Analysis of interatomic Contacts of Structural Units in PDB entry:
2I9B


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 2I9B entry

There are 8 chains in PDB entry 2I9B (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 CYS 11ALA 132
B
 CYS 11ALA 132
C
 CYS 11ALA 132
D
 CYS 11ALA 132
E
 SER 0ASP 277
F
 SER 0ASP 277
G
 LEU 1ASP 277
H
 LEU 1ASP 277
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 12 helices in PDB entry 2I9B. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
78 82Right-handed 310
Helix 2
2
A
90 95Right-handed alpha
Helix 3
3
B
78 82Right-handed 310
Helix 4
4
B
90 95Right-handed alpha
Helix 5
5
C
78 82Right-handed 310
Helix 6
6
D
78 82Right-handed 310
Helix 7
7
E
183 187Right-handed 310
Helix 8
8
F
183 187Right-handed 310
Helix 9
9
G
183 187Right-handed 310
Helix 10
10
G
273 277Right-handed 310
Helix 11
11
H
183 187Right-handed 310
Helix 12
12
H
273 277Right-handed 310
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There are 26 sheets in PDB entry 2I9B. 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, X, Y, Z,

There are 2 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
18 21first strand
Strand 2
A
29 32anti-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
37 38first strand
Strand 2
A
44 45anti-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
112 117first strand
Strand 2
A
120 125anti-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
B
18 21first strand
Strand 2
B
29 32anti-parallel
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There are 2 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
37 38first strand
Strand 2
B
44 45anti-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
112 117first strand
Strand 2
B
120 125anti-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
C
18 21first strand
Strand 2
C
29 32anti-parallel
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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
112 115first strand
Strand 2
C
122 125anti-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
D
18 21first strand
Strand 2
D
29 32anti-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
D
112 115first strand
Strand 2
D
122 125anti-parallel
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There are 2 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
2 6first strand
Strand 2
E
12 16anti-parallel
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There are 7 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
37 46first strand
Strand 2
E
23 33anti-parallel
Strand 3
E
62 71anti-parallel
Strand 4
E
53 58anti-parallel
Strand 5
E
143 149anti-parallel
Strand 6
E
94 99anti-parallel
Strand 7
E
111 114anti-parallel
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There are 11 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
37 46first strand
Strand 2
E
23 33anti-parallel
Strand 3
E
62 71anti-parallel
Strand 4
E
53 58anti-parallel
Strand 5
E
143 149anti-parallel
Strand 6
E
121 128anti-parallel
Strand 7
E
165 171anti-parallel
Strand 8
E
155 160anti-parallel
Strand 9
E
235 242anti-parallel
Strand 10
E
221 228anti-parallel
Strand 11
E
264 266anti-parallel
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There are 2 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
189 196first strand
Strand 2
E
211 216anti-parallel
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There are 2 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
2 6first strand
Strand 2
F
12 16anti-parallel
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There are 7 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
37 46first strand
Strand 2
F
23 33anti-parallel
Strand 3
F
62 71anti-parallel
Strand 4
F
53 58anti-parallel
Strand 5
F
143 149anti-parallel
Strand 6
F
94 99anti-parallel
Strand 7
F
111 114anti-parallel
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There are 11 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
37 46first strand
Strand 2
F
23 33anti-parallel
Strand 3
F
62 71anti-parallel
Strand 4
F
53 58anti-parallel
Strand 5
F
143 149anti-parallel
Strand 6
F
121 128anti-parallel
Strand 7
F
165 171anti-parallel
Strand 8
F
155 160anti-parallel
Strand 9
F
235 242anti-parallel
Strand 10
F
221 228anti-parallel
Strand 11
F
264 266anti-parallel
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There are 2 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
189 196first strand
Strand 2
F
211 216anti-parallel
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There are 2 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
3 6first strand
Strand 2
G
12 15anti-parallel
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There are 11 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
38 46first strand
Strand 2
G
23 31anti-parallel
Strand 3
G
63 71anti-parallel
Strand 4
G
53 58anti-parallel
Strand 5
G
143 149anti-parallel
Strand 6
G
121 128anti-parallel
Strand 7
G
165 171anti-parallel
Strand 8
G
156 160anti-parallel
Strand 9
G
238 242anti-parallel
Strand 10
G
189 198anti-parallel
Strand 11
G
211 216anti-parallel
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There are 9 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
111 113first strand
Strand 2
G
95 99anti-parallel
Strand 3
G
143 149anti-parallel
Strand 4
G
121 128anti-parallel
Strand 5
G
165 171anti-parallel
Strand 6
G
156 160anti-parallel
Strand 7
G
238 242anti-parallel
Strand 8
G
221 225anti-parallel
Strand 9
G
263 266anti-parallel
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There are 2 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
228 229first strand
Strand 2
G
234 235anti-parallel
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There are 2 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
3 6first strand
Strand 2
H
12 15anti-parallel
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There are 11 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
38 46first strand
Strand 2
H
23 31anti-parallel
Strand 3
H
63 71anti-parallel
Strand 4
H
53 58anti-parallel
Strand 5
H
143 149anti-parallel
Strand 6
H
121 128anti-parallel
Strand 7
H
165 171anti-parallel
Strand 8
H
156 160anti-parallel
Strand 9
H
238 242anti-parallel
Strand 10
H
189 198anti-parallel
Strand 11
H
211 216anti-parallel
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There are 9 strands in Y sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
111 113first strand
Strand 2
H
95 99anti-parallel
Strand 3
H
143 149anti-parallel
Strand 4
H
121 128anti-parallel
Strand 5
H
165 171anti-parallel
Strand 6
H
156 160anti-parallel
Strand 7
H
238 242anti-parallel
Strand 8
H
221 225anti-parallel
Strand 9
H
263 266anti-parallel
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There are 2 strands in Z sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
228 229first strand
Strand 2
H
234 235anti-parallel
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