Figure 2.
Fig. 2. The active site of ASV IN (catalytic core domain)
with bound zinc cation(s). A, 2F[o] F[c]
density map, contoured at 2.5 , showing
the bound Zn2+ hydrogen bonded only to the side chain of
Asp-121. The side chain of D64N is hydrogen bonded to Asn-160.
B, a previously determined structure of ASV IN, showing the
bound zinc cations hydrogen bonded to the side chains of Asp-64
and Asp-121.
The above figure is reprinted
by permission from the ASBMB:
J Biol Chem
(1998,
273,
32685-32689)
copyright 1998.
F[c]
density map, contoured at 2.5 
, showing
the bound Zn2+ hydrogen bonded only to the side chain of
Asp-121. The side chain of D64N is hydrogen bonded to Asn-160.
B, a previously determined structure of ASV IN, showing the
bound zinc cations hydrogen bonded to the side chains of Asp-64
and Asp-121.