Analysis of interatomic Contacts of Structural Units in PDB entry:
3BTN


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 3BTN entry

There are 2 chains in PDB entry 3BTN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 8CYS 435
B
 ALA 8SER 434
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 32 helices in PDB entry 3BTN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
20 35Right-handed alpha
Helix 2
2
A
45 59Right-handed alpha
Helix 3
3
A
69 71Right-handed 310
Helix 4
4
A
73 84Right-handed alpha
Helix 5
5
A
91 101Right-handed alpha
Helix 6
6
A
104 106Right-handed 310
Helix 7
7
A
116 127Right-handed alpha
Helix 8
8
A
135 146Right-handed alpha
Helix 9
9
A
173 188Right-handed alpha
Helix 10
10
A
206 225Right-handed alpha
Helix 11
11
A
241 260Right-handed alpha
Helix 12
12
A
273 278Right-handed alpha
Helix 13
13
A
324 329Right-handed 310
Helix 14
14
A
393 397Right-handed 310
Helix 15
15
A
409 418Right-handed alpha
Helix 16
16
A
419 427Right-handed 310
Helix 17
17
B
20 34Right-handed alpha
Helix 18
18
B
45 60Right-handed alpha
Helix 19
19
B
69 71Right-handed 310
Helix 20
20
B
73 84Right-handed alpha
Helix 21
21
B
91 101Right-handed alpha
Helix 22
22
B
104 106Right-handed 310
Helix 23
23
B
116 127Right-handed alpha
Helix 24
24
B
135 146Right-handed alpha
Helix 25
25
B
173 188Right-handed alpha
Helix 26
26
B
205 225Right-handed alpha
Helix 27
27
B
241 260Right-handed alpha
Helix 28
28
B
273 278Right-handed alpha
Helix 29
29
B
324 328Right-handed 310
Helix 30
30
B
393 397Right-handed 310
Helix 31
31
B
409 418Right-handed alpha
Helix 32
32
B
419 427Right-handed 310
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There are 6 sheets in PDB entry 3BTN. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
337 338first strand
Strand 2
A
378 381anti-parallel
Strand 3
A
281 291anti-parallel
Strand 4
A
312 316anti-parallel
Strand 5
A
348 354parallel
Strand 6
A
363 371anti-parallel
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There are 7 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
337 338first strand
Strand 2
A
378 381anti-parallel
Strand 3
A
281 291anti-parallel
Strand 4
A
40 44anti-parallel
Strand 5
A
402 408parallel
Strand 6
A
10 15parallel
Strand 7
A
429 433parallel
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There are 9 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
62 67first strand
Strand 2
A
86 89parallel
Strand 3
A
108 110parallel
Strand 4
A
130 133parallel
Strand 5
A
150 154parallel
Strand 6
A
190 195parallel
Strand 7
A
231 233parallel
Strand 8
A
267 270parallel
Strand 9
A
62 67parallel
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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
336 338first strand
Strand 2
B
378 381anti-parallel
Strand 3
B
281 291anti-parallel
Strand 4
B
312 316anti-parallel
Strand 5
B
348 354parallel
Strand 6
B
363 371anti-parallel
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There are 7 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
336 338first strand
Strand 2
B
378 381anti-parallel
Strand 3
B
281 291anti-parallel
Strand 4
B
40 44anti-parallel
Strand 5
B
402 408parallel
Strand 6
B
10 15parallel
Strand 7
B
429 433parallel
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There are 9 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
62 67first strand
Strand 2
B
86 89parallel
Strand 3
B
108 110parallel
Strand 4
B
130 133parallel
Strand 5
B
150 154parallel
Strand 6
B
190 195parallel
Strand 7
B
231 233parallel
Strand 8
B
267 270parallel
Strand 9
B
62 67parallel
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