomad4 SAS AF: 0.0635

Gnomad4 FIN AF: 0.197

Gnomad4 NFE AF: 0.167

Gnomad4 OTH AF: 0.124

Alfa AF: 0.154 Hom.: 438

Bravo AF: 0.123

Asia WGS AF: 0.0420 AC: 146 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	May 15, 2021	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	4.6
DANN	Benign	0.38

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

Other links and lift over

dbSNP: rs10882275; hg19: chr10-95353488;