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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
24
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pubmed:dateCreated |
1990-9-27
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pubmed:abstractText |
The substrate specificity of the protease which generates mature human interleukin-1 beta (IL-1 beta) from pro-interleukin-1 beta was investigated using synthetic peptide substrates and recombinant pro-IL-1 beta. The requirement of an L-aspartate in the P-1 position was confirmed together with the need for a small hydrophobic residue in the P-1' position (Gly or Ala). It was shown that the enzyme can tolerate conservative substitutions in the P-2 and P-2' positions. We found little difference in the enzyme's ability to cleave denatured and native pro-IL-1 beta, indicating that tertiary structure recognition is not involved in binding. The enzyme did, however, require a peptide of more than six amino acids for cleavage to occur. These results conclusively demonstrate the unusual specificity of this protease.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
25
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pubmed:volume |
265
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
14526-8
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2201686-Amino Acid Sequence,
pubmed-meshheading:2201686-Humans,
pubmed-meshheading:2201686-Interleukin-1,
pubmed-meshheading:2201686-Kinetics,
pubmed-meshheading:2201686-Molecular Sequence Data,
pubmed-meshheading:2201686-Oligopeptides,
pubmed-meshheading:2201686-Peptide Hydrolases,
pubmed-meshheading:2201686-Protein Processing, Post-Translational,
pubmed-meshheading:2201686-Substrate Specificity
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pubmed:year |
1990
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pubmed:articleTitle |
Substrate specificity of the protease that processes human interleukin-1 beta.
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pubmed:affiliation |
Department of Protein Chemistry, Immunex Corporation, Seattle, Washington 98101.
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pubmed:publicationType |
Journal Article
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