Analysis of interatomic Contacts of Structural Units in PDB entry:
3B4U


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 3B4U entry

There are 2 chains in PDB entry 3B4U (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 4ARG 290
B
 GLN 3ARG 290
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 33 helices in PDB entry 3B4U. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
22 36Right-handed alpha
Helix 2
2
A
49 53Right-handed 310
Helix 3
3
A
54 68Right-handed alpha
Helix 4
4
A
71 73Right-handed 310
Helix 5
5
A
83 97Right-handed alpha
Helix 6
6
A
114 130Right-handed alpha
Helix 7
7
A
141 146Right-handed alpha
Helix 8
8
A
150 161Right-handed alpha
Helix 9
9
A
174 186Right-handed alpha
Helix 10
10
A
194 204Right-handed alpha
Helix 11
11
A
212 216Right-handed 310
Helix 12
12
A
217 226Right-handed alpha
Helix 13
13
A
231 242Right-handed alpha
Helix 14
14
A
245 259Right-handed alpha
Helix 15
15
A
260 265Right-handed 310
Helix 16
16
A
274 290Right-handed alpha
Helix 17
17
B
22 36Right-handed alpha
Helix 18
18
B
49 53Right-handed 310
Helix 19
19
B
56 68Right-handed alpha
Helix 20
20
B
71 73Right-handed 310
Helix 21
21
B
83 97Right-handed alpha
Helix 22
22
B
114 130Right-handed alpha
Helix 23
23
B
141 146Right-handed alpha
Helix 24
24
B
150 161Right-handed alpha
Helix 25
25
B
174 186Right-handed alpha
Helix 26
26
B
194 204Right-handed alpha
Helix 27
27
B
212 216Right-handed 310
Helix 28
28
B
217 226Right-handed alpha
Helix 29
29
B
231 241Right-handed alpha
Helix 30
30
B
242 244Right-handed 310
Helix 31
31
B
245 259Right-handed alpha
Helix 32
32
B
260 265Right-handed 310
Helix 33
33
B
274 290Right-handed alpha
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There are 2 sheets in PDB entry 3B4U. Click on sheet of interest to get list of strands forming it: A, B,

There are 9 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
6 10first strand
Strand 2
A
40 43parallel
Strand 3
A
75 79parallel
Strand 4
A
101 104parallel
Strand 5
A
136 140parallel
Strand 6
A
165 170parallel
Strand 7
A
189 192parallel
Strand 8
A
208 211parallel
Strand 9
A
6 10parallel
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There are 9 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
6 10first strand
Strand 2
B
40 43parallel
Strand 3
B
75 79parallel
Strand 4
B
101 104parallel
Strand 5
B
136 140parallel
Strand 6
B
165 170parallel
Strand 7
B
189 192parallel
Strand 8
B
208 211parallel
Strand 9
B
6 10parallel
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