PMID: 2454670Jun 29, 1988Paper

New Achromobacter collagenase and its immunological relationship with a vertebrate collagenase

Biochimica Et Biophysica Acta
T T NguyenV Keil-Dlouha

Abstract

Evidence is presented that Achromobacter iophagus produces two distinct collagenases. Achromobacter collagenases A and B were separated by high-performance liquid chromatography from partially purified enzyme. The main collagenase, A (EC 3.4.24.8), which has been already described, was eluted in the region of molecular mass 110-90 kDa. A minor collagenase B eluted in the region of 320 kDa, although in SDS-gel electrophoresis the apparent molecular masses of its main active forms were estimated as 55 and 110 kDa. The specificities of collagenases A and B are different. Collagenase A splits in its synthetic substrate Pz-Pro-Leu-Gly-Pro-DArg the bond Leu-Gly, collagenase B does not split this substrate. Both collagenases split bonds Gln-Gly and Leu-Gly in synthetic peptides DNP-Pro-Gln-Gly-Ile-Ala-Gly-Gln-DArg-OH and DNP-Pro-Leu-Gly-Ile-Ala-Gly-DArg-NH2, respectively. Collagenase B is twice as active as A on the native collagen type I. Both enzymes are inhibited by EDTA. The antibodies raised against the human tooth collagenase specifically inhibited the collagenase B, but did not influence the activity of collagenase A. These results indicate, to our knowledge for the first time, an immunological relationship between a bacterial ...Continue Reading

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Aug 1, 1994·Comparative Biochemistry and Physiology. Biochemistry and Molecular Biology· Sakharov IYuA A Artyukov
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