Analysis of interatomic Contacts of Structural Units in PDB entry:
3K25


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 3K25 entry

There are 2 chains in PDB entry 3K25 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MSE 1GLU 289
B
 MSE 1GLU 289
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 9 helices in PDB entry 3K25. 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 55Right-handed 310
Helix 2
2
A
74 76Right-handed 310
Helix 3
3
A
93 97Right-handed 310
Helix 4
4
A
119 124Right-handed alpha
Helix 5
5
A
261 266Right-handed alpha
Helix 6
6
B
49 54Right-handed alpha
Helix 7
7
B
74 76Right-handed 310
Helix 8
8
B
119 126Right-handed alpha
Helix 9
9
B
261 266Right-handed alpha
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There are 12 sheets in PDB entry 3K25. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

There are 5 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
2 7first strand
Strand 2
B
13 18anti-parallel
Strand 3
B
23 28anti-parallel
Strand 4
B
34 40anti-parallel
Strand 5
B
43 44anti-parallel
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There are 5 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
43 44first strand
Strand 2
A
34 40anti-parallel
Strand 3
A
23 28anti-parallel
Strand 4
A
13 18anti-parallel
Strand 5
B
2 7anti-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
66 67first strand
Strand 2
A
162 163anti-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
78 81first strand
Strand 2
A
84 87anti-parallel
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There are 8 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
100 105first strand
Strand 2
A
110 117anti-parallel
Strand 3
A
130 139anti-parallel
Strand 4
A
142 151anti-parallel
Strand 5
A
276 287anti-parallel
Strand 6
A
227 233anti-parallel
Strand 7
A
217 222anti-parallel
Strand 8
A
176 178anti-parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
157 159first strand
Strand 2
A
270 272anti-parallel
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There are 6 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
166 168first strand
Strand 2
A
250 256anti-parallel
Strand 3
A
239 245anti-parallel
Strand 4
A
205 210anti-parallel
Strand 5
A
183 186anti-parallel
Strand 6
A
192 194anti-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
66 67first strand
Strand 2
B
162 163anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
78 80first strand
Strand 2
B
85 87anti-parallel
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There are 8 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
100 105first strand
Strand 2
B
110 117anti-parallel
Strand 3
B
130 139anti-parallel
Strand 4
B
142 151anti-parallel
Strand 5
B
276 287anti-parallel
Strand 6
B
227 233anti-parallel
Strand 7
B
217 222anti-parallel
Strand 8
B
176 178anti-parallel
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There are 2 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
157 159first strand
Strand 2
B
270 272anti-parallel
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There are 6 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
166 168first strand
Strand 2
B
250 256anti-parallel
Strand 3
B
239 245anti-parallel
Strand 4
B
205 210anti-parallel
Strand 5
B
183 186anti-parallel
Strand 6
B
192 194anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il