Ltd4 is a lipid of Fatty Acyls (FA) class. Ltd4 is associated with abnormalities such as Inflammatory Bowel Diseases, Inflammatory disorder, Asthma, Pneumonia and Allergic asthma. The involved functions are known as inhibitors, Signal Transduction, Cell Survival, antagonists and Phosphorylation. Ltd4 often locates in Membrane, Tissue membrane, Protoplasm, Cytoplasmic matrix and membrane fraction. The associated genes with LTD4 are ALOX5 gene, UMOD gene, P4HTM gene, RAF1 gene and Homologous Gene. The related lipids are Lipopolysaccharides.