NM_016362.5:c.255delG

Variant names:

• chr3-10286782-GC-G
• rs1044457750
• NM_016362.5:c.255delG

Variant summary

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

The NM_016362.5(GHRL):​c.255delG​(p.Lys85AsnfsTer44) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: GHRL NM_016362.5 frameshift
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.17
• Publications: 0 publications found

Genes affected

GHRL (HGNC:18129): (ghrelin and obestatin prepropeptide) This gene encodes the ghrelin-obestatin preproprotein that is cleaved to yield two peptides, ghrelin and obestatin. Ghrelin is a powerful appetite stimulant and plays an important role in energy homeostasis. Its secretion is initiated when the stomach is empty, whereupon it binds to the growth hormone secretagogue receptor in the hypothalamus which results in the secretion of growth hormone (somatotropin). Ghrelin is thought to regulate multiple activities, including hunger, reward perception via the mesolimbic pathway, gastric acid secretion, gastrointestinal motility, and pancreatic glucose-stimulated insulin secretion. It was initially proposed that obestatin plays an opposing role to ghrelin by promoting satiety and thus decreasing food intake, but this action is still debated. Recent reports suggest multiple metabolic roles for obestatin, including regulating adipocyte function and glucose metabolism. Alternative splicing results in multiple transcript variants. In addition, antisense transcripts for this gene have been identified and may potentially regulate ghrelin-obestatin preproprotein expression. [provided by RefSeq, Nov 2014]

GHRLOS (HGNC:33885): (ghrelin opposite strand/antisense RNA) This gene is an antisense gene of the ghrelin/obestatin prepropeptide gene. Alternatively spliced transcript variants have been identified and they may function as non-coding regulatory RNAs. [provided by RefSeq, Jan 2013]

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_016362.5. 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
	GHRL	NM_016362.5	MANE Select	c.255delG	p.Lys85AsnfsTer44	frameshift	Exon 5 of 6	NP_057446.1	Q9UBU3-1
	GHRL	NM_001302821.2		c.255delG	p.Lys85AsnfsTer44	frameshift	Exon 6 of 7	NP_001289750.1	Q9UBU3-1
	GHRL	NM_001302822.2		c.255delG	p.Lys85AsnfsTer44	frameshift	Exon 5 of 6	NP_001289751.1	Q9UBU3-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GHRL	ENST00000335542.13	TSL:1 MANE Select	c.255delG	p.Lys85AsnfsTer44	frameshift	Exon 5 of 6	ENSP00000335074.8	Q9UBU3-1
	GHRL	ENST00000429122.1	TSL:1	c.255delG	p.Lys85AsnfsTer44	frameshift	Exon 5 of 6	ENSP00000414819.1	Q9UBU3-1
	GHRL	ENST00000457360.5	TSL:1	c.255delG	p.Lys85AsnfsTer44	frameshift	Exon 5 of 6	ENSP00000391406.1	Q9UBU3-1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 28

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Obesity (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		1.2
Mutation Taster		=47/153	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.18		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: rs1044457750; hg19: chr3-10328466;