3-43081036-G-C

Variant names:

• chr3-43081036-G-C
• rs150567400
• NM_032806.6:c.396C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_032806.6(POMGNT2):​c.396C>G​(p.Phe132Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000861 in 1,614,118 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. F132F) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000092 (0 hom.)
• Consequence: POMGNT2 NM_032806.6 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 0.376
• Publications: 1 publications found

Genes affected

POMGNT2 (HGNC:25902): (protein O-linked mannose N-acetylglucosaminyltransferase 2 (beta 1,4-)) This gene encodes a protein with glycosyltransferase activity although its function is not currently known. [provided by RefSeq, Sep 2012]

POMGNT2 Gene-Disease associations (from GenCC):

• muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 8

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp, G2P
• myopathy caused by variation in POMGNT2

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• muscular dystrophy-dystroglycanopathy, type A

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032806.6. 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
	POMGNT2	NM_032806.6	MANE Select	c.396C>G	p.Phe132Leu	missense	Exon 2 of 2	NP_116195.2
	POMGNT2	NM_001437285.1		c.396C>G	p.Phe132Leu	missense	Exon 3 of 3	NP_001424214.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	POMGNT2	ENST00000344697.3	TSL:1 MANE Select	c.396C>G	p.Phe132Leu	missense	Exon 2 of 2	ENSP00000344125.2	Q8NAT1
	POMGNT2	ENST00000441964.1	TSL:4	c.396C>G	p.Phe132Leu	missense	Exon 3 of 3	ENSP00000408992.1	Q8NAT1
	POMGNT2	ENST00000686643.1		c.396C>G	p.Phe132Leu	missense	Exon 4 of 4	ENSP00000509123.1	Q8NAT1

Frequencies

GnomAD3 genomes AF: 0.0000328 AC: 5 AN: 152232 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.0000588

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000159 AC: 4 AN: 251446 AF XY: 0.0000147

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000917 AC: 134 AN: 1461886 Hom.: 0 Cov.: 37 AF XY: 0.0000880 AC XY: 64 AN XY: 727244

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.000112 AC: 124 AN: 1112012

Other (OTH) AF: 0.000166 AC: 10 AN: 60396

GnomAD4 genome AF: 0.0000328 AC: 5 AN: 152232 Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1 AN XY: 74368

African (AFR) AF: 0.0000241 AC: 1 AN: 41470

American (AMR) AF: 0.00 AC: 0 AN: 15290

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5186

South Asian (SAS) AF: 0.00 AC: 0 AN: 4838

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10628

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

European-Non Finnish (NFE) AF: 0.0000588 AC: 4 AN: 68032

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

Alfa AF: 0.0000579 Hom.: 0

Bravo AF: 0.0000264

ExAC AF: 0.0000247 AC: 3

EpiCase AF: 0.000109

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)
-	1	-	Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 8 (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.26	D
BayesDel_noAF	Pathogenic	0.20
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Benign	0.046	T
Eigen	Benign	-0.093
Eigen_PC	Benign	0.055
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.045	D
MetaRNN	Uncertain	0.64	D
MetaSVM	Benign	-0.56	T
MutationAssessor	Benign	1.6	L
PhyloP100		0.38
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	-1.7	N
REVEL	Uncertain	0.45
Sift	Uncertain	0.0030	D
Sift4G	Uncertain	0.017	D
Polyphen		0.0030	B
Vest4		0.86
MutPred		0.60		Gain of glycosylation at Y129 (P = 0.0519)
MVP		0.65
MPC		0.96
ClinPred		0.47	T
GERP RS		5.0
Varity_R		0.29
gMVP		0.73
Mutation Taster		=53/47	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: rs150567400; hg19: chr3-43122528;