Analysis of interatomic Contacts of Structural Units in PDB entry:
4NU3


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 4NU3 entry

There are 2 chains in PDB entry 4NU3 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 31GLN 256
B
 SER 31PRO 255
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 10 helices in PDB entry 4NU3. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
40 44Right-handed 310
Helix 2
2
A
72 74Right-handed 310
Helix 3
3
A
107 128Right-handed alpha
Helix 4
4
A
137 141Right-handed 310
Helix 5
5
A
197 199Right-handed 310
Helix 6
6
B
40 44Right-handed 310
Helix 7
7
B
72 74Right-handed 310
Helix 8
8
B
107 128Right-handed alpha
Helix 9
9
B
137 141Right-handed 310
Helix 10
10
B
197 199Right-handed 310
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There are 8 sheets in PDB entry 4NU3. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 7 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
95 96first strand
Strand 2
A
61 63parallel
Strand 3
A
251 253parallel
Strand 4
A
234 241parallel
Strand 5
A
46 50parallel
Strand 6
A
65 68parallel
Strand 7
A
99 101parallel
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There are 9 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
95 96first strand
Strand 2
A
61 63parallel
Strand 3
A
251 253parallel
Strand 4
A
234 241parallel
Strand 5
A
216 223parallel
Strand 6
A
201 205parallel
Strand 7
A
174 178parallel
Strand 8
A
150 154parallel
Strand 9
A
134 135parallel
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There are 7 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
76 77first strand
Strand 2
A
54 57parallel
Strand 3
A
245 248parallel
Strand 4
A
227 229parallel
Strand 5
A
209 211parallel
Strand 6
A
182 184parallel
Strand 7
A
158 160parallel
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There are 3 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
146 147first strand
Strand 2
A
164 167parallel
Strand 3
A
190 193parallel
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There are 7 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
95 96first strand
Strand 2
B
61 63parallel
Strand 3
B
251 253parallel
Strand 4
B
234 241parallel
Strand 5
B
46 50parallel
Strand 6
B
65 68parallel
Strand 7
B
99 101parallel
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There are 9 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
95 96first strand
Strand 2
B
61 63parallel
Strand 3
B
251 253parallel
Strand 4
B
234 241parallel
Strand 5
B
216 223parallel
Strand 6
B
201 205parallel
Strand 7
B
174 178parallel
Strand 8
B
150 154parallel
Strand 9
B
134 135parallel
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There are 7 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
76 77first strand
Strand 2
B
54 57parallel
Strand 3
B
245 248parallel
Strand 4
B
227 229parallel
Strand 5
B
209 211parallel
Strand 6
B
182 184parallel
Strand 7
B
158 160parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
146 147first strand
Strand 2
B
164 167parallel
Strand 3
B
190 193parallel
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