Analysis of interatomic Contacts of Structural Units in PDB entry:
4A1N


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 4A1N entry

There is 1 chain in PDB entry 4A1N (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 59LEU 351
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 13 helices in PDB entry 4A1N. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
108 112Right-handed 310
Helix 2
2
A
127 132Right-handed alpha
Helix 3
3
A
143 147Right-handed 310
Helix 4
4
A
150 157Right-handed alpha
Helix 5
5
A
167 173Right-handed alpha
Helix 6
6
A
173 185Right-handed alpha
Helix 7
7
A
186 188Right-handed 310
Helix 8
8
A
261 264Right-handed 310
Helix 9
9
A
268 277Right-handed alpha
Helix 10
10
A
294 296Right-handed 310
Helix 11
11
A
303 316Right-handed alpha
Helix 12
12
A
324 334Right-handed alpha
Helix 13
13
A
340 345Right-handed alpha
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There are 6 sheets in PDB entry 4A1N. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF,

There are 7 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
74 76first strand
Strand 2
A
80 85anti-parallel
Strand 3
A
90 98anti-parallel
Strand 4
A
191 199anti-parallel
Strand 5
A
227 235anti-parallel
Strand 6
A
244 252anti-parallel
Strand 7
A
266 267parallel
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There are 7 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
74 76first strand
Strand 2
A
80 85anti-parallel
Strand 3
A
90 98anti-parallel
Strand 4
A
191 199anti-parallel
Strand 5
A
227 235anti-parallel
Strand 6
A
244 252anti-parallel
Strand 7
A
290 292parallel
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There are 2 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
266 267first strand
Strand 2
A
244 252parallel
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There are 2 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
137 140first strand
Strand 2
A
163 166anti-parallel
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There are 2 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
203 204first strand
Strand 2
A
210 211anti-parallel
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There are 2 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
216 217first strand
Strand 2
A
222 223anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il