Analysis of interatomic Contacts of Structural Units in PDB entry:
3L20


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 3L20 entry

There are 2 chains in PDB entry 3L20 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY -2GLN 151
B
 TYR 3TYR 147
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 6 helices in PDB entry 3L20. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
15 27Right-handed alpha
Helix 2
2
A
48 54Right-handed alpha
Helix 3
3
A
94 109Right-handed alpha
Helix 4
4
B
15 27Right-handed alpha
Helix 5
5
B
48 53Right-handed alpha
Helix 6
6
B
94 109Right-handed alpha
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There are 2 sheets in PDB entry 3L20. Click on sheet of interest to get list of strands forming it: A, B,

There are 8 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
30 36first strand
Strand 2
A
56 63anti-parallel
Strand 3
A
66 72anti-parallel
Strand 4
A
6 13parallel
Strand 5
B
84 91anti-parallel
Strand 6
B
139 145parallel
Strand 7
B
128 133anti-parallel
Strand 8
B
115 122anti-parallel
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There are 8 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
115 122first strand
Strand 2
A
128 133anti-parallel
Strand 3
A
139 145anti-parallel
Strand 4
A
84 91parallel
Strand 5
B
6 13anti-parallel
Strand 6
B
66 72parallel
Strand 7
B
56 63anti-parallel
Strand 8
B
30 36anti-parallel
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