16-67174708-C-A

Position:

• chr16-67174708-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The ENST00000568146.1(NOL3):​c.373C>A​(p.Pro125Thr) variant causes a missense 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. 10/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: NOL3 ENST00000568146.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.859

Genes affected

NOL3 (HGNC:7869): (nucleolar protein 3) This gene encodes an anti-apoptotic protein that has been shown to down-regulate the enzyme activities of caspase 2, caspase 8 and tumor protein p53. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.16583368).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NOL3	NM_001276309.3	c.383C>A	p.Pro128His	missense_variant	3/4	ENST00000564992.2
NOL3	XM_047434851.1	c.569C>A	p.Pro190His	missense_variant	4/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NOL3	ENST00000564992.2	c.383C>A	p.Pro128His	missense_variant	3/4	2	NM_001276309.3	P2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Myoclonus, familial, 1 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Nov 17, 2018

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Uncertain	0.037	T
BayesDel_noAF	Benign	-0.19
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.033	T;T;T;.;.
Eigen	Benign	-0.0070
Eigen_PC	Benign	-0.11
FATHMM_MKL	Benign	0.24	N
LIST_S2	Benign	0.73	T;T;T;T;T
M_CAP	Benign	0.029	D
MetaRNN	Benign	0.17	T;T;T;T;T
MetaSVM	Benign	-0.93	T
MutationTaster	Benign	1.0	N;N;N;N
PROVEAN	Benign	-2.0	N;N;N;N;N
REVEL	Benign	0.14
Sift	Pathogenic	0.0	D;D;D;.;.
Sift4G	Benign	0.074	T;D;D;D;T
Vest4		0.52, 0.55
MutPred		0.26		Gain of relative solvent accessibility (P = 0.09);Gain of relative solvent accessibility (P = 0.09);Gain of relative solvent accessibility (P = 0.09);Gain of relative solvent accessibility (P = 0.09);.;
MVP		0.45
ClinPred		0.98	D
GERP RS		3.9
Varity_R		0.18

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

Publications

LitVar

Other links and lift over

dbSNP: rs755455245; hg19: chr16-67208611;