rs746765533

Variant names:

• chr16-119123-T-A
• rs746765533
• NM_001077350.3:c.318+3A>T

Your query was ambiguous. Multiple possible variants found:

• chr16-119123-T-A
• chr16-119123-T-C

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 3P and 4B. PP3_Moderate PP5 BS2

The NM_001077350.3(NPRL3):​c.318+3A>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,613,008 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000068 (0 hom.)
• Consequence: NPRL3 NM_001077350.3 splice_region, intron
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1 U:3 O:1
• Conservation: PhyloP100: 3.21
• Publications: 0 publications found

Genes affected

NPRL3 (HGNC:14124): (NPR3 like, GATOR1 complex subunit) Contributes to GTPase activator activity. Involved in cellular response to amino acid starvation and negative regulation of TOR signaling. Located in lysosomal membrane. Part of GATOR1 complex. Implicated in focal epilepsy. [provided by Alliance of Genome Resources, Apr 2022]

NPRL3 Gene-Disease associations (from GenCC):

• focal epilepsy

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• epilepsy, familial focal, with variable foci 3

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• familial focal epilepsy with variable foci

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• PP5: Variant 16-119123-T-A is Pathogenic according to our data. Variant chr16-119123-T-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 574218.
• BS2: High AC in GnomAdExome4 at 10 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001077350.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NPRL3	NM_001077350.3	MANE Select	c.318+3A>T		splice_region intron	N/A	NP_001070818.1
	NPRL3	NM_001243248.2		c.318+3A>T		splice_region intron	N/A	NP_001230177.1
	NPRL3	NM_001243249.2		c.318+3A>T		splice_region intron	N/A	NP_001230178.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NPRL3	ENST00000611875.5	TSL:5 MANE Select	c.318+3A>T		splice_region intron	N/A	ENSP00000478273.1
	NPRL3	ENST00000399953.7	TSL:1	c.318+3A>T		splice_region intron	N/A	ENSP00000382834.4
	NPRL3	ENST00000621703.4	TSL:1	n.189-6348A>T		intron	N/A	ENSP00000477801.1

Frequencies

GnomAD3 genomes AF: 0.0000198 AC: 3 AN: 151898 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.000866

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000161 AC: 4 AN: 248066 AF XY: 0.0000149

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.000400

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000684 AC: 10 AN: 1461110 Hom.: 0 Cov.: 32 AF XY: 0.0000110 AC XY: 8 AN XY: 726836

African (AFR) AF: 0.00 AC: 0 AN: 33452

American (AMR) AF: 0.00 AC: 0 AN: 44662

Ashkenazi Jewish (ASJ) AF: 0.000230 AC: 6 AN: 26108

East Asian (EAS) AF: 0.00 AC: 0 AN: 39686

South Asian (SAS) AF: 0.00 AC: 0 AN: 86166

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53364

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5758

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111578

Other (OTH) AF: 0.0000663 AC: 4 AN: 60336

GnomAD4 genome AF: 0.0000198 AC: 3 AN: 151898 Hom.: 0 Cov.: 33 AF XY: 0.0000270 AC XY: 2 AN XY: 74200

African (AFR) AF: 0.00 AC: 0 AN: 41350

American (AMR) AF: 0.00 AC: 0 AN: 15252

Ashkenazi Jewish (ASJ) AF: 0.000866 AC: 3 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5168

South Asian (SAS) AF: 0.00 AC: 0 AN: 4806

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10572

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67974

Other (OTH) AF: 0.00 AC: 0 AN: 2082

Alfa AF: 0.0000508 Hom.: 0

Bravo AF: 0.00000756

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions as Germline

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	2	-	Epilepsy, familial focal, with variable foci 3 (3)
1	-	-	Inborn genetic diseases (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.46
CADD	Benign	16
DANN	Benign	0.91
PhyloP100		3.2

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.92		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.92		Position offset: 3

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

Other links and lift over

dbSNP: rs746765533; hg19: chr16-169122;