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


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 4QAN entry

There are 2 chains in PDB entry 4QAN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 0ALA 415
B
 SER 44ALA 415
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 33 helices in PDB entry 4QAN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
0 37Right-handed alpha
Helix 2
2
A
56 70Right-handed alpha
Helix 3
3
A
72 79Right-handed alpha
Helix 4
4
A
81 89Right-handed alpha
Helix 5
5
A
90 98Right-handed alpha
Helix 6
6
A
102 106Right-handed 310
Helix 7
7
A
113 115Right-handed 310
Helix 8
8
A
116 139Right-handed alpha
Helix 9
9
A
141 145Right-handed 310
Helix 10
10
A
155 166Right-handed alpha
Helix 11
11
A
250 265Right-handed alpha
Helix 12
12
A
266 273Right-handed alpha
Helix 13
13
A
283 305Right-handed alpha
Helix 14
14
A
316 327Right-handed alpha
Helix 15
15
A
328 333Right-handed 310
Helix 16
16
A
386 390Right-handed 310
Helix 17
17
A
400 409Right-handed alpha
Helix 18
18
B
45 70Right-handed alpha
Helix 19
19
B
72 79Right-handed alpha
Helix 20
20
B
81 89Right-handed alpha
Helix 21
21
B
90 98Right-handed alpha
Helix 22
22
B
102 106Right-handed 310
Helix 23
23
B
113 115Right-handed 310
Helix 24
24
B
116 139Right-handed alpha
Helix 25
25
B
141 145Right-handed 310
Helix 26
26
B
155 167Right-handed alpha
Helix 27
27
B
250 264Right-handed alpha
Helix 28
28
B
266 273Right-handed alpha
Helix 29
29
B
283 306Right-handed alpha
Helix 30
30
B
316 327Right-handed alpha
Helix 31
31
B
328 335Right-handed 310
Helix 32
32
B
386 390Right-handed 310
Helix 33
33
B
400 409Right-handed alpha
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There are 8 sheets in PDB entry 4QAN. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 4 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
146 152first strand
Strand 2
A
170 180anti-parallel
Strand 3
A
183 194anti-parallel
Strand 4
A
197 202anti-parallel
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There are 4 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
146 152first strand
Strand 2
A
170 180anti-parallel
Strand 3
A
183 194anti-parallel
Strand 4
A
217 218anti-parallel
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There are 3 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
379 383first strand
Strand 2
A
364 374anti-parallel
Strand 3
A
397 399anti-parallel
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There are 5 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
379 383first strand
Strand 2
A
364 374anti-parallel
Strand 3
A
352 361anti-parallel
Strand 4
A
335 344anti-parallel
Strand 5
A
413 414parallel
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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
B
146 152first strand
Strand 2
B
170 180anti-parallel
Strand 3
B
183 194anti-parallel
Strand 4
B
197 202anti-parallel
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There are 4 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
146 152first strand
Strand 2
B
170 180anti-parallel
Strand 3
B
183 194anti-parallel
Strand 4
B
218 220anti-parallel
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There are 4 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
336 342first strand
Strand 2
B
352 361anti-parallel
Strand 3
B
364 374anti-parallel
Strand 4
B
379 383anti-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
B
336 342first strand
Strand 2
B
352 361anti-parallel
Strand 3
B
364 374anti-parallel
Strand 4
B
397 399anti-parallel
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