Genetic Variant GH1:c.10+32T>A (chr17-63918735-A-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_000515.5(GH1):c.10+32T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,500 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GH1
NM_000515.5 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.222

Publications

0 publications found

Variant links:

Genes affected

GH1 (HGNC:4261): (growth hormone 1) The protein encoded by this gene is a member of the somatotropin/prolactin family of hormones which play an important role in growth control. The gene, along with four other related genes, is located at the growth hormone locus on chromosome 17 where they are interspersed in the same transcriptional orientation; an arrangement which is thought to have evolved by a series of gene duplications. The five genes share a remarkably high degree of sequence identity. Alternative splicing generates additional isoforms of each of the five growth hormones, leading to further diversity and potential for specialization. This particular family member is expressed in the pituitary but not in placental tissue as is the case for the other four genes in the growth hormone locus. Mutations in or deletions of the gene lead to growth hormone deficiency and short stature. [provided by RefSeq, Jul 2008]

GH1 Gene-Disease associations (from GenCC):

isolated growth hormone deficiency type IA
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
isolated growth hormone deficiency type II
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
isolated growth hormone deficiency type IB
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
short stature due to growth hormone qualitative anomaly
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

GH1 links:

ENSG00000285947 (HGNC:):

ENSG00000285947 links:

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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 (BayesDel_noAF=-0.9).

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
GH1	NM_000515.5 link	c.10+32T>A	intron_variant	Intron 1 of 4	ENST00000323322.10	NP_000506.2	P01241-1B1A4G6
GH1	NM_022559.4 link	c.10+32T>A	intron_variant	Intron 1 of 4		NP_072053.1	P01241-2B1A4G7
GH1	NM_022560.4 link	c.10+32T>A	intron_variant	Intron 1 of 3		NP_072054.1	P01241-5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GH1	ENST00000323322.10 link	c.10+32T>A		intron_variant	Intron 1 of 4	1	NM_000515.5	ENSP00000312673.5		P01241-1
ENSG00000285947	ENST00000647774.1 link	c.287-229T>A		intron_variant	Intron 4 of 7			ENSP00000497443.1		A0A3B3ISS9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461500

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727042

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33462

American (AMR)

AF:

0.0000224

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5646

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111822

Other (OTH)

AF:

0.00

AC:

AN:

60358

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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 v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.90

CADD

Benign

0.55

(source)

DANN

Benign

0.24

PhyloP100

-0.22

PromoterAI

-0.032

Neutral

(source)

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over