Analysis of interatomic Contacts of Structural Units in PDB entry:
4ECH


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 4ECH entry

There are 2 chains in PDB entry 4ECH (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 5GLU 510
B
 LYS 9GLU 510
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 47 helices in PDB entry 4ECH. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
17 30Right-handed alpha
Helix 2
2
A
54 56Right-handed 310
Helix 3
3
A
72 86Right-handed alpha
Helix 4
4
A
114 130Right-handed alpha
Helix 5
5
A
140 153Right-handed alpha
Helix 6
6
A
154 156Right-handed 310
Helix 7
7
A
157 169Right-handed alpha
Helix 8
8
A
171 176Right-handed alpha
Helix 9
9
A
183 188Right-handed alpha
Helix 10
10
A
200 210Right-handed alpha
Helix 11
11
A
211 212Right-handed 310
Helix 12
12
A
213 215Right-handed 310
Helix 13
13
A
254 260Right-handed alpha
Helix 14
14
A
261 263Right-handed 310
Helix 15
15
A
279 286Right-handed alpha
Helix 16
16
A
287 289Right-handed 310
Helix 17
17
A
320 330Right-handed alpha
Helix 18
18
A
332 341Right-handed alpha
Helix 19
19
A
352 356Right-handed 310
Helix 20
20
A
363 368Right-handed alpha
Helix 21
21
A
379 387Right-handed alpha
Helix 22
22
A
390 409Right-handed alpha
Helix 23
23
A
458 469Right-handed alpha
Helix 24
24
A
478 482Right-handed 310
Helix 25
25
A
488 509Right-handed alpha
Helix 26
26
B
17 30Right-handed alpha
Helix 27
27
B
54 56Right-handed 310
Helix 28
28
B
72 86Right-handed alpha
Helix 29
29
B
114 130Right-handed alpha
Helix 30
30
B
140 153Right-handed alpha
Helix 31
31
B
154 156Right-handed 310
Helix 32
32
B
157 168Right-handed alpha
Helix 33
33
B
171 176Right-handed alpha
Helix 34
34
B
200 210Right-handed alpha
Helix 35
35
B
211 212Right-handed 310
Helix 36
36
B
213 215Right-handed 310
Helix 37
37
B
254 259Right-handed alpha
Helix 38
38
B
260 263Right-handed 310
Helix 39
39
B
279 285Right-handed alpha
Helix 40
40
B
320 330Right-handed alpha
Helix 41
41
B
332 342Right-handed alpha
Helix 42
42
B
363 367Right-handed alpha
Helix 43
43
B
379 386Right-handed alpha
Helix 44
44
B
390 409Right-handed alpha
Helix 45
45
B
458 468Right-handed alpha
Helix 46
46
B
478 482Right-handed 310
Helix 47
47
B
488 509Right-handed alpha
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There are 12 sheets in PDB entry 4ECH. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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
A
217 218first strand
Strand 2
A
35 38parallel
Strand 3
A
7 14parallel
Strand 4
A
243 251parallel
Strand 5
A
233 238anti-parallel
Strand 6
A
223 229anti-parallel
Strand 7
A
273 275parallel
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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
217 218first strand
Strand 2
A
35 38parallel
Strand 3
A
7 14parallel
Strand 4
A
243 251parallel
Strand 5
A
474 476parallel
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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
50 52first strand
Strand 2
A
58 60anti-parallel
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There are 3 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
65 66first strand
Strand 2
A
196 198anti-parallel
Strand 3
A
90 92anti-parallel
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There are 8 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
105 106first strand
Strand 2
A
98 101anti-parallel
Strand 3
A
312 315parallel
Strand 4
A
358 362anti-parallel
Strand 5
A
371 376anti-parallel
Strand 6
A
295 301anti-parallel
Strand 7
A
431 437anti-parallel
Strand 8
A
415 416parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
290 292first strand
Strand 2
A
450 452anti-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
B
217 218first strand
Strand 2
B
36 38parallel
Strand 3
B
11 14parallel
Strand 4
B
248 251parallel
Strand 5
B
474 476parallel
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There are 2 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
50 52first strand
Strand 2
B
58 60anti-parallel
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There are 3 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
65 66first strand
Strand 2
B
196 198anti-parallel
Strand 3
B
90 91anti-parallel
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There are 8 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
105 106first strand
Strand 2
B
98 101anti-parallel
Strand 3
B
312 316parallel
Strand 4
B
358 362anti-parallel
Strand 5
B
371 376anti-parallel
Strand 6
B
295 301anti-parallel
Strand 7
B
431 437anti-parallel
Strand 8
B
415 416parallel
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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
243 246first strand
Strand 2
B
233 238anti-parallel
Strand 3
B
223 229anti-parallel
Strand 4
B
273 275parallel
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There are 2 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
290 292first strand
Strand 2
B
450 452anti-parallel
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