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 492 in the amino acid sequence of SEQ ID NO:2, wherein the substitution is selected from the group consisting of E492A,C,D,F,G,H,I,K,L,M,N,P,Q,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 492.
4 . The variant of claim 1 , wherein the substitution is E492A.
5 . The variant of claim 1 , wherein the substitution is E492C.
6 . The variant of claim 1 , wherein the substitution is E492D.
7 . The variant of claim 1 , wherein the substitution is E492F.
8 . The variant of claim 1 , wherein the substitution is E492G.
9 . The variant of claim 1 , wherein the substitution is E492H.
10 . The variant of claim 1 , wherein the substitution is E492I.
11 . The variant of claim 1 , wherein the substitution is E492K.
12 . The variant of claim 1 , wherein the substitution is E492L.
13 . The variant of claim 1 , wherein the substitution is E492M.
14 . The variant of claim 1 , wherein the substitution is E492N.
15 . The variant of claim 1 , wherein the substitution is E492P.
16 . The variant of claim 1 , wherein the substitution is E492Q.
17 . The variant of claim 1 , wherein the substitution is E492R.
18 . The variant of claim 1 , wherein the substitution is E492S.
19 . The variant of claim 1 , wherein the substitution is E492T.
20 . The variant of claim 1 , wherein the substitution is E492V.
21 . The variant of claim 1 , wherein the substitution is E492W.
22 . The variant of claim 1 , wherein the substitution is E492Y.