Patent ID: 7022671

Claim:
A surfactant protein C (SP-C) having the amino acid sequence SEQ ID NO: 3 of the formula I 0 1 2 3 4 5 6 7 8 9 10 (I) (A) Gly Ile Pro B B Pro Val His Leu Lys 11 12 13 14 15 16 17 18 19 20 Arg Leu Leu Ile Val Val Val Val Val Val 21 22 23 24 25 26 27 28 29 30 Leu Ile Val Val Val Ile Val Gly Ala Leu 31 32 33 34 Leu C Gly Leu in which A is absent or Phe, B is Phe or Trp and C is Ile, Leu or Ser, wherein the amino acid at the carboxy terminus of the surfactant protein is esterified with an alcohol having 1–4 carbon atoms, and wherein the esterified surfactant protein C is isolated and purified, or a pharmacologically acceptable salt thereof.