Claims
- 1. A protein that binds and inhibits human neutrophil elastase with a K.sub.i less than about 10 picomolar comprising an amino acid sequence picked from the set of sequences EpiNE1, EpiNE2, EpiNE3, EpiNE4, EpiNE5, EpiNE6, EpiNE7, EpiNE8, EPI-HNE-2, EPI-HNE-3, EPI-HNE-4, BITI-E7, BITI-E7-141, BITI-E7-1222, MUT1619, MUTP1, AMINO1, AMINO2, MUTQE, MUTT26A, EpiNE7.6, EpiNE7.8, EpiNE7.9, EpiNE7.31, EpiNE 7.11, EpiNE7.7, EpiNE7.4, EpiNE7.14, EpiNE7.5, EpiNE7.10, EpiNE7.20, EpiNE7.1, EpiNE7.16, EpiNE7.19, EpiNE7.12, EpiNE7.17, EpiNE7.21, EpiNE7.22, EpiNE7.23, EpiNE7.24, EpiNE7.25, EpiNE7.26, EpiNE7.27, EpiNE7.28, EpiNE7.29, EpiNE7.30, EpiNE7.32, EpiNE7.33, EpiNE7.36, EpiNE7.37, EpiNE7.38, EpiNE7.39, and EpiNE7.40.
- 2. A protein that binds and inhibits human neutrophil elastase with a K.sub.i less than about 10 picomolar that comprises an amino-acid sequence of at least about 51 amino acids that differs from an amino-acid sequence found in a protein of human origin by no more than about eight amino acids.
- 3. A protein that binds and inhibits hNE with an K.sub.i less than about 10 picomolar that comprises an amino-acid sequence derived from a parental Kunitz domain, said parental Kunitz domain having a K.sub.i for hNE greater than about 1.0 nanomolar and said derived Kunitz domain carrying at least the mutations X18F and a mutation picked from the set comprising X15V and X15I.
- 4. A protein as in claim 3 in which the derived Kunitz domain contains at least one mutation from the set comprising: X13P; X36G; X37G; and X12G.
- 5. A protein as in claim 4 that is secreted from the yeast Pichia pastoris.
- 6. A protein that binds and inhibits human neutrophil elastase with a K.sub.i less than 10 picomolar comprising an amino acid sequence that is substantially homologous to a sequence picked from the set of sequences consisting of EpiNE1, EpiNE2, EpiNE3, EpiNE4, EpiNE5, EpiNE6, EpiNE7, EpiNE8, EPI-HNE-2, EPI-HNE-3, EPI-HNE-4, BITI-E7, BITI-E7-141, BITI-E7-1222, MUT1619, MUTP1, AMINO1, AMINO2, MUTQE, MUTT26A, EpiNE7.6, EpiNE7.8, EpiNE7.9, EpiNE7.31, EpiNE 7.11, EpiNE7.7, EpiNE7.4, EpiNE7.14, EpiNE7.5, EpiNE7.10, EpiNE7.20, EpiNE7.1, EpiNE7.16, EpiNE7.19, EpiNE7.12, EpiNE7.17, EpiNE7.21, EpiNE7.22, EpiNE7.23, EpiNE7.24, EpiNE7.25, EpiNE7.26, EpiNE7.27, EpiNE7.28, EpiNE7.29, EpiNE7.30, EpiNE7.32, EpiNE7.33, EpiNE7.36, EpiNE7.37, EpiNE7.38, EpiNE7.39, and EpiNE7.40.
- 7. A protein as in claim 1 that is secreted from the yeast Pichia pastoris.
- 8. A protein as in claim 6 wherein the region of homology extends from at least the first cysteine to the last cysteine.
- 9. A protein as in claim 2 in which the number of differences is four or less.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation in part of application Ser. No. 08.133,031 filed 13 Oct. 1993, now abandoned and a continuation in part of Ser. No. 08/009,319 filed 26 Jan. 1993, now U.S. Pat. No. 5,403,484 which is a division of application filed Mar. 1, 1991 of Ladner, Guterman, Roberts, Markland, Ley and Kent Ser. No. 07/664,989 now U.S. Pat. No. 5,223,409 which is a continuation in part of Ladner, Guterman, Roberts and Markland, Ser. No. 07/487,063, file Mar. 2, 1990, now abandoned, which is a continuation in part of Ladner and Guterman, Ser. No. 07/240,160, filed Sep. 2, 1988, now abandoned. All of the foregoing applications are hereby incorporated by reference.
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Apr 1995 |
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Related Publications (1)
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Number |
Date |
Country |
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09319 |
Jan 1993 |
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Divisions (1)
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Number |
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Country |
Parent |
664989 |
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Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
133031 |
Oct 1993 |
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Parent |
487063 |
Mar 1990 |
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Parent |
240160 |
Sep 1988 |
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