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


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 2SEC entry

There are 2 chains in PDB entry 2SEC (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
E
 ALA 1GLN 275
I
 LEU 21GLY 83
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 10 helices in PDB entry 2SEC. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
EA
E
6 11Right-handed alpha
Helix 2
EB
E
13 18Right-handed alpha
Helix 3
EC
E
63 74Right-handed alpha
Helix 4
ED
E
103 117Right-handed alpha
Helix 5
EE
E
132 145Right-handed alpha
Helix 6
EF
E
220 238Right-handed alpha
Helix 7
EG
E
242 252Right-handed alpha
Helix 8
EH
E
259 264Right-handed alpha
Helix 9
EI
E
269 274Right-handed alpha
Helix 10
IA
I
31 43Right-handed alpha
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There are 3 sheets in PDB entry 2SEC. Click on sheet of interest to get list of strands forming it: S1E, S2E, S1I,

There are 7 strands in S1E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
46 50first strand
Strand 2
E
89 95parallel
Strand 3
E
26 32parallel
Strand 4
E
120 124parallel
Strand 5
E
148 153parallel
Strand 6
E
175 180parallel
Strand 7
E
198 202parallel
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There are 2 strands in S2E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
205 209first strand
Strand 2
E
213 217anti-parallel
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There are 4 strands in S1I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
22 24first strand
Strand 2
I
80 82anti-parallel
Strand 3
I
64 70anti-parallel
Strand 4
I
47 53parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il