Analysis of interatomic Contacts of Structural Units in PDB entry:
2A3B


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 2A3B entry

There are 2 chains in PDB entry 2A3B (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 39GLN 432
B
 ALA 39GLN 432
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 43 helices in PDB entry 2A3B. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
52 55Right-handed 310
Helix 2
2
A
60 64Right-handed 310
Helix 3
3
A
65 69Right-handed 310
Helix 4
4
A
90 96Right-handed alpha
Helix 5
5
A
112 125Right-handed alpha
Helix 6
6
A
139 141Right-handed 310
Helix 7
7
A
142 148Right-handed alpha
Helix 8
8
A
149 168Right-handed alpha
Helix 9
9
A
181 207Right-handed alpha
Helix 10
10
A
221 228Right-handed alpha
Helix 11
11
A
229 235Right-handed alpha
Helix 12
12
A
267 271Right-handed 310
Helix 13
13
A
274 285Right-handed alpha
Helix 14
14
A
288 290Right-handed 310
Helix 15
15
A
329 331Right-handed 310
Helix 16
16
A
362 377Right-handed alpha
Helix 17
17
A
385 389Right-handed 310
Helix 18
18
A
391 394Right-handed 310
Helix 19
19
A
395 404Right-handed alpha
Helix 20
20
A
406 410Right-handed 310
Helix 21
21
A
424 429Right-handed alpha
Helix 22
22
B
52 55Right-handed 310
Helix 23
23
B
60 64Right-handed 310
Helix 24
24
B
65 69Right-handed 310
Helix 25
25
B
90 95Right-handed alpha
Helix 26
26
B
112 125Right-handed alpha
Helix 27
27
B
139 141Right-handed 310
Helix 28
28
B
142 148Right-handed alpha
Helix 29
29
B
149 168Right-handed alpha
Helix 30
30
B
181 207Right-handed alpha
Helix 31
31
B
221 228Right-handed alpha
Helix 32
32
B
229 235Right-handed alpha
Helix 33
33
B
267 271Right-handed 310
Helix 34
34
B
274 285Right-handed alpha
Helix 35
35
B
288 290Right-handed 310
Helix 36
36
B
329 331Right-handed 310
Helix 37
37
B
342 345Right-handed 310
Helix 38
38
B
362 377Right-handed alpha
Helix 39
39
B
385 389Right-handed 310
Helix 40
40
B
391 394Right-handed 310
Helix 41
41
B
395 405Right-handed alpha
Helix 42
42
B
406 410Right-handed 310
Helix 43
43
B
424 429Right-handed alpha
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There are 4 sheets in PDB entry 2A3B. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 10 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
86 88first strand
Strand 2
A
71 79anti-parallel
Strand 3
A
129 135parallel
Strand 4
A
171 175parallel
Strand 5
A
213 218parallel
Strand 6
A
239 242parallel
Strand 7
A
292 297parallel
Strand 8
A
380 384parallel
Strand 9
A
44 50parallel
Strand 10
A
71 79parallel
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There are 5 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
325 327first strand
Strand 2
A
299 303anti-parallel
Strand 3
A
356 359anti-parallel
Strand 4
A
346 351anti-parallel
Strand 5
A
337 341anti-parallel
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There are 10 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
86 88first strand
Strand 2
B
71 79anti-parallel
Strand 3
B
129 135parallel
Strand 4
B
171 175parallel
Strand 5
B
213 218parallel
Strand 6
B
239 242parallel
Strand 7
B
292 297parallel
Strand 8
B
380 384parallel
Strand 9
B
44 50parallel
Strand 10
B
71 79parallel
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There are 5 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
325 327first strand
Strand 2
B
299 303anti-parallel
Strand 3
B
356 359anti-parallel
Strand 4
B
346 351anti-parallel
Strand 5
B
337 341anti-parallel
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