Analysis of interatomic Contacts of Structural Units in PDB entry:
21NG


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 21NG entry

There are 2 chains in PDB entry 21NG (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ARG 133VAL 215
B
 GLY 132TYR 214
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 21NG. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
147 161Right-handed alpha
Helix 2
AA2
A
162 165Right-handed 310
Helix 3
AA3
A
187 196Right-handed alpha
Helix 4
AA4
B
147 160Right-handed alpha
Helix 5
AA5
B
161 165Right-handed 310
Helix 6
AA6
B
187 196Right-handed alpha
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There are 2 sheets in PDB entry 21NG. Click on sheet of interest to get list of strands forming it: AA1, AA2,

There are 5 strands in AA1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
169 175first strand
Strand 2
A
178 183anti-parallel
Strand 3
A
134 138anti-parallel
Strand 4
A
205 213anti-parallel
Strand 5
A
197 202anti-parallel
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There are 5 strands in AA2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
169 175first strand
Strand 2
B
178 183anti-parallel
Strand 3
B
134 138anti-parallel
Strand 4
B
205 213anti-parallel
Strand 5
B
197 202anti-parallel
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