Analysis of interatomic Contacts of Structural Units in PDB entry:
2I3S


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 2I3S entry

There are 6 chains in PDB entry 2I3S (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1GLU 340
B
 LYS 315GLN 350
C
 MET 1GLU 340
D
 LYS 315GLN 350
E
 MET 1GLU 340
F
 LYS 315GLN 350
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 15 helices in PDB entry 2I3S. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
21 23Right-handed 310
Helix 2
2
A
128 133Right-handed alpha
Helix 3
3
A
203 206Right-handed 310
Helix 4
4
A
314 319Right-handed 310
Helix 5
5
B
322 327Right-handed alpha
Helix 6
6
B
335 344Right-handed alpha
Helix 7
7
C
203 206Right-handed 310
Helix 8
8
C
314 319Right-handed 310
Helix 9
9
D
322 327Right-handed alpha
Helix 10
10
D
335 344Right-handed alpha
Helix 11
11
E
21 23Right-handed 310
Helix 12
12
E
203 206Right-handed 310
Helix 13
13
E
314 319Right-handed 310
Helix 14
14
F
322 327Right-handed alpha
Helix 15
15
F
335 344Right-handed alpha
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There are 24 sheets in PDB entry 2I3S. 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,

There are 4 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
2 5first strand
Strand 2
A
332 337anti-parallel
Strand 3
A
306 312anti-parallel
Strand 4
A
296 302anti-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
A
14 20first strand
Strand 2
A
25 30anti-parallel
Strand 3
A
34 41anti-parallel
Strand 4
A
46 54anti-parallel
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There are 4 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
59 66first strand
Strand 2
A
70 76anti-parallel
Strand 3
A
81 84anti-parallel
Strand 4
A
92 94anti-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
A
104 110first strand
Strand 2
A
114 119anti-parallel
Strand 3
A
123 127anti-parallel
Strand 4
A
137 141anti-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
A
153 158first strand
Strand 2
A
162 167anti-parallel
Strand 3
A
171 176anti-parallel
Strand 4
A
186 189anti-parallel
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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
196 201first strand
Strand 2
A
208 213anti-parallel
Strand 3
A
217 222anti-parallel
Strand 4
A
236 239anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
242 243first strand
Strand 2
A
249 251anti-parallel
Strand 3
B
317 319parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
254 259first strand
Strand 2
A
266 270anti-parallel
Strand 3
A
275 279anti-parallel
Strand 4
A
284 288anti-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
C
2 5first strand
Strand 2
C
332 337anti-parallel
Strand 3
C
306 312anti-parallel
Strand 4
C
296 302anti-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
C
14 20first strand
Strand 2
C
25 30anti-parallel
Strand 3
C
34 41anti-parallel
Strand 4
C
46 54anti-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
C
59 66first strand
Strand 2
C
70 76anti-parallel
Strand 3
C
81 84anti-parallel
Strand 4
C
92 94anti-parallel
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There are 4 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
104 110first strand
Strand 2
C
114 119anti-parallel
Strand 3
C
123 127anti-parallel
Strand 4
C
140 141anti-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
C
153 158first strand
Strand 2
C
162 167anti-parallel
Strand 3
C
171 176anti-parallel
Strand 4
C
186 189anti-parallel
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There are 4 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
196 201first strand
Strand 2
C
208 213anti-parallel
Strand 3
C
217 222anti-parallel
Strand 4
C
236 239anti-parallel
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There are 3 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
242 243first strand
Strand 2
C
249 251anti-parallel
Strand 3
D
317 319parallel
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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
C
254 259first strand
Strand 2
C
266 270anti-parallel
Strand 3
C
275 279anti-parallel
Strand 4
C
284 288anti-parallel
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There are 4 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
2 5first strand
Strand 2
E
332 337anti-parallel
Strand 3
E
306 312anti-parallel
Strand 4
E
296 302anti-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
E
14 20first strand
Strand 2
E
25 30anti-parallel
Strand 3
E
34 41anti-parallel
Strand 4
E
46 54anti-parallel
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There are 4 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
59 65first strand
Strand 2
E
71 76anti-parallel
Strand 3
E
81 84anti-parallel
Strand 4
E
92 94anti-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
E
104 110first strand
Strand 2
E
114 119anti-parallel
Strand 3
E
123 127anti-parallel
Strand 4
E
140 141anti-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
E
153 159first strand
Strand 2
E
162 167anti-parallel
Strand 3
E
171 176anti-parallel
Strand 4
E
186 189anti-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
E
196 201first strand
Strand 2
E
208 213anti-parallel
Strand 3
E
217 222anti-parallel
Strand 4
E
236 239anti-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
E
242 243first strand
Strand 2
E
249 251anti-parallel
Strand 3
F
317 319parallel
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There are 4 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
256 259first strand
Strand 2
E
266 269anti-parallel
Strand 3
E
275 279anti-parallel
Strand 4
E
284 288anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il