摘要:
A novel immune system mediator, termed pleiotropic immune factor (PIF) is provided which enhances the secretion of immunoglobulin, particularly IgA, and which promotes the growth and differentiation of eosinophils. The human PIF amino acid sequence is disclosed, and a synthetic gene is provided for cassette mutagenesis in a pcD plasmid. Mutant and native human PIFs are expressed in COS 7 monkey cells.
摘要:
Antibodies to mammalian Interleukin-4 and muteins are provided, especially to native human IL-4s, as well as peptides useful as antigens in their production. Nucleic acids are disclosed which are capable of coding for the mammalian IL-4s and their muteins.
摘要:
Antibodies to mammalian Interleukin-4 and muteins are provided, especially to native human IL-4s, as well as peptides useful as antigens in their production. Nucleic acids are disclosed which are capable of coding for the mammalian IL-4s and their muteins.
摘要:
A novel immune system mediator, termed pleiotropic immune factor (PIF) is provided which enhances the secretion of immunoglobulin, particularly IgA, and which promotes the growth and differentiation of eosinophils. The human PIF amino acid sequence is disclosed, and a synthetic gene is provided for cassette mutagenesis in a pcD plasmid. Mutant and native human PIFs are expressed in COS 7 monkey cells.
摘要:
Mammalian proteins and muteins thereof, designated interleukin-4s (IL-4s), are provided which exhibit both B cell growth factor activity and T cell growth factor activity. Compounds of the invention include native human and murine IL-4s, muteins thereof, and nucleic acids which are effectively homologous to disclosed cDNAs, and/or which are capable of coding for mammalian IL-4s and their muteins.