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


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 2IXI entry

There are 2 chains in PDB entry 2IXI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER -2PRO 181
B
 SER -2PRO 181
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 8 helices in PDB entry 2IXI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
32 40Right-handed alpha
Helix 2
2
A
138 140Right-handed 310
Helix 3
3
A
165 170Right-handed alpha
Helix 4
4
A
173 177Right-handed 310
Helix 5
5
B
32 40Right-handed alpha
Helix 6
6
B
138 140Right-handed 310
Helix 7
7
B
165 170Right-handed alpha
Helix 8
8
B
173 177Right-handed 310
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There are 4 sheets in PDB entry 2IXI. Click on sheet of interest to get list of strands forming it: AA, AB, AC, BA,

There are 8 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
2 5first strand
Strand 2
A
12 15anti-parallel
Strand 3
A
109 112anti-parallel
Strand 4
A
71 77anti-parallel
Strand 5
A
126 133anti-parallel
Strand 6
A
47 54anti-parallel
Strand 7
B
24 31anti-parallel
Strand 8
B
19 20anti-parallel
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There are 8 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
19 21first strand
Strand 2
A
24 31anti-parallel
Strand 3
B
47 54anti-parallel
Strand 4
B
126 133anti-parallel
Strand 5
B
71 77anti-parallel
Strand 6
B
109 112anti-parallel
Strand 7
B
12 15anti-parallel
Strand 8
B
2 5anti-parallel
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There are 5 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
97 103first strand
Strand 2
A
79 86anti-parallel
Strand 3
A
116 122anti-parallel
Strand 4
A
58 64anti-parallel
Strand 5
A
142 144anti-parallel
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There are 5 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
97 103first strand
Strand 2
B
79 86anti-parallel
Strand 3
B
116 122anti-parallel
Strand 4
B
58 64anti-parallel
Strand 5
B
142 144anti-parallel
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