DNA encoding fused di-alpha globins and use thereof
First Claim
1. A DNA molecule comprising a first DNA sequence encoding a non-naturally occurring genetically fused pseudooligomeric polypeptide comprising two or more alpha globin-like domains connected by one or more peptide bonds into a single unbranched polypeptide chain, said chain being capable of associating with beta globin and incorporating heme to form a hemoglobin-like protein.
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Accused Products
Abstract
The alpha subunits of hemoglobin, which in nature are formed as separate polypeptide chains which bind noncovalently to the beta subunits, are here provided in the form of the novel molecule di-alpha globin, a single polypeptide chain defined by connecting the two alpha subunits either directly via peptide bond or indirectly by a flexible amino acid or peptide linker. Di-alpha globin may be combined in vivo or in vitro with beta globin and heme to form hemoglobin. Di-alpha globin is expressed by recombinant DNA techniques. Di-beta globin may be similarly obtained.
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Citations
46 Claims
- 1. A DNA molecule comprising a first DNA sequence encoding a non-naturally occurring genetically fused pseudooligomeric polypeptide comprising two or more alpha globin-like domains connected by one or more peptide bonds into a single unbranched polypeptide chain, said chain being capable of associating with beta globin and incorporating heme to form a hemoglobin-like protein.
Specification