Analysis of interatomic Contacts of Structural Units in PDB entry:
3A55


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 3A55 entry

There are 2 chains in PDB entry 3A55 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 20PHE 299
B
 LYS 20PHE 299
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 16 helices in PDB entry 3A55. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
55 57Right-handed 310
Helix 2
2
A
58 72Right-handed alpha
Helix 3
3
A
93 104Right-handed alpha
Helix 4
4
A
121 134Right-handed alpha
Helix 5
5
A
155 170Right-handed alpha
Helix 6
6
A
227 235Right-handed alpha
Helix 7
7
A
236 241Right-handed 310
Helix 8
8
A
270 281Right-handed alpha
Helix 9
9
B
55 57Right-handed 310
Helix 10
10
B
58 72Right-handed alpha
Helix 11
11
B
93 104Right-handed alpha
Helix 12
12
B
121 134Right-handed alpha
Helix 13
13
B
155 170Right-handed alpha
Helix 14
14
B
227 235Right-handed alpha
Helix 15
15
B
236 241Right-handed 310
Helix 16
16
B
270 280Right-handed alpha
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There are 8 sheets in PDB entry 3A55. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 3 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
22 27first strand
Strand 2
A
75 79anti-parallel
Strand 3
A
86 91anti-parallel
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There are 3 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
29 35first strand
Strand 2
A
38 43anti-parallel
Strand 3
A
49 52anti-parallel
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There are 8 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
118 119first strand
Strand 2
A
191 205parallel
Strand 3
A
175 186anti-parallel
Strand 4
A
244 252anti-parallel
Strand 5
B
244 252anti-parallel
Strand 6
B
175 186anti-parallel
Strand 7
B
191 205anti-parallel
Strand 8
B
118 119parallel
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There are 8 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
211 216first strand
Strand 2
A
191 205anti-parallel
Strand 3
A
175 186anti-parallel
Strand 4
A
244 252anti-parallel
Strand 5
B
244 252anti-parallel
Strand 6
B
175 186anti-parallel
Strand 7
B
191 205anti-parallel
Strand 8
B
211 216anti-parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
255 258first strand
Strand 2
A
264 266anti-parallel
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There are 3 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
22 27first strand
Strand 2
B
75 79anti-parallel
Strand 3
B
86 91anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
29 33first strand
Strand 2
B
39 43anti-parallel
Strand 3
B
49 52anti-parallel
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There are 2 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
255 258first strand
Strand 2
B
264 266anti-parallel
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