NM_001128227.3:c.*2245A>T

Variant names:

• chr9-36215120-T-A
• rs1193929989
• NM_001128227.3:c.*2245A>T

Variant summary

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

The NM_001128227.3(GNE):​c.*2245A>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000267 in 149,634 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000027 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: GNE NM_001128227.3 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:2
• Conservation: PhyloP100: -0.397
• Publications: 0 publications found

Genes affected

GNE (HGNC:23657): (glucosamine (UDP-N-acetyl)-2-epimerase/N-acetylmannosamine kinase) The protein encoded by this gene is a bifunctional enzyme that initiates and regulates the biosynthesis of N-acetylneuraminic acid (NeuAc), a precursor of sialic acids. It is a rate-limiting enzyme in the sialic acid biosynthetic pathway. Sialic acid modification of cell surface molecules is crucial for their function in many biologic processes, including cell adhesion and signal transduction. Differential sialylation of cell surface molecules is also implicated in the tumorigenicity and metastatic behavior of malignant cells. Mutations in this gene are associated with sialuria, autosomal recessive inclusion body myopathy, and Nonaka myopathy. Alternative splicing of this gene results in transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

CLTA (HGNC:2090): (clathrin light chain A) Clathrin is a large, soluble protein composed of heavy and light chains. It functions as the main structural component of the lattice-type cytoplasmic face of coated pits and vesicles which entrap specific macromolecules during receptor-mediated endocytosis. This gene encodes one of two clathrin light chain proteins which are believed to function as regulatory elements. Alternative splicing results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 8 and 12. [provided by RefSeq, May 2010]

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 (BayesDel_noAF=-0.96).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001128227.3. 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
	GNE	NM_001128227.3	MANE Plus Clinical	c.*2245A>T		3_prime_UTR	Exon 12 of 12	NP_001121699.1	Q9Y223-2
	GNE	NM_005476.7	MANE Select	c.*2245A>T		3_prime_UTR	Exon 12 of 12	NP_005467.1	Q9Y223-1
	GNE	NM_001374797.1		c.*2245A>T		3_prime_UTR	Exon 11 of 11	NP_001361726.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GNE	ENST00000396594.8	TSL:1 MANE Plus Clinical	c.*2245A>T		3_prime_UTR	Exon 12 of 12	ENSP00000379839.3	Q9Y223-2
	GNE	ENST00000642385.2	MANE Select	c.*2245A>T		3_prime_UTR	Exon 12 of 12	ENSP00000494141.2	Q9Y223-1
	CLTA	ENST00000464497.5	TSL:5	n.485+10941T>A		intron	N/A	ENSP00000419158.1	F8WF69

Frequencies

GnomAD3 genomes AF: 0.0000267 AC: 4 AN: 149634 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000247

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: 0.0000445

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 32 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 24

African (AFR) AC: 0 AN: 0

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AC: 0 AN: 0

East Asian (EAS) AC: 0 AN: 0

South Asian (SAS) AC: 0 AN: 0

European-Finnish (FIN) AC: 0 AN: 0

Middle Eastern (MID) AC: 0 AN: 0

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 30

Other (OTH) AF: 0.00 AC: 0 AN: 2

GnomAD4 genome AF: 0.0000267 AC: 4 AN: 149634 Hom.: 0 Cov.: 32 AF XY: 0.0000274 AC XY: 2 AN XY: 72868

African (AFR) AF: 0.0000247 AC: 1 AN: 40490

American (AMR) AF: 0.00 AC: 0 AN: 15052

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3442

East Asian (EAS) AF: 0.00 AC: 0 AN: 5116

South Asian (SAS) AF: 0.00 AC: 0 AN: 4724

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10146

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 312

European-Non Finnish (NFE) AF: 0.0000445 AC: 3 AN: 67380

Other (OTH) AF: 0.00 AC: 0 AN: 2070

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000113

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	GNE myopathy (1)
-	1	-	Sialuria (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.96
CADD	Benign	7.1
DANN	Benign	0.62
PhyloP100		-0.40

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: rs1193929989; hg19: chr9-36215117;