rs1553652803

Variant names:

• chr3-25732329-A-G
• rs1553652803
• NM_018297.4:c.1415T>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_018297.4(NGLY1):​c.1415T>C​(p.Met472Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,216 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. M472V) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: NGLY1 NM_018297.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.21
• Publications: 0 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, Labcorp Genetics (formerly Invitae), G2P
• NGLY1-deficiency

  Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, PanelApp Australia

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06272459).

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.1415T>C	p.Met472Thr	missense	Exon 9 of 12	NP_060767.2
	NGLY1	NM_001145293.2		c.1361T>C	p.Met454Thr	missense	Exon 9 of 12	NP_001138765.1
	NGLY1	NM_001145294.2		c.1289T>C	p.Met430Thr	missense	Exon 9 of 12	NP_001138766.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NGLY1	ENST00000280700.10	TSL:1 MANE Select	c.1415T>C	p.Met472Thr	missense	Exon 9 of 12	ENSP00000280700.5
	NGLY1	ENST00000428257.5	TSL:1	c.1361T>C	p.Met454Thr	missense	Exon 9 of 12	ENSP00000387430.1
	NGLY1	ENST00000308710.9	TSL:1	c.1352T>C	p.Met451Thr	missense	Exon 9 of 12	ENSP00000307980.5

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152018 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000656

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

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461198 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 726902

African (AFR) AF: 0.00 AC: 0 AN: 33442

American (AMR) AF: 0.0000224 AC: 1 AN: 44700

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26100

East Asian (EAS) AF: 0.00 AC: 0 AN: 39674

South Asian (SAS) AF: 0.00 AC: 0 AN: 86194

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53390

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1111566

Other (OTH) AF: 0.00 AC: 0 AN: 60366

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152018 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74258

African (AFR) AF: 0.00 AC: 0 AN: 41404

American (AMR) AF: 0.0000656 AC: 1 AN: 15242

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5194

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10600

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 314

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67970

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Congenital disorder of deglycosylation (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.099
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.62
CADD	Benign	14
DANN	Benign	0.65
DEOGEN2	Benign	0.058	T
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.34
FATHMM_MKL	Uncertain	0.76	D
LIST_S2	Benign	0.62	T
M_CAP	Benign	0.0046	T
MetaRNN	Benign	0.063	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	-0.18	N
PhyloP100		1.2
PrimateAI	Benign	0.30	T
PROVEAN	Benign	0.67	N
REVEL	Benign	0.039
Sift	Benign	0.59	T
Sift4G	Benign	0.79	T
Polyphen		0.0	B
Vest4		0.27
MutPred		0.57		Gain of disorder (P = 0.079)
MVP		0.23
MPC		0.039
ClinPred		0.15	T
GERP RS		3.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.025
gMVP		0.55
Mutation Taster		=90/10	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: rs1553652803; hg19: chr3-25773820;