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


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 4XXI entry

There are 2 chains in PDB entry 4XXI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LEU 20ALA 239
B
 LEU 20LYS 238
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 21 helices in PDB entry 4XXI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
20 31Right-handed alpha
Helix 2
AA2
A
36 49Right-handed alpha
Helix 3
AA3
A
49 63Right-handed alpha
Helix 4
AA4
A
63 75Right-handed alpha
Helix 5
AA5
A
76 79Right-handed 310
Helix 6
AA6
A
154 176Right-handed alpha
Helix 7
AA7
A
178 186Right-handed alpha
Helix 8
AA8
A
187 196Right-handed alpha
Helix 9
AA9
A
197 214Right-handed alpha
Helix 10
AB1
A
215 217Right-handed 310
Helix 11
AB2
A
219 236Right-handed alpha
Helix 12
AB3
B
21 31Right-handed alpha
Helix 13
AB4
B
36 63Right-handed alpha
Helix 14
AB5
B
63 75Right-handed alpha
Helix 15
AB6
B
76 79Right-handed 310
Helix 16
AB7
B
154 176Right-handed alpha
Helix 17
AB8
B
178 186Right-handed alpha
Helix 18
AB9
B
187 196Right-handed alpha
Helix 19
AC1
B
197 214Right-handed alpha
Helix 20
AC2
B
215 217Right-handed 310
Helix 21
AC3
B
219 238Right-handed alpha
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There are no sheets in PDB entry 4XXI
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