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


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 3TWK entry

There are 2 chains in PDB entry 3TWK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PRO 2HIS 294
B
 PRO 2HIS 297
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 25 helices in PDB entry 3TWK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
3 18Right-handed alpha
Helix 2
2
A
39 48Right-handed alpha
Helix 3
3
A
92 96Right-handed 310
Helix 4
4
A
142 146Right-handed 310
Helix 5
5
A
156 165Right-handed alpha
Helix 6
6
A
170 177Right-handed alpha
Helix 7
7
A
185 197Right-handed alpha
Helix 8
8
A
203 207Right-handed 310
Helix 9
9
A
208 229Right-handed alpha
Helix 10
10
A
232 236Right-handed 310
Helix 11
11
A
240 245Right-handed 310
Helix 12
12
A
281 290Right-handed alpha
Helix 13
13
A
291 294Right-handed 310
Helix 14
14
B
3 16Right-handed alpha
Helix 15
15
B
92 96Right-handed 310
Helix 16
16
B
136 140Right-handed 310
Helix 17
17
B
142 146Right-handed 310
Helix 18
18
B
156 166Right-handed alpha
Helix 19
19
B
170 177Right-handed alpha
Helix 20
20
B
185 196Right-handed alpha
Helix 21
21
B
203 207Right-handed 310
Helix 22
22
B
208 229Right-handed alpha
Helix 23
23
B
232 236Right-handed 310
Helix 24
24
B
240 245Right-handed 310
Helix 25
25
B
281 294Right-handed alpha
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There are 8 sheets in PDB entry 3TWK. 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
23 28first strand
Strand 2
A
108 114anti-parallel
Strand 3
A
119 124anti-parallel
Strand 4
A
80 85anti-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
52 58first strand
Strand 2
A
61 66anti-parallel
Strand 3
A
71 75anti-parallel
Strand 4
A
130 134anti-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
A
253 254first strand
Strand 2
A
257 258anti-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
A
260 264first strand
Strand 2
A
267 271anti-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
B
23 27first strand
Strand 2
B
108 114anti-parallel
Strand 3
B
119 123anti-parallel
Strand 4
B
81 85anti-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
54 58first strand
Strand 2
B
61 65anti-parallel
Strand 3
B
71 75anti-parallel
Strand 4
B
130 134anti-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
B
253 254first strand
Strand 2
B
257 258anti-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
B
260 264first strand
Strand 2
B
267 271anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il