Analysis of interatomic Contacts of Structural Units in PDB entry:
1A5A


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 1A5A entry

There are 2 chains in PDB entry 1A5A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1ALA 268
B
 THR 3LEU 391
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 33 helices in PDB entry 1A5A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
2 13Right-handed alpha
Helix 2
2
A
30 43Right-handed alpha
Helix 3
3
A
62 73Right-handed alpha
Helix 4
4
A
78 91Right-handed alpha
Helix 5
5
A
103 107Right-handed alpha
Helix 6
6
A
111 121Right-handed alpha
Helix 7
7
A
133 135Right-handed 310
Helix 8
8
A
137 145Right-handed alpha
Helix 9
9
A
160 169Right-handed alpha
Helix 10
10
A
193 202Right-handed alpha
Helix 11
11
A
217 226Right-handed alpha
Helix 12
12
A
235 246Right-handed alpha
Helix 13
13
A
248 266Right-handed alpha
Helix 14
14
B
19 37Right-handed alpha
Helix 15
15
B
39 51Right-handed alpha
Helix 16
16
B
63 66Right-handed alpha
Helix 17
17
B
78 80Right-handed 310
Helix 18
18
B
89 100Right-handed alpha
Helix 19
19
B
114 125Right-handed alpha
Helix 20
20
B
136 139Right-handed alpha
Helix 21
21
B
143 151Right-handed alpha
Helix 22
22
B
166 180Right-handed alpha
Helix 23
23
B
197 203Right-handed alpha
Helix 24
24
B
207 219Right-handed alpha
Helix 25
25
B
235 244Right-handed alpha
Helix 26
26
B
262 264Right-handed 310
Helix 27
27
B
270 273Right-handed alpha
Helix 28
28
B
302 304Right-handed 310
Helix 29
29
B
311 318Right-handed alpha
Helix 30
30
B
329 343Right-handed alpha
Helix 31
31
B
351 363Right-handed alpha
Helix 32
32
B
381 383Right-handed 310
Helix 33
33
B
386 389Right-handed alpha
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There are 5 sheets in PDB entry 1A5A. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

There are 5 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
230 233first strand
Strand 2
A
18 24parallel
Strand 3
A
47 51parallel
Strand 4
A
96 101parallel
Strand 5
A
125 128parallel
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There are 2 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
174 176first strand
Strand 2
A
208 210parallel
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There are 6 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
59 61first strand
Strand 2
B
71 77anti-parallel
Strand 3
B
370 376parallel
Strand 4
B
226 230parallel
Strand 5
B
251 259parallel
Strand 6
B
322 328parallel
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There are 4 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
184 186first strand
Strand 2
B
105 110parallel
Strand 3
B
129 135parallel
Strand 4
B
155 159parallel
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There are 2 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
275 279first strand
Strand 2
B
282 286anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il