Analysis of interatomic Contacts of Structural Units in PDB entry:
1IU4


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 1IU4 entry

There are 4 chains in PDB entry 1IU4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 1PRO 331
B
 ASP 1PRO 331
C
 ASP 1PRO 331
D
 ASP 1PRO 331
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 60 helices in PDB entry 1IU4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
31 42Right-handed alpha
Helix 2
2
A
53 61Right-handed alpha
Helix 3
3
A
62 64Right-handed 310
Helix 4
4
A
65 73Right-handed alpha
Helix 5
5
A
86 97Right-handed alpha
Helix 6
6
A
104 117Right-handed alpha
Helix 7
7
A
118 136Right-handed alpha
Helix 8
8
A
142 157Right-handed alpha
Helix 9
9
A
159 164Right-handed 310
Helix 10
10
A
172 177Right-handed alpha
Helix 11
11
A
189 191Right-handed 310
Helix 12
12
A
211 218Right-handed alpha
Helix 13
13
A
266 269Right-handed 310
Helix 14
14
A
295 299Right-handed alpha
Helix 15
15
B
31 42Right-handed alpha
Helix 16
16
B
53 61Right-handed alpha
Helix 17
17
B
62 64Right-handed 310
Helix 18
18
B
65 73Right-handed alpha
Helix 19
19
B
86 95Right-handed alpha
Helix 20
20
B
104 116Right-handed alpha
Helix 21
21
B
118 138Right-handed alpha
Helix 22
22
B
142 157Right-handed alpha
Helix 23
23
B
158 158Right-handed 310
Helix 24
24
B
159 164Right-handed 310
Helix 25
25
B
168 177Right-handed alpha
Helix 26
26
B
177 182Right-handed alpha
Helix 27
27
B
189 191Right-handed 310
Helix 28
28
B
211 218Right-handed alpha
Helix 29
29
B
266 269Right-handed 310
Helix 30
30
B
295 301Right-handed alpha
Helix 31
31
C
31 42Right-handed alpha
Helix 32
32
C
53 61Right-handed alpha
Helix 33
33
C
65 73Right-handed alpha
Helix 34
34
C
86 97Right-handed alpha
Helix 35
35
C
104 116Right-handed alpha
Helix 36
36
C
119 138Right-handed alpha
Helix 37
37
C
142 158Right-handed alpha
Helix 38
38
C
159 164Right-handed 310
Helix 39
39
C
168 177Right-handed alpha
Helix 40
40
C
177 182Right-handed alpha
Helix 41
41
C
189 191Right-handed 310
Helix 42
42
C
211 218Right-handed alpha
Helix 43
43
C
233 237Right-handed 310
Helix 44
44
C
266 269Right-handed 310
Helix 45
45
C
295 301Right-handed alpha
Helix 46
46
D
31 42Right-handed alpha
Helix 47
47
D
53 61Right-handed alpha
Helix 48
48
D
65 73Right-handed alpha
Helix 49
49
D
86 94Right-handed alpha
Helix 50
50
D
104 117Right-handed alpha
Helix 51
51
D
118 138Right-handed alpha
Helix 52
52
D
142 157Right-handed alpha
Helix 53
53
D
159 164Right-handed 310
Helix 54
54
D
168 177Right-handed alpha
Helix 55
55
D
178 182Right-handed 310
Helix 56
56
D
189 191Right-handed 310
Helix 57
57
D
211 218Right-handed alpha
Helix 58
58
D
233 237Right-handed 310
Helix 59
59
D
266 269Right-handed 310
Helix 60
60
D
295 301Right-handed alpha
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There are 9 sheets in PDB entry 1IU4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

There are 3 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
26 30first strand
Strand 2
A
289 294anti-parallel
Strand 3
A
271 275anti-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
231 232first strand
Strand 2
A
81 82anti-parallel
Strand 3
A
307 316anti-parallel
Strand 4
A
193 202anti-parallel
Strand 5
A
254 260anti-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
B
26 30first strand
Strand 2
B
289 294anti-parallel
Strand 3
B
271 275anti-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
B
231 232first strand
Strand 2
B
81 82anti-parallel
Strand 3
B
307 316anti-parallel
Strand 4
B
193 202anti-parallel
Strand 5
B
255 260anti-parallel
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There are 3 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
26 30first strand
Strand 2
C
289 294anti-parallel
Strand 3
C
271 275anti-parallel
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There are 4 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
81 82first strand
Strand 2
C
307 316anti-parallel
Strand 3
C
193 202anti-parallel
Strand 4
C
255 260anti-parallel
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There are 2 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
84 85first strand
Strand 2
C
117 118anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
22 23first strand
Strand 2
D
26 30anti-parallel
Strand 3
D
289 294anti-parallel
Strand 4
D
271 273anti-parallel
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There are 5 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
231 232first strand
Strand 2
D
81 82anti-parallel
Strand 3
D
307 316anti-parallel
Strand 4
D
193 202anti-parallel
Strand 5
D
254 260anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il