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


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 4IDN entry

There are 2 chains in PDB entry 4IDN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 30ARG 446
B
 LYS 31HIS 453
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 27 helices in PDB entry 4IDN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
49 58Right-handed alpha
Helix 2
2
A
79 93Right-handed alpha
Helix 3
3
A
156 171Right-handed alpha
Helix 4
4
A
183 200Right-handed alpha
Helix 5
5
A
228 241Right-handed alpha
Helix 6
6
A
247 260Right-handed alpha
Helix 7
7
A
273 279Right-handed alpha
Helix 8
8
A
285 289Right-handed 310
Helix 9
9
A
290 306Right-handed alpha
Helix 10
10
A
321 338Right-handed alpha
Helix 11
11
A
346 376Right-handed alpha
Helix 12
12
A
383 405Right-handed alpha
Helix 13
13
A
414 445Right-handed alpha
Helix 14
14
B
49 58Right-handed alpha
Helix 15
15
B
79 93Right-handed alpha
Helix 16
16
B
156 171Right-handed alpha
Helix 17
17
B
183 199Right-handed alpha
Helix 18
18
B
228 241Right-handed alpha
Helix 19
19
B
247 260Right-handed alpha
Helix 20
20
B
273 279Right-handed alpha
Helix 21
21
B
285 289Right-handed 310
Helix 22
22
B
290 306Right-handed alpha
Helix 23
23
B
321 339Right-handed alpha
Helix 24
24
B
346 376Right-handed alpha
Helix 25
25
B
383 405Right-handed alpha
Helix 26
26
B
410 438Right-handed alpha
Helix 27
27
B
442 453Right-handed alpha
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There are 6 sheets in PDB entry 4IDN. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
46 48first strand
Strand 2
A
34 40anti-parallel
Strand 3
A
123 126anti-parallel
Strand 4
A
139 147anti-parallel
Strand 5
A
130 133anti-parallel
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There are 8 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
46 48first strand
Strand 2
A
34 40anti-parallel
Strand 3
A
123 126anti-parallel
Strand 4
A
139 147anti-parallel
Strand 5
A
67 74parallel
Strand 6
A
173 179parallel
Strand 7
A
209 217parallel
Strand 8
A
261 268parallel
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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
314 315first strand
Strand 2
A
318 319anti-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
46 48first strand
Strand 2
B
34 40anti-parallel
Strand 3
B
123 126anti-parallel
Strand 4
B
139 147anti-parallel
Strand 5
B
130 133anti-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
B
46 48first strand
Strand 2
B
34 40anti-parallel
Strand 3
B
123 126anti-parallel
Strand 4
B
139 147anti-parallel
Strand 5
B
67 74parallel
Strand 6
B
173 179parallel
Strand 7
B
209 217parallel
Strand 8
B
261 268parallel
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There are 2 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
314 315first strand
Strand 2
B
318 319anti-parallel
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