Analysis of interatomic Contacts of Structural Units in PDB entry:
1TW3


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 1TW3 entry

There are 2 chains in PDB entry 1TW3 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 12ALA 351
B
 GLN 12ALA 351
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 43 helices in PDB entry 1TW3. 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 24Right-handed alpha
Helix 2
2
A
25 37Right-handed alpha
Helix 3
3
A
38 45Right-handed alpha
Helix 4
4
A
49 58Right-handed alpha
Helix 5
5
A
60 74Right-handed alpha
Helix 6
6
A
90 95Right-handed 310
Helix 7
7
A
101 106Right-handed alpha
Helix 8
8
A
110 116Right-handed alpha
Helix 9
9
A
117 120Right-handed 310
Helix 10
10
A
121 129Right-handed alpha
Helix 11
11
A
132 138Right-handed alpha
Helix 12
12
A
140 147Right-handed alpha
Helix 13
13
A
148 160Right-handed alpha
Helix 14
14
A
167 174Right-handed alpha
Helix 15
15
A
190 200Right-handed alpha
Helix 16
16
A
212 224Right-handed alpha
Helix 17
17
A
253 257Right-handed 310
Helix 18
18
A
258 272Right-handed alpha
Helix 19
19
A
287 291Right-handed 310
Helix 20
20
A
293 308Right-handed alpha
Helix 21
21
A
313 324Right-handed alpha
Helix 22
22
B
12 23Right-handed alpha
Helix 23
23
B
25 38Right-handed alpha
Helix 24
24
B
38 45Right-handed alpha
Helix 25
25
B
49 58Right-handed alpha
Helix 26
26
B
60 74Right-handed alpha
Helix 27
27
B
90 95Right-handed 310
Helix 28
28
B
101 106Right-handed alpha
Helix 29
29
B
110 117Right-handed alpha
Helix 30
30
B
118 120Right-handed 310
Helix 31
31
B
121 129Right-handed alpha
Helix 32
32
B
132 138Right-handed alpha
Helix 33
33
B
140 147Right-handed alpha
Helix 34
34
B
148 160Right-handed alpha
Helix 35
35
B
162 167Right-handed alpha
Helix 36
36
B
167 174Right-handed alpha
Helix 37
37
B
190 200Right-handed alpha
Helix 38
38
B
212 224Right-handed alpha
Helix 39
39
B
253 257Right-handed 310
Helix 40
40
B
258 272Right-handed alpha
Helix 41
41
B
287 291Right-handed 310
Helix 42
42
B
293 308Right-handed alpha
Helix 43
43
B
313 324Right-handed alpha
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There are 4 sheets in PDB entry 1TW3. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 2 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
77 81first strand
Strand 2
A
84 87anti-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
230 234first strand
Strand 2
A
204 209parallel
Strand 3
A
181 185parallel
Strand 4
A
245 251parallel
Strand 5
A
273 283parallel
Strand 6
A
342 350anti-parallel
Strand 7
A
326 335anti-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
B
77 79first strand
Strand 2
B
85 87anti-parallel
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There are 7 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
230 234first strand
Strand 2
B
204 209parallel
Strand 3
B
181 185parallel
Strand 4
B
245 251parallel
Strand 5
B
273 283parallel
Strand 6
B
343 350anti-parallel
Strand 7
B
326 334anti-parallel
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