Thoracic aortic aneurysm or dissection (GMS)

Gene: LTBP2

Red List (low evidence)

Submitted on behalf of the GMS Cardiology specialist group. The group has agreed that this gene should be Red on this panel.

Created: 18 Nov 2019, 4:33 p.m. | Last Modified: 18 Nov 2019, 4:33 p.m.

Panel Version: 0.35

Red List (low evidence)

Insufficient association with aortopathy.

Created: 2 Oct 2019, 4:13 p.m. | Last Modified: 2 Oct 2019, 4:13 p.m.

Panel Version: 0.32

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Phenotypes
?Weill-Marchesani syndrome 3, recessive 614819; Glaucoma 3, primary congenital, D 613086; Microspherophakia and/or megalocornea, with ectopia lentis and with or without secondary glaucoma 251750

Publications

• 20179738

Red List (low evidence)

614819 Weill-Marchesani syndrome 3 - short stature, myopia and aortic/pulmonary valve stenosis; Most HGMD variants associate with glaucoma

Created: 25 Mar 2019, 4:30 p.m.

Haji-Seyed-Javadi et al 2012 Hum Mutat 33:1182 PMID:22539340 identified homozygous c.3529G>A (p.Val1177Met) in a patient with Weill-Marchesani syndrome and c.1642C >T (p.Arg548*) in a patient with Marfan syndrome. They comment that p.Arg548* may be contributing to MFS-related phenotypes but is not responsible for the MFS in that patient (abstract only). Two other variants associated with MFS on HGMD but these are in unavailable conference abstract. Don't think sufficient evidence for this gene.

Created: 25 Mar 2019, 4:27 p.m.

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

On the Inherited Cardiac Condition Genes panel for Marfan syndrome reported in: Development of a Comprehensive Sequencing Assay for Inherited Cardiac Condition Genes, Pua et al, Journal of Cardiovascular Translational Research, online Feb 2016 (doi:10.​1007/​s12265-016-9673-5). The panel contains disease-causing, putatively pathogenic, research and phenocopy genes, and it is unclear from the publication whether this gene falls into the disease-causing category. No. of mutations indicated in supplemental table = 3.

Created: 19 Feb 2016, 2:41 p.m.