Recombinant alveolar surfactant protein
US5430020A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1993 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Jun 9, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2830/85
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The complete coding sequences and amino acid sequences for both canine and human 32K alveolar surfactant proteins (ASP) are disclosed; clones encoding variants of the SP-18 and SP-5 forms of human protein are disclosed. Methods and vectors for obtaining these proteins in recombinant form are also described. An improved method for purification of the 32K protein takes advantage of its carbohydrate affinity. Pharmaceutical compositions in the treatment of respiratory deficiency syndrome use the 10K proteins with or without the 32K form. Synthetic peptides based on the human SP-5 protein are provided as well, which peptides show significant ASP activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.