Analysis of interatomic Contacts of Structural Units in PDB entry:
3I3X


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 3I3X entry

There are 3 chains in PDB entry 3I3X (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1ARG 259
B
 MET 1ARG 259
C
 MET 1ARG 259
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 3I3X. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
193 200Right-handed alpha
Helix 2
2
A
203 219Right-handed alpha
Helix 3
3
A
223 234Right-handed alpha
Helix 4
4
A
238 251Right-handed alpha
Helix 5
5
B
193 201Right-handed alpha
Helix 6
6
B
203 219Right-handed alpha
Helix 7
7
B
223 232Right-handed alpha
Helix 8
8
B
238 251Right-handed alpha
Helix 9
9
C
193 200Right-handed alpha
Helix 10
10
C
203 220Right-handed alpha
Helix 11
11
C
223 234Right-handed alpha
Helix 12
12
C
238 251Right-handed alpha
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There are 9 sheets in PDB entry 3I3X. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

There are 9 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
8 9first strand
Strand 2
A
26 27parallel
Strand 3
A
44 45parallel
Strand 4
A
62 65parallel
Strand 5
A
93 95parallel
Strand 6
A
117 118parallel
Strand 7
A
135 136parallel
Strand 8
A
153 154parallel
Strand 9
A
171 172parallel
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There are 8 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 15first strand
Strand 2
A
32 33parallel
Strand 3
A
49 51parallel
Strand 4
A
80 82parallel
Strand 5
A
104 106parallel
Strand 6
A
123 124parallel
Strand 7
A
141 142parallel
Strand 8
A
159 160parallel
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There are 10 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
20 21first strand
Strand 2
A
38 39parallel
Strand 3
A
56 57parallel
Strand 4
A
87 88parallel
Strand 5
A
111 112parallel
Strand 6
A
129 130parallel
Strand 7
A
147 148parallel
Strand 8
A
165 166parallel
Strand 9
A
180 183parallel
Strand 10
A
188 192anti-parallel
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There are 11 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
2 3first strand
Strand 2
B
20 21parallel
Strand 3
B
38 39parallel
Strand 4
B
56 57parallel
Strand 5
B
87 88parallel
Strand 6
B
111 112parallel
Strand 7
B
129 130parallel
Strand 8
B
147 148parallel
Strand 9
B
165 166parallel
Strand 10
B
180 183parallel
Strand 11
B
188 192anti-parallel
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There are 9 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
8 9first strand
Strand 2
B
26 27parallel
Strand 3
B
44 45parallel
Strand 4
B
62 65parallel
Strand 5
B
93 95parallel
Strand 6
B
117 118parallel
Strand 7
B
135 136parallel
Strand 8
B
153 154parallel
Strand 9
B
171 172parallel
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There are 8 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
14 15first strand
Strand 2
B
32 33parallel
Strand 3
B
49 51parallel
Strand 4
B
80 82parallel
Strand 5
B
104 106parallel
Strand 6
B
123 124parallel
Strand 7
B
141 142parallel
Strand 8
B
159 160parallel
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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
2 3first strand
Strand 2
C
20 21parallel
Strand 3
C
38 39parallel
Strand 4
C
56 57parallel
Strand 5
C
87 88parallel
Strand 6
C
111 112parallel
Strand 7
C
129 130parallel
Strand 8
C
147 148parallel
Strand 9
C
165 166parallel
Strand 10
C
180 183parallel
Strand 11
C
188 192anti-parallel
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There are 9 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
8 9first strand
Strand 2
C
26 27parallel
Strand 3
C
44 45parallel
Strand 4
C
62 65parallel
Strand 5
C
93 95parallel
Strand 6
C
117 118parallel
Strand 7
C
135 136parallel
Strand 8
C
153 154parallel
Strand 9
C
171 172parallel
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There are 8 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
14 15first strand
Strand 2
C
32 33parallel
Strand 3
C
49 51parallel
Strand 4
C
80 82parallel
Strand 5
C
104 106parallel
Strand 6
C
123 124parallel
Strand 7
C
141 142parallel
Strand 8
C
159 160parallel
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