Analysis of interatomic Contacts of Structural Units in PDB entry:
1NH3


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 1NH3 entry

There are 6 chains in PDB entry 1NH3 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
B
 A 1 U 9
C
 G 12 T 22
D
 A 101 C 111
D
 A 113 T 122
A
 TRP 203ASN 722
A
 LEU 724PHE 765
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 20 helices in PDB entry 1NH3. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
252 262Right-handed alpha
Helix 2
2
A
271 281Right-handed alpha
Helix 3
3
A
289 294Right-handed alpha
Helix 4
4
A
296 298Right-handed 310
Helix 5
5
A
302 315Right-handed alpha
Helix 6
6
A
322 327Right-handed alpha
Helix 7
7
A
332 338Right-handed alpha
Helix 8
8
A
433 449Right-handed alpha
Helix 9
9
A
453 464Right-handed alpha
Helix 10
10
A
465 467Right-handed 310
Helix 11
11
A
469 485Right-handed alpha
Helix 12
12
A
508 510Right-handed 310
Helix 13
13
A
544 556Right-handed alpha
Helix 14
14
A
569 581Right-handed alpha
Helix 15
15
A
587 605Right-handed alpha
Helix 16
16
A
615 623Right-handed alpha
Helix 17
17
A
725 736Right-handed alpha
Helix 18
18
A
739 743Right-handed 310
Helix 19
19
A
747 752Right-handed alpha
Helix 20
20
A
752 757Right-handed alpha
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There are 4 sheets in PDB entry 1NH3. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 3 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
221 222first strand
Strand 2
A
340 342anti-parallel
Strand 3
A
348 349anti-parallel
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There are 3 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
245 246first strand
Strand 2
A
241 242anti-parallel
Strand 3
A
300 301anti-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
403 405first strand
Strand 2
A
383 385parallel
Strand 3
A
414 417anti-parallel
Strand 4
A
424 427anti-parallel
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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
512 518first strand
Strand 2
A
521 530anti-parallel
Strand 3
A
536 542anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il