메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
Chimeric genes coding for prepro region of yeast a-factor and anglerfish SRIF were expressed in rat GH 3cells to determine whether yeast signals could reg-ulate hormone processing in mammalian cells. Wereport that nascent hybrid polypeptides were effi-ciently targeted to ER, where cleavage of signal pep-tides and core glycosylation occured, and werelocalized mainly in Golgi. These data indicate thatprepro region of yeast a-factor functions in sortingmolecules to secretory pathway in mammalian cells.A hybrid construct with a mutated signal peptideunderwent similar ER translocation, whereas such amutation resulted in defective translocation in yeast(Cheong et al., 1997). This difference may be due tothe differences in ER translocation betwen yeastand mammalian cells, i.e., posttranslational versuscotranslational translocation. Processing and secre-tion of metabolically labeled hybrid propeptides tomature SRIF peptides were assessed by HPLC. Whenpulse-labeled cells were chased for up to 2 h, intrac-ellular propeptides disappeared with a half-life ofapproximately 25 min, showing that ~68% of initiallysynthesized propeptides were secreted constitu-tively. About 22% of SRIF-related products were pro-teolytically processed to mature SRIF, of which 38.7%were stored intracellularly with a half-life of ~2 h. Inaddition, immunocytochemical localization showedthat a small proportion of SRIF molecules accumu-lated in secretory vesicles. All these results suggestthat yeast prepropeptide could direct hybrid precur-sors to translocate into ER lumen and transitthrough secretory pathway to the distal elements ofGolgi compartment, but could process and target itless efficiently to downstream in rat endocrine cells.

목차

등록된 정보가 없습니다.

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0