NM_030665.4:c.776C>T

Variant names:

• chr17-17793724-C-T
• rs758661378
• NM_030665.4:c.776C>T

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_Moderate BP6 BS2

The NM_030665.4(RAI1):​c.776C>T​(p.Pro259Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,612,828 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P259P) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000012 (0 hom.)
• Consequence: RAI1 NM_030665.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:2
• Conservation: PhyloP100: 1.16
• Publications: 0 publications found

Genes affected

RAI1 (HGNC:9834): (retinoic acid induced 1) This gene is located within the Smith-Magenis syndrome region on chromosome 17. It is highly similar to its mouse counterpart and is expressed at high levels mainly in neuronal tissues. The protein encoded by this gene includes a polymorphic polyglutamine tract in the N-terminal domain. Expression of the mouse counterpart in neurons is induced by retinoic acid. This gene is associated with both the severity of the phenotype and the response to medication in schizophrenic patients. [provided by RefSeq, Jul 2008]

RAI1 Gene-Disease associations (from GenCC):

• Smith-Magenis syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet
• Potocki-Lupski syndrome

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics

ACMG classification

Our verdict: Benign. The variant received -7 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.19941506).
• BP6: Variant 17-17793724-C-T is Benign according to our data. Variant chr17-17793724-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 436493.
• BS2: High AC in GnomAd4 at 5 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030665.4. 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
	RAI1	NM_030665.4	MANE Select	c.776C>T	p.Pro259Leu	missense	Exon 3 of 6	NP_109590.3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAI1	ENST00000353383.6	TSL:1 MANE Select	c.776C>T	p.Pro259Leu	missense	Exon 3 of 6	ENSP00000323074.4	Q7Z5J4-1
	RAI1	ENST00000918590.1		c.776C>T	p.Pro259Leu	missense	Exon 2 of 5	ENSP00000588649.1
	RAI1	ENST00000955422.1		c.776C>T	p.Pro259Leu	missense	Exon 3 of 6	ENSP00000625481.1

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 152138 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000196

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000122 AC: 3 AN: 244940 AF XY: 0.0000224

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000274

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000116 AC: 17 AN: 1460690 Hom.: 0 Cov.: 97 AF XY: 0.0000124 AC XY: 9 AN XY: 726664

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000812 AC: 7 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52248

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000809 AC: 9 AN: 1112002

Other (OTH) AF: 0.0000166 AC: 1 AN: 60384

GnomAD4 genome AF: 0.0000329 AC: 5 AN: 152138 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74308

African (AFR) AF: 0.0000241 AC: 1 AN: 41426

American (AMR) AF: 0.000196 AC: 3 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5186

South Asian (SAS) AF: 0.000207 AC: 1 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10604

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68028

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000227

ExAC AF: 0.0000165 AC: 2

EpiCase AF: 0.000109

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)
-	-	1	not provided (1)
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.083	T
BayesDel_noAF	Benign	-0.29
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.23	T
Eigen	Uncertain	0.24
Eigen_PC	Benign	0.13
FATHMM_MKL	Benign	0.70	D
LIST_S2	Uncertain	0.86	D
M_CAP	Uncertain	0.29	D
MetaRNN	Benign	0.20	T
MetaSVM	Uncertain	-0.22	T
MutationAssessor	Benign	1.9	L
PhyloP100		1.2
PrimateAI	Uncertain	0.60	T
PROVEAN	Uncertain	-2.5	N
REVEL	Benign	0.15
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.0080	D
Polyphen		1.0	D
Vest4		0.39
MutPred		0.25		Gain of helix (P = 0.0022)
MVP		0.19
MPC		0.35
ClinPred		0.19	T
GERP RS		4.8
Varity_R		0.17
gMVP		0.28
Mutation Taster		=91/9	polymorphism

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: rs758661378; hg19: chr17-17697038;