chr9-134417208-G-C

Position:

• chr9-134417208-G-C

Variant summary

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

The NM_002957.6(RXRA):​c.661G>C​(p.Glu221Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: RXRA NM_002957.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.50

Genes affected

RXRA (HGNC:10477): (retinoid X receptor alpha) Retinoid X receptors (RXRs) and retinoic acid receptors (RARs) are nuclear receptors that mediate the biological effects of retinoids by their involvement in retinoic acid-mediated gene activation. These receptors function as transcription factors by binding as homodimers or heterodimers to specific sequences in the promoters of target genes. The protein encoded by this gene is a member of the steroid and thyroid hormone receptor superfamily of transcriptional regulators. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2014]

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	UniProt
RXRA	NM_002957.6	c.661G>C	p.Glu221Gln	missense_variant	5/10	ENST00000481739.2
RXRA	NM_001291920.2	c.580G>C	p.Glu194Gln	missense_variant	5/10
RXRA	NM_001291921.2	c.370G>C	p.Glu124Gln	missense_variant	4/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RXRA	ENST00000481739.2	c.661G>C	p.Glu221Gln	missense_variant	5/10	1	NM_002957.6	P3
RXRA	ENST00000672570.1	c.580G>C	p.Glu194Gln	missense_variant	5/10			A1
RXRA	ENST00000356384.4	n.1071G>C		non_coding_transcript_exon_variant	7/12	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 05, 2024

The c.661G>C (p.E221Q) alteration is located in exon 5 (coding exon 5) of the RXRA gene. This alteration results from a G to C substitution at nucleotide position 661, causing the glutamic acid (E) at amino acid position 221 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.53
BayesDel_addAF	Benign	-0.049	T
BayesDel_noAF	Benign	-0.31
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Benign	0.38	T
Eigen	Uncertain	0.41
Eigen_PC	Uncertain	0.32
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Benign	0.034	D
MetaRNN	Uncertain	0.64	D
MetaSVM	Benign	-0.38	T
MutationAssessor	Pathogenic	3.3	M
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.65	T
PROVEAN	Benign	-2.3	N
REVEL	Benign	0.24
Sift	Uncertain	0.026	D
Sift4G	Benign	0.091	T
Polyphen		0.91	P
Vest4		0.62
MutPred		0.21		Gain of MoRF binding (P = 0.1001);
MVP		0.75
MPC		1.1
ClinPred		0.93	D
GERP RS		3.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.51
gMVP		0.63

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-137309054;