Analysis of interatomic Contacts of Structural Units in PDB entry:
2R56


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 2R56 entry

There are 6 chains in PDB entry 2R56 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 4ILE 162
L
 ASP 1ARG 211
H
 GLN 1PRO 221
B
 THR 4ILE 162
M
 ASP 1ARG 211
I
 GLN 1PRO 221
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 21 helices in PDB entry 2R56. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
11 15Right-handed 310
Helix 2
2
A
28 32Right-handed 310
Helix 3
3
A
86 88Right-handed 310
Helix 4
4
A
129 141Right-handed alpha
Helix 5
5
A
152 158Right-handed 310
Helix 6
6
L
121 126Right-handed alpha
Helix 7
7
L
183 189Right-handed alpha
Helix 8
8
H
28 32Right-handed 310
Helix 9
9
H
87 91Right-handed 310
Helix 10
10
H
135 139Right-handed 310
Helix 11
11
H
195 197Right-handed 310
Helix 12
12
B
11 15Right-handed 310
Helix 13
13
B
28 32Right-handed 310
Helix 14
14
B
86 88Right-handed 310
Helix 15
15
B
129 141Right-handed alpha
Helix 16
16
B
154 158Right-handed 310
Helix 17
17
M
121 126Right-handed alpha
Helix 18
18
M
183 189Right-handed alpha
Helix 19
19
I
28 32Right-handed 310
Helix 20
20
I
87 91Right-handed 310
Helix 21
21
I
195 197Right-handed 310
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There are 23 sheets in PDB entry 2R56. 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, N, O, P, Q, R, S, T, U, V, W,

There are 20 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
17 18first strand
Strand 2
A
41 48anti-parallel
Strand 3
A
54 61anti-parallel
Strand 4
A
66 75anti-parallel
Strand 5
A
81 84anti-parallel
Strand 6
A
90 97anti-parallel
Strand 7
A
102 109anti-parallel
Strand 8
A
117 123anti-parallel
Strand 9
A
20 26anti-parallel
Strand 10
A
147 150anti-parallel
Strand 11
B
147 150anti-parallel
Strand 12
B
20 26anti-parallel
Strand 13
B
117 123anti-parallel
Strand 14
B
102 109anti-parallel
Strand 15
B
90 97anti-parallel
Strand 16
B
81 84anti-parallel
Strand 17
B
66 75anti-parallel
Strand 18
B
54 61anti-parallel
Strand 19
B
41 48anti-parallel
Strand 20
B
17 18anti-parallel
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There are 4 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
4 7first strand
Strand 2
L
19 25anti-parallel
Strand 3
L
70 75anti-parallel
Strand 4
L
62 67anti-parallel
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There are 6 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 14first strand
Strand 2
L
102 107parallel
Strand 3
L
84 90anti-parallel
Strand 4
L
33 38anti-parallel
Strand 5
L
45 49anti-parallel
Strand 6
L
53 54anti-parallel
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There are 4 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 14first strand
Strand 2
L
102 107parallel
Strand 3
L
84 90anti-parallel
Strand 4
L
97 98anti-parallel
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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
114 118first strand
Strand 2
L
129 139anti-parallel
Strand 3
L
173 182anti-parallel
Strand 4
L
159 163anti-parallel
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There are 3 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
145 150first strand
Strand 2
L
191 197anti-parallel
Strand 3
L
205 210anti-parallel
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There are 4 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
3 7first strand
Strand 2
H
18 25anti-parallel
Strand 3
H
78 83anti-parallel
Strand 4
H
68 73anti-parallel
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There are 6 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
11 12first strand
Strand 2
H
115 119parallel
Strand 3
H
92 99anti-parallel
Strand 4
H
34 39anti-parallel
Strand 5
H
45 51anti-parallel
Strand 6
H
58 60anti-parallel
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There are 4 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
11 12first strand
Strand 2
H
115 119parallel
Strand 3
H
92 99anti-parallel
Strand 4
H
108 111anti-parallel
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There are 4 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
128 132first strand
Strand 2
H
143 153anti-parallel
Strand 3
H
184 193anti-parallel
Strand 4
H
172 173anti-parallel
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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
128 132first strand
Strand 2
H
143 153anti-parallel
Strand 3
H
184 193anti-parallel
Strand 4
H
177 178anti-parallel
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There are 3 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
159 162first strand
Strand 2
H
203 208anti-parallel
Strand 3
H
213 218anti-parallel
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There are 4 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
4 7first strand
Strand 2
M
19 25anti-parallel
Strand 3
M
70 75anti-parallel
Strand 4
M
62 67anti-parallel
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There are 6 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
10 14first strand
Strand 2
M
102 107parallel
Strand 3
M
84 90anti-parallel
Strand 4
M
33 38anti-parallel
Strand 5
M
45 49anti-parallel
Strand 6
M
53 54anti-parallel
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There are 4 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
10 14first strand
Strand 2
M
102 107parallel
Strand 3
M
84 90anti-parallel
Strand 4
M
97 98anti-parallel
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There are 4 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
114 118first strand
Strand 2
M
129 139anti-parallel
Strand 3
M
173 182anti-parallel
Strand 4
M
159 163anti-parallel
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There are 3 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
145 150first strand
Strand 2
M
191 197anti-parallel
Strand 3
M
205 210anti-parallel
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There are 4 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
3 7first strand
Strand 2
I
18 25anti-parallel
Strand 3
I
78 83anti-parallel
Strand 4
I
68 73anti-parallel
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There are 6 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
11 12first strand
Strand 2
I
115 119parallel
Strand 3
I
92 99anti-parallel
Strand 4
I
34 39anti-parallel
Strand 5
I
45 51anti-parallel
Strand 6
I
58 60anti-parallel
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There are 4 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
11 12first strand
Strand 2
I
115 119parallel
Strand 3
I
92 99anti-parallel
Strand 4
I
108 111anti-parallel
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There are 4 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
128 132first strand
Strand 2
I
143 153anti-parallel
Strand 3
I
184 193anti-parallel
Strand 4
I
172 173anti-parallel
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There are 4 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
128 132first strand
Strand 2
I
143 153anti-parallel
Strand 3
I
184 193anti-parallel
Strand 4
I
177 178anti-parallel
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There are 3 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
159 162first strand
Strand 2
I
203 208anti-parallel
Strand 3
I
213 218anti-parallel
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