Variant forms of urate oxidase and use thereof
First Claim
1. A method of reducing uric acid levels in a subject in need thereof, comprising administering a polyethylene glycol-uricase conjugate to the subject wherein the polyethylene glycol-uricase conjugate comprises a uricase comprising a mammalian uricase amino acid sequence truncated at the amino terminus, or the carboxy terminus, or both the amino and carboxy termini by 1-6 amino acids, and further comprising an amino acid substitution with threonine at position 7 (D7T), an amino acid substitution with threonine at position 46 (S46T), an amino acid substitution with lysine at position 291 (R291K) and an amino acid substitution with serine at position 301 (T301S), said truncation and amino acid substitution being relative to a naturally occurring pig uricase having an amino acid sequence of SEQ ID NO:
- 11.
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Accused Products
Abstract
Genetically modified proteins with uricolytic activity are described. Proteins comprising truncated urate oxidases and methods for producing them, including PEGylated proteins comprising truncated urate oxidase are described.
105 Citations
38 Claims
- 1. A method of reducing uric acid levels in a subject in need thereof, comprising administering a polyethylene glycol-uricase conjugate to the subject wherein the polyethylene glycol-uricase conjugate comprises a uricase comprising a mammalian uricase amino acid sequence truncated at the amino terminus, or the carboxy terminus, or both the amino and carboxy termini by 1-6 amino acids, and further comprising an amino acid substitution with threonine at position 7 (D7T), an amino acid substitution with threonine at position 46 (S46T), an amino acid substitution with lysine at position 291 (R291K) and an amino acid substitution with serine at position 301 (T301S), said truncation and amino acid substitution being relative to a naturally occurring pig uricase having an amino acid sequence of SEQ ID NO:
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38. A method of reducing uric acid levels in a subject in need thereof, comprising administering a uricase to the subject, wherein the uricase comprises a mammalian uricase amino acid sequence truncated at the amino terminus, or the carboxy terminus, or both the amino and carboxy termini by 1-6 amino acids, and further comprises an amino acid substitution with threonine at position 7 (D7T), an amino acid substitution with threonine at position 46 (S46T), an amino acid substitution with lysine at position 291 (R291K) and an amino acid substitution with serine at position 301 (T301S), said truncation and amino acid substitution being relative to a naturally occurring pig uricase having an amino acid sequence of SEQ ID NO:
- 11.
Specification