chr17-63917375-C-G

Variant names:

• chr17-63917375-C-G
• rs1907385621
• NM_000515.5:c.588G>C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_000515.5(GH1):​c.588G>C​(p.Met196Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,690 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: GH1 NM_000515.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.65
• Publications: 0 publications found

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: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• isolated growth hormone deficiency type II

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
• 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

ENSG00000285947 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000515.5. 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
	GH1	NM_000515.5	MANE Select	c.588G>C	p.Met196Ile	missense	Exon 5 of 5	NP_000506.2
	GH1	NM_022559.4		c.543G>C	p.Met181Ile	missense	Exon 5 of 5	NP_072053.1	B1A4G7
	GH1	NM_022560.4		c.468G>C	p.Met156Ile	missense	Exon 4 of 4	NP_072054.1	P01241-5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GH1	ENST00000323322.10	TSL:1 MANE Select	c.588G>C	p.Met196Ile	missense	Exon 5 of 5	ENSP00000312673.5	P01241-1
	ENSG00000285947	ENST00000647774.1		c.864G>C	p.Met288Ile	missense	Exon 8 of 8	ENSP00000497443.1	A0A3B3ISS9
	GH1	ENST00000458650.6	TSL:1	c.543G>C	p.Met181Ile	missense	Exon 5 of 5	ENSP00000408486.2	P01241-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461690 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727154

African (AFR) AF: 0.00 AC: 0 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111862

Other (OTH) AF: 0.00 AC: 0 AN: 60378

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.86
BayesDel_addAF	Benign	0.0086	T
BayesDel_noAF	Benign	-0.23
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.79	D
Eigen	Benign	-0.12
Eigen_PC	Benign	-0.11
FATHMM_MKL	Uncertain	0.78	D
LIST_S2	Benign	0.85	T
M_CAP	Uncertain	0.089	D
MetaRNN	Uncertain	0.58	D
MetaSVM	Uncertain	-0.13	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		2.6
PrimateAI	Benign	0.40	T
PROVEAN	Uncertain	-2.5	D
REVEL	Uncertain	0.55
Sift	Uncertain	0.020	D
Sift4G	Benign	0.071	T
Polyphen		0.021	B
Vest4		0.27
MutPred		0.77		Gain of ubiquitination at K198 (P = 0.095)
MVP		0.89
MPC		0.16
ClinPred		0.98	D
GERP RS		2.6
Varity_R		0.53
gMVP		0.42
Mutation Taster		=81/19	polymorphism

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

Other links and lift over

dbSNP: rs1907385621; hg19: chr17-61994735;