Molecular cloning and identification of a putative PKC epsilon cDNA from Limulus polyphemus brain

Autor: Maria L Leite Browning, Zheng Cao, Robert F. Newkirk, James G. Townsel, Easton A. Reid, Guatum Chaudhuri, Yilun Wang
Rok vydání: 2002
Předmět:
Zdroj: Life sciences. 72(8)
ISSN: 0024-3205
Popis: The protein kinase C (PKC) family of enzymes is broadly distributed and has been implicated in a diverse array of cellular functions. Recent evidence supporting PKC involvement in the regulation of the Limulus choline cotransporter prompted us to clone PKC from a Limulus central nervous system (CNS) cDNA library. An Aplysia californica calcium independent PKC (Apl II) cDNA probe was used to screen the library and 5′ RACE SMART™ PCR was used to obtain the full-length sequence. The resulting cDNA, which included 5′ and 3′ nontranslation regions, was 4675 bp. Analysis of the encoded peptide sequence using the Swiss–prot database revealed at least 58% identity to PKCe. A commercial polyclonal antibody against PKCe was used in Western blots to positively label a 30 kDa protein from Limulus CNS and the expressed fusion protein of the encoded sequence. These data support the presence of a newly identified PKC-like homolog in Limulus which likely represents a PKCe equivalent.
Databáze: OpenAIRE