Analysis of interatomic Contacts of Structural Units in PDB entry:
2X3B


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 2X3B entry

There are 2 chains in PDB entry 2X3B (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 23PRO 340
B
 GLY 23PRO 340
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 20 helices in PDB entry 2X3B. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
57 59Right-handed 310
Helix 2
2
A
90 92Right-handed 310
Helix 3
3
A
182 208Right-handed alpha
Helix 4
4
A
214 222Right-handed alpha
Helix 5
5
A
225 246Right-handed alpha
Helix 6
6
A
273 279Right-handed alpha
Helix 7
7
A
286 298Right-handed alpha
Helix 8
8
A
310 321Right-handed alpha
Helix 9
9
A
321 326Right-handed alpha
Helix 10
10
A
328 338Right-handed alpha
Helix 11
11
B
57 59Right-handed 310
Helix 12
12
B
90 92Right-handed 310
Helix 13
13
B
182 207Right-handed alpha
Helix 14
14
B
214 222Right-handed alpha
Helix 15
15
B
225 246Right-handed alpha
Helix 16
16
B
273 279Right-handed alpha
Helix 17
17
B
286 298Right-handed alpha
Helix 18
18
B
310 321Right-handed alpha
Helix 19
19
B
321 326Right-handed alpha
Helix 20
20
B
328 338Right-handed alpha
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There are 8 sheets in PDB entry 2X3B. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, BA, BB, BC,

There are 3 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
24 30first strand
Strand 2
A
39 46anti-parallel
Strand 3
A
102 108anti-parallel
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There are 2 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
52 55first strand
Strand 2
A
94 97anti-parallel
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There are 4 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
75 76first strand
Strand 2
A
68 72anti-parallel
Strand 3
A
119 126anti-parallel
Strand 4
A
143 151anti-parallel
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There are 5 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
83 85first strand
Strand 2
B
260 262anti-parallel
Strand 3
B
269 272anti-parallel
Strand 4
B
247 251parallel
Strand 5
B
174 178parallel
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There are 5 strands in AE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
174 178first strand
Strand 2
A
247 251parallel
Strand 3
A
269 272parallel
Strand 4
A
260 262anti-parallel
Strand 5
B
83 85anti-parallel
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There are 3 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
24 30first strand
Strand 2
B
39 46anti-parallel
Strand 3
B
102 108anti-parallel
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There are 2 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
52 55first strand
Strand 2
B
94 97anti-parallel
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There are 4 strands in BC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
75 76first strand
Strand 2
B
68 72anti-parallel
Strand 3
B
119 125anti-parallel
Strand 4
B
147 151anti-parallel
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