3-25732444-G-C

Variant names:

• chr3-25732444-G-C
• rs761035118
• NM_018297.4:c.1300C>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_018297.4(NGLY1):​c.1300C>G​(p.Leu434Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,613,458 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L434F) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000042 (0 hom.)
• Consequence: NGLY1 NM_018297.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 1.71
• Publications: 1 publications found

Genes affected

NGLY1 (HGNC:17646): (N-glycanase 1) This gene encodes an enzyme that catalyzes hydrolysis of an N(4)-(acetyl-beta-D-glucosaminyl) asparagine residue to N-acetyl-beta-D-glucosaminylamine and a peptide containing an aspartate residue. The encoded enzyme may play a role in the proteasome-mediated degradation of misfolded glycoproteins. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Feb 2009]

NGLY1 Gene-Disease associations (from GenCC):

• congenital disorder of deglycosylation 1

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, G2P, Labcorp Genetics (formerly Invitae)
• NGLY1-deficiency

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.03570792).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018297.4. 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
	NGLY1	NM_018297.4	MANE Select	c.1300C>G	p.Leu434Val	missense	Exon 9 of 12	NP_060767.2
	NGLY1	NM_001145293.2		c.1246C>G	p.Leu416Val	missense	Exon 9 of 12	NP_001138765.1	Q96IV0-2
	NGLY1	NM_001145294.2		c.1174C>G	p.Leu392Val	missense	Exon 9 of 12	NP_001138766.1	Q96IV0-5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NGLY1	ENST00000280700.10	TSL:1 MANE Select	c.1300C>G	p.Leu434Val	missense	Exon 9 of 12	ENSP00000280700.5	Q96IV0-1
	NGLY1	ENST00000428257.5	TSL:1	c.1246C>G	p.Leu416Val	missense	Exon 9 of 12	ENSP00000387430.1	Q96IV0-2
	NGLY1	ENST00000308710.9	TSL:1	c.1237C>G	p.Leu413Val	missense	Exon 9 of 12	ENSP00000307980.5	A0A0C4DFP4

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 152144 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000327

Gnomad ASJ AF: 0.00

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: 0.000207 AC: 52 AN: 250968 AF XY: 0.000177

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00142

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000491

GnomAD4 exome AF: 0.0000417 AC: 61 AN: 1461314 Hom.: 0 Cov.: 31 AF XY: 0.0000358 AC XY: 26 AN XY: 726950

African (AFR) AF: 0.00 AC: 0 AN: 33454

American (AMR) AF: 0.00134 AC: 60 AN: 44688

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26112

East Asian (EAS) AF: 0.00 AC: 0 AN: 39662

South Asian (SAS) AF: 0.00 AC: 0 AN: 86214

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53406

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111646

Other (OTH) AF: 0.00 AC: 0 AN: 60368

GnomAD4 genome AF: 0.0000329 AC: 5 AN: 152144 Hom.: 0 Cov.: 32 AF XY: 0.0000538 AC XY: 4 AN XY: 74334

African (AFR) AF: 0.00 AC: 0 AN: 41426

American (AMR) AF: 0.000327 AC: 5 AN: 15272

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5196

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10616

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68016

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

Alfa AF: 0.0000254 Hom.: 0

Bravo AF: 0.000117

ExAC AF: 0.0000988 AC: 12

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	not provided (2)
-	1	-	Congenital disorder of deglycosylation (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.46	T
BayesDel_noAF	Benign	-0.47
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.14	T
Eigen	Benign	-0.13
Eigen_PC	Benign	0.073
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.92	D
M_CAP	Benign	0.0059	T
MetaRNN	Benign	0.036	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.4	L
PhyloP100		1.7
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-0.86	N
REVEL	Benign	0.020
Sift	Benign	0.51	T
Sift4G	Benign	0.51	T
Polyphen		0.0040	B
Vest4		0.29
MutPred		0.35		Gain of methylation at K431 (P = 0.0801)
MVP		0.56
MPC		0.038
ClinPred		0.036	T
GERP RS		4.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.1
Varity_R		0.067
gMVP		0.48
Mutation Taster		=93/7	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.10		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: rs761035118; hg19: chr3-25773935;