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 183L entry
There is 1 chain in PDB entry 183L
(CSU analysis of residue contacts immediately below table)
Chain ID 
Initial residue  Terminal residue 
A

MET 1  LYS 162 
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There are 10
helices in PDB entry 183L. Click on helix of interest for
CSU analysis.
Helix number
 Helix ID  Chain ID 
Initial residue  Terminal residue 
Helix class 
Helix 1 
H1  A
 3 
11  Righthanded alpha 
Helix 2 
H2  A
 39 
50  Righthanded alpha 
Helix 3 
H3  A
 60 
80  Righthanded alpha 
Helix 4 
H4  A
 82 
90  Righthanded alpha 
Helix 5 
H5  A
 93 
106  Righthanded alpha 
Helix 6 
H6  A
 108 
113  Righthanded alpha 
Helix 7 
H7  A
 115 
123  Righthanded alpha 
Helix 8 
H8  A
 126 
134  Righthanded alpha 
Helix 9 
H9  A
 137 
141  Righthanded alpha 
Helix 10 
H10  A
 143 
155  Righthanded alpha 
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There is
1 sheet ( A) in PDB entry 183L.
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 
A
 25 
27  first strand 
Strand 2 
A
 31 
34  antiparallel 
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Please mail
questions/suggestions concerning this page
to
Vladimir.Sobolev@weizmann.
ac.il