Analysis of interatomic Contacts of Structural Units in PDB entry:
1B23


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 1B23 entry

There are 8 chains in PDB entry 1B23 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
R
 G 1 U 7
R
 A 9 G 19
R
 A 22 A 31
R
 U 33 A 36
R
 A 38 A 38
R
 C 40 G 53
R
 C 56 A 76
P
 ALA 1GLU 405
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 1B23. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
P
24 38Right-handed alpha
Helix 2
2
P
47 50Right-handed alpha
Helix 3
3
P
54 59Right-handed alpha
Helix 4
4
P
86 98Right-handed 310
Helix 5
5
P
114 126Right-handed alpha
Helix 6
6
P
138 140Right-handed 310
Helix 7
7
P
144 161Right-handed alpha
Helix 8
8
P
175 184Right-handed alpha
Helix 9
9
P
194 209Right-handed alpha
Helix 10
10
P
325 327Right-handed 310
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There are 5 sheets in PDB entry 1B23. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

There are 6 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
170 172first strand
Strand 2
P
130 136parallel
Strand 3
P
101 107parallel
Strand 4
P
10 17parallel
Strand 5
P
75 81parallel
Strand 6
P
66 71anti-parallel
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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
P
222 224first strand
Strand 2
P
303 306anti-parallel
Strand 3
P
252 256anti-parallel
Strand 4
P
264 266anti-parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
227 231first strand
Strand 2
P
235 241anti-parallel
Strand 3
P
285 290anti-parallel
Strand 4
P
267 270anti-parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
246 248first strand
Strand 2
P
279 281anti-parallel
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There are 7 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
P
351 354first strand
Strand 2
P
367 374anti-parallel
Strand 3
P
315 322anti-parallel
Strand 4
P
393 402anti-parallel
Strand 5
P
385 390anti-parallel
Strand 6
P
341 344anti-parallel
Strand 7
P
347 350anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il