chr17-63918895-A-T

Variant names:

• chr17-63918895-A-T
• rs2005172
• ENST00000647774.1:c.287-389T>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The ENST00000647774.1(ENSG00000285947):​c.287-389T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000946 in 1,585,310 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: 𝑓 0.000026 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000077 (0 hom.)
• Consequence: ENSG00000285947 ENST00000647774.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.721
• Publications: 22 publications found

Genes affected

ENSG00000285947 (HGNC:):

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

ACMG classification

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=-0.91).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000647774.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GH1	NM_000515.5	MANE Select	c.-119T>A		upstream_gene	N/A	NP_000506.2
	GH1	NM_022559.4		c.-119T>A		upstream_gene	N/A	NP_072053.1
	GH1	NM_022560.4		c.-119T>A		upstream_gene	N/A	NP_072054.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ENSG00000285947	ENST00000647774.1		c.287-389T>A		intron	N/A	ENSP00000497443.1
	GH1	ENST00000323322.10	TSL:1 MANE Select	c.-119T>A		upstream_gene	N/A	ENSP00000312673.5
	GH1	ENST00000458650.6	TSL:1	c.-119T>A		upstream_gene	N/A	ENSP00000408486.2

Frequencies

GnomAD3 genomes AF: 0.0000265 AC: 4 AN: 151188 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000983

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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

GnomAD4 exome AF: 0.00000767 AC: 11 AN: 1434122 Hom.: 0 AF XY: 0.00000561 AC XY: 4 AN XY: 712992

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

African (AFR) AF: 0.0000311 AC: 1 AN: 32128

American (AMR) AF: 0.00 AC: 0 AN: 42072

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25622

East Asian (EAS) AF: 0.0000255 AC: 1 AN: 39140

South Asian (SAS) AF: 0.00 AC: 0 AN: 84130

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52824

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5708

European-Non Finnish (NFE) AF: 0.00000823 AC: 9 AN: 1093168

Other (OTH) AF: 0.00 AC: 0 AN: 59330

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000407643), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome AF: 0.0000265 AC: 4 AN: 151188 Hom.: 0 Cov.: 32 AF XY: 0.0000406 AC XY: 3 AN XY: 73838

African (AFR) AF: 0.0000983 AC: 4 AN: 40684

American (AMR) AF: 0.00 AC: 0 AN: 15244

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3460

East Asian (EAS) AF: 0.00 AC: 0 AN: 5174

South Asian (SAS) AF: 0.00 AC: 0 AN: 4802

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10576

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67946

Other (OTH) AF: 0.00 AC: 0 AN: 2076

Alfa AF: 0.00 Hom.: 4690

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	7.6
DANN	Benign	0.16
PhyloP100		0.72
PromoterAI		0.011	Neutral

Splicing

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

Other links and lift over

dbSNP: rs2005172; hg19: chr17-61996255;