Unexpected crucial role of residue 225 in serine proteases.
Guinto, E.R., Caccia, S., Rose, T., Futterer, K., Waksman, G., Di Cera, E.(1999) Proc Natl Acad Sci U S A 96: 1852-1857
- PubMed: 10051558 
- DOI: 10.1073/pnas.96.5.1852
- Primary Citation of Related Structures:  
2THF, 1THP, 1B7X - PubMed Abstract: 
Residue 225 in serine proteases of the chymotrypsin family is Pro or Tyr in more than 95% of nearly 300 available sequences. Proteases with Y225 (like some blood coagulation and complement factors) are almost exclusively found in vertebrates, whereas pro ...