Analysis of interatomic Contacts of Structural Units in PDB entry:
1Q4N


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 1Q4N entry

There is 1 chain in PDB entry 1Q4N (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
X
 TYR 2LEU 496
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 19 helices in PDB entry 1Q4N. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
X
20 31Right-handed alpha
Helix 2
2
X
57 63Right-handed 310
Helix 3
3
X
75 89Right-handed alpha
Helix 4
4
X
132 136Right-handed 310
Helix 5
5
X
153 160Right-handed alpha
Helix 6
6
X
172 190Right-handed alpha
Helix 7
7
X
198 202Right-handed 310
Helix 8
8
X
203 212Right-handed alpha
Helix 9
9
X
243 248Right-handed 310
Helix 10
10
X
256 267Right-handed alpha
Helix 11
11
X
273 280Right-handed 310
Helix 12
12
X
281 285Right-handed 310
Helix 13
13
X
300 304Right-handed 310
Helix 14
14
X
308 312Right-handed 310
Helix 15
15
X
314 316Right-handed 310
Helix 16
16
X
317 331Right-handed alpha
Helix 17
17
X
384 387Right-handed 310
Helix 18
18
X
388 401Right-handed alpha
Helix 19
19
X
493 495Right-handed 310
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There are 8 sheets in PDB entry 1Q4N. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 9 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
X
12 16first strand
Strand 2
X
39 42parallel
Strand 3
X
92 97parallel
Strand 4
X
193 196parallel
Strand 5
X
229 232parallel
Strand 6
X
252 254parallel
Strand 7
X
292 294parallel
Strand 8
X
335 340parallel
Strand 9
X
12 16parallel
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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
X
101 104first strand
Strand 2
X
165 167anti-parallel
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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
X
348 349first strand
Strand 2
X
352 353anti-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
X
362 363first strand
Strand 2
X
366 367anti-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
X
406 411first strand
Strand 2
X
416 421anti-parallel
Strand 3
X
425 430anti-parallel
Strand 4
X
487 491anti-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
X
436 441first strand
Strand 2
X
474 479anti-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
X
447 450first strand
Strand 2
X
466 469anti-parallel
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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
X
457 458first strand
Strand 2
X
461 462anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il