Analysis of interatomic
Contacts of Structural
Units in PDB entry:
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, 327332).
This page provides analyses of
contacts formed by:
For analysis of ligandprotein contacts, use:
3D structure can be seen in additional window with
STING software for 1GEC entry
There are 2 chains in PDB entry 1GEC
(CSU analysis of residue contacts immediately below table)
Chain ID 
Initial residue  Terminal residue 
E

LEU 1  ASN 216 
I

LEU 2  GLY 4 
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There are 7
helices in PDB entry 1GEC. Click on helix of interest for
CSU analysis.
Helix number
 Helix ID  Chain ID 
Initial residue  Terminal residue 
Helix class 
Helix 1 
1  E
 25 
42  Righthanded alpha 
Helix 2 
2  E
 50 
56  Righthanded alpha 
Helix 3 
3  E
 68 
78  Righthanded alpha 
Helix 4 
4  E
 97 
100  Righthanded alpha 
Helix 5 
5  E
 118 
127  Righthanded alpha 
Helix 6 
6  E
 139 
142  Righthanded alpha 
Helix 7 
7  E
 203 
205  Righthanded 310 
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There are
2 sheets in PDB entry 1GEC. Click on sheet of
interest to get list of strands forming it:
A,
B,
There are 2
strands in A sheet. Click on strand of interest
for CSU analysis.
Strand number
 Chain ID 
Initial residue  Terminal residue 
Strand sense 
Strand 1 
E
 109 
112  first strand 
Strand 2 
E
 211 
214  antiparallel 
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There are 4
strands in B sheet. Click on strand of interest
for CSU analysis.
Strand number
 Chain ID 
Initial residue  Terminal residue 
Strand sense 
Strand 1 
E
 130 
134  first strand 
Strand 2 
E
 159 
169  antiparallel 
Strand 3 
E
 172 
178  antiparallel 
Strand 4 
E
 190 
194  antiparallel 
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Please mail
questions/suggestions concerning this page
to
Vladimir.Sobolev@weizmann.
ac.il