Analysis of interatomic Contacts of Structural Units in PDB entry:
4A3U


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 4A3U entry

There are 2 chains in PDB entry 4A3U (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PRO 2LEU 356
B
 PRO 2LEU 356
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 29 helices in PDB entry 4A3U. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
36 46Right-handed alpha
Helix 2
2
A
74 91Right-handed alpha
Helix 3
3
A
102 106Right-handed 310
Helix 4
4
A
107 112Right-handed alpha
Helix 5
5
A
143 145Right-handed 310
Helix 6
6
A
146 164Right-handed alpha
Helix 7
7
A
177 184Right-handed alpha
Helix 8
8
A
197 202Right-handed alpha
Helix 9
9
A
202 217Right-handed alpha
Helix 10
10
A
239 254Right-handed alpha
Helix 11
11
A
277 285Right-handed alpha
Helix 12
12
A
296 307Right-handed alpha
Helix 13
13
A
315 321Right-handed alpha
Helix 14
14
A
323 331Right-handed alpha
Helix 15
15
A
338 342Right-handed 310
Helix 16
16
B
37 46Right-handed alpha
Helix 17
17
B
74 91Right-handed alpha
Helix 18
18
B
102 106Right-handed 310
Helix 19
19
B
107 112Right-handed alpha
Helix 20
20
B
143 145Right-handed 310
Helix 21
21
B
146 165Right-handed alpha
Helix 22
22
B
177 184Right-handed alpha
Helix 23
23
B
197 217Right-handed alpha
Helix 24
24
B
239 254Right-handed alpha
Helix 25
25
B
277 285Right-handed alpha
Helix 26
26
B
296 307Right-handed alpha
Helix 27
27
B
315 321Right-handed alpha
Helix 28
28
B
323 330Right-handed alpha
Helix 29
29
B
338 342Right-handed 310
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There are 8 sheets in PDB entry 4A3U. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, BA, BB, BC, BD,

There are 2 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
8 10first strand
Strand 2
A
13 15anti-parallel
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There are 9 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
19 21first strand
Strand 2
A
311 314parallel
Strand 3
A
289 292parallel
Strand 4
A
257 261parallel
Strand 5
A
221 225parallel
Strand 6
A
168 173parallel
Strand 7
A
95 100parallel
Strand 8
A
52 58parallel
Strand 9
A
19 21parallel
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There are 3 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
116 117first strand
Strand 2
A
138 141parallel
Strand 3
A
121 122anti-parallel
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There are 2 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
126 128first strand
Strand 2
A
133 135anti-parallel
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There are 2 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
8 10first strand
Strand 2
B
13 15anti-parallel
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There are 9 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
19 21first strand
Strand 2
B
311 314parallel
Strand 3
B
289 292parallel
Strand 4
B
257 261parallel
Strand 5
B
221 225parallel
Strand 6
B
168 172parallel
Strand 7
B
95 100parallel
Strand 8
B
52 58parallel
Strand 9
B
19 21parallel
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There are 2 strands in BC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
116 117first strand
Strand 2
B
140 141parallel
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There are 2 strands in BD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
126 127first strand
Strand 2
B
134 135anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il