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PMID: 6289298 Published · ppublish English Journal Article Research Support, U.S. Gov't, P.H.S.

Tissue-specific expression of mRNAs for dipeptidyl carboxypeptidase isoenzymes.

El-Dorry HA, Pickett CB, MacGregor JS, Soffer RL

Abstract

The molecular weight of newly synthesized dipeptidyl carboxypeptidase (angiotensin-converting enzyme; peptidyldipeptide hydrolase, EC 3.4.15.1) polypeptide primed in a reticulocyte lysate by poly(A)-containing RNA from mature rabbit testis was only about 65% that of the immunologically related species programmed by pulmonary RNA. Furthermore, in contrast to the pulmonary RNA-dependent product, the synthesis of this testicular protein was not directed by RNA from testes of immature animals. These findings indicate that a shorter polypeptide chain and pubertal expression--the structural and regulatory properties that distinguish the testicular dipeptidyl carboxypeptidase isozyme--are determined pretranslationally.

MeSH Terms
Animals Cell-Free System Gene Expression Regulation Isoenzymes/genetics Lung/enzymology Male Molecular Weight Organ Specificity Peptidyl-Dipeptidase A/genetics RNA, Messenger/genetics Rabbits Sexual Maturation Testis/enzymology
Chemicals
Isoenzymes RNA, Messenger Peptidyl-Dipeptidase A
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
El-Dorry H A
Pickett C B
MacGregor J S
Soffer R L
References (20)
20 references, click to expand
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
Published
1982-07-00
Pages
4295-7
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC346657
Subset
IM
Grants
NHLBI NIH HHS · 5R01 HL21394 · United States
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