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


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 2XSG entry

There are 2 chains in PDB entry 2XSG (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 7ALA 771
B
 ASP 8ALA 771
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 50 helices in PDB entry 2XSG. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 13Right-handed 310
Helix 2
2
A
93 98Right-handed 310
Helix 3
3
A
102 104Right-handed 310
Helix 4
4
A
124 127Right-handed 310
Helix 5
5
A
242 245Right-handed 310
Helix 6
6
A
258 271Right-handed alpha
Helix 7
7
A
274 291Right-handed alpha
Helix 8
8
A
305 319Right-handed alpha
Helix 9
9
A
352 388Right-handed alpha
Helix 10
10
A
393 397Right-handed 310
Helix 11
11
A
408 419Right-handed alpha
Helix 12
12
A
426 439Right-handed alpha
Helix 13
13
A
442 449Right-handed alpha
Helix 14
14
A
454 475Right-handed alpha
Helix 15
15
A
477 495Right-handed alpha
Helix 16
16
A
530 534Right-handed 310
Helix 17
17
A
538 543Right-handed alpha
Helix 18
18
A
549 557Right-handed alpha
Helix 19
19
A
559 571Right-handed alpha
Helix 20
20
A
578 582Right-handed 310
Helix 21
21
A
593 600Right-handed 310
Helix 22
22
A
603 617Right-handed alpha
Helix 23
23
A
664 676Right-handed alpha
Helix 24
24
A
738 743Right-handed alpha
Helix 25
25
B
8 13Right-handed 310
Helix 26
26
B
93 98Right-handed 310
Helix 27
27
B
102 104Right-handed 310
Helix 28
28
B
124 127Right-handed 310
Helix 29
29
B
242 245Right-handed 310
Helix 30
30
B
258 271Right-handed alpha
Helix 31
31
B
274 291Right-handed alpha
Helix 32
32
B
305 319Right-handed alpha
Helix 33
33
B
352 388Right-handed alpha
Helix 34
34
B
393 397Right-handed 310
Helix 35
35
B
408 419Right-handed alpha
Helix 36
36
B
426 439Right-handed alpha
Helix 37
37
B
442 449Right-handed alpha
Helix 38
38
B
454 475Right-handed alpha
Helix 39
39
B
477 489Right-handed alpha
Helix 40
40
B
489 495Right-handed alpha
Helix 41
41
B
530 534Right-handed 310
Helix 42
42
B
538 543Right-handed alpha
Helix 43
43
B
549 558Right-handed alpha
Helix 44
44
B
559 571Right-handed alpha
Helix 45
45
B
578 582Right-handed 310
Helix 46
46
B
593 602Right-handed 310
Helix 47
47
B
603 617Right-handed alpha
Helix 48
48
B
664 676Right-handed alpha
Helix 49
49
B
738 743Right-handed alpha
Helix 50
50
B
767 771Right-handed 310
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There are 18 sheets in PDB entry 2XSG. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, AI, BA, BB, BC, BD, BE, BF, BG, BH, BI,

There are 3 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
40 44first strand
Strand 2
A
58 63anti-parallel
Strand 3
A
99 100anti-parallel
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There are 5 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
80 84first strand
Strand 2
A
158 162anti-parallel
Strand 3
A
235 240anti-parallel
Strand 4
A
212 217anti-parallel
Strand 5
A
223 224anti-parallel
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There are 9 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
106 109first strand
Strand 2
A
112 121anti-parallel
Strand 3
A
128 140anti-parallel
Strand 4
A
144 150anti-parallel
Strand 5
A
248 255anti-parallel
Strand 6
A
198 208anti-parallel
Strand 7
A
185 195anti-parallel
Strand 8
A
169 179anti-parallel
Strand 9
A
228 231anti-parallel
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There are 6 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
293 296first strand
Strand 2
A
696 700anti-parallel
Strand 3
A
706 712anti-parallel
Strand 4
A
746 752parallel
Strand 5
A
720 726anti-parallel
Strand 6
A
729 730anti-parallel
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There are 2 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
323 324first strand
Strand 2
A
348 349anti-parallel
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There are 2 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
331 333first strand
Strand 2
A
339 341anti-parallel
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There are 2 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
496 502first strand
Strand 2
A
508 512anti-parallel
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There are 3 strands in AH sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
618 623first strand
Strand 2
A
638 646anti-parallel
Strand 3
A
634 635anti-parallel
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There are 3 strands in AI sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
677 678first strand
Strand 2
A
686 689anti-parallel
Strand 3
A
735 737anti-parallel
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There are 3 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
40 43first strand
Strand 2
B
58 63anti-parallel
Strand 3
B
99 100anti-parallel
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There are 5 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
80 84first strand
Strand 2
B
158 162anti-parallel
Strand 3
B
235 240anti-parallel
Strand 4
B
212 217anti-parallel
Strand 5
B
223 224anti-parallel
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There are 9 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
106 109first strand
Strand 2
B
112 121anti-parallel
Strand 3
B
128 140anti-parallel
Strand 4
B
144 150anti-parallel
Strand 5
B
248 255anti-parallel
Strand 6
B
198 208anti-parallel
Strand 7
B
185 195anti-parallel
Strand 8
B
169 179anti-parallel
Strand 9
B
228 231anti-parallel
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There are 6 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
293 296first strand
Strand 2
B
696 700anti-parallel
Strand 3
B
706 712anti-parallel
Strand 4
B
746 752parallel
Strand 5
B
720 726anti-parallel
Strand 6
B
729 730anti-parallel
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There are 2 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
323 324first strand
Strand 2
B
348 349anti-parallel
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There are 2 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
331 333first strand
Strand 2
B
339 341anti-parallel
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There are 2 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
496 502first strand
Strand 2
B
508 512anti-parallel
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There are 3 strands in BH sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
618 623first strand
Strand 2
B
638 646anti-parallel
Strand 3
B
634 635anti-parallel
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There are 3 strands in BI sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
677 678first strand
Strand 2
B
686 689anti-parallel
Strand 3
B
735 737anti-parallel
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