Analysis of interatomic Contacts of Structural Units in PDB entry:
1A1N


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 1A1N entry

There are 3 chains in PDB entry 1A1N (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 1PRO 276
B
 ILE 1MET 99
C
 VAL 1TYR 8
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 8 helices in PDB entry 1A1N. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
50 52Right-handed 310
Helix 2
2
A
57 84Right-handed alpha
Helix 3
3
A
140 150Right-handed alpha
Helix 4
4
A
152 161Right-handed alpha
Helix 5
5
A
163 174Right-handed alpha
Helix 6
6
A
176 179Right-handed alpha
Helix 7
7
A
225 227Right-handed 310
Helix 8
8
A
254 256Right-handed 310
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There are 5 sheets in PDB entry 1A1N. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

There are 7 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
31 37first strand
Strand 2
A
21 28anti-parallel
Strand 3
A
3 12anti-parallel
Strand 4
A
94 103anti-parallel
Strand 5
A
109 118anti-parallel
Strand 6
A
121 126anti-parallel
Strand 7
A
133 135anti-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
186 193first strand
Strand 2
A
198 206anti-parallel
Strand 3
A
243 250anti-parallel
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There are 3 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
214 219first strand
Strand 2
A
257 262anti-parallel
Strand 3
A
270 272anti-parallel
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There are 3 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
6 11first strand
Strand 2
B
20 30anti-parallel
Strand 3
B
62 71anti-parallel
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There are 3 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
36 41first strand
Strand 2
B
78 83anti-parallel
Strand 3
B
91 94anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il