Analysis of interatomic Contacts of Structural Units in PDB entry:
2A9K


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 2A9K entry

There are 2 chains in PDB entry 2A9K (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 13ASP 182
B
 THR 45LYS 251
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 13 helices in PDB entry 2A9K. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
26 37Right-handed alpha
Helix 2
2
A
75 86Right-handed alpha
Helix 3
3
A
97 116Right-handed alpha
Helix 4
4
A
128 135Right-handed 310
Helix 5
5
A
138 149Right-handed alpha
Helix 6
6
A
163 181Right-handed alpha
Helix 7
7
B
51 67Right-handed alpha
Helix 8
8
B
69 93Right-handed alpha
Helix 9
9
B
101 115Right-handed alpha
Helix 10
10
B
131 140Right-handed 310
Helix 11
11
B
151 163Right-handed alpha
Helix 12
12
B
181 186Right-handed 310
Helix 13
13
B
204 207Right-handed 310
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There are 3 sheets in PDB entry 2A9K. Click on sheet of interest to get list of strands forming it: A, B, C,

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
49 57first strand
Strand 2
A
60 68anti-parallel
Strand 3
A
14 20parallel
Strand 4
A
88 94parallel
Strand 5
A
122 127parallel
Strand 6
A
152 155parallel
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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
B
124 130first strand
Strand 2
B
188 194anti-parallel
Strand 3
B
237 246parallel
Strand 4
B
221 230anti-parallel
Strand 5
B
166 169anti-parallel
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There are 3 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
173 176first strand
Strand 2
B
214 217anti-parallel
Strand 3
B
201 202anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il