Xanthosine is produced by guanine-free mutants of bacteria e. g. Bacillus subtilis, Aerobacter aerogenes.

Apraglutide TFA (FE 203799 TFA), a synthetic 33-amino-acid peptide and a long-acting GLP-2 analogue, enhances adaptation and linear intestinal growth in a neonatal piglet model of short bowel syndrome with total resection of the ileum.

ATI-2341 is an effective functionally selective allosteric agonist for the c-x-c chemokine receptor type 4 (CXCR4), which ACTS as a biased ligand in favor of G G G G G 1 activation instead of G G G G G 13.ATI-2341 activates the inhibitory heterotrimer G protein (Gi) to promote inhibition of cAMP production and induce calcium mobilization.ATI-2341 is an effective mobilization agent for myeloid polymorphonuclear neutrophils (PMNs) and hematopoietic stem and progenitor cells (HSPCs).