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


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 4ECO entry

There are 2 chains in PDB entry 4ECO (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 274LYS 903
B
 ARG 292LYS 903
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 46 helices in PDB entry 4ECO. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
294 310Right-handed alpha
Helix 2
2
A
311 315Right-handed 310
Helix 3
3
A
333 337Right-handed 310
Helix 4
4
A
366 372Right-handed 310
Helix 5
5
A
382 388Right-handed 310
Helix 6
6
A
402 411Right-handed alpha
Helix 7
7
A
411 418Right-handed alpha
Helix 8
8
A
421 426Right-handed 310
Helix 9
9
A
427 437Right-handed alpha
Helix 10
10
A
468 473Right-handed 310
Helix 11
11
A
487 491Right-handed 310
Helix 12
12
A
500 507Right-handed alpha
Helix 13
13
A
512 516Right-handed 310
Helix 14
14
A
555 569Right-handed alpha
Helix 15
15
A
570 574Right-handed 310
Helix 16
16
A
590 595Right-handed alpha
Helix 17
17
A
718 723Right-handed alpha
Helix 18
18
A
754 758Right-handed 310
Helix 19
19
A
772 776Right-handed 310
Helix 20
20
A
798 803Right-handed 310
Helix 21
21
A
829 833Right-handed 310
Helix 22
22
A
875 881Right-handed alpha
Helix 23
23
A
897 901Right-handed 310
Helix 24
24
B
294 310Right-handed alpha
Helix 25
25
B
311 315Right-handed 310
Helix 26
26
B
333 337Right-handed 310
Helix 27
27
B
366 372Right-handed 310
Helix 28
28
B
382 388Right-handed 310
Helix 29
29
B
402 411Right-handed alpha
Helix 30
30
B
411 418Right-handed alpha
Helix 31
31
B
421 426Right-handed 310
Helix 32
32
B
427 437Right-handed alpha
Helix 33
33
B
468 473Right-handed 310
Helix 34
34
B
487 491Right-handed 310
Helix 35
35
B
500 507Right-handed alpha
Helix 36
36
B
512 516Right-handed 310
Helix 37
37
B
555 569Right-handed alpha
Helix 38
38
B
570 574Right-handed 310
Helix 39
39
B
590 595Right-handed alpha
Helix 40
40
B
718 723Right-handed alpha
Helix 41
41
B
754 758Right-handed 310
Helix 42
42
B
772 776Right-handed 310
Helix 43
43
B
798 803Right-handed 310
Helix 44
44
B
829 833Right-handed 310
Helix 45
45
B
875 881Right-handed alpha
Helix 46
46
B
897 901Right-handed 310
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There are 14 sheets in PDB entry 4ECO. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N,

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
275 277first strand
Strand 2
A
285 287anti-parallel
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There are 19 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
343 345first strand
Strand 2
A
351 355anti-parallel
Strand 3
A
377 379parallel
Strand 4
A
478 482parallel
Strand 5
A
521 525parallel
Strand 6
A
545 547parallel
Strand 7
A
577 579parallel
Strand 8
A
602 604parallel
Strand 9
A
625 627parallel
Strand 10
A
649 651parallel
Strand 11
A
672 676parallel
Strand 12
A
703 707parallel
Strand 13
A
729 731parallel
Strand 14
A
760 762parallel
Strand 15
A
785 787parallel
Strand 16
A
808 810parallel
Strand 17
A
838 840parallel
Strand 18
A
859 861parallel
Strand 19
A
885 887parallel
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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
362 365first strand
Strand 2
A
462 466parallel
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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
A
611 613first strand
Strand 2
A
632 635parallel
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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
A
618 623first strand
Strand 2
A
641 643parallel
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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
746 747first strand
Strand 2
A
750 751anti-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
A
869 871first strand
Strand 2
A
893 895parallel
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There are 9 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
343 345first strand
Strand 2
B
351 355anti-parallel
Strand 3
B
377 379parallel
Strand 4
B
478 482parallel
Strand 5
B
521 525parallel
Strand 6
B
545 547parallel
Strand 7
B
577 579parallel
Strand 8
B
602 604parallel
Strand 9
B
625 627parallel
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There are 2 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
362 365first strand
Strand 2
B
462 466parallel
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There are 2 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
611 613first strand
Strand 2
B
632 635parallel
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There are 2 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
618 623first strand
Strand 2
B
641 643parallel
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There are 10 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
649 651first strand
Strand 2
B
672 676parallel
Strand 3
B
703 707parallel
Strand 4
B
729 731parallel
Strand 5
B
760 762parallel
Strand 6
B
785 787parallel
Strand 7
B
808 810parallel
Strand 8
B
838 840parallel
Strand 9
B
859 861parallel
Strand 10
B
885 887parallel
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There are 2 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
746 747first strand
Strand 2
B
750 751anti-parallel
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There are 2 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
869 871first strand
Strand 2
B
893 895parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il