NM_000301.5:c.49+18delT

Variant names:

• chr6-160702364-GT-G
• rs745627917
• NM_000301.5:c.49+18delT

Variant summary

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

The NM_000301.5(PLG):​c.49+18delT variant causes a intron 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.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: PLG NM_000301.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.05
• Publications: 0 publications found

Genes affected

PLG (HGNC:9071): (plasminogen) The plasminogen protein encoded by this gene is a serine protease that circulates in blood plasma as an inactive zymogen and is converted to the active protease, plasmin, by several plasminogen activators such as tissue plasminogen activator (tPA), urokinase plasminogen activator (uPA), kallikrein, and factor XII (Hageman factor). The conversion of plasminogen to plasmin involves the cleavage of the peptide bond between Arg-561 and Val-562. Plasmin cleavage also releases the angiostatin protein which inhibits angiogenesis. Plasmin degrades many blood plasma proteins, including fibrin-containing blood clots. As a serine protease, plasmin cleaves many products in addition to fibrin such as fibronectin, thrombospondin, laminin, and von Willebrand factor. Plasmin is inactivated by proteins such as alpha-2-macroglobulin and alpha-2-antiplasmin in addition to inhibitors of the various plasminogen activators. Plasminogen also interacts with plasminogen receptors which results in the retention of plasmin on cell surfaces and in plasmin-induced cell signaling. The localization of plasminogen on cell surfaces plays a role in the degradation of extracellular matrices, cell migration, inflamation, wound healing, oncogenesis, metastasis, myogenesis, muscle regeneration, neurite outgrowth, and fibrinolysis. This protein may also play a role in acute respiratory distress syndrome (ARDS) which, in part, is caused by enhanced clot formation and the suppression of fibrinolysis. Compared to other mammals, the cluster of plasminogen-like genes to which this gene belongs has been rearranged in catarrhine primates. [provided by RefSeq, May 2020]

PLG Gene-Disease associations (from GenCC):

• hypoplasminogenemia

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet
• angioedema, hereditary, 4

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

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_000301.5. 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
	PLG	NM_000301.5	MANE Select	c.49+18delT		intron	N/A	NP_000292.1	P00747
	PLG	NM_001168338.1		c.49+18delT		intron	N/A	NP_001161810.1	Q5TEH5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PLG	ENST00000308192.14	TSL:1 MANE Select	c.49+12delT		intron	N/A	ENSP00000308938.9	P00747
	PLG	ENST00000366924.6	TSL:1	c.49+12delT		intron	N/A	ENSP00000355891.2	Q5TEH5
	PLG	ENST00000872438.1		c.49+12delT		intron	N/A	ENSP00000542497.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1431486 Hom.: 0 Cov.: 27 AF XY: 0.00 AC XY: 0 AN XY: 712756

African (AFR) AF: 0.00 AC: 0 AN: 32424

American (AMR) AF: 0.00 AC: 0 AN: 43426

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25548

East Asian (EAS) AF: 0.00 AC: 0 AN: 39604

South Asian (SAS) AF: 0.00 AC: 0 AN: 82848

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52396

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4040

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1092166

Other (OTH) AF: 0.00 AC: 0 AN: 59034

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-1.0

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: rs745627917; hg19: chr6-161123396;