Analysis of interatomic Contacts of Structural Units in PDB entry:
1R20


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 1R20 entry

There are 2 chains in PDB entry 1R20 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 206ARG 455
D
 VAL 287VAL 528
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 24 helices in PDB entry 1R20. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
209 219Right-handed alpha
Helix 2
2
A
239 243Right-handed 310
Helix 3
3
A
244 267Right-handed alpha
Helix 4
4
A
269 273Right-handed 310
Helix 5
5
A
274 284Right-handed alpha
Helix 6
6
A
285 298Right-handed alpha
Helix 7
7
A
333 338Right-handed alpha
Helix 8
8
A
341 352Right-handed alpha
Helix 9
9
A
352 360Right-handed alpha
Helix 10
10
A
362 375Right-handed alpha
Helix 11
11
A
385 406Right-handed alpha
Helix 12
12
A
412 419Right-handed alpha
Helix 13
13
A
419 438Right-handed alpha
Helix 14
14
A
442 455Right-handed alpha
Helix 15
15
D
291 307Right-handed alpha
Helix 16
16
D
335 354Right-handed alpha
Helix 17
17
D
359 363Right-handed 310
Helix 18
18
D
364 386Right-handed alpha
Helix 19
19
D
404 411Right-handed alpha
Helix 20
20
D
413 429Right-handed alpha
Helix 21
21
D
434 446Right-handed alpha
Helix 22
22
D
454 477Right-handed alpha
Helix 23
23
D
481 513Right-handed alpha
Helix 24
24
D
521 526Right-handed alpha
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There are 2 sheets in PDB entry 1R20. Click on sheet of interest to get list of strands forming it: A, B,

There are 2 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
322 326first strand
Strand 2
A
329 332anti-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
D
388 389first strand
Strand 2
D
394 395anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il