Analysis of interatomic Contacts of Structural Units in PDB entry:
4N21


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 4N21 entry

There are 6 chains in PDB entry 4N21 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLU 229GLU 351
B
 GLU 229GLU 351
C
 HIS 228GLU 351
D
 GLU 229GLU 351
E
 ASN 230HIS 350
F
 HIS 228GLU 351
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 26 helices in PDB entry 4N21. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
230 308Right-handed alpha
Helix 2
2
A
309 312Right-handed 310
Helix 3
3
A
313 318Right-handed alpha
Helix 4
4
A
330 348Right-handed alpha
Helix 5
5
B
230 308Right-handed alpha
Helix 6
6
B
309 312Right-handed 310
Helix 7
7
B
313 318Right-handed alpha
Helix 8
8
B
330 347Right-handed alpha
Helix 9
9
B
348 350Right-handed 310
Helix 10
10
C
229 308Right-handed alpha
Helix 11
11
C
309 311Right-handed 310
Helix 12
12
C
312 318Right-handed alpha
Helix 13
13
C
330 348Right-handed alpha
Helix 14
14
D
230 308Right-handed alpha
Helix 15
15
D
313 318Right-handed alpha
Helix 16
16
D
330 347Right-handed alpha
Helix 17
17
D
348 351Right-handed 310
Helix 18
18
E
231 308Right-handed alpha
Helix 19
19
E
309 312Right-handed 310
Helix 20
20
E
313 317Right-handed 310
Helix 21
21
E
330 348Right-handed alpha
Helix 22
22
F
230 308Right-handed alpha
Helix 23
23
F
309 311Right-handed 310
Helix 24
24
F
312 319Right-handed alpha
Helix 25
25
F
330 347Right-handed alpha
Helix 26
26
F
348 351Right-handed 310
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There are no sheets in PDB entry 4N21
Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il