Analysis of interatomic Contacts of Structural Units in PDB entry:
4K3U


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 4K3U entry

There are 2 chains in PDB entry 4K3U (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 44ALA 393
B
 LEU 45ALA 393
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 4K3U. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
51 54Right-handed 310
Helix 2
2
A
55 66Right-handed alpha
Helix 3
3
A
79 84Right-handed alpha
Helix 4
4
A
85 100Right-handed alpha
Helix 5
5
A
238 245Right-handed 310
Helix 6
6
A
248 255Right-handed alpha
Helix 7
7
A
268 272Right-handed 310
Helix 8
8
A
276 295Right-handed alpha
Helix 9
9
A
322 337Right-handed alpha
Helix 10
10
A
344 349Right-handed alpha
Helix 11
11
A
353 360Right-handed alpha
Helix 12
12
A
371 392Right-handed alpha
Helix 13
13
B
51 54Right-handed 310
Helix 14
14
B
55 67Right-handed alpha
Helix 15
15
B
79 84Right-handed alpha
Helix 16
16
B
85 100Right-handed alpha
Helix 17
17
B
238 245Right-handed 310
Helix 18
18
B
246 247Right-handed 310
Helix 19
19
B
248 256Right-handed alpha
Helix 20
20
B
266 271Right-handed alpha
Helix 21
21
B
276 295Right-handed alpha
Helix 22
22
B
322 337Right-handed alpha
Helix 23
23
B
344 349Right-handed alpha
Helix 24
24
B
353 360Right-handed alpha
Helix 25
25
B
371 393Right-handed alpha
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There are 8 sheets in PDB entry 4K3U. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

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
46 48first strand
Strand 2
A
340 343anti-parallel
Strand 3
A
299 304parallel
Strand 4
A
260 264parallel
Strand 5
A
71 78parallel
Strand 6
A
226 233parallel
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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
103 107first strand
Strand 2
A
213 221anti-parallel
Strand 3
A
143 146anti-parallel
Strand 4
A
127 130anti-parallel
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There are 4 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
103 107first strand
Strand 2
A
213 221anti-parallel
Strand 3
A
164 173anti-parallel
Strand 4
A
195 202anti-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
120 124first strand
Strand 2
A
151 157anti-parallel
Strand 3
A
205 209anti-parallel
Strand 4
A
179 182anti-parallel
Strand 5
A
185 188anti-parallel
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There are 6 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
46 48first strand
Strand 2
B
340 343anti-parallel
Strand 3
B
299 304parallel
Strand 4
B
260 264parallel
Strand 5
B
71 78parallel
Strand 6
B
226 233parallel
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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
103 107first strand
Strand 2
B
213 221anti-parallel
Strand 3
B
143 146anti-parallel
Strand 4
B
127 130anti-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
103 107first strand
Strand 2
B
213 221anti-parallel
Strand 3
B
164 173anti-parallel
Strand 4
B
195 202anti-parallel
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There are 5 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
120 124first strand
Strand 2
B
151 157anti-parallel
Strand 3
B
205 209anti-parallel
Strand 4
B
179 182anti-parallel
Strand 5
B
185 188anti-parallel
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