Analysis of interatomic Contacts of Structural Units in PDB entry:
1U25


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 1U25 entry

There are 3 chains in PDB entry 1U25 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 25ALA 335
B
 THR 25LEU 336
C
 GLU 26ALA 335
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 43 helices in PDB entry 1U25. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
30 35Right-handed 310
Helix 2
2
A
36 41Right-handed 310
Helix 3
3
A
70 74Right-handed 310
Helix 4
4
A
85 90Right-handed alpha
Helix 5
5
A
98 110Right-handed alpha
Helix 6
6
A
139 143Right-handed 310
Helix 7
7
A
149 164Right-handed alpha
Helix 8
8
A
193 201Right-handed alpha
Helix 9
9
A
217 229Right-handed alpha
Helix 10
10
A
245 260Right-handed alpha
Helix 11
11
A
264 275Right-handed alpha
Helix 12
12
A
291 293Right-handed 310
Helix 13
13
A
294 314Right-handed alpha
Helix 14
14
A
323 331Right-handed alpha
Helix 15
15
B
30 35Right-handed 310
Helix 16
16
B
36 40Right-handed 310
Helix 17
17
B
70 74Right-handed 310
Helix 18
18
B
85 90Right-handed alpha
Helix 19
19
B
98 111Right-handed alpha
Helix 20
20
B
139 143Right-handed 310
Helix 21
21
B
149 163Right-handed alpha
Helix 22
22
B
175 179Right-handed 310
Helix 23
23
B
193 200Right-handed alpha
Helix 24
24
B
217 231Right-handed alpha
Helix 25
25
B
245 260Right-handed alpha
Helix 26
26
B
264 275Right-handed alpha
Helix 27
27
B
288 292Right-handed 310
Helix 28
28
B
293 314Right-handed alpha
Helix 29
29
B
323 331Right-handed alpha
Helix 30
30
C
31 35Right-handed 310
Helix 31
31
C
36 40Right-handed 310
Helix 32
32
C
70 74Right-handed 310
Helix 33
33
C
98 108Right-handed alpha
Helix 34
34
C
109 113Right-handed 310
Helix 35
35
C
141 143Right-handed 310
Helix 36
36
C
149 163Right-handed alpha
Helix 37
37
C
193 202Right-handed alpha
Helix 38
38
C
217 229Right-handed alpha
Helix 39
39
C
245 260Right-handed alpha
Helix 40
40
C
264 275Right-handed alpha
Helix 41
41
C
288 292Right-handed 310
Helix 42
42
C
293 316Right-handed alpha
Helix 43
43
C
323 331Right-handed alpha
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There are 7 sheets in PDB entry 1U25. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

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
184 187first strand
Strand 2
A
168 172anti-parallel
Strand 3
A
44 47parallel
Strand 4
A
133 138anti-parallel
Strand 5
A
127 130anti-parallel
Strand 6
A
191 192anti-parallel
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There are 5 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
60 61first strand
Strand 2
A
91 94anti-parallel
Strand 3
A
236 240parallel
Strand 4
A
117 123parallel
Strand 5
A
204 210parallel
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There are 2 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
287 288first strand
Strand 2
C
286 287anti-parallel
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There are 6 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
184 187first strand
Strand 2
B
168 172anti-parallel
Strand 3
B
44 47parallel
Strand 4
B
133 138anti-parallel
Strand 5
B
127 130anti-parallel
Strand 6
B
191 192anti-parallel
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There are 5 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
60 61first strand
Strand 2
B
91 94anti-parallel
Strand 3
B
236 240parallel
Strand 4
B
117 123parallel
Strand 5
B
204 210parallel
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There are 6 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
184 187first strand
Strand 2
C
168 172anti-parallel
Strand 3
C
42 47parallel
Strand 4
C
133 139anti-parallel
Strand 5
C
127 130anti-parallel
Strand 6
C
191 192anti-parallel
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There are 5 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
60 61first strand
Strand 2
C
91 94anti-parallel
Strand 3
C
236 240parallel
Strand 4
C
117 123parallel
Strand 5
C
204 210parallel
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