Analysis of interatomic Contacts of Structural Units in PDB entry:
2B81


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 2B81 entry

There are 4 chains in PDB entry 2B81 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MSE 4LEU 320
B
 HIS 3LEU 320
C
 MSE 1LEU 320
D
 HIS 3LEU 320
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 46 helices in PDB entry 2B81. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
10 17Right-handed alpha
Helix 2
2
A
42 54Right-handed alpha
Helix 3
3
A
67 71Right-handed 310
Helix 4
4
A
80 90Right-handed alpha
Helix 5
5
A
108 123Right-handed alpha
Helix 6
6
A
136 144Right-handed alpha
Helix 7
7
A
149 167Right-handed alpha
Helix 8
8
A
203 210Right-handed alpha
Helix 9
9
A
220 239Right-handed alpha
Helix 10
10
A
272 287Right-handed alpha
Helix 11
11
A
301 313Right-handed alpha
Helix 12
12
A
314 317Right-handed 310
Helix 13
13
B
10 17Right-handed alpha
Helix 14
14
B
42 54Right-handed alpha
Helix 15
15
B
80 90Right-handed alpha
Helix 16
16
B
108 123Right-handed alpha
Helix 17
17
B
136 144Right-handed alpha
Helix 18
18
B
149 167Right-handed alpha
Helix 19
19
B
205 210Right-handed alpha
Helix 20
20
B
220 239Right-handed alpha
Helix 21
21
B
272 287Right-handed alpha
Helix 22
22
B
301 313Right-handed alpha
Helix 23
23
B
314 317Right-handed 310
Helix 24
24
C
10 17Right-handed alpha
Helix 25
25
C
42 54Right-handed alpha
Helix 26
26
C
80 90Right-handed alpha
Helix 27
27
C
108 123Right-handed alpha
Helix 28
28
C
136 144Right-handed alpha
Helix 29
29
C
149 167Right-handed alpha
Helix 30
30
C
203 210Right-handed alpha
Helix 31
31
C
220 239Right-handed alpha
Helix 32
32
C
272 286Right-handed alpha
Helix 33
33
C
301 313Right-handed alpha
Helix 34
34
C
314 317Right-handed 310
Helix 35
35
D
10 17Right-handed alpha
Helix 36
36
D
42 54Right-handed alpha
Helix 37
37
D
67 71Right-handed 310
Helix 38
38
D
80 90Right-handed alpha
Helix 39
39
D
108 123Right-handed alpha
Helix 40
40
D
136 144Right-handed alpha
Helix 41
41
D
149 167Right-handed alpha
Helix 42
42
D
203 210Right-handed alpha
Helix 43
43
D
220 239Right-handed alpha
Helix 44
44
D
272 286Right-handed alpha
Helix 45
45
D
301 313Right-handed alpha
Helix 46
46
D
314 317Right-handed 310
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There are 12 sheets in PDB entry 2B81. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

There are 11 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
263 265first strand
Strand 2
A
268 271anti-parallel
Strand 3
A
246 254parallel
Strand 4
A
290 294parallel
Strand 5
A
23 27parallel
Strand 6
A
57 60parallel
Strand 7
A
96 103parallel
Strand 8
A
127 132parallel
Strand 9
A
194 197parallel
Strand 10
A
213 215parallel
Strand 11
A
246 254parallel
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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
65 66first strand
Strand 2
B
183 184anti-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
171 174first strand
Strand 2
A
177 180anti-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
183 184first strand
Strand 2
B
65 66anti-parallel
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There are 11 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
263 265first strand
Strand 2
B
268 271anti-parallel
Strand 3
B
246 254parallel
Strand 4
B
290 294parallel
Strand 5
B
23 27parallel
Strand 6
B
57 60parallel
Strand 7
B
96 103parallel
Strand 8
B
127 132parallel
Strand 9
B
194 197parallel
Strand 10
B
213 215parallel
Strand 11
B
246 254parallel
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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
172 174first strand
Strand 2
B
177 179anti-parallel
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There are 11 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
263 265first strand
Strand 2
C
268 271anti-parallel
Strand 3
C
246 254parallel
Strand 4
C
290 294parallel
Strand 5
C
23 27parallel
Strand 6
C
57 60parallel
Strand 7
C
96 103parallel
Strand 8
C
127 132parallel
Strand 9
C
194 197parallel
Strand 10
C
214 215parallel
Strand 11
C
246 254parallel
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There are 2 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
65 66first strand
Strand 2
D
183 184anti-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
171 174first strand
Strand 2
C
177 180anti-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
183 184first strand
Strand 2
D
65 66anti-parallel
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There are 11 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
263 265first strand
Strand 2
D
268 271anti-parallel
Strand 3
D
246 254parallel
Strand 4
D
290 294parallel
Strand 5
D
23 27parallel
Strand 6
D
57 60parallel
Strand 7
D
96 103parallel
Strand 8
D
127 132parallel
Strand 9
D
194 197parallel
Strand 10
D
213 215parallel
Strand 11
D
246 254parallel
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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
172 174first strand
Strand 2
D
177 179anti-parallel
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