<Table> <Tr> <Th> polypeptide fragment </Th> <Th> alias </Th> <Th> abbreviation </Th> <Th> amino acid residues </Th> </Tr> <Tr> <Td> NPP </Td> <Td> </Td> <Td> </Td> <Td> 27--102 </Td> </Tr> <Tr> <Td> melanotropin gamma </Td> <Td> </Td> <Td> γ - MSH </Td> <Td> 77--87 </Td> </Tr> <Tr> <Td> potential peptide </Td> <Td> </Td> <Td> </Td> <Td> 105--134 </Td> </Tr> <Tr> <Td> corticotropin </Td> <Td> adrenocorticotropic hormone </Td> <Td> ACTH </Td> <Td> 138--176 </Td> </Tr> <Tr> <Td> melanotropin alpha </Td> <Td> melanocyte - stimulating hormone </Td> <Td> α - MSH </Td> <Td> 138--150 </Td> </Tr> <Tr> <Td> corticotropin - like intermediate peptide </Td> <Td> </Td> <Td> CLIP </Td> <Td> 156--176 </Td> </Tr> <Tr> <Td> lipotropin beta </Td> <Td> </Td> <Td> β - LPH </Td> <Td> 179--267 </Td> </Tr> <Tr> <Td> lipotropin gamma </Td> <Td> </Td> <Td> γ - LPH </Td> <Td> 179--234 </Td> </Tr> <Tr> <Td> melanotropin beta </Td> <Td> </Td> <Td> β - MSH </Td> <Td> 217--234 </Td> </Tr> <Tr> <Td> beta - endorphin </Td> <Td> </Td> <Td> </Td> <Td> 237--267 </Td> </Tr> <Tr> <Td> met - enkephalin </Td> <Td> </Td> <Td> </Td> <Td> 237--241 </Td> </Tr> </Table> <Tr> <Th> polypeptide fragment </Th> <Th> alias </Th> <Th> abbreviation </Th> <Th> amino acid residues </Th> </Tr> <Tr> <Td> NPP </Td> <Td> </Td> <Td> </Td> <Td> 27--102 </Td> </Tr> <Tr> <Td> melanotropin gamma </Td> <Td> </Td> <Td> γ - MSH </Td> <Td> 77--87 </Td> </Tr>

What is acth and what are its actions