Analysis of interatomic Contacts of Structural Units in PDB entry:
2A2A


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 2A2A entry

There are 4 chains in PDB entry 2A2A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1ARG 304
B
 GLU 2ARG 304
C
 GLU 2ARG 304
D
 GLU 2VAL 290
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 57 helices in PDB entry 2A2A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 12Right-handed alpha
Helix 2
2
A
57 71Right-handed alpha
Helix 3
3
A
100 107Right-handed alpha
Helix 4
4
A
113 133Right-handed alpha
Helix 5
5
A
141 143Right-handed 310
Helix 6
6
A
180 184Right-handed 310
Helix 7
7
A
185 190Right-handed alpha
Helix 8
8
A
196 213Right-handed alpha
Helix 9
9
A
221 231Right-handed alpha
Helix 10
10
A
237 242Right-handed alpha
Helix 11
11
A
245 254Right-handed alpha
Helix 12
12
A
265 272Right-handed alpha
Helix 13
13
A
279 289Right-handed alpha
Helix 14
14
A
292 303Right-handed alpha
Helix 15
15
B
8 12Right-handed alpha
Helix 16
16
B
57 71Right-handed alpha
Helix 17
17
B
100 108Right-handed alpha
Helix 18
18
B
112 133Right-handed alpha
Helix 19
19
B
141 143Right-handed 310
Helix 20
20
B
180 184Right-handed 310
Helix 21
21
B
185 190Right-handed alpha
Helix 22
22
B
196 213Right-handed alpha
Helix 23
23
B
221 231Right-handed alpha
Helix 24
24
B
237 242Right-handed alpha
Helix 25
25
B
245 256Right-handed alpha
Helix 26
26
B
265 272Right-handed alpha
Helix 27
27
B
279 289Right-handed alpha
Helix 28
28
B
292 303Right-handed alpha
Helix 29
29
C
8 12Right-handed alpha
Helix 30
30
C
57 69Right-handed alpha
Helix 31
31
C
100 106Right-handed alpha
Helix 32
32
C
112 133Right-handed alpha
Helix 33
33
C
141 143Right-handed 310
Helix 34
34
C
180 184Right-handed 310
Helix 35
35
C
185 190Right-handed alpha
Helix 36
36
C
196 213Right-handed alpha
Helix 37
37
C
221 231Right-handed alpha
Helix 38
38
C
237 242Right-handed alpha
Helix 39
39
C
245 256Right-handed alpha
Helix 40
40
C
265 272Right-handed alpha
Helix 41
41
C
279 289Right-handed alpha
Helix 42
42
C
292 303Right-handed alpha
Helix 43
43
D
8 12Right-handed alpha
Helix 44
44
D
57 71Right-handed alpha
Helix 45
45
D
100 107Right-handed alpha
Helix 46
46
D
112 133Right-handed alpha
Helix 47
47
D
141 143Right-handed 310
Helix 48
48
D
180 184Right-handed 310
Helix 49
49
D
185 190Right-handed alpha
Helix 50
50
D
196 213Right-handed alpha
Helix 51
51
D
221 231Right-handed alpha
Helix 52
52
D
237 242Right-handed alpha
Helix 53
53
D
245 256Right-handed alpha
Helix 54
54
D
265 272Right-handed alpha
Helix 55
55
D
279 289Right-handed alpha
Helix 56
56
D
292 301Right-handed alpha
Helix 57
57
D
302 304Right-handed 310
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There are 13 sheets in PDB entry 2A2A. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M,

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
13 21first strand
Strand 2
A
25 32anti-parallel
Strand 3
A
38 45anti-parallel
Strand 4
A
88 93anti-parallel
Strand 5
A
79 84anti-parallel
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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
111 112first strand
Strand 2
A
290 291anti-parallel
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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
135 136first strand
Strand 2
A
166 167anti-parallel
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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
145 147first strand
Strand 2
A
157 159anti-parallel
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There are 5 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
13 21first strand
Strand 2
B
25 32anti-parallel
Strand 3
B
38 45anti-parallel
Strand 4
B
88 93anti-parallel
Strand 5
B
79 84anti-parallel
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There are 2 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
135 136first strand
Strand 2
B
166 167anti-parallel
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There are 2 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
145 147first strand
Strand 2
B
157 159anti-parallel
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There are 5 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
13 20first strand
Strand 2
C
25 32anti-parallel
Strand 3
C
38 45anti-parallel
Strand 4
C
88 94anti-parallel
Strand 5
C
79 84anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
135 136first strand
Strand 2
C
166 167anti-parallel
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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
145 147first strand
Strand 2
C
157 159anti-parallel
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There are 5 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
13 20first strand
Strand 2
D
25 32anti-parallel
Strand 3
D
38 45anti-parallel
Strand 4
D
88 93anti-parallel
Strand 5
D
79 84anti-parallel
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There are 2 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
135 136first strand
Strand 2
D
166 167anti-parallel
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There are 2 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
145 147first strand
Strand 2
D
157 159anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il