chr3-10289764-G-A

Position:

chr3-10289764-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_016362.5(GHRL):c.223C>T(p.Arg75Trp) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000082 in 1,584,902 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000077 ( 0 hom. )

Consequence

GHRL
NM_016362.5 missense, splice_region

Scores

Splicing: ADA: 0.7095

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.447

Variant links:

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]

GHRL links:

GHRL (HGNC:):

GHRL links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08347651).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GHRL	NM_016362.5 linkuse as main transcript	c.223C>T	p.Arg75Trp	missense_variant, splice_region_variant	4/6	ENST00000335542.13	NP_057446.1	Q9UBU3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GHRL	ENST00000335542.13 linkuse as main transcript	c.223C>T	p.Arg75Trp	missense_variant, splice_region_variant	4/6	1	NM_016362.5	ENSP00000335074.8		Q9UBU3-1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151562

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000657

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

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251316

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135848

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000768

AC:

AN:

1433220

Hom.:

Cov.:

AF XY:

0.00000839

AC XY:

AN XY:

714878

show subpopulations

Gnomad4 AFR exome

AF:

0.0000303

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000506

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000644

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151682

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74142

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000301

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 26, 2024

The c.223C>T (p.R75W) alteration is located in exon 3 (coding exon 2) of the GHRL gene. This alteration results from a C to T substitution at nucleotide position 223, causing the arginine (R) at amino acid position 75 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.46

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.30

T;.;.;.;.;.;T;T

Eigen

Benign

-0.68

Eigen_PC

Benign

-0.75

FATHMM_MKL

Benign

0.27

LIST_S2

Benign

0.48

.;.;T;T;T;T;.;T

M_CAP

Benign

0.023

MetaRNN

Benign

0.083

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.89

MutationAssessor

Benign

1.3

L;.;L;.;.;.;L;L

PrimateAI

Benign

0.21

PROVEAN

Uncertain

-3.5

D;D;D;D;D;D;D;D

REVEL

Benign

0.081

Sift

Benign

0.048

D;D;D;D;D;D;D;D

Sift4G

Uncertain

0.0060

D;D;D;D;D;D;D;D

Polyphen

0.0080

B;B;.;B;B;B;B;B

Vest4

0.26

MutPred

0.59

Loss of disorder (P = 0.0284);.;Loss of disorder (P = 0.0284);.;.;.;Loss of disorder (P = 0.0284);Loss of disorder (P = 0.0284);

MVP

0.25

MPC

0.0090

ClinPred

0.10

GERP RS

1.4

Varity_R

0.12

gMVP

0.36

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.71

dbscSNV1_RF

Benign

0.58

SpliceAI score (max)

0.040

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over