Synthesis and metabolism of steroids in molluscs

There are at least four leukotriene receptors. Two receptors have been characterized that bind LTB 4 called BLT 1 and BLT 2 and two receptors that bind the peptidoleukotrienes (cysteinyl leukotrienes) called CysLT1 and CysLT2. The BLT 1 receptor is encoded by the LTB4R gene located on chromosome –q12 and is composed of 3 exons that generates two variant mRNAs that both encode a protein of 352 amino acids. The BLT 2 receptor is encoded by the LTB4R2 gene which is located on chromosome 14q12 and is composed of 2 exons generate two variant mRNAs that both encode a protein of 358 amino acids. The CysLT1 receptor is encoded by the CYSLTR1 gene located on the X chromosome (–) and is composed of 5 exons that generates four variant mRNAs, each of which encode the same 337 amino acid protein. The CysLT2 receptor is encoded by the CYSLTR2 gene located on chromosome and contains a single exon encoding a protein of 346 amino acids.

Falciform ligament – attaches the anterior surface of the liver to the anterior abdominal wall. The free edge of this ligament contains the ligamentum teres, a remnant of the umbilical vein.

  • Coronary ligaments (anterior and posterior folds)teac  – attach the superior surface of the liver to the diaphragm .
  • Triangular ligaments (left and right) – attach the superior surface of the liver to the diaphragm.
  • Lesser omentum – consists of the hepatoduodenal ligament (extends from the duodenum to the liver), and the hepatogastric ligament (extends from the stomach to the liver).
In addition to these supporting ligaments, the posterior surface of the liver is secured to the inferior vena cava by hepatic veins and fibrous tissue.

Synthesis and metabolism of steroids in molluscs

synthesis and metabolism of steroids in molluscs

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