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


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 1ECX entry

There are 2 chains in PDB entry 1ECX (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1LEU 376
B
 MET 1LEU 376
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 31 helices in PDB entry 1ECX. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
14 27Right-handed alpha
Helix 2
2
A
36 58Right-handed alpha
Helix 3
3
A
60 62Right-handed 310
Helix 4
4
A
69 84Right-handed alpha
Helix 5
5
A
99 112Right-handed alpha
Helix 6
6
A
128 136Right-handed alpha
Helix 7
7
A
157 169Right-handed alpha
Helix 8
8
A
202 204Right-handed 310
Helix 9
9
A
240 257Right-handed alpha
Helix 10
10
A
257 278Right-handed alpha
Helix 11
11
A
286 289Right-handed 310
Helix 12
12
A
303 314Right-handed alpha
Helix 13
13
A
333 338Right-handed alpha
Helix 14
14
A
341 346Right-handed alpha
Helix 15
15
A
358 376Right-handed alpha
Helix 16
16
B
14 27Right-handed alpha
Helix 17
17
B
36 58Right-handed alpha
Helix 18
18
B
60 62Right-handed 310
Helix 19
19
B
69 85Right-handed alpha
Helix 20
20
B
99 112Right-handed alpha
Helix 21
21
B
128 136Right-handed alpha
Helix 22
22
B
157 169Right-handed alpha
Helix 23
23
B
202 205Right-handed 310
Helix 24
24
B
230 234Right-handed 310
Helix 25
25
B
240 257Right-handed alpha
Helix 26
26
B
257 279Right-handed alpha
Helix 27
27
B
286 289Right-handed 310
Helix 28
28
B
303 314Right-handed alpha
Helix 29
29
B
332 339Right-handed alpha
Helix 30
30
B
341 347Right-handed alpha
Helix 31
31
B
358 376Right-handed alpha
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There are 6 sheets in PDB entry 1ECX. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 2 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
3 4first strand
Strand 2
A
316 317parallel
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There are 7 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
64 67first strand
Strand 2
A
211 215anti-parallel
Strand 3
A
196 200anti-parallel
Strand 4
A
173 177parallel
Strand 5
A
140 146parallel
Strand 6
A
91 94parallel
Strand 7
A
115 118parallel
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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
282 283first strand
Strand 2
A
294 298anti-parallel
Strand 3
A
349 352anti-parallel
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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
B
3 4first strand
Strand 2
B
316 317parallel
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There are 7 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
64 67first strand
Strand 2
B
211 215anti-parallel
Strand 3
B
196 200anti-parallel
Strand 4
B
173 177parallel
Strand 5
B
140 146parallel
Strand 6
B
91 94parallel
Strand 7
B
115 118parallel
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There are 3 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
282 283first strand
Strand 2
B
294 298anti-parallel
Strand 3
B
348 352anti-parallel
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