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


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 1QAS entry

There are 2 chains in PDB entry 1QAS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 TYR 205ASP 756
B
 LYS 206ASP 756
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 44 helices in PDB entry 1QAS. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
212 222Right-handed alpha
Helix 2
2
A
230 239Right-handed alpha
Helix 3
3
A
248 258Right-handed alpha
Helix 4
4
A
262 266Right-handed alpha
Helix 5
5
A
272 280Right-handed alpha
Helix 6
6
A
289 292Right-handed 310
Helix 7
7
A
302 304Right-handed 310
Helix 8
8
A
326 334Right-handed alpha
Helix 9
9
A
348 350Right-handed 310
Helix 10
10
A
366 376Right-handed alpha
Helix 11
11
A
395 408Right-handed alpha
Helix 12
12
A
410 412Right-handed 310
Helix 13
13
A
429 431Right-handed 310
Helix 14
14
A
490 495Right-handed alpha
Helix 15
15
A
525 534Right-handed alpha
Helix 16
16
A
536 545Right-handed 310
Helix 17
17
A
565 570Right-handed alpha
Helix 18
18
A
584 594Right-handed alpha
Helix 19
19
A
596 598Right-handed 310
Helix 20
20
A
606 608Right-handed 310
Helix 21
21
A
695 697Right-handed 310
Helix 22
22
A
723 725Right-handed 310
Helix 23
23
B
212 222Right-handed alpha
Helix 24
24
B
230 239Right-handed alpha
Helix 25
25
B
247 258Right-handed alpha
Helix 26
26
B
262 266Right-handed alpha
Helix 27
27
B
273 280Right-handed alpha
Helix 28
28
B
289 292Right-handed 310
Helix 29
29
B
302 304Right-handed 310
Helix 30
30
B
326 334Right-handed alpha
Helix 31
31
B
348 350Right-handed 310
Helix 32
32
B
366 376Right-handed alpha
Helix 33
33
B
395 408Right-handed alpha
Helix 34
34
B
410 412Right-handed 310
Helix 35
35
B
429 431Right-handed 310
Helix 36
36
B
490 495Right-handed alpha
Helix 37
37
B
525 534Right-handed alpha
Helix 38
38
B
536 545Right-handed 310
Helix 39
39
B
565 570Right-handed alpha
Helix 40
40
B
584 594Right-handed alpha
Helix 41
41
B
596 598Right-handed 310
Helix 42
42
B
606 608Right-handed 310
Helix 43
43
B
695 697Right-handed 310
Helix 44
44
B
723 725Right-handed 310
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There are 10 sheets in PDB entry 1QAS. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J,

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
305 307first strand
Strand 2
A
601 603anti-parallel
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There are 3 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
339 344first strand
Strand 2
A
385 391parallel
Strand 3
A
435 438parallel
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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
521 524first strand
Strand 2
A
548 551parallel
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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
A
686 692first strand
Strand 2
A
629 639anti-parallel
Strand 3
A
747 755anti-parallel
Strand 4
A
729 734anti-parallel
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There are 4 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
668 671first strand
Strand 2
A
654 661anti-parallel
Strand 3
A
699 706anti-parallel
Strand 4
A
714 722anti-parallel
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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
601 603first strand
Strand 2
B
305 310anti-parallel
Strand 3
B
574 577parallel
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There are 3 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
339 344first strand
Strand 2
B
385 391parallel
Strand 3
B
435 438parallel
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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
521 524first strand
Strand 2
B
548 551parallel
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There are 4 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
686 692first strand
Strand 2
B
629 639anti-parallel
Strand 3
B
747 755anti-parallel
Strand 4
B
729 734anti-parallel
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There are 4 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
668 671first strand
Strand 2
B
654 661anti-parallel
Strand 3
B
699 706anti-parallel
Strand 4
B
714 722anti-parallel
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