Analysis of interatomic Contacts of Structural Units in PDB entry:
2EC9


Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
For CSU analysis of other PDB entry

This page provides analyses of contacts formed by:
For analysis of ligand-protein contacts, use: 3D structure can be seen in additional window with STING software for 2EC9 entry

There are 11 chains in PDB entry 2EC9 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
L
 ALA 1LEU 5
L
 LEU 8LEU 13
L
 ARG 15ARG 15
L
 CYS 17LYS 18
L
 GLN 21PHE 24
L
 ALA 27ARG 28
L
 ILE 30ALA 34
L
 ARG 36GLU 142
H
 ILE 16PRO 257
T
 THR 6ALA 80
U
 GLU 91MET 210
Residue contacts

1. List of contacts for up to 10 consecutive residues:
Chain ID from residue number to residue number


2. Detailed analyses of contacts for any single residue:
Residue number chain ID
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There are 14 helices in PDB entry 2EC9. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
L
12 17Right-handed alpha
Helix 2
2
L
23 32Right-handed alpha
Helix 3
3
L
33 45Right-handed alpha
Helix 4
4
L
86 88Right-handed 310
Helix 5
5
L
93 98Right-handed 310
Helix 6
6
H
55 60Right-handed 310
Helix 7
7
H
125 129Right-handed alpha
Helix 8
8
H
129 129Right-handed 310
Helix 9
9
H
164 170Right-handed alpha
Helix 10
10
H
234 243Right-handed alpha
Helix 11
11
T
59 64Right-handed alpha
Helix 12
12
U
101 106Right-handed alpha
Helix 13
13
U
143 148Right-handed alpha
Helix 14
14
U
149 151Right-handed 310
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There are 11 sheets in PDB entry 2EC9. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K,

There are 2 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
60 64first strand
Strand 2
L
67 71anti-parallel
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There are 2 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
76 77first strand
Strand 2
L
83 84anti-parallel
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There are 2 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
101 103first strand
Strand 2
L
111 113anti-parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
118 120first strand
Strand 2
L
127 129anti-parallel
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There are 8 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
20 21first strand
Strand 2
H
156 163anti-parallel
Strand 3
H
180 183anti-parallel
Strand 4
H
226 230anti-parallel
Strand 5
H
206 215anti-parallel
Strand 6
H
198 203anti-parallel
Strand 7
H
135 140anti-parallel
Strand 8
H
156 163anti-parallel
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There are 8 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
251 254first strand
Strand 2
H
81 91parallel
Strand 3
H
104 108anti-parallel
Strand 4
H
51 54anti-parallel
Strand 5
H
39 46anti-parallel
Strand 6
H
30 35anti-parallel
Strand 7
H
64 68anti-parallel
Strand 8
H
81 91anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
T
10 17first strand
Strand 2
T
20 26anti-parallel
Strand 3
T
56 58anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
T
46 52first strand
Strand 2
T
32 40anti-parallel
Strand 3
T
71 79anti-parallel
Strand 4
U
93 96anti-parallel
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There are 3 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
U
113 119first strand
Strand 2
U
122 127anti-parallel
Strand 3
U
174 178anti-parallel
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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
U
131 135first strand
Strand 2
U
140 142anti-parallel
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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
U
166 170first strand
Strand 2
U
152 158anti-parallel
Strand 3
U
186 192anti-parallel
Strand 4
U
208 209anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il