rs757287887

Variant names:

• chr9-36214917-T-C
• rs757287887
• NM_001128227.3:c.*2448A>G

Variant summary

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

The NM_005476.7(GNE):​c.*2448A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000919 in 152,338 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 0.000092 (0 hom., cov: 32)
• Consequence: GNE NM_005476.7 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:3
• Conservation: PhyloP100: 0.978
• 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 -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005476.7. 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.*2448A>G		3_prime_UTR	Exon 12 of 12	NP_001121699.1	Q9Y223-2
	GNE	NM_005476.7	MANE Select	c.*2448A>G		3_prime_UTR	Exon 12 of 12	NP_005467.1	Q9Y223-1
	GNE	NM_001374797.1		c.*2448A>G		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.*2448A>G		3_prime_UTR	Exon 12 of 12	ENSP00000379839.3	Q9Y223-2
	GNE	ENST00000642385.2	MANE Select	c.*2448A>G		3_prime_UTR	Exon 12 of 12	ENSP00000494141.2	Q9Y223-1
	CLTA	ENST00000464497.5	TSL:5	n.485+10738T>C		intron	N/A	ENSP00000419158.1	F8WF69

Frequencies

GnomAD3 genomes AF: 0.0000920 AC: 14 AN: 152220 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000196

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.000132

Gnomad OTH AF: 0.000479

GnomAD4 exome Cov.: 0

GnomAD4 genome AF: 0.0000919 AC: 14 AN: 152338 Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3 AN XY: 74496

African (AFR) AF: 0.00 AC: 0 AN: 41580

American (AMR) AF: 0.000196 AC: 3 AN: 15306

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

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

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10614

Middle Eastern (MID) AF: 0.00340 AC: 1 AN: 294

European-Non Finnish (NFE) AF: 0.000132 AC: 9 AN: 68034

Other (OTH) AF: 0.000474 AC: 1 AN: 2110

Alfa AF: 0.0000540 Hom.: 0

Bravo AF: 0.000140

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	GNE myopathy (1)
-	1	-	Inclusion Body Myopathy, Recessive (1)
-	1	-	Sialuria (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	10
DANN	Benign	0.87
PhyloP100		0.98

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: rs757287887; hg19: chr9-36214914;