chr7-81706144-C-A

Variant names:

• chr7-81706144-C-A
• rs5745752
• NM_000601.6:c.1757+143G>T

Variant summary

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

The NM_000601.6(HGF):​c.1757+143G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000169 in 592,086 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: 31)
  • Exomes 𝑓: 0.0000017 (0 hom.)
• Consequence: HGF NM_000601.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.49
• Publications: 0 publications found

Genes affected

HGF (HGNC:4893): (hepatocyte growth factor) This gene encodes a protein that binds to the hepatocyte growth factor receptor to regulate cell growth, cell motility and morphogenesis in numerous cell and tissue types. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate alpha and beta chains, which form the mature heterodimer. This protein is secreted by mesenchymal cells and acts as a multi-functional cytokine on cells of mainly epithelial origin. This protein also plays a role in angiogenesis, tumorogenesis, and tissue regeneration. Although the encoded protein is a member of the peptidase S1 family of serine proteases, it lacks peptidase activity. Mutations in this gene are associated with nonsyndromic hearing loss. [provided by RefSeq, Nov 2015]

HGF Gene-Disease associations (from GenCC):

• autosomal recessive nonsyndromic hearing loss 39

  Inheritance: AR, Unknown Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
• nonsyndromic genetic hearing loss

  Inheritance: AR Classification: MODERATE Submitted by: ClinGen
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000300407 (HGNC:):

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=-0.88).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000601.6. 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
	HGF	NM_000601.6	MANE Select	c.1757+143G>T		intron	N/A	NP_000592.3
	HGF	NM_001010932.3		c.1742+143G>T		intron	N/A	NP_001010932.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HGF	ENST00000222390.11	TSL:1 MANE Select	c.1757+143G>T		intron	N/A	ENSP00000222390.5
	HGF	ENST00000457544.7	TSL:1	c.1742+143G>T		intron	N/A	ENSP00000391238.2
	ENSG00000300407	ENST00000771413.1		n.117+5616C>A		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000169 AC: 1 AN: 592086 Hom.: 0 AF XY: 0.00000316 AC XY: 1 AN XY: 316046

African (AFR) AF: 0.00 AC: 0 AN: 15432

American (AMR) AF: 0.00 AC: 0 AN: 28848

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 18106

East Asian (EAS) AF: 0.00 AC: 0 AN: 32356

South Asian (SAS) AF: 0.0000171 AC: 1 AN: 58324

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 37882

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3530

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 366408

Other (OTH) AF: 0.00 AC: 0 AN: 31200

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	0.045
DANN	Benign	0.38
PhyloP100		-1.5

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: rs5745752; hg19: chr7-81335460;