Analysis of interatomic Contacts of Structural Units in PDB entry:
2X50


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 2X50 entry

There are 2 chains in PDB entry 2X50 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2LYS 486
B
 SER 2SER 488
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 36 helices in PDB entry 2X50. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
13 26Right-handed alpha
Helix 2
2
A
49 55Right-handed alpha
Helix 3
3
A
56 77Right-handed alpha
Helix 4
4
A
78 80Right-handed 310
Helix 5
5
A
92 117Right-handed alpha
Helix 6
6
A
171 175Right-handed 310
Helix 7
7
A
177 182Right-handed alpha
Helix 8
8
A
197 210Right-handed alpha
Helix 9
9
A
231 246Right-handed alpha
Helix 10
10
A
295 300Right-handed alpha
Helix 11
11
A
304 308Right-handed 310
Helix 12
12
A
326 329Right-handed 310
Helix 13
13
A
334 350Right-handed alpha
Helix 14
14
A
378 385Right-handed alpha
Helix 15
15
A
400 405Right-handed alpha
Helix 16
16
A
433 447Right-handed alpha
Helix 17
17
A
450 455Right-handed alpha
Helix 18
18
A
464 470Right-handed 310
Helix 19
19
B
13 26Right-handed alpha
Helix 20
20
B
49 55Right-handed alpha
Helix 21
21
B
56 76Right-handed alpha
Helix 22
22
B
77 80Right-handed 310
Helix 23
23
B
91 117Right-handed alpha
Helix 24
24
B
171 175Right-handed 310
Helix 25
25
B
177 182Right-handed alpha
Helix 26
26
B
197 211Right-handed alpha
Helix 27
27
B
231 245Right-handed alpha
Helix 28
28
B
295 300Right-handed alpha
Helix 29
29
B
304 308Right-handed 310
Helix 30
30
B
326 330Right-handed 310
Helix 31
31
B
334 350Right-handed alpha
Helix 32
32
B
378 385Right-handed alpha
Helix 33
33
B
400 405Right-handed alpha
Helix 34
34
B
433 447Right-handed alpha
Helix 35
35
B
450 455Right-handed alpha
Helix 36
36
B
464 470Right-handed 310
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There are 14 sheets in PDB entry 2X50. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, BA, BB, BC, BD, BE, BF, BG,

There are 5 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
120 124first strand
Strand 2
A
31 35parallel
Strand 3
A
5 10parallel
Strand 4
A
147 158parallel
Strand 5
A
322 324anti-parallel
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There are 6 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
120 124first strand
Strand 2
A
31 35parallel
Strand 3
A
5 10parallel
Strand 4
A
147 158parallel
Strand 5
A
134 138anti-parallel
Strand 6
A
126 129anti-parallel
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There are 2 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
322 324first strand
Strand 2
A
147 158anti-parallel
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There are 2 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
162 164first strand
Strand 2
A
287 289anti-parallel
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There are 4 strands in AE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
248 250first strand
Strand 2
A
216 220parallel
Strand 3
A
190 194parallel
Strand 4
A
280 283parallel
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There are 3 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
257 260first strand
Strand 2
A
266 269anti-parallel
Strand 3
A
275 278anti-parallel
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There are 7 strands in AG sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
364 366first strand
Strand 2
A
372 376anti-parallel
Strand 3
A
424 430anti-parallel
Strand 4
A
411 418anti-parallel
Strand 5
A
388 396anti-parallel
Strand 6
A
476 479anti-parallel
Strand 7
A
482 484anti-parallel
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There are 5 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
120 124first strand
Strand 2
B
31 35parallel
Strand 3
B
5 10parallel
Strand 4
B
147 158parallel
Strand 5
B
322 324anti-parallel
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There are 6 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
120 124first strand
Strand 2
B
31 35parallel
Strand 3
B
5 10parallel
Strand 4
B
147 158parallel
Strand 5
B
134 138anti-parallel
Strand 6
B
126 131anti-parallel
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There are 2 strands in BC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
322 324first strand
Strand 2
B
147 158anti-parallel
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There are 2 strands in BD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
162 164first strand
Strand 2
B
287 289anti-parallel
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There are 4 strands in BE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
248 250first strand
Strand 2
B
216 220parallel
Strand 3
B
190 194parallel
Strand 4
B
280 283parallel
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There are 3 strands in BF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
257 260first strand
Strand 2
B
266 269anti-parallel
Strand 3
B
275 278anti-parallel
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There are 7 strands in BG sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
364 366first strand
Strand 2
B
372 376anti-parallel
Strand 3
B
424 430anti-parallel
Strand 4
B
411 418anti-parallel
Strand 5
B
388 396anti-parallel
Strand 6
B
476 479anti-parallel
Strand 7
B
482 484anti-parallel
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