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


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 1IBQ entry

There are 2 chains in PDB entry 1IBQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 1ALA 325
B
 SER 1ALA 325
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 17 helices in PDB entry 1IBQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
46 51Right-handed alpha
Helix 2
2
A
108 113Right-handed alpha
Helix 3
3
A
125 129Right-handed 310
Helix 4
4
A
138 144Right-handed alpha
Helix 5
5
A
145 147Right-handed 310
Helix 6
6
A
170 173Right-handed 310
Helix 7
7
A
223 232Right-handed alpha
Helix 8
8
A
269 273Right-handed alpha
Helix 9
9
A
301 306Right-handed alpha
Helix 10
10
B
46 50Right-handed 310
Helix 11
11
B
108 114Right-handed alpha
Helix 12
12
B
125 129Right-handed 310
Helix 13
13
B
138 144Right-handed alpha
Helix 14
14
B
145 147Right-handed 310
Helix 15
15
B
223 232Right-handed alpha
Helix 16
16
B
269 273Right-handed alpha
Helix 17
17
B
304 306Right-handed 310
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There are 9 sheets in PDB entry 1IBQ. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

There are 17 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
63 64first strand
Strand 2
A
79 91anti-parallel
Strand 3
A
70 73anti-parallel
Strand 4
A
79 91anti-parallel
Strand 5
A
94 107anti-parallel
Strand 6
A
38 41parallel
Strand 7
A
119 122anti-parallel
Strand 8
A
25 32parallel
Strand 9
A
16 22anti-parallel
Strand 10
A
79 91anti-parallel
Strand 11
A
16 22anti-parallel
Strand 12
A
3 9anti-parallel
Strand 13
A
160 166anti-parallel
Strand 14
A
151 157anti-parallel
Strand 15
A
308 313anti-parallel
Strand 16
A
318 323anti-parallel
Strand 17
A
179 182anti-parallel
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There are 5 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
191 194first strand
Strand 2
A
209 213anti-parallel
Strand 3
A
298 300parallel
Strand 4
A
220 222anti-parallel
Strand 5
A
289 291parallel
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There are 3 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
196 199first strand
Strand 2
A
257 261anti-parallel
Strand 3
A
264 268anti-parallel
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There are 3 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
247 249first strand
Strand 2
A
284 287anti-parallel
Strand 3
A
274 277anti-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
B
3 7first strand
Strand 2
B
160 166anti-parallel
Strand 3
B
151 157anti-parallel
Strand 4
B
308 313anti-parallel
Strand 5
B
318 323anti-parallel
Strand 6
B
179 182anti-parallel
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There are 10 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
63 64first strand
Strand 2
B
80 91anti-parallel
Strand 3
B
70 71anti-parallel
Strand 4
B
80 91anti-parallel
Strand 5
B
94 107anti-parallel
Strand 6
B
38 40parallel
Strand 7
B
119 122anti-parallel
Strand 8
B
25 32parallel
Strand 9
B
17 22anti-parallel
Strand 10
B
80 91anti-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
B
191 194first strand
Strand 2
B
209 213anti-parallel
Strand 3
B
298 300parallel
Strand 4
B
220 222anti-parallel
Strand 5
B
289 291parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
196 199first strand
Strand 2
B
257 261anti-parallel
Strand 3
B
264 268anti-parallel
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There are 4 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
238 240first strand
Strand 2
B
245 249anti-parallel
Strand 3
B
284 287anti-parallel
Strand 4
B
274 277anti-parallel
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