ALBUMIN VARIANTS
The present invention relates to variants of a parent albumin having altered plasma half-life compared with the parent albumin. The present invention also relates to fusion polypeptides and conjugates comprising said variant albumin.
1 . A variant of albumin comprising a substitution in a position corresponding to position 490 in the amino acid sequence of SEQ ID NO:2, wherein the substitution is selected from the group consisting of A490C,D,E,F,G,H,I,K,L,M,N,P,R,S,T,V,W, and Y, and wherein the variant has at least 90% sequence identity to the amino acid sequence of SEQ ID NO:2.
2 . The variant of claim 1 , wherein the variant has at least 98% sequence identity to the amino acid sequence of SEQ ID NO:2.
3 . The variant of claim 1 , wherein the variant consists of the amino acid sequence of SEQ ID NO:2 with a substitution at position 490.
4 . The variant of claim 1 , wherein the substitution is A490C.
5 . The variant of claim 1 , wherein the substitution is A490D.
6 . The variant of claim 1 , wherein the substitution is A490E.
7 . The variant of claim 1 , wherein the substitution is A490F.
8 . The variant of claim 1 , wherein the substitution is A490G.
9 . The variant of claim 1 , wherein the substitution is A490H.
10 . The variant of claim 1 , wherein the substitution is A490I.
11 . The variant of claim 1 , wherein the substitution is A490K.
12 . The variant of claim 1 , wherein the substitution is A490L.
13 . The variant of claim 1 , wherein the substitution is A490M.
14 . The variant of claim 1 , wherein the substitution is A490N.
15 . The variant of claim 1 , wherein the substitution is A490P.
16 . The variant of claim 1 , wherein the substitution is A490R.
17 . The variant of claim 1 , wherein the substitution is A490S.
18 . The variant of claim 1 , wherein the substitution is A490T.
19 . The variant of claim 1 , wherein the substitution is A490V.
20 . The variant of claim 1 , wherein the substitution is A490W.
21 . The variant of claim 1 , wherein the substitution is A490Y.