Analysis of interatomic Contacts of Structural Units in PDB entry:
4A2A


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 4A2A entry

There are 4 chains in PDB entry 4A2A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 7ALA 390
B
 THR 7ALA 390
C
 ASP 338LEU 351
D
 GLY 337LEU 351
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 31 helices in PDB entry 4A2A. 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 72Right-handed alpha
Helix 2
2
A
107 123Right-handed alpha
Helix 3
3
A
167 179Right-handed alpha
Helix 4
4
A
190 199Right-handed alpha
Helix 5
5
A
200 207Right-handed alpha
Helix 6
6
A
237 250Right-handed alpha
Helix 7
7
A
252 264Right-handed alpha
Helix 8
8
A
291 317Right-handed alpha
Helix 9
9
A
336 341Right-handed 310
Helix 10
10
A
343 353Right-handed alpha
Helix 11
11
A
360 364Right-handed 310
Helix 12
12
A
372 377Right-handed alpha
Helix 13
13
A
378 380Right-handed 310
Helix 14
14
A
381 387Right-handed alpha
Helix 15
15
B
52 72Right-handed alpha
Helix 16
16
B
107 122Right-handed alpha
Helix 17
17
B
167 179Right-handed alpha
Helix 18
18
B
190 199Right-handed alpha
Helix 19
19
B
200 207Right-handed alpha
Helix 20
20
B
237 250Right-handed alpha
Helix 21
21
B
252 264Right-handed alpha
Helix 22
22
B
291 321Right-handed alpha
Helix 23
23
B
336 341Right-handed 310
Helix 24
24
B
343 353Right-handed alpha
Helix 25
25
B
372 377Right-handed alpha
Helix 26
26
B
378 380Right-handed 310
Helix 27
27
B
381 389Right-handed alpha
Helix 28
28
C
340 345Right-handed alpha
Helix 29
29
C
347 351Right-handed 310
Helix 30
30
D
340 345Right-handed alpha
Helix 31
31
D
347 351Right-handed 310
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There are 12 sheets in PDB entry 4A2A. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, BA, BB, BC, BD, BE, BF,

There are 5 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
33 41first strand
Strand 2
A
19 27anti-parallel
Strand 3
A
8 15anti-parallel
Strand 4
A
78 83parallel
Strand 5
A
185 189parallel
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There are 2 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
45 46first strand
Strand 2
A
49 50anti-parallel
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There are 4 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
89 98first strand
Strand 2
A
155 166anti-parallel
Strand 3
A
127 139anti-parallel
Strand 4
A
143 145anti-parallel
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There are 2 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
104 105first strand
Strand 2
A
152 153anti-parallel
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There are 5 strands in AE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
227 234first strand
Strand 2
A
218 224anti-parallel
Strand 3
A
208 213anti-parallel
Strand 4
A
332 335parallel
Strand 5
A
356 358parallel
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There are 2 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
275 279first strand
Strand 2
A
286 290anti-parallel
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There are 6 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
185 189first strand
Strand 2
B
78 83parallel
Strand 3
B
8 15parallel
Strand 4
B
19 27anti-parallel
Strand 5
B
32 41anti-parallel
Strand 6
B
369 370parallel
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There are 2 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
45 46first strand
Strand 2
B
49 50anti-parallel
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There are 4 strands in BC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
89 98first strand
Strand 2
B
155 166anti-parallel
Strand 3
B
127 139anti-parallel
Strand 4
B
143 145anti-parallel
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There are 2 strands in BD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
104 105first strand
Strand 2
B
152 153anti-parallel
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There are 5 strands in BE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
227 234first strand
Strand 2
B
218 224anti-parallel
Strand 3
B
208 213anti-parallel
Strand 4
B
332 335parallel
Strand 5
B
356 358parallel
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There are 2 strands in BF 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
286 290anti-parallel
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