Analysis of interatomic Contacts of Structural Units in PDB entry:
2IO4


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 2IO4 entry

There are 4 chains in PDB entry 2IO4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1LEU 249
B
 MET 1ASP 246
C
 MET 1LEU 249
D
 MET 1ALA 245
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 22 helices in PDB entry 2IO4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 20Right-handed alpha
Helix 2
2
A
55 57Right-handed 310
Helix 3
3
A
71 81Right-handed alpha
Helix 4
4
A
139 154Right-handed alpha
Helix 5
5
A
202 211Right-handed alpha
Helix 6
6
B
9 20Right-handed alpha
Helix 7
7
B
55 57Right-handed 310
Helix 8
8
B
73 81Right-handed alpha
Helix 9
9
B
137 148Right-handed alpha
Helix 10
10
B
199 204Right-handed alpha
Helix 11
11
B
205 211Right-handed 310
Helix 12
12
C
8 20Right-handed alpha
Helix 13
13
C
55 57Right-handed 310
Helix 14
14
C
71 81Right-handed alpha
Helix 15
15
C
139 154Right-handed alpha
Helix 16
16
C
202 211Right-handed alpha
Helix 17
17
D
8 23Right-handed alpha
Helix 18
18
D
73 81Right-handed alpha
Helix 19
19
D
137 148Right-handed alpha
Helix 20
20
D
199 204Right-handed alpha
Helix 21
21
D
205 211Right-handed 310
Helix 22
22
D
232 234Right-handed 310
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There are 12 sheets in PDB entry 2IO4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

There are 5 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
59 62first strand
Strand 2
A
2 6anti-parallel
Strand 3
A
87 93anti-parallel
Strand 4
A
97 104anti-parallel
Strand 5
A
110 116anti-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
A
118 120first strand
Strand 2
A
66 70anti-parallel
Strand 3
A
26 30anti-parallel
Strand 4
A
34 40anti-parallel
Strand 5
A
46 53anti-parallel
Strand 6
A
240 245anti-parallel
Strand 7
A
229 234anti-parallel
Strand 8
A
219 223anti-parallel
Strand 9
A
134 138anti-parallel
Strand 10
A
189 192anti-parallel
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There are 5 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
186 187first strand
Strand 2
A
177 183parallel
Strand 3
A
165 170anti-parallel
Strand 4
A
156 162anti-parallel
Strand 5
A
197 201anti-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
B
60 62first strand
Strand 2
B
2 6anti-parallel
Strand 3
B
88 93anti-parallel
Strand 4
B
97 103anti-parallel
Strand 5
B
108 113anti-parallel
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There are 9 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
67 72first strand
Strand 2
B
25 31anti-parallel
Strand 3
B
34 40anti-parallel
Strand 4
B
46 53anti-parallel
Strand 5
B
236 241anti-parallel
Strand 6
B
223 230anti-parallel
Strand 7
B
214 220anti-parallel
Strand 8
B
131 136anti-parallel
Strand 9
B
187 190anti-parallel
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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
173 178first strand
Strand 2
B
162 168anti-parallel
Strand 3
B
153 159anti-parallel
Strand 4
B
194 198anti-parallel
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There are 5 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
59 62first strand
Strand 2
C
2 6anti-parallel
Strand 3
C
87 94anti-parallel
Strand 4
C
97 104anti-parallel
Strand 5
C
111 116anti-parallel
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There are 10 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
118 120first strand
Strand 2
C
66 70anti-parallel
Strand 3
C
26 30anti-parallel
Strand 4
C
34 40anti-parallel
Strand 5
C
46 53anti-parallel
Strand 6
C
240 245anti-parallel
Strand 7
C
229 234anti-parallel
Strand 8
C
219 223anti-parallel
Strand 9
C
134 138anti-parallel
Strand 10
C
189 192anti-parallel
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There are 5 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
186 187first strand
Strand 2
C
176 183parallel
Strand 3
C
166 170anti-parallel
Strand 4
C
156 161anti-parallel
Strand 5
C
197 201anti-parallel
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There are 7 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
186 187first strand
Strand 2
C
176 183parallel
Strand 3
D
107 113anti-parallel
Strand 4
D
97 103anti-parallel
Strand 5
D
88 93anti-parallel
Strand 6
D
2 6anti-parallel
Strand 7
D
57 62anti-parallel
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There are 9 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
67 72first strand
Strand 2
D
25 30anti-parallel
Strand 3
D
34 40anti-parallel
Strand 4
D
46 53anti-parallel
Strand 5
D
236 241anti-parallel
Strand 6
D
225 230anti-parallel
Strand 7
D
214 219anti-parallel
Strand 8
D
131 136anti-parallel
Strand 9
D
187 190anti-parallel
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There are 4 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
173 178first strand
Strand 2
D
162 168anti-parallel
Strand 3
D
153 159anti-parallel
Strand 4
D
194 198anti-parallel
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