Analysis of interatomic Contacts of Structural Units in PDB entry:
4A9A


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 4A9A entry

There are 4 chains in PDB entry 4A9A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2LYS 369
B
 SER 2LYS 369
C
 LEU 214LYS 338
D
 LEU 214ILE 336
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 4A9A. 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 18Right-handed alpha
Helix 2
2
A
24 44Right-handed alpha
Helix 3
3
A
75 87Right-handed alpha
Helix 4
4
A
91 95Right-handed 310
Helix 5
5
A
120 123Right-handed 310
Helix 6
6
A
131 143Right-handed alpha
Helix 7
7
A
154 169Right-handed alpha
Helix 8
8
A
202 213Right-handed alpha
Helix 9
9
A
227 236Right-handed alpha
Helix 10
10
A
251 255Right-handed 310
Helix 11
11
A
256 264Right-handed alpha
Helix 12
12
A
279 292Right-handed alpha
Helix 13
13
A
319 328Right-handed alpha
Helix 14
14
A
329 333Right-handed 310
Helix 15
15
B
2 18Right-handed alpha
Helix 16
16
B
24 44Right-handed alpha
Helix 17
17
B
59 64Right-handed alpha
Helix 18
18
B
77 87Right-handed alpha
Helix 19
19
B
120 123Right-handed 310
Helix 20
20
B
133 143Right-handed alpha
Helix 21
21
B
155 169Right-handed alpha
Helix 22
22
B
202 213Right-handed alpha
Helix 23
23
B
227 236Right-handed alpha
Helix 24
24
B
251 255Right-handed 310
Helix 25
25
B
256 264Right-handed alpha
Helix 26
26
B
279 292Right-handed alpha
Helix 27
27
B
319 328Right-handed alpha
Helix 28
28
B
330 335Right-handed alpha
Helix 29
29
C
221 228Right-handed alpha
Helix 30
30
C
229 233Right-handed 310
Helix 31
31
C
234 238Right-handed 310
Helix 32
32
C
242 266Right-handed alpha
Helix 33
33
C
271 282Right-handed alpha
Helix 34
34
C
305 318Right-handed alpha
Helix 35
35
C
319 323Right-handed 310
Helix 36
36
D
221 228Right-handed alpha
Helix 37
37
D
228 233Right-handed alpha
Helix 38
38
D
234 238Right-handed 310
Helix 39
39
D
242 262Right-handed alpha
Helix 40
40
D
271 281Right-handed alpha
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There are 8 sheets in PDB entry 4A9A. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, BA, BB, BC, BD,

There are 7 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
269 271first strand
Strand 2
A
245 250parallel
Strand 3
A
145 151parallel
Strand 4
A
66 71parallel
Strand 5
A
112 118parallel
Strand 6
A
102 109anti-parallel
Strand 7
C
324 325parallel
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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
171 173first strand
Strand 2
A
241 243parallel
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There are 3 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
180 184first strand
Strand 2
A
218 222anti-parallel
Strand 3
A
190 194parallel
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There are 5 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
311 313first strand
Strand 2
A
294 298anti-parallel
Strand 3
A
363 368parallel
Strand 4
A
335 341anti-parallel
Strand 5
A
350 352anti-parallel
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There are 7 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
269 271first strand
Strand 2
B
245 250parallel
Strand 3
B
145 151parallel
Strand 4
B
65 71parallel
Strand 5
B
112 118parallel
Strand 6
B
105 109anti-parallel
Strand 7
D
324 325parallel
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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
171 173first strand
Strand 2
B
241 243parallel
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There are 3 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
180 184first strand
Strand 2
B
218 222anti-parallel
Strand 3
B
190 194parallel
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There are 5 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
311 314first strand
Strand 2
B
293 298anti-parallel
Strand 3
B
362 367parallel
Strand 4
B
337 341anti-parallel
Strand 5
B
350 352anti-parallel
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