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Figure 3.
Fig. 3. Ribbon diagram of the model of the Icap1  PTB domain
complexed with  [1] peptide.
The PTB domain is shown as a yellow ribbon; the bound [1] peptide
is shown as a pink C trace. Side
chains of key residues are shown with bonds in the same color as
the backbone, and atoms are shown in green (carbon), and red
(oxygen). Similar to other PTB domains, the Icap1 PTB domain
shares a common pleckstrin homology domain fold with a compact
central sandwich
with a COOH-terminal -helix. The
[1] peptide
forms an anti-parallel -strand with
the [5] strand
of Icap1 PTB. Key
residues on the [1] peptide
(Val787, Asn792, and Tyr795) and Icap1 (Leu82,
Leu86, Leu135, Ile^138, Ile^139, and Tyr144) are shown with side
chains. This figure was prepared with Ribbons (50).
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