Analysis of interatomic Contacts of Structural Units in PDB entry:
1NS4


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 1NS4 entry

There are 2 chains in PDB entry 1NS4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2LEU 340
B
 SER 2HIS 347
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 14 helices in PDB entry 1NS4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
50 57Right-handed alpha
Helix 2
2
A
101 105Right-handed 310
Helix 3
3
A
129 133Right-handed 310
Helix 4
4
A
182 185Right-handed 310
Helix 5
5
A
225 230Right-handed alpha
Helix 6
6
A
233 240Right-handed alpha
Helix 7
7
A
314 318Right-handed 310
Helix 8
8
B
50 57Right-handed alpha
Helix 9
9
B
101 105Right-handed 310
Helix 10
10
B
129 133Right-handed 310
Helix 11
11
B
182 185Right-handed 310
Helix 12
12
B
225 230Right-handed alpha
Helix 13
13
B
233 240Right-handed alpha
Helix 14
14
B
314 318Right-handed 310
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There are 18 sheets in PDB entry 1NS4. 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,

There are 5 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
3 9first strand
Strand 2
A
12 18anti-parallel
Strand 3
A
24 28anti-parallel
Strand 4
A
33 39anti-parallel
Strand 5
A
42 43anti-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
64 65first strand
Strand 2
A
168 169anti-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
71 72first strand
Strand 2
A
94 95anti-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
A
76 79first strand
Strand 2
A
82 85anti-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
A
108 113first strand
Strand 2
A
117 126anti-parallel
Strand 3
A
137 146anti-parallel
Strand 4
A
150 159anti-parallel
Strand 5
A
328 338anti-parallel
Strand 6
A
265 271anti-parallel
Strand 7
A
258 262anti-parallel
Strand 8
A
187 190anti-parallel
Strand 9
A
223 224anti-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
A
163 164first strand
Strand 2
A
321 322anti-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
A
172 173first strand
Strand 2
A
301 302anti-parallel
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There are 5 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
210 211first strand
Strand 2
A
192 195anti-parallel
Strand 3
A
243 248anti-parallel
Strand 4
A
275 279anti-parallel
Strand 5
A
304 306anti-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
A
289 290first strand
Strand 2
A
293 294anti-parallel
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There are 5 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
3 9first strand
Strand 2
B
12 18anti-parallel
Strand 3
B
24 28anti-parallel
Strand 4
B
33 39anti-parallel
Strand 5
B
42 43anti-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
B
64 65first strand
Strand 2
B
168 169anti-parallel
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There are 2 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
71 72first strand
Strand 2
B
94 95anti-parallel
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There are 2 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
76 79first strand
Strand 2
B
82 85anti-parallel
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There are 9 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
108 113first strand
Strand 2
B
117 126anti-parallel
Strand 3
B
137 146anti-parallel
Strand 4
B
150 159anti-parallel
Strand 5
B
328 338anti-parallel
Strand 6
B
265 271anti-parallel
Strand 7
B
258 262anti-parallel
Strand 8
B
187 190anti-parallel
Strand 9
B
223 224anti-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
B
163 164first strand
Strand 2
B
321 322anti-parallel
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There are 2 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
172 173first strand
Strand 2
B
301 302anti-parallel
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There are 5 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
210 211first strand
Strand 2
B
192 195anti-parallel
Strand 3
B
243 248anti-parallel
Strand 4
B
275 279anti-parallel
Strand 5
B
304 306anti-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
B
289 290first strand
Strand 2
B
293 294anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il