chr16-66823268-G-C

Position:

• chr16-66823268-G-C

Variant summary

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

The NM_003905.4(NAE1):​c.360C>G​(p.Phe120Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000413 in 1,452,834 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: NAE1 NM_003905.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.33

Genes affected

NAE1 (HGNC:621): (NEDD8 activating enzyme E1 subunit 1) The protein encoded by this gene binds to the beta-amyloid precursor protein. Beta-amyloid precursor protein is a cell surface protein with signal-transducing properties, and it is thought to play a role in the pathogenesis of Alzheimer's disease. In addition, the encoded protein can form a heterodimer with UBE1C and bind and activate NEDD8, a ubiquitin-like protein. This protein is required for cell cycle progression through the S/M checkpoint. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NAE1	NM_003905.4	c.360C>G	p.Phe120Leu	missense_variant	6/20	ENST00000290810.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NAE1	ENST00000290810.8	c.360C>G	p.Phe120Leu	missense_variant	6/20	1	NM_003905.4	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000413 AC: 6 AN: 1452834 Hom.: 0 Cov.: 30 AF XY: 0.00000277 AC XY: 2 AN XY: 722296

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000541

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 22, 2023

The c.360C>G (p.F120L) alteration is located in exon 6 (coding exon 6) of the NAE1 gene. This alteration results from a C to G substitution at nucleotide position 360, causing the phenylalanine (F) at amino acid position 120 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.89
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Uncertain	0.030
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.28	.;T;.;.;.;.;T
Eigen	Uncertain	0.34
Eigen_PC	Uncertain	0.38
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.96	D;D;D;D;D;D;D
M_CAP	Benign	0.024	T
MetaRNN	Uncertain	0.48	T;T;T;T;T;T;T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.7	.;L;.;.;.;.;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.69	T
PROVEAN	Pathogenic	-5.6	D;D;D;D;.;.;D
REVEL	Benign	0.29
Sift	Uncertain	0.024	D;D;D;D;.;.;T
Sift4G	Uncertain	0.035	D;D;D;T;T;.;.
Polyphen		1.0	.;D;.;.;.;.;.
Vest4		0.83
MutPred		0.49		.;Gain of disorder (P = 0.1659);.;.;.;.;.;
MVP		0.66
MPC		0.84
ClinPred		0.99	D
GERP RS		4.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.8
Varity_R		0.82
gMVP		0.72

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: rs1960339224; hg19: chr16-66857171;