rs609320

Positions:

• chr1-25390874-C-A
• chr1-25390874-C-G
• chr1-25390874-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_020485.8(RHCE):​c.676G>T​(p.Ala226Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 12/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 31)
• Consequence: RHCE NM_020485.8 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.742

Genes affected

RHCE (HGNC:10008): (Rh blood group CcEe antigens) 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 both the RhC and RhE antigens on a single polypeptide and a second gene which encodes the RhD protein. 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. A mutation in this gene results in amorph-type Rh-null disease. Alternative splicing of this gene results in multiple transcript variants encoding several different isoforms. [provided by RefSeq, Aug 2016]

RHCE (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RHCE	NM_020485.8	c.676G>T	p.Ala226Ser	missense_variant	5/10	ENST00000294413.13	NP_065231.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RHCE	ENST00000294413.13	c.676G>T	p.Ala226Ser	missense_variant	5/10	1	NM_020485.8	ENSP00000294413.6

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.49
CADD	Benign	15
DANN	Uncertain	1.0
Eigen	Benign	-0.26
Eigen_PC	Benign	-0.27
FATHMM_MKL	Benign	0.19	N
LIST_S2	Benign	0.82	T;T;T;T
M_CAP	Benign	0.0082	T
MetaRNN	Uncertain	0.50	T;T;T;T
MetaSVM	Benign	-1.1	T
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-2.2	N;N;N;N
REVEL	Benign	0.13
Sift	Uncertain	0.0040	D;D;D;D
Sift4G	Uncertain	0.0030	D;D;D;D
Polyphen		0.45	.;.;B;.
Vest4		0.15
MutPred		0.80		.;Gain of disorder (P = 0.0299);.;.;
MVP		0.11
MPC		0.36
ClinPred		0.50	D
GERP RS		3.1
gMVP		0.41

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs609320; hg19: chr1-25717365;