Analysis of interatomic Contacts of Structural Units in PDB entry:
1EK1


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 1EK1 entry

There are 2 chains in PDB entry 1EK1 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ARG 4GLU 544
B
 ARG 4GLU 544
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 50 helices in PDB entry 1EK1. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
48 54Right-handed alpha
Helix 2
2
A
102 116Right-handed alpha
Helix 3
3
A
132 145Right-handed alpha
Helix 4
4
A
163 174Right-handed alpha
Helix 5
5
A
189 197Right-handed alpha
Helix 6
6
A
210 216Right-handed alpha
Helix 7
7
A
268 273Right-handed 310
Helix 8
8
A
274 284Right-handed alpha
Helix 9
9
A
303 306Right-handed 310
Helix 10
10
A
307 323Right-handed alpha
Helix 11
11
A
333 346Right-handed alpha
Helix 12
12
A
368 376Right-handed alpha
Helix 13
13
A
377 379Right-handed 310
Helix 14
14
A
380 386Right-handed alpha
Helix 15
15
A
389 397Right-handed alpha
Helix 16
16
A
398 407Right-handed alpha
Helix 17
17
A
419 423Right-handed 310
Helix 18
18
A
442 457Right-handed alpha
Helix 19
19
A
458 463Right-handed alpha
Helix 20
20
A
467 476Right-handed alpha
Helix 21
21
A
499 504Right-handed 310
Helix 22
22
A
505 509Right-handed 310
Helix 23
23
A
524 529Right-handed alpha
Helix 24
24
A
529 544Right-handed alpha
Helix 25
25
B
19 25Right-handed alpha
Helix 26
26
B
37 41Right-handed 310
Helix 27
27
B
49 55Right-handed alpha
Helix 28
28
B
62 75Right-handed alpha
Helix 29
29
B
102 115Right-handed alpha
Helix 30
30
B
132 144Right-handed alpha
Helix 31
31
B
153 157Right-handed alpha
Helix 32
32
B
163 174Right-handed alpha
Helix 33
33
B
192 197Right-handed alpha
Helix 34
34
B
268 273Right-handed 310
Helix 35
35
B
274 284Right-handed alpha
Helix 36
36
B
303 306Right-handed 310
Helix 37
37
B
307 323Right-handed alpha
Helix 38
38
B
333 346Right-handed alpha
Helix 39
39
B
368 376Right-handed alpha
Helix 40
40
B
379 387Right-handed alpha
Helix 41
41
B
389 397Right-handed alpha
Helix 42
42
B
398 407Right-handed alpha
Helix 43
43
B
420 425Right-handed alpha
Helix 44
44
B
442 457Right-handed alpha
Helix 45
45
B
458 463Right-handed alpha
Helix 46
46
B
467 476Right-handed alpha
Helix 47
47
B
499 504Right-handed 310
Helix 48
48
B
505 509Right-handed 310
Helix 49
49
B
524 529Right-handed alpha
Helix 50
50
B
529 544Right-handed alpha
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There are 6 sheets in PDB entry 1EK1. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 4 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
149 152first strand
Strand 2
A
119 123parallel
Strand 3
A
5 8parallel
Strand 4
A
180 181parallel
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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
15 16first strand
Strand 2
A
100 101anti-parallel
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There are 8 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
239 241first strand
Strand 2
A
247 253anti-parallel
Strand 3
A
285 289anti-parallel
Strand 4
A
258 260parallel
Strand 5
A
327 332parallel
Strand 6
A
350 356parallel
Strand 7
A
487 492parallel
Strand 8
A
514 518parallel
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There are 4 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
149 152first strand
Strand 2
B
118 123parallel
Strand 3
B
5 7parallel
Strand 4
B
180 181parallel
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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
B
15 16first strand
Strand 2
B
100 101anti-parallel
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There are 8 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
239 241first strand
Strand 2
B
247 253anti-parallel
Strand 3
B
285 289anti-parallel
Strand 4
B
258 260parallel
Strand 5
B
327 332parallel
Strand 6
B
350 356parallel
Strand 7
B
487 492parallel
Strand 8
B
514 518parallel
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