Genetic Variant NM_000823.4:c.37G>T (chr7-30964105-G-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000823.4(GHRHR):c.37G>T(p.Val13Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000716 in 1,397,558 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V13M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

GHRHR
NM_000823.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.421

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

isolated growth hormone deficiency type IB
Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Laboratory for Molecular Medicine
isolated growth hormone deficiency, type 4
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

GHRHR links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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 (MetaRNN=0.035288483).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000823.4. 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
	GHRHR	NM_000823.4	MANE Select	c.37G>T	p.Val13Leu	missense	Exon 1 of 13	NP_000814.2	A0A090N8Y6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GHRHR	ENST00000326139.7	TSL:1 MANE Select	c.37G>T	p.Val13Leu	missense	Exon 1 of 13	ENSP00000320180.2	Q02643
	GHRHR	ENST00000466427.1	TSL:5	n.285-4729G>T		intron	N/A

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

154714

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.16e-7

AC:

AN:

1397558

Hom.:

Cov.:

AF XY:

0.00000145

AC XY:

AN XY:

689372

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

31592

American (AMR)

AF:

0.00

AC:

AN:

35704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35734

South Asian (SAS)

AF:

0.00

AC:

AN:

79226

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47658

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5554

European-Non Finnish (NFE)

AF:

9.27e-7

AC:

AN:

1078938

Other (OTH)

AF:

0.00

AC:

AN:

57970

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.053

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.71

CADD

Benign

0.013

(source)

DANN

Benign

0.26

DEOGEN2

Benign

0.10

Eigen

Benign

-1.7

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0021

LIST_S2

Benign

0.57

M_CAP

Benign

0.0026

MetaRNN

Benign

0.035

MetaSVM

Benign

-0.95

MutationAssessor

Benign

-2.4

PhyloP100

-0.42

PrimateAI

Benign

0.32

PROVEAN

Benign

0.27

REVEL

Benign

0.036

Sift

Benign

1.0

Sift4G

Benign

0.97

Polyphen

0.0

Vest4

0.046

MutPred

0.38

Loss of sheet (P = 0.0357)

MVP

0.13

MPC

0.088

ClinPred

0.030

GERP RS

-2.5

PromoterAI

-0.016

Neutral

(source)

Varity_R

0.028

gMVP

0.20

Mutation Taster

=94/6

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over