Analysis of interatomic Contacts of Structural Units in PDB entry:
1B4U


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 1B4U entry

There are 4 chains in PDB entry 1B4U (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ILE 8TYR 139
B
 ALA 2LEU 299
C
 ILE 8TYR 139
D
 ALA 2LEU 299
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 39 helices in PDB entry 1B4U. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
10 19Right-handed alpha
Helix 2
2
A
28 33Right-handed alpha
Helix 3
3
A
35 45Right-handed alpha
Helix 4
4
A
47 55Right-handed alpha
Helix 5
5
A
57 64Right-handed alpha
Helix 6
6
A
68 75Right-handed alpha
Helix 7
7
A
79 84Right-handed alpha
Helix 8
8
A
89 98Right-handed alpha
Helix 9
9
A
103 110Right-handed alpha
Helix 10
10
A
115 123Right-handed alpha
Helix 11
11
B
14 22Right-handed alpha
Helix 12
12
B
31 44Right-handed alpha
Helix 13
13
B
100 112Right-handed alpha
Helix 14
14
B
127 137Right-handed alpha
Helix 15
15
B
162 177Right-handed alpha
Helix 16
16
B
207 219Right-handed alpha
Helix 17
17
B
221 226Right-handed alpha
Helix 18
18
B
229 236Right-handed alpha
Helix 19
19
B
240 252Right-handed 310
Helix 20
20
B
281 283Right-handed 310
Helix 21
21
C
10 19Right-handed alpha
Helix 22
22
C
28 33Right-handed alpha
Helix 23
23
C
35 45Right-handed alpha
Helix 24
24
C
47 55Right-handed alpha
Helix 25
25
C
57 64Right-handed alpha
Helix 26
26
C
68 75Right-handed alpha
Helix 27
27
C
79 84Right-handed alpha
Helix 28
28
C
89 98Right-handed alpha
Helix 29
29
C
103 110Right-handed alpha
Helix 30
30
C
115 123Right-handed alpha
Helix 31
31
D
14 21Right-handed alpha
Helix 32
32
D
31 45Right-handed alpha
Helix 33
33
D
100 112Right-handed alpha
Helix 34
34
D
127 137Right-handed alpha
Helix 35
35
D
162 178Right-handed alpha
Helix 36
36
D
207 219Right-handed alpha
Helix 37
37
D
221 226Right-handed alpha
Helix 38
38
D
229 236Right-handed alpha
Helix 39
39
D
238 252Right-handed 310
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There are 4 sheets in PDB entry 1B4U. Click on sheet of interest to get list of strands forming it: A, B, C, D,

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
B
146 151first strand
Strand 2
B
53 58parallel
Strand 3
B
184 190parallel
Strand 4
B
3 10parallel
Strand 5
B
273 280anti-parallel
Strand 6
B
257 265anti-parallel
Strand 7
B
292 295parallel
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There are 2 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
74 76first strand
Strand 2
B
118 120parallel
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There are 7 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
146 151first strand
Strand 2
D
53 58parallel
Strand 3
D
184 190parallel
Strand 4
D
3 10parallel
Strand 5
D
273 280anti-parallel
Strand 6
D
257 265anti-parallel
Strand 7
D
292 295parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
74 76first strand
Strand 2
D
118 120parallel
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