chr7-20158349-A-AG

Position:

• chr7-20158349-A-AG

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_182762.4(MACC1):​c.2011_2012insC​(p.Leu671ProfsTer12) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MACC1 NM_182762.4 frameshift
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.28

Genes affected

MACC1 (HGNC:30215): (MET transcriptional regulator MACC1) MACC1 is a key regulator of the hepatocyte growth factor (HGF; MIM 142409)-HGF receptor (HGFR, or MET; MIM 164860) pathway, which is involved in cellular growth, epithelial-mesenchymal transition, angiogenesis, cell motility, invasiveness, and metastasis. Expression of MACC1 in colon cancer (MIM 114500) specimens is an independent prognostic indicator for metastasis formation and metastasis-free survival (Stein et al., 2009 [PubMed 19098908]).[supplied by OMIM, Mar 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MACC1	NM_182762.4	c.2011_2012insC	p.Leu671ProfsTer12	frameshift_variant	5/7	ENST00000400331.10	NP_877439.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MACC1	ENST00000400331.10	c.2011_2012insC	p.Leu671ProfsTer12	frameshift_variant	5/7	2	NM_182762.4	ENSP00000383185	P1
MACC1	ENST00000332878.8	c.2011_2012insC	p.Leu671ProfsTer12	frameshift_variant	3/5	1		ENSP00000328410	P1
MACC1	ENST00000589011.1	c.2011_2012insC	p.Leu671ProfsTer12	frameshift_variant	3/5	5		ENSP00000466864	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

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

LitVar

Other links and lift over

dbSNP: rs36106647; hg19: chr7-20197972;