Analysis of interatomic Contacts of Structural Units in PDB entry:
3I2A


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 3I2A entry

There are 2 chains in PDB entry 3I2A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 0LYS 179
B
 GLY 200LYS 379
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 4 helices in PDB entry 3I2A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
2 6Right-handed 310
Helix 2
2
A
113 118Right-handed alpha
Helix 3
3
B
227 231Right-handed 310
Helix 4
4
B
313 318Right-handed alpha
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There are 7 sheets in PDB entry 3I2A. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

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
79 82first strand
Strand 2
A
61 64anti-parallel
Strand 3
A
20 25anti-parallel
Strand 4
A
173 177anti-parallel
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There are 2 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
34 37first strand
Strand 2
A
47 50anti-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
95 99first strand
Strand 2
A
102 106anti-parallel
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There are 4 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 125first strand
Strand 2
A
132 137anti-parallel
Strand 3
A
149 155anti-parallel
Strand 4
A
161 166anti-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
279 282first strand
Strand 2
B
261 264anti-parallel
Strand 3
B
219 225anti-parallel
Strand 4
B
372 377anti-parallel
Strand 5
B
332 337anti-parallel
Strand 6
B
320 325anti-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
234 237first strand
Strand 2
B
247 250anti-parallel
Strand 3
B
361 365anti-parallel
Strand 4
B
351 355anti-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
291 297first strand
Strand 2
B
304 308anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il