Analysis of interatomic Contacts of Structural Units in PDB entry:
4IK0


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 4IK0 entry

There are 2 chains in PDB entry 4IK0 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1LEU 274
B
 MET 1HIS 275
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 11 helices in PDB entry 4IK0. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
26 35Right-handed alpha
Helix 2
2
A
76 87Right-handed alpha
Helix 3
3
A
124 128Right-handed 310
Helix 4
4
A
171 181Right-handed alpha
Helix 5
5
A
217 231Right-handed alpha
Helix 6
6
B
26 35Right-handed alpha
Helix 7
7
B
76 87Right-handed alpha
Helix 8
8
B
124 128Right-handed 310
Helix 9
9
B
166 170Right-handed 310
Helix 10
10
B
171 181Right-handed alpha
Helix 11
11
B
217 231Right-handed alpha
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There are 5 sheets in PDB entry 4IK0. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

There are 6 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
139 143first strand
Strand 2
B
146 154anti-parallel
Strand 3
B
158 163anti-parallel
Strand 4
B
190 198parallel
Strand 5
B
201 208anti-parallel
Strand 6
B
212 213anti-parallel
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There are 10 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
212 213first strand
Strand 2
B
201 208anti-parallel
Strand 3
B
237 242parallel
Strand 4
B
245 251anti-parallel
Strand 5
B
258 262anti-parallel
Strand 6
B
114 117anti-parallel
Strand 7
B
102 108anti-parallel
Strand 8
B
94 99anti-parallel
Strand 9
B
58 64parallel
Strand 10
B
69 70anti-parallel
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There are 12 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
69 70first strand
Strand 2
B
58 64anti-parallel
Strand 3
B
44 49anti-parallel
Strand 4
B
11 17parallel
Strand 5
B
2 8anti-parallel
Strand 6
B
265 271anti-parallel
Strand 7
A
265 272anti-parallel
Strand 8
A
2 8anti-parallel
Strand 9
A
11 17anti-parallel
Strand 10
A
44 49parallel
Strand 11
A
58 64anti-parallel
Strand 12
A
69 70anti-parallel
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There are 13 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
69 70first strand
Strand 2
A
58 64anti-parallel
Strand 3
A
94 99parallel
Strand 4
A
102 108anti-parallel
Strand 5
A
114 117anti-parallel
Strand 6
A
258 262anti-parallel
Strand 7
A
245 251anti-parallel
Strand 8
A
237 242anti-parallel
Strand 9
A
201 208parallel
Strand 10
A
190 198anti-parallel
Strand 11
A
158 164parallel
Strand 12
A
146 154anti-parallel
Strand 13
A
139 143anti-parallel
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There are 6 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
212 214first strand
Strand 2
A
201 208anti-parallel
Strand 3
A
190 198anti-parallel
Strand 4
A
158 164parallel
Strand 5
A
146 154anti-parallel
Strand 6
A
139 143anti-parallel
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