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Cited by 277

The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.

Degradation of type IV (basement membrane) collagen by a proteinase isolated from human polymorphonuclear leukocyte granules.

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Mainardi, C.L., Dixit, S.N., Kang, A.H.·1980·Journal of Biological Chemistry

Abstract

A serine esterase with potent proteolytic activity against native bovine lens capsule type IV collagen was isolated and purified from extract of human polymorphonuclear leukocytes (PMN). The type IV collagenolytic activity co-purified with N-t-benzyloxycarbonyl-L-alanine nitroanilidase, and was inhibited by phenylmethanesulfonyl fluoride and N-acetyl-Ala-Ala-Ala-Ala chloromethyl ketone. In addition, the purified enzyme had elastolytic activity, reacted with a specific antibody to PMN elastase, and, therefore, appeared to be identical with this enzyme. A simple, reproducible assay for the detection of type IV collagenase activity using insoluble bovine anterior lens capsule collagen was defined. Sodium dodecyl sulfate polyacrylamide gel electrophoresis revealed that the enzyme released large molecular weight peptides (greater than 30,000) from the insoluble substrate. The enzyme was also active against native, pepsin-solubilized type IV collagen; five reaction products could be identified. These data suggest that PMN elastase may be involved in the degradation of basement membrane collagen in physiologic and pathologic states.

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Metadata

Authors
Mainardi, C. L., Dixit, S. N., & Kang, A. H.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1980-06
Volume
255
Issue
11
Pages
5435-5441
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1583126278
Cited by
277
References
20
FWCI
10.01
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Degradation of type IV (basement membrane) collagen by a proteinase isolated from human polymorphonuclear leukocyte granules. https://app.cochat.ai/papers/10.1016/s0021-9258(19)70805-9
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Mainardi, C. L., Dixit, S. N., & Kang, A. H. (1980). Degradation of type IV (basement membrane) collagen by a proteinase isolated from human polymorphonuclear leukocyte granules. Journal of Biological Chemistry. https://doi.org/10.1016/s0021-9258(19)70805-9

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