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


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 4ALA entry

There are 3 chains in PDB entry 4ALA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
C
 ALA 300TRP 391
H
 ASP 1ARG 217
L
 ASP 1ASN 212
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 4ALA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
H
28 32Right-handed 310
Helix 2
2
H
62 65Right-handed 310
Helix 3
3
H
74 76Right-handed 310
Helix 4
4
H
87 91Right-handed 310
Helix 5
5
H
204 207Right-handed 310
Helix 6
6
L
79 83Right-handed 310
Helix 7
7
L
121 127Right-handed alpha
Helix 8
8
L
183 187Right-handed alpha
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There are 15 sheets in PDB entry 4ALA. Click on sheet of interest to get list of strands forming it: CA, CB, CC, CD, CE, HA, HB, HC, HD, LA, LB, LC, LD, LE, LF,

There are 2 strands in CA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
306 308first strand
Strand 2
C
320 326anti-parallel
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There are 2 strands in CB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
313 314first strand
Strand 2
C
320 326anti-parallel
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There are 2 strands in CC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
365 369first strand
Strand 2
C
320 326anti-parallel
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There are 2 strands in CD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
333 334first strand
Strand 2
C
357 358anti-parallel
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There are 3 strands in CE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
337 338first strand
Strand 2
C
378 380anti-parallel
Strand 3
C
387 389anti-parallel
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There are 4 strands in HA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
3 5first strand
Strand 2
H
18 25anti-parallel
Strand 3
H
78 83anti-parallel
Strand 4
H
68 73anti-parallel
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There are 6 strands in HB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
9 12first strand
Strand 2
H
111 115parallel
Strand 3
H
92 98anti-parallel
Strand 4
H
34 39anti-parallel
Strand 5
H
46 51anti-parallel
Strand 6
H
58 60anti-parallel
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There are 4 strands in HC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
124 128first strand
Strand 2
H
139 149anti-parallel
Strand 3
H
179 188anti-parallel
Strand 4
H
168 174anti-parallel
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There are 3 strands in HD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
155 158first strand
Strand 2
H
198 203anti-parallel
Strand 3
H
208 213anti-parallel
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There are 4 strands in LA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
4 5first strand
Strand 2
L
19 25anti-parallel
Strand 3
L
70 75anti-parallel
Strand 4
L
62 67anti-parallel
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There are 4 strands in LB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 14first strand
Strand 2
L
102 107parallel
Strand 3
L
84 90anti-parallel
Strand 4
L
97 98anti-parallel
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There are 6 strands in LC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 14first strand
Strand 2
L
102 107parallel
Strand 3
L
84 90anti-parallel
Strand 4
L
33 38anti-parallel
Strand 5
L
45 49anti-parallel
Strand 6
L
53 54anti-parallel
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There are 2 strands in LD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
97 98first strand
Strand 2
L
84 90anti-parallel
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There are 4 strands in LE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
114 118first strand
Strand 2
L
129 139anti-parallel
Strand 3
L
173 182anti-parallel
Strand 4
L
159 163anti-parallel
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There are 4 strands in LF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
153 155first strand
Strand 2
L
145 150anti-parallel
Strand 3
L
191 197anti-parallel
Strand 4
L
205 210anti-parallel
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