7-30964097-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000823.4(GHRHR):c.29T>G(p.Val10Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000199 in 1,550,080 control chromosomes in the GnomAD database, with no homozygous occurrence. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V10I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00019 ( 0 hom. )

Consequence

GHRHR
NM_000823.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 0.904

Variant links:

Genes affected

GHRHR (HGNC:4266): (growth hormone releasing hormone receptor) This gene encodes a receptor for growth hormone-releasing hormone. Binding of this hormone to the receptor leads to synthesis and release of growth hormone. Mutations in this gene have been associated with isolated growth hormone deficiency (IGHD), also known as Dwarfism of Sindh, a disorder characterized by short stature. [provided by RefSeq, Jun 2010]

GHRHR links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GHRHR	NM_000823.4 linkuse as main transcript	c.29T>G	p.Val10Gly	missense_variant	1/13	ENST00000326139.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GHRHR	ENST00000326139.7 linkuse as main transcript	c.29T>G	p.Val10Gly	missense_variant	1/13	1	NM_000823.4	P1
GHRHR	ENST00000466427.1 linkuse as main transcript	n.285-4737T>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.000250

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000426

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000194

AC:

AN:

154880

Hom.:

AF XY:

0.000184

AC XY:

AN XY:

81626

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000485

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000298

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000193

AC:

270

AN:

1397896

Hom.:

Cov.:

AF XY:

0.000177

AC XY:

122

AN XY:

689522

show subpopulations

Gnomad4 AFR exome

AF:

0.0000317

Gnomad4 AMR exome

AF:

0.000364

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000228

Gnomad4 OTH exome

AF:

0.000172

GnomAD4 genome

AF:

0.000250

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000426

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000284

Hom.:

Bravo

AF:

0.000264

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000266

AC:

ExAC

AF:

0.0000377

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Nov 14, 2021	This sequence change replaces valine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 10 of the GHRHR protein (p.Val10Gly). This variant is present in population databases (rs139599160, gnomAD 0.04%). This missense change has been observed in individual(s) with clinical features of growth hormone deficiency sufficient (PMID: 19622623). ClinVar contains an entry for this variant (Variation ID: 360027). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). Experimental studies have shown that this missense change affects GHRHR function (PMID: 19622623). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Uncertain significance, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -
Uncertain significance, no assertion criteria provided	clinical testing	Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)	-	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Nov 16, 2023

Variant summary: GHRHR c.29T>G (p.Val10Gly) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00019 in 154880 control chromosomes (gnomAD). c.29T>G has been reported in the literature in the heterozygous state in individuals affected with Isolated growth hormone deficiency, as well as in unaffected individuals (Godi_2009). This report does not provide unequivocal conclusions about association of the variant with Isolated growth hormone deficiency, type 4. At least one publication reports experimental evidence evaluating an impact on protein function, finding that it disrupts cleavage of the signal peptide and localization to the cell surface (Godi_2009). The following publication has been ascertained in the context of this evaluation (PMID: 19622623). Two submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. Both submitters classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as VUS-possibly pathogenic. -

Isolated growth hormone deficiency type IB

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jul 27, 2016

The GHRHR c.29T>G (p.Val10Gly) variant is a missense variant that has been reported in a heterozygous state in four individuals with isolated growth hormone deficiency in whom a second variant was not identified (Lessi et al. 2001; Godi et al. 2009). Godi et al. (2009) also identified the p.Val10Gly variant in a heterozygous state in two unaffected family members. The variant was found in one of 1097 control individuals and is reported at a frequency of 0.00027 in the European American population of the Exome Sequencing Project, although this is based on two alleles in a region of poor sequencing coverage. Functional studies showed that the signal peptide is not cleaved in transfected CHO cells expressing the p.Val10Gly variant and that translocation of the protein to the cellular surface is hampered (Godi et al. 2009). Based on the evidence, the p.Val10Gly variant is considered to be of unknown significance but suspicious for pathogenicity for isolated growth hormone deficiency. This variant was observed by ICSL as part of a predisposition screen in an ostensibly healthy population. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.087

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.19

Cadd

Benign

Dann

Benign

0.97

DEOGEN2

Benign

0.32

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.79

FATHMM_MKL

Benign

0.17

LIST_S2

Benign

0.22

M_CAP

Benign

0.012

MetaRNN

Uncertain

0.51

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

MutationTaster

Benign

1.0

PrimateAI

Benign

0.36

PROVEAN

Benign

-1.9

REVEL

Benign

0.21

Sift

Uncertain

0.0010

Sift4G

Benign

0.063

Polyphen

0.81

Vest4

0.76

MVP

0.36

MPC

0.15

ClinPred

0.065

GERP RS

-0.24

Varity_R

0.18

gMVP

0.52

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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