Analysis of interatomic Contacts of Structural Units in PDB entry:
3I74


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 3I74 entry

There are 4 chains in PDB entry 3I74 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 113TRP 761
B
 THR 113TRP 761
C
 PHE 2LYS 4
D
 PHE 2LYS 4
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 39 helices in PDB entry 3I74. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
115 120Right-handed alpha
Helix 2
2
A
127 133Right-handed alpha
Helix 3
3
A
134 136Right-handed 310
Helix 4
4
A
151 155Right-handed 310
Helix 5
5
A
192 199Right-handed alpha
Helix 6
6
A
214 225Right-handed alpha
Helix 7
7
A
262 277Right-handed alpha
Helix 8
8
A
291 294Right-handed 310
Helix 9
9
A
295 307Right-handed alpha
Helix 10
10
A
384 389Right-handed alpha
Helix 11
11
A
406 418Right-handed alpha
Helix 12
12
A
428 434Right-handed 310
Helix 13
13
A
445 458Right-handed alpha
Helix 14
14
A
536 555Right-handed alpha
Helix 15
15
A
559 569Right-handed alpha
Helix 16
16
A
591 596Right-handed alpha
Helix 17
17
A
601 606Right-handed alpha
Helix 18
18
A
615 626Right-handed alpha
Helix 19
19
A
629 638Right-handed alpha
Helix 20
20
B
115 120Right-handed alpha
Helix 21
21
B
127 133Right-handed alpha
Helix 22
22
B
134 136Right-handed 310
Helix 23
23
B
151 155Right-handed 310
Helix 24
24
B
192 199Right-handed alpha
Helix 25
25
B
214 225Right-handed alpha
Helix 26
26
B
262 277Right-handed alpha
Helix 27
27
B
291 294Right-handed 310
Helix 28
28
B
295 307Right-handed alpha
Helix 29
29
B
384 389Right-handed alpha
Helix 30
30
B
393 396Right-handed 310
Helix 31
31
B
406 418Right-handed alpha
Helix 32
32
B
428 434Right-handed 310
Helix 33
33
B
445 458Right-handed alpha
Helix 34
34
B
536 555Right-handed alpha
Helix 35
35
B
559 570Right-handed alpha
Helix 36
36
B
591 596Right-handed alpha
Helix 37
37
B
601 606Right-handed alpha
Helix 38
38
B
615 626Right-handed alpha
Helix 39
39
B
629 638Right-handed alpha
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There are 20 sheets in PDB entry 3I74. 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, O, P, Q, R, S, T,

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
185 190first strand
Strand 2
A
249 254parallel
Strand 3
A
139 144parallel
Strand 4
A
280 283parallel
Strand 5
A
310 314parallel
Strand 6
A
333 339parallel
Strand 7
A
480 481anti-parallel
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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
185 190first strand
Strand 2
A
249 254parallel
Strand 3
A
139 144parallel
Strand 4
A
280 283parallel
Strand 5
A
310 314parallel
Strand 6
A
333 339parallel
Strand 7
A
501 504parallel
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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
228 233first strand
Strand 2
A
236 241anti-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
A
256 257first strand
Strand 2
A
260 261anti-parallel
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There are 9 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
470 472first strand
Strand 2
A
343 350anti-parallel
Strand 3
A
463 466anti-parallel
Strand 4
A
368 374anti-parallel
Strand 5
A
398 401parallel
Strand 6
A
421 425parallel
Strand 7
A
441 444parallel
Strand 8
A
355 359anti-parallel
Strand 9
A
343 350anti-parallel
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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
508 511first strand
Strand 2
A
531 534anti-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
519 521first strand
Strand 2
A
525 527anti-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
A
610 611first strand
Strand 2
A
670 680anti-parallel
Strand 3
A
715 724anti-parallel
Strand 4
A
698 703anti-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
A
657 661first strand
Strand 2
A
747 756parallel
Strand 3
A
734 741anti-parallel
Strand 4
A
686 693anti-parallel
Strand 5
A
706 709anti-parallel
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There are 7 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
185 190first strand
Strand 2
B
249 254parallel
Strand 3
B
139 144parallel
Strand 4
B
280 283parallel
Strand 5
B
310 314parallel
Strand 6
B
333 339parallel
Strand 7
B
501 504parallel
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There are 8 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
185 190first strand
Strand 2
B
249 254parallel
Strand 3
B
139 144parallel
Strand 4
B
280 283parallel
Strand 5
B
310 314parallel
Strand 6
B
333 339parallel
Strand 7
B
480 481anti-parallel
Strand 8
B
582 583parallel
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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
228 233first strand
Strand 2
B
236 241anti-parallel
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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
256 257first strand
Strand 2
B
260 261anti-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
285 286first strand
Strand 2
D
3 4anti-parallel
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There are 2 strands in O 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
470 472anti-parallel
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There are 7 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
355 357first strand
Strand 2
B
347 350anti-parallel
Strand 3
B
463 466anti-parallel
Strand 4
B
368 374anti-parallel
Strand 5
B
398 401parallel
Strand 6
B
421 425parallel
Strand 7
B
441 444parallel
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There are 2 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
508 511first strand
Strand 2
B
531 534anti-parallel
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There are 2 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
519 521first strand
Strand 2
B
525 527anti-parallel
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There are 4 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
610 611first strand
Strand 2
B
670 680anti-parallel
Strand 3
B
715 724anti-parallel
Strand 4
B
698 703anti-parallel
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There are 5 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
657 661first strand
Strand 2
B
747 756parallel
Strand 3
B
734 741anti-parallel
Strand 4
B
686 693anti-parallel
Strand 5
B
706 709anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il