Results 71 to 80 of about 4,906 (112)

A peptidyl dipeptidase-4 from Pseudomonas maltophilia: Purification and properties

Archives of Biochemistry and Biophysics, 1989
A peptidyl dipeptidase-4 (bacterial PDP-4) was purified to near homogeneity from a supernatant of Pseudomonas maltophilia extracellular medium. Bacterial PDP-4 is a single-polypeptide-chain enzyme, 82 kDa, with an alkaline isoelectric point. Peptides susceptible to hydrolysis by bacterial PDP-4 include angiotensin 1, bradykinin, enkephalins ...
Y, Dasarathy   +3 more
openaire   +2 more sources

A distinct peptidyl dipeptidase that degrades enkephalin: Exceptionally high activity in rabbit kidney

Life Sciences, 1981
Abstract Peptidyl dipeptidase activity distinct from the angiotensin converting enzyme (EC 3.4.15.1) was isolated from membrane fractions of rabbit kidney and lung. The enzyme cleaved Leu-enkephalin at the Gly-Phe bond, releasing Tyr-Gly-Gly and Phe-Leu, and also acted on bradykinin releasing the terminal dipeptide Phe-Arg.
M, Benuck, M J, Berg, N, Marks
openaire   +2 more sources

[Peptides--inhibitors of carboxycathepsin (peptidyl-dipeptidase A) and their role in clinical medicine].

Voprosy meditsinskoi khimii, 1984
Properties of the carboxycathepsin inhibitors teprotide, captopryl, enalacryl are considered. Presence of low molecular thermo- and acid stable carboxycathepsin inhibitors of peptide nature in blood serum and lymphocytes is discussed.
V N, Orekhovich   +4 more
openaire   +2 more sources

Preferential action of rat brain cathepsin B as a peptidyl dipeptidase converting pro-opioid oligopeptides

Archives of Biochemistry and Biophysics, 1986
Purified rat brain cathepsin B (EC 3.4.22.1) converted prodynorphins or proenkephalins to shorter active forms by the preferential removal of C-terminal dipeptides. The substrate affinities for Met-enkephalin-Arg-Phe or -Arg-Gly-Leu were Km 46 and 117 microM, and kcat/Km ratios were 67 and 115 microM-1, min-1, respectively.
N, Marks, M J, Berg, M, Benuck
openaire   +2 more sources

Purification and Characterization of a Peptidyl Dipeptidase Resembling Angiotensin Converting Enzyme from the Electric Organ of Torpedo marmorata

Journal of Neurochemistry, 1987
Abstract: The electric organ of Torpedo marmorata contains a membrane‐bound, captopril‐sensitive metallopepti‐dase that resembles mammalian angiotensin converting enzyme (peptidyl dipeptidase A; EC 3.4.15.1). The Torpedo enzyme has now been purified to apparent homogeneity from electric organ by a procedure involving affinity chro‐matography using the
A J, Turner   +3 more
openaire   +2 more sources

The isolation of a peptidyl dipeptidase from mouse brain cytosol that cleaves adrenocorticotropic hormone-(7–10) and des-tyrosine-enkephalins

Archives of Biochemistry and Biophysics, 1984
An enzyme present in mouse brain cytosol cleaves C-terminal dipeptides from substrates including ACTH-(7-10) (Phe-Arg-Trp-Gly), and des-Tyr-[Met]- and des-Tyr-[Leu]enkephalin. By means of ion-exchange chromatography and gel filtration, the peptidase was purified to a specific activity of 1570 times that of brain homogenate.
A, Neidle, J A, Kelly
openaire   +2 more sources

Conversion of angiotensin-1 to angiotensin-2 by a latent endothelial cell peptidyl dipeptidase that is not angiotensin-converting enzyme

Biochemical and Biophysical Research Communications, 1986
Cultured bovine pulmonary artery endothelial cells contain a second peptidyl dipeptidase, distinct from angiotensin-converting enzyme, present in an inactive form associated with a non-dialyzable inhibitor. Partial purification by glycine affinity chromatography separates enzyme from inhibitor to yield a preparation which hydrolyzes angiotensin-1 ...
J J, Lanzillo   +3 more
openaire   +2 more sources

Prodynorphin processing by rat CNS fractions and purified enzymes: Formation of Dynorphin A 1–8 by sulfhydryl-activated carboxypeptidase and peptidyl dipeptidase

Neurochemistry International, 1987
The conversion of selected prodynorphin fragments to form the octapeptide Dynorphin A 1-8 was studied in rat brain or spinal cord fractions, and the results compared to the action of purified carboxypeptidases and angiotension converting enzyme.
N, Marks   +5 more
openaire   +2 more sources

Membrane Localization of Endopeptidase‐24.11 and Peptidyl Dipeptidase A (Angiotensin Converting Enzyme) in the Pig Brain: A Study Using Subcellular Fractionation and Electron Microscopic Immunocytochemistry

Journal of Neurochemistry, 1992
Abstract: Brains from piglets were dissected and a block of tissue including the substantia nigra, globus pallidus, and entopeduncular nucleus was homogenized and then fractionated on discontinuous Percoll gradients. Ligand‐binding assays using (–)‐[3H]nicotine and [3H]quinuclidinyl benzilate served to delineate fractions containing nicotinic and ...
K, Barnes, A J, Turner, A J, Kenny
openaire   +2 more sources

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