1.C.111.1.2
Regenerating islet-derived protein 3α, RegIIIα or Reg3A.  Also called Proliferation-induced Protein 34, PAP or HIP of 157 aas.  It is a C-type intestinal lectin and forms hexameric pores in Gram-positive bacterial membranes.  The 3-d x-ray structure is known (Mukherjee et al. 2014).  Lipopolysaccharides inhibit pore formation, and hence, Gram-negative bacteria are usually not susceptible to its killing action (Mukherjee et al. 2014).