Site selective acylation
US7514222B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2002 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Feb 11, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K1/1072
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Disclosed are novel polypeptides of a four helix bundle formed of two dimerized helix-loop-helix motifs, wherein either both have a sequence according to SEQ. ID No. 1, SEQ. ID No. 2, SEQ. ID No. 3, SEQ. ID No. 4, SEQ. ID No. 5, or SEQ. ID No. 7, or one has a sequence according to SEQ. ID No. 6, and the other one has a sequence according to SEQ. ID No. 1, SEQ. ID No. 2, SEQ. ID No. 3, SEQ. ID No. 4, SEQ. ID No. 5 or SEQ. ID No. 7. Also disclosed is a method for site-selective acylation of a folded polypeptide or protein based on the use of a four helix bundle formed of two dimerized helix-loop-helix motifs folded in an antiparallel mode, said helix-loop-helix motifs comprising amino acid residues in a heptad repeat pattern (a b c d e f g)n, wherein all but 1-3 of said amino acid residues in positions a and d are non-polar and wherein said 1-3 amino acid residues in positions a and d that are non-polar, are selected from the group consisting of lysine, ornithine, diaminobutyric acid and homolysine, wherein said amino acid residues in positions a and d form a hydrophobic core, wherein the polypeptide and/or protein to be acylated is placed in an aqueous solution and an acylation agen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.