ISOLATION AND PURIFICATION OF A KRINGLE 5 FROM HUMAN PLASMINOGEN USING AH-SEPHAROSE
Our aim was to develop a method for isolation of human plasminogen kringle 5 possessing functional activity. The proposed method includes the following steps: hydrolysis of plasminogen with elastase, separation of mini-plasminogen from kringle fragments 1–3 and 4 on Lys-Sepharose, mini-plasminogen hydrolysis with pepsin, affinity chromatography on AH-Sepharose and polyacrilamide gel electrophoresis. We obtained the electrophoretically pure fragment of human plasminogen kringle 5 showing functional activity towards the ligands with high and low molecular mass. Weight yield was 3.8% that corresponds to 25.3% of the theoretically possible. It was established that affinity chromatography on AH-Sepharose was the sufficient step to isolate kringle 5 from mini-plasminogen hydrolysate with pepsin. This approach does not require additional purification steps while the ability of kringle 5 to bind specifically to AH-Sepharose demonstrates the functional activity of the kringle..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2014 |
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| Erschienen: |
2014 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:7 |
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| Enthalten in: |
Biotechnologia Acta - 7(2014), 4, Seite 35-42 |
| Sprache: |
Englisch ; Russisch ; Ukrainisch |
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| Beteiligte Personen: |
Kapustianenko L. G. [VerfasserIn] |
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| Links: |
doi.org [kostenfrei] |
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| Themen: |
Angiostatins |
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| doi: |
10.15407/biotech7.04.035 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
DOAJ004727827 |
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| 520 | |a Our aim was to develop a method for isolation of human plasminogen kringle 5 possessing functional activity. The proposed method includes the following steps: hydrolysis of plasminogen with elastase, separation of mini-plasminogen from kringle fragments 1–3 and 4 on Lys-Sepharose, mini-plasminogen hydrolysis with pepsin, affinity chromatography on AH-Sepharose and polyacrilamide gel electrophoresis. We obtained the electrophoretically pure fragment of human plasminogen kringle 5 showing functional activity towards the ligands with high and low molecular mass. Weight yield was 3.8% that corresponds to 25.3% of the theoretically possible. It was established that affinity chromatography on AH-Sepharose was the sufficient step to isolate kringle 5 from mini-plasminogen hydrolysate with pepsin. This approach does not require additional purification steps while the ability of kringle 5 to bind specifically to AH-Sepharose demonstrates the functional activity of the kringle. | ||
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