PDBsum entry 1a4b Go to PDB code:  Tunnel analysis for: 1a4b calculated with MOLE 2.0 PDB id 1a4b Tunnels calculated on whole structure Tunnels calculated excluding ligands View options MOLEonline 2.0 manipulation and visualization with HETATM: without HETATM:   1 tunnel, coloured by tunnel radius 2 tunnels, coloured by tunnel radius 2 tunnels, coloured as in list below Tunnels are interior spaces connected with the protein surrounding. Only channels longer than 15 Å are shown. Tunnels Free R Length HPathy HPhob Polar Rel Mut Residue..type Ligands Radius 1 1.46 1.48 15.4 -0.35 0.32 6.2 77 0 1 1 3 2 0 0   2 1.40 1.40 16.2 -0.20 0.28 4.7 74 0 1 1 3 3 0 0   Residue-type_colouring Positive Negative Neutral Aliphatic Aromatic Pro & Gly Cysteine H,K,R D,E S,T,N,Q A,V,L,I,M F,Y,W P,G C Acknowledgement Tunnels were calculated by MOLE 2.0 program version 2.5.13.11.08 and visualized using Pymol 0.97rc.