Analysis of interatomic Contacts of Structural Units in PDB entry:
2A4X


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 2A4X entry

There are 2 chains in PDB entry 2A4X (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2GLU 132
B
 SER 202LEU 329
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 9 helices in PDB entry 2A4X. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
14 24Right-handed alpha
Helix 2
2
A
30 36Right-handed 310
Helix 3
3
A
54 61Right-handed alpha
Helix 4
4
A
81 95Right-handed alpha
Helix 5
5
B
214 224Right-handed alpha
Helix 6
6
B
230 236Right-handed 310
Helix 7
7
B
244 246Right-handed 310
Helix 8
8
B
254 260Right-handed alpha
Helix 9
9
B
281 295Right-handed alpha
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There are 2 sheets in PDB entry 2A4X. Click on sheet of interest to get list of strands forming it: A, B,

There are 7 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
38 42first strand
Strand 2
A
48 53anti-parallel
Strand 3
A
4 12parallel
Strand 4
B
273 278anti-parallel
Strand 5
B
322 328parallel
Strand 6
B
310 316anti-parallel
Strand 7
B
298 306anti-parallel
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There are 7 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
99 106first strand
Strand 2
A
110 116anti-parallel
Strand 3
A
122 128anti-parallel
Strand 4
A
73 78parallel
Strand 5
B
204 212anti-parallel
Strand 6
B
248 253parallel
Strand 7
B
238 242anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il