Function
Is able to inhibit all four classes of proteinases by a unique 'trapping' mechanism.
Similarity
Belongs to the protease inhibitor I39 (alpha-2-macroglobulin) family.
Sequence
MVPTILLSALLLHFTDVVAAEPRYILWVSSVVQRFSSEKACLHLLNLNESVSLSVTLEYDGSSTTIFDQPVDEGNFYACADFKVSQMSSEQLAFVALLVQGNTLKISERRSVAIAAEENATFVQTDTPVHKPGDTVHFRVVTLNIWLKPVDDLYPLITVQDPQSNVIFQWINVTTFRNITQLSFQLTPEPILGDYTIVIKTQSGTTVMDHFTVNRDVLPKFEVELTAPETITIADSQFQMVTCAKYTYGQPVQGKAQIKVCRELFSPAHCESNENEICEQFTVQLKDGCASHIINTKVFQLDRSGLFMTLNVNEVVTESGTGVQMSKTHSVFITSVLGTVSFENMDPFYRRGITYFGTLKFSGPNNTPLVDKLLQLELDGKPVGNYTTDENGEARFSINTSEIFGAQISLKAVYVRPRSCHRSSWLSPEYLDAYFSASRFYSQTSSFTKIILEPKQLPCDQEKMFSVLYSLNPEAYKEASDVTFFYLVMVRGGISRSGQKQVRVQAWNGNFSFPISINADLAPSADLFVYTLHPSGEIVADNVRLQIEKCFKNKVSINFSRDKDLPGSNTSVHLQAAPDSFCALRAVDKSALLLNHGQEMTPESVYFTLPYIHQYGYFYNGLNLDDQQAEPCIPQKDLFYNGLYYTPTGNIWDGDLSNLLSNMGLKIFTNLHYRKPEVCSSQENQPLLRTFDHPNERIMMYGGGAPPSSAFHDSVDSISHAKVAIKETVRTNFPRTWIWNLVSVDSSGTANVSFLVPDTITQWEASAFCVNGNAGFGISPKVSLQISQPFFVEVTSPFSVVRSEQSDMVVTVFNYLTTCVEISVQLEASENYEASINTQRNTDSEVLQAGEQKTYVWTIIPKTLGKVNVTVVATSKQSRACPNDASKEQDVHWKDTVVKTMLVEAEGIEKEATQSFLICPKGTKASKQTLLELPSNVVEGSVRSFVTIVGDILGVAMQNLESLLQMPYGCGEQNIAQLASDVYILDYLKATDQLTEELKSKAQRLLSNGYQNHLSFKNYDGSYDVFCQSNQEGSTWLSALSFKTVEKMKEYIFIEETVPKQTLIWLVKKQKSNGCFRRDEKHVDTAQEGREGDQEDIALTAYVVGVFLEVGLNASFPALRNGLYCLEEAFSNGVTNGYTQAILAYVFALAGKEQQAKSLLSILDKSATKTNNMIYWERDEKPETDNSPSFIPSALSGETEKTCYVLLAVLSQDTQDLDYASKIVQWLAQRMNSHGGFSAMQDTTVCLLALTQYMKLTGSNPQNTITLSSEESEEVFYVNRNKRLLVQHSKVSKGHQQYTVDVEGDGCSFIQATLRYNVPLPKEASGFSLSVKTGKSNSSDEFQTKFELTVTLTYTGARESSVTVLVDVKMLSGFTPVVSSTEELKFNSQVTKTDIKNGHVLFYLENVPKEATSLTFSIEQTNHVANIQPAPVTVYSYEKGEYAFDSYNINSISDSQ