Genetic Variant RHD:p.Leu181Leu (chr1-25301000-C-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP7BS2_Supporting

The NM_016124.6(RHD):c.541C>T(p.Leu181Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000132 in 1,378,584 control chromosomes in the GnomAD database, including 34 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00052 ( 12 hom., cov: 21)

Exomes 𝑓: 0.000091 ( 22 hom. )

Consequence

RHD
NM_016124.6 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0100

Variant links:

Genes affected

RHD (HGNC:10009): (Rh blood group D antigen) The Rh blood group system is the second most clinically significant of the blood groups, second only to ABO. It is also the most polymorphic of the blood groups, with variations due to deletions, gene conversions, and missense mutations. The Rh blood group includes this gene, which encodes the RhD protein, and a second gene that encodes both the RhC and RhE antigens on a single polypeptide. The two genes, and a third unrelated gene, are found in a cluster on chromosome 1. The classification of Rh-positive and Rh-negative individuals is determined by the presence or absence of the highly immunogenic RhD protein on the surface of erythrocytes. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

RHD links:

RSRP1 (HGNC:25234): (arginine and serine rich protein 1)

RSRP1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.7).

BP7

Synonymous conserved (PhyloP=-0.01 with no splicing effect.

BS2

High Homozygotes in GnomAd4 at 12 BG geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RHD	NM_016124.6 link	c.541C>T	p.Leu181Leu	synonymous_variant	Exon 4 of 10	ENST00000328664.9	NP_057208.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RHD	ENST00000328664.9 link	c.541C>T	p.Leu181Leu	synonymous_variant	Exon 4 of 10	1	NM_016124.6	ENSP00000331871.4		Q02161-1

Frequencies

GnomAD3 genomes

AF:

0.000524

AC:

AN:

131758

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00165

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000367

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:

0.000550

GnomAD3 exomes

AF:

0.000200

AC:

AN:

224836

Hom.:

AF XY:

0.000165

AC XY:

AN XY:

121116

show subpopulations

Gnomad AFR exome

AF:

0.00270

Gnomad AMR exome

AF:

0.0000303

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000698

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000906

AC:

113

AN:

1246826

Hom.:

Cov.:

AF XY:

0.0000756

AC XY:

AN XY:

621842

show subpopulations

Gnomad4 AFR exome

AF:

0.00285

Gnomad4 AMR exome

AF:

0.0000469

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000248

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000650

Gnomad4 OTH exome

AF:

0.000207

GnomAD4 genome

AF:

0.000524

AC:

AN:

131758

Hom.:

Cov.:

AF XY:

0.000497

AC XY:

AN XY:

64438

show subpopulations

Gnomad4 AFR

AF:

0.00165

Gnomad4 AMR

AF:

0.000367

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:

0.000550

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.70

CADD

Benign

3.9

DANN

Benign

0.78

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over