Analysis of interatomic Contacts of Structural Units in PDB entry:
2BTQ


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 2BTQ entry

There are 2 chains in PDB entry 2BTQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 2ALA 443
B
 ARG 2SER 426
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 2BTQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
12 31Right-handed alpha
Helix 2
2
A
74 85Right-handed alpha
Helix 3
3
A
90 92Right-handed 310
Helix 4
4
A
104 110Right-handed alpha
Helix 5
5
A
111 130Right-handed alpha
Helix 6
6
A
146 163Right-handed alpha
Helix 7
7
A
176 180Right-handed 310
Helix 8
8
A
184 200Right-handed alpha
Helix 9
9
A
208 217Right-handed alpha
Helix 10
10
A
225 246Right-handed alpha
Helix 11
11
A
255 264Right-handed alpha
Helix 12
12
A
291 300Right-handed alpha
Helix 13
13
A
310 314Right-handed 310
Helix 14
14
A
329 344Right-handed alpha
Helix 15
15
A
378 397Right-handed alpha
Helix 16
16
A
399 405Right-handed alpha
Helix 17
17
A
409 433Right-handed alpha
Helix 18
18
A
433 440Right-handed alpha
Helix 19
19
B
10 29Right-handed alpha
Helix 20
20
B
101 107Right-handed alpha
Helix 21
21
B
107 127Right-handed alpha
Helix 22
22
B
146 158Right-handed alpha
Helix 23
23
B
173 177Right-handed 310
Helix 24
24
B
181 197Right-handed alpha
Helix 25
25
B
205 216Right-handed alpha
Helix 26
26
B
221 242Right-handed alpha
Helix 27
27
B
249 258Right-handed alpha
Helix 28
28
B
286 294Right-handed alpha
Helix 29
29
B
295 298Right-handed 310
Helix 30
30
B
328 335Right-handed alpha
Helix 31
31
B
374 391Right-handed alpha
Helix 32
32
B
394 400Right-handed alpha
Helix 33
33
B
404 426Right-handed alpha
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There are 4 sheets in PDB entry 2BTQ. Click on sheet of interest to get list of strands forming it: AA, AB, BA, BB,

There are 10 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
94 96first strand
Strand 2
A
68 72parallel
Strand 3
A
5 11parallel
Strand 4
A
134 141parallel
Strand 5
A
168 174parallel
Strand 6
A
202 207parallel
Strand 7
A
271 277parallel
Strand 8
A
369 376anti-parallel
Strand 9
A
316 324anti-parallel
Strand 10
A
354 357parallel
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There are 2 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
53 56first strand
Strand 2
A
63 66anti-parallel
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There are 10 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
91 93first strand
Strand 2
B
64 69parallel
Strand 3
B
3 9parallel
Strand 4
B
131 139parallel
Strand 5
B
164 171parallel
Strand 6
B
199 204parallel
Strand 7
B
265 269parallel
Strand 8
B
367 371anti-parallel
Strand 9
B
310 318anti-parallel
Strand 10
B
349 354parallel
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There are 2 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
52 56first strand
Strand 2
B
59 62anti-parallel
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