3-119815018-G-C

Variant names:

• chr3-119815018-G-C
• NM_003889.4:c.834G>C
• NR1I2 p.Gly278Gly

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_003889.4(NR1I2):​c.834G>C​(p.Gly278Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. G278G) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NR1I2 NM_003889.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.949
• Publications: 0 publications found

Genes affected

NR1I2 (HGNC:7968): (nuclear receptor subfamily 1 group I member 2) This gene product belongs to the nuclear receptor superfamily, members of which are transcription factors characterized by a ligand-binding domain and a DNA-binding domain. The encoded protein is a transcriptional regulator of the cytochrome P450 gene CYP3A4, binding to the response element of the CYP3A4 promoter as a heterodimer with the 9-cis retinoic acid receptor RXR. It is activated by a range of compounds that induce CYP3A4, including dexamethasone and rifampicin. Several alternatively spliced transcripts encoding different isoforms, some of which use non-AUG (CUG) translation initiation codon, have been described for this gene. Additional transcript variants exist, however, they have not been fully characterized. [provided by RefSeq, Jul 2008]

NR1I2 Gene-Disease associations (from GenCC):

• pediatric lymphoma

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.6).
• BP7: Synonymous conserved (PhyloP=-0.949 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003889.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NR1I2	NM_003889.4	MANE Select	c.834G>C	p.Gly278Gly	synonymous	Exon 6 of 9	NP_003880.3
	NR1I2	NM_022002.3		c.951G>C	p.Gly317Gly	synonymous	Exon 6 of 9	NP_071285.1	O75469-7
	NR1I2	NM_033013.3		c.723G>C	p.Gly241Gly	synonymous	Exon 6 of 9	NP_148934.1	O75469-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NR1I2	ENST00000393716.8	TSL:1 MANE Select	c.834G>C	p.Gly278Gly	synonymous	Exon 6 of 9	ENSP00000377319.3	O75469-1
	NR1I2	ENST00000337940.4	TSL:1	c.951G>C	p.Gly317Gly	synonymous	Exon 6 of 9	ENSP00000336528.4	O75469-7
	NR1I2	ENST00000466380.6	TSL:1	c.723G>C	p.Gly241Gly	synonymous	Exon 6 of 9	ENSP00000420297.2	O75469-4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.60
CADD	Benign	4.0
DANN	Benign	0.58
PhyloP100		-0.95
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr3-119533865;