Analysis of interatomic Contacts of Structural Units in PDB entry:
1A3X


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 1A3X entry

There are 2 chains in PDB entry 1A3X (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1VAL 500
B
 MET 1VAL 500
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 40 helices in PDB entry 1A3X. 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 7Right-handed alpha
Helix 2
2
A
34 43Right-handed alpha
Helix 3
3
A
57 73Right-handed alpha
Helix 4
4
A
133 136Right-handed alpha
Helix 5
5
A
193 204Right-handed alpha
Helix 6
6
A
218 228Right-handed alpha
Helix 7
7
A
230 232Right-handed 310
Helix 8
8
A
244 247Right-handed alpha
Helix 9
9
A
250 256Right-handed alpha
Helix 10
10
A
264 270Right-handed alpha
Helix 11
11
A
273 290Right-handed alpha
Helix 12
12
A
302 305Right-handed 310
Helix 13
13
A
312 323Right-handed alpha
Helix 14
14
A
333 336Right-handed alpha
Helix 15
15
A
341 354Right-handed alpha
Helix 16
16
A
361 369Right-handed alpha
Helix 17
17
A
378 393Right-handed alpha
Helix 18
18
A
407 414Right-handed alpha
Helix 19
19
A
427 435Right-handed alpha
Helix 20
20
A
456 470Right-handed alpha
Helix 21
21
B
3 7Right-handed alpha
Helix 22
22
B
34 43Right-handed alpha
Helix 23
23
B
57 73Right-handed alpha
Helix 24
24
B
133 136Right-handed alpha
Helix 25
25
B
193 204Right-handed alpha
Helix 26
26
B
218 228Right-handed alpha
Helix 27
27
B
230 232Right-handed 310
Helix 28
28
B
244 247Right-handed alpha
Helix 29
29
B
250 256Right-handed alpha
Helix 30
30
B
264 270Right-handed alpha
Helix 31
31
B
273 290Right-handed alpha
Helix 32
32
B
302 305Right-handed 310
Helix 33
33
B
312 323Right-handed alpha
Helix 34
34
B
333 336Right-handed alpha
Helix 35
35
B
341 356Right-handed alpha
Helix 36
36
B
361 369Right-handed alpha
Helix 37
37
B
378 393Right-handed alpha
Helix 38
38
B
407 413Right-handed alpha
Helix 39
39
B
427 435Right-handed alpha
Helix 40
40
B
456 470Right-handed alpha
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There are 8 sheets in PDB entry 1A3X. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

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
108 112first strand
Strand 2
A
162 167anti-parallel
Strand 3
A
150 154anti-parallel
Strand 4
A
142 145anti-parallel
Strand 5
A
179 182anti-parallel
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There are 3 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
238 241first strand
Strand 2
A
259 263parallel
Strand 3
A
293 297parallel
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There are 2 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
420 424first strand
Strand 2
A
439 443parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
23 26first strand
Strand 2
A
45 49parallel
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There are 3 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
80 84first strand
Strand 2
B
45 51parallel
Strand 3
B
23 26parallel
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There are 5 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
108 112first strand
Strand 2
B
162 167anti-parallel
Strand 3
B
150 154anti-parallel
Strand 4
B
142 145anti-parallel
Strand 5
B
179 182anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
238 241first strand
Strand 2
B
259 263parallel
Strand 3
B
293 297parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
400 402first strand
Strand 2
B
420 424parallel
Strand 3
B
439 443parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il