Analysis of interatomic Contacts of Structural Units in PDB entry:
4Y21


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 4Y21 entry

There is 1 chain in PDB entry 4Y21 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 10LYS 548
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 25 helices in PDB entry 4Y21. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
10 30Right-handed alpha
Helix 2
AA2
A
31 36Right-handed alpha
Helix 3
AA3
A
40 64Right-handed alpha
Helix 4
AA4
A
72 95Right-handed alpha
Helix 5
AA5
A
95 104Right-handed alpha
Helix 6
AA6
A
126 146Right-handed alpha
Helix 7
AA7
A
146 151Right-handed alpha
Helix 8
AA8
A
159 187Right-handed alpha
Helix 9
AA9
A
190 209Right-handed alpha
Helix 10
AB1
A
212 217Right-handed alpha
Helix 11
AB2
A
221 246Right-handed alpha
Helix 12
AB3
A
248 255Right-handed alpha
Helix 13
AB4
A
267 287Right-handed alpha
Helix 14
AB5
A
291 322Right-handed alpha
Helix 15
AB6
A
323 325Right-handed 310
Helix 16
AB7
A
326 329Right-handed 310
Helix 17
AB8
A
330 354Right-handed alpha
Helix 18
AB9
A
360 388Right-handed alpha
Helix 19
AC1
A
389 406Right-handed alpha
Helix 20
AC2
A
420 444Right-handed alpha
Helix 21
AC3
A
445 447Right-handed 310
Helix 22
AC4
A
448 471Right-handed alpha
Helix 23
AC5
A
493 513Right-handed alpha
Helix 24
AC6
A
519 526Right-handed alpha
Helix 25
AC7
A
526 540Right-handed alpha
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There is 1 sheet (AA1) in PDB entry 4Y21.

There are 2 strands in AA1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
477 480first strand
Strand 2
A
483 486anti-parallel
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