Analysis of interatomic Contacts of Structural Units in PDB entry:
1IKN


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 1IKN entry

There are 3 chains in PDB entry 1IKN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PRO 19LYS 303
C
 ALA 245VAL 357
D
 ASP 73SER 293
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 16 helices in PDB entry 1IKN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
123 135Right-handed 310
Helix 2
2
A
241 243Right-handed 310
Helix 3
3
C
300 302Right-handed 310
Helix 4
4
D
79 83Right-handed alpha
Helix 5
5
D
114 120Right-handed alpha
Helix 6
6
D
124 128Right-handed alpha
Helix 7
7
D
147 154Right-handed alpha
Helix 8
8
D
157 165Right-handed alpha
Helix 9
9
D
175 177Right-handed 310
Helix 10
10
D
186 192Right-handed alpha
Helix 11
11
D
196 205Right-handed alpha
Helix 12
12
D
220 226Right-handed alpha
Helix 13
13
D
230 237Right-handed alpha
Helix 14
14
D
253 256Right-handed 310
Helix 15
15
D
263 270Right-handed alpha
Helix 16
16
D
275 277Right-handed 310
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There are 7 sheets in PDB entry 1IKN. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

There are 3 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
110 113first strand
Strand 2
A
59 64anti-parallel
Strand 3
A
20 25anti-parallel
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There are 4 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
100 103first strand
Strand 2
A
71 77anti-parallel
Strand 3
A
158 166anti-parallel
Strand 4
A
172 174anti-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
A
89 91first strand
Strand 2
A
117 119anti-parallel
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There are 5 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
203 205first strand
Strand 2
A
284 289parallel
Strand 3
A
266 273anti-parallel
Strand 4
A
225 230anti-parallel
Strand 5
A
233 236anti-parallel
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There are 3 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
249 253first strand
Strand 2
A
211 216anti-parallel
Strand 3
A
196 199anti-parallel
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There are 5 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
257 259first strand
Strand 2
C
343 348parallel
Strand 3
C
325 333anti-parallel
Strand 4
C
278 285anti-parallel
Strand 5
C
291 295anti-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
C
308 312first strand
Strand 2
C
265 270anti-parallel
Strand 3
C
250 253anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il