Analysis of interatomic Contacts of Structural Units in PDB entry:
4L9A


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 4L9A entry

There are 2 chains in PDB entry 4L9A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 3LEU 275
B
 ALA 2HIS 272
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 26 helices in PDB entry 4L9A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
37 42Right-handed alpha
Helix 2
2
A
42 47Right-handed alpha
Helix 3
3
A
75 90Right-handed alpha
Helix 4
4
A
102 114Right-handed alpha
Helix 5
5
A
128 135Right-handed alpha
Helix 6
6
A
141 151Right-handed alpha
Helix 7
7
A
153 169Right-handed alpha
Helix 8
8
A
170 190Right-handed alpha
Helix 9
9
A
204 209Right-handed 310
Helix 10
10
A
223 225Right-handed 310
Helix 11
11
A
226 232Right-handed alpha
Helix 12
12
A
252 257Right-handed alpha
Helix 13
13
A
257 271Right-handed alpha
Helix 14
14
B
37 42Right-handed alpha
Helix 15
15
B
42 47Right-handed alpha
Helix 16
16
B
75 90Right-handed alpha
Helix 17
17
B
103 114Right-handed alpha
Helix 18
18
B
128 141Right-handed alpha
Helix 19
19
B
142 145Right-handed 310
Helix 20
20
B
154 169Right-handed alpha
Helix 21
21
B
170 189Right-handed alpha
Helix 22
22
B
204 208Right-handed 310
Helix 23
23
B
223 225Right-handed 310
Helix 24
24
B
226 232Right-handed alpha
Helix 25
25
B
252 257Right-handed alpha
Helix 26
26
B
257 271Right-handed alpha
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There are 2 sheets in PDB entry 4L9A. Click on sheet of interest to get list of strands forming it: A, B,

There are 8 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
5 9first strand
Strand 2
A
16 21anti-parallel
Strand 3
A
54 58anti-parallel
Strand 4
A
26 30parallel
Strand 5
A
94 100parallel
Strand 6
A
117 124parallel
Strand 7
A
218 222parallel
Strand 8
A
243 246parallel
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There are 8 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
5 9first strand
Strand 2
B
16 21anti-parallel
Strand 3
B
54 58anti-parallel
Strand 4
B
26 30parallel
Strand 5
B
94 100parallel
Strand 6
B
117 124parallel
Strand 7
B
218 222parallel
Strand 8
B
243 246parallel
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