Analysis of interatomic Contacts of Structural Units in PDB entry:
1Q4O


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 1Q4O entry

There are 2 chains in PDB entry 1Q4O (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 CYS 372SER 593
B
 ASP 371SER 592
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 14 helices in PDB entry 1Q4O. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
373 388Right-handed alpha
Helix 2
2
A
396 401Right-handed 310
Helix 3
3
A
402 406Right-handed 310
Helix 4
4
A
469 471Right-handed 310
Helix 5
5
A
472 490Right-handed alpha
Helix 6
6
A
545 547Right-handed 310
Helix 7
7
A
564 571Right-handed alpha
Helix 8
8
A
573 593Right-handed alpha
Helix 9
9
B
372 387Right-handed alpha
Helix 10
10
B
396 400Right-handed 310
Helix 11
11
B
402 406Right-handed 310
Helix 12
12
B
472 490Right-handed alpha
Helix 13
13
B
564 571Right-handed alpha
Helix 14
14
B
573 592Right-handed alpha
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There are 4 sheets in PDB entry 1Q4O. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 6 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
411 417first strand
Strand 2
A
422 427anti-parallel
Strand 3
A
432 436anti-parallel
Strand 4
A
441 444anti-parallel
Strand 5
A
450 454anti-parallel
Strand 6
A
460 464anti-parallel
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There are 6 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
511 517first strand
Strand 2
A
520 525anti-parallel
Strand 3
A
530 534anti-parallel
Strand 4
A
540 544anti-parallel
Strand 5
A
549 553anti-parallel
Strand 6
A
559 563anti-parallel
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There are 6 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
411 417first strand
Strand 2
B
422 427anti-parallel
Strand 3
B
432 436anti-parallel
Strand 4
B
441 444anti-parallel
Strand 5
B
450 454anti-parallel
Strand 6
B
460 464anti-parallel
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There are 6 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
511 516first strand
Strand 2
B
520 525anti-parallel
Strand 3
B
530 534anti-parallel
Strand 4
B
540 544anti-parallel
Strand 5
B
549 553anti-parallel
Strand 6
B
559 563anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il