chr9-74634755-T-C

Variant names:

• chr9-74634755-T-C
• rs869312971
• NM_006914.4:c.218T>C

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1 PM2 PP2 PP3_Moderate PP5_Moderate

The NM_006914.4(RORB):​c.218T>C​(p.Leu73Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. L73L) has been classified as Benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: RORB NM_006914.4 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:1 O:1
• Conservation: PhyloP100: 8.01
• Publications: 1 publications found

Genes affected

RORB (HGNC:10259): (RAR related orphan receptor B) The protein encoded by this gene is a member of the NR1 subfamily of nuclear hormone receptors. It is a DNA-binding protein that can bind as a monomer or as a homodimer to hormone response elements upstream of several genes to enhance the expression of those genes. The encoded protein has been shown to interact with NM23-2, a nucleoside diphosphate kinase involved in organogenesis and differentiation, and to help regulate the expression of some genes involved in circadian rhythm. [provided by RefSeq, Feb 2014]

RORB Gene-Disease associations (from GenCC):

• complex neurodevelopmental disorder

  Inheritance: AD Classification: DEFINITIVE, MODERATE Submitted by: Ambry Genetics, ClinGen
• epilepsy, idiopathic generalized, susceptibility to, 15

  Inheritance: AD Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia

ENSG00000286944 (HGNC:):

ACMG classification

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 8 uncertain in NM_006914.4
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 6 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Gene score misZ: 3.0833 (below the threshold of 3.09). Trascript score misZ: 3.661 (above the threshold of 3.09). GenCC associations: The gene is linked to complex neurodevelopmental disorder, epilepsy, idiopathic generalized, susceptibility to, 15.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.898
• PP5: Variant 9-74634755-T-C is Pathogenic according to our data. Variant chr9-74634755-T-C is described in ClinVar as Pathogenic. ClinVar VariationId is 225115.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006914.4. 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
	RORB	NM_006914.4	MANE Select	c.218T>C	p.Leu73Pro	missense	Exon 3 of 10	NP_008845.2
	RORB	NM_001365023.1		c.251T>C	p.Leu84Pro	missense	Exon 3 of 10	NP_001351952.1	Q92753-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RORB	ENST00000376896.8	TSL:1 MANE Select	c.218T>C	p.Leu73Pro	missense	Exon 3 of 10	ENSP00000366093.2	Q92753-1
	RORB	ENST00000396204.2	TSL:1	c.251T>C	p.Leu84Pro	missense	Exon 3 of 10	ENSP00000379507.2	Q92753-2
	ENSG00000286944	ENST00000658390.1		n.2867-1633A>G		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Inborn genetic diseases (1)
-	-	-	Epilepsy, idiopathic generalized, susceptibility to, 15 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.55	D
BayesDel_noAF	Pathogenic	0.55
CADD	Pathogenic	33
DANN	Pathogenic	1.0
DEOGEN2	Pathogenic	0.90	D
Eigen	Pathogenic	0.91
Eigen_PC	Pathogenic	0.87
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.74	T
M_CAP	Pathogenic	0.58	D
MetaRNN	Pathogenic	0.90	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.7	M
PhyloP100		8.0
PrimateAI	Pathogenic	0.93	D
PROVEAN	Pathogenic	-5.4	D
REVEL	Pathogenic	0.97
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0060	D
Polyphen		1.0	D
Vest4		0.77
MutPred		0.72		Loss of stability (P = 0.0145)
MVP		0.87
MPC		4.0
ClinPred		1.0	D
GERP RS		5.8
Varity_R		0.94
gMVP		0.96
Mutation Taster		=0/100	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs869312971; hg19: chr9-77249671;