Analysis of interatomic Contacts of Structural Units in PDB entry:
4AS4


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 4AS4 entry

There are 2 chains in PDB entry 4AS4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 3GLU 276
B
 ASP 3GLU 276
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 18 helices in PDB entry 4AS4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
3 27Right-handed alpha
Helix 2
2
A
44 62Right-handed alpha
Helix 3
3
A
70 75Right-handed alpha
Helix 4
4
A
94 101Right-handed alpha
Helix 5
5
A
153 156Right-handed 310
Helix 6
6
A
168 184Right-handed alpha
Helix 7
7
A
195 205Right-handed alpha
Helix 8
8
A
217 231Right-handed alpha
Helix 9
9
A
255 266Right-handed alpha
Helix 10
10
B
5 27Right-handed alpha
Helix 11
11
B
44 62Right-handed alpha
Helix 12
12
B
70 75Right-handed alpha
Helix 13
13
B
94 101Right-handed alpha
Helix 14
14
B
153 156Right-handed 310
Helix 15
15
B
168 184Right-handed alpha
Helix 16
16
B
195 205Right-handed alpha
Helix 17
17
B
217 231Right-handed alpha
Helix 18
18
B
255 266Right-handed alpha
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There are 6 sheets in PDB entry 4AS4. Click on sheet of interest to get list of strands forming it: AA, AB, AC, BA, BB, BC,

There are 2 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
34 35first strand
Strand 2
A
42 43anti-parallel
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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
66 69first strand
Strand 2
A
86 93parallel
Strand 3
A
106 113anti-parallel
Strand 4
A
116 124anti-parallel
Strand 5
A
129 134anti-parallel
Strand 6
A
138 141anti-parallel
Strand 7
A
144 145anti-parallel
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There are 5 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
189 191first strand
Strand 2
A
158 160parallel
Strand 3
A
210 214parallel
Strand 4
A
249 253anti-parallel
Strand 5
A
234 236anti-parallel
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There are 2 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
34 35first strand
Strand 2
B
42 43anti-parallel
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There are 7 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
66 69first strand
Strand 2
B
86 93parallel
Strand 3
B
106 113anti-parallel
Strand 4
B
116 124anti-parallel
Strand 5
B
129 134anti-parallel
Strand 6
B
138 141anti-parallel
Strand 7
B
144 145anti-parallel
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There are 5 strands in BC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
189 191first strand
Strand 2
B
158 160parallel
Strand 3
B
210 214parallel
Strand 4
B
249 253anti-parallel
Strand 5
B
234 236anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il