Analysis of interatomic Contacts of Structural Units in PDB entry:
3U4L


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 3U4L entry

There are 2 chains in PDB entry 3U4L (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 6PHE 375
P
 ALA 1TYR 139
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 26 helices in PDB entry 3U4L. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
78 92Right-handed alpha
Helix 2
2
A
97 101Right-handed 310
Helix 3
3
A
112 126Right-handed alpha
Helix 4
4
A
137 145Right-handed alpha
Helix 5
5
A
172 175Right-handed 310
Helix 6
6
A
181 196Right-handed alpha
Helix 7
7
A
203 217Right-handed alpha
Helix 8
8
A
222 229Right-handed alpha
Helix 9
9
A
252 257Right-handed alpha
Helix 10
10
A
258 262Right-handed 310
Helix 11
11
A
263 268Right-handed 310
Helix 12
12
A
273 284Right-handed alpha
Helix 13
13
A
285 288Right-handed 310
Helix 14
14
A
289 295Right-handed alpha
Helix 15
15
A
301 305Right-handed 310
Helix 16
16
A
308 321Right-handed alpha
Helix 17
17
A
337 347Right-handed alpha
Helix 18
18
A
348 355Right-handed 310
Helix 19
19
A
359 366Right-handed alpha
Helix 20
20
A
369 374Right-handed alpha
Helix 21
21
P
3 11Right-handed alpha
Helix 22
22
P
12 14Right-handed 310
Helix 23
23
P
38 42Right-handed 310
Helix 24
24
P
43 52Right-handed alpha
Helix 25
25
P
56 62Right-handed alpha
Helix 26
26
P
119 136Right-handed alpha
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There are 6 sheets in PDB entry 3U4L. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 6 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
29 32first strand
Strand 2
A
16 21anti-parallel
Strand 3
A
8 12anti-parallel
Strand 4
A
103 107parallel
Strand 5
A
131 136parallel
Strand 6
A
357 358anti-parallel
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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
A
71 72first strand
Strand 2
A
75 76anti-parallel
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There are 3 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
169 170first strand
Strand 2
A
160 166anti-parallel
Strand 3
A
176 178anti-parallel
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There are 5 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
169 170first strand
Strand 2
A
160 166anti-parallel
Strand 3
A
149 155anti-parallel
Strand 4
A
297 300parallel
Strand 5
A
329 330parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
238 241first strand
Strand 2
A
247 250anti-parallel
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There are 7 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
29 33first strand
Strand 2
P
16 23anti-parallel
Strand 3
P
108 114anti-parallel
Strand 4
P
99 104anti-parallel
Strand 5
P
84 89anti-parallel
Strand 6
P
68 75anti-parallel
Strand 7
P
63 65anti-parallel
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