
Here I present: “Loeys-Dietz Syndrome”, Victor McKusick, Mendelian Inheritance in Man’, 1966. Loeys-Dietz综合征 (LDS2)。
INTRODUCTION.
Loeys-Dietz syndrome (LDS) is an aortic aneurysm syndrome with widespread systemic involvement.
Loeys-Dietz syndrome type-2 (LDS2) is autosomal dominant characterized by hypertelorism, cleft palate or bifid uvula, and arterial tortuosity. Arterial aneurysms are aggressive, with intracranial aneurysms leading to subarachnoid hemorrhage, and risk of aortic dissection is high.
There is evidence Loeys-Dietz syndrome type-2 (LDS2) is caused by heterozygous mutation in the TGFBR2 gene on cytogenetic location 3p24.1 and genomic coordinates 3:30,606,356-30,694,142. The screenshot of the TGFBR2 gene 87,878 bp (base pairs) of DNA sequence length is shown BELOW. Nine (9) other genes besides TGFBR2 in the 3p24.1 cytogenetic location are listed BENEATH.



| Coordinate | Symbol | Genomic Name |
| 3:27,715,953 | EOMES | Eomesodermin |
| 3:28,241,619 | CMC1 | C-X9-C motif-containing 1 |
| 3:28,321,047 | AZI2 | 5-azacytidine-induced protein 2 |
| 3:29,281,071 | RBMS3 | RNA-binding motif protein, 3 |
| 3:30,606,356 | TGFBR2 | Transform growth factor, beta receptor II |
| 3:30,726,197 | GADL1 | Glutamate decarboxylase-like 1 |
| 3:30,800,001 | SCLC1 | Small-cell cancer of lung |
| 3:31,532,925 | STT3B | STT3B, oligosaccharyltransferase complex |
| 3:31,660,825 | OSBPL10 | Oxysterol-binding protein-like protein 10 |
| 3:32,000,001 | HHV8S | Human herpesvirus 8, susceptibility to |

