Analysis of interatomic Contacts of Structural Units in PDB entry:
4A26


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 4A26 entry

There are 2 chains in PDB entry 4A26 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 3SER 298
B
 ALA 4GLY 296
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 23 helices in PDB entry 4A26. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 31Right-handed alpha
Helix 2
2
A
46 63Right-handed alpha
Helix 3
3
A
77 90Right-handed alpha
Helix 4
4
A
108 115Right-handed alpha
Helix 5
5
A
117 121Right-handed 310
Helix 6
6
A
126 135Right-handed alpha
Helix 7
7
A
144 157Right-handed alpha
Helix 8
8
A
175 186Right-handed alpha
Helix 9
9
A
198 208Right-handed alpha
Helix 10
10
A
223 227Right-handed 310
Helix 11
11
A
257 262Right-handed alpha
Helix 12
12
A
276 296Right-handed alpha
Helix 13
13
B
8 31Right-handed alpha
Helix 14
14
B
46 63Right-handed alpha
Helix 15
15
B
77 91Right-handed alpha
Helix 16
16
B
108 115Right-handed alpha
Helix 17
17
B
126 135Right-handed alpha
Helix 18
18
B
144 157Right-handed alpha
Helix 19
19
B
175 186Right-handed alpha
Helix 20
20
B
198 208Right-handed alpha
Helix 21
21
B
223 227Right-handed 310
Helix 22
22
B
257 263Right-handed alpha
Helix 23
23
B
274 295Right-handed alpha
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There are 5 sheets in PDB entry 4A26. Click on sheet of interest to get list of strands forming it: AA, AB, AC, BA, BB,

There are 12 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
5 6first strand
Strand 2
A
267 269parallel
Strand 3
A
232 235parallel
Strand 4
A
211 214parallel
Strand 5
A
165 169parallel
Strand 6
A
189 193parallel
Strand 7
B
189 193anti-parallel
Strand 8
B
165 169parallel
Strand 9
B
211 214parallel
Strand 10
B
232 235parallel
Strand 11
B
267 269parallel
Strand 12
B
5 6parallel
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There are 3 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
66 72first strand
Strand 2
A
37 43parallel
Strand 3
A
96 99parallel
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There are 2 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
239 241first strand
Strand 2
A
251 253anti-parallel
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There are 3 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
66 72first strand
Strand 2
B
37 43parallel
Strand 3
B
96 99parallel
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There are 2 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
239 241first strand
Strand 2
B
251 253anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il