Analysis of interatomic Contacts of Structural Units in PDB entry:
2X51


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 2X51 entry

There are 2 chains in PDB entry 2X51 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 4GLU 815
B
 GLN 4LYS 149
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 42 helices in PDB entry 2X51. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
46 48Right-handed 310
Helix 2
2
A
62 65Right-handed 310
Helix 3
3
A
69 83Right-handed alpha
Helix 4
4
A
108 115Right-handed alpha
Helix 5
5
A
126 142Right-handed alpha
Helix 6
6
A
156 173Right-handed alpha
Helix 7
7
A
177 193Right-handed alpha
Helix 8
8
A
232 236Right-handed 310
Helix 9
9
A
245 255Right-handed alpha
Helix 10
10
A
256 263Right-handed alpha
Helix 11
11
A
267 271Right-handed 310
Helix 12
12
A
312 327Right-handed alpha
Helix 13
13
A
330 348Right-handed alpha
Helix 14
14
A
368 379Right-handed alpha
Helix 15
15
A
382 391Right-handed alpha
Helix 16
16
A
412 442Right-handed alpha
Helix 17
17
A
467 499Right-handed alpha
Helix 18
18
A
511 520Right-handed alpha
Helix 19
19
A
524 534Right-handed alpha
Helix 20
20
A
539 551Right-handed alpha
Helix 21
21
A
559 563Right-handed 310
Helix 22
22
A
592 597Right-handed alpha
Helix 23
23
A
602 611Right-handed alpha
Helix 24
24
A
614 621Right-handed alpha
Helix 25
25
A
642 660Right-handed alpha
Helix 26
26
A
681 692Right-handed alpha
Helix 27
27
A
693 702Right-handed alpha
Helix 28
28
A
711 719Right-handed alpha
Helix 29
29
A
720 722Right-handed 310
Helix 30
30
A
723 728Right-handed alpha
Helix 31
31
A
730 743Right-handed alpha
Helix 32
32
A
761 771Right-handed alpha
Helix 33
33
A
773 783Right-handed alpha
Helix 34
34
A
784 815Right-handed alpha
Helix 35
35
B
6 21Right-handed alpha
Helix 36
36
B
29 40Right-handed alpha
Helix 37
37
B
45 55Right-handed alpha
Helix 38
38
B
65 74Right-handed alpha
Helix 39
39
B
81 94Right-handed alpha
Helix 40
40
B
102 113Right-handed alpha
Helix 41
41
B
118 130Right-handed alpha
Helix 42
42
B
139 147Right-handed alpha
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There are 9 sheets in PDB entry 2X51. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, BA,

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
15 19first strand
Strand 2
A
7 11anti-parallel
Strand 3
A
49 50anti-parallel
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There are 2 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
28 30first strand
Strand 2
A
42 44anti-parallel
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There are 7 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
87 90first strand
Strand 2
A
93 97anti-parallel
Strand 3
A
662 669parallel
Strand 4
A
145 150parallel
Strand 5
A
450 456parallel
Strand 6
A
207 214anti-parallel
Strand 7
A
220 228anti-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
194 195first strand
Strand 2
A
203 204anti-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
352 354first strand
Strand 2
A
362 364anti-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
392 393first strand
Strand 2
A
409 410anti-parallel
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There are 3 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
557 558first strand
Strand 2
A
576 581anti-parallel
Strand 3
A
584 589anti-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
707 710first strand
Strand 2
A
755 758anti-parallel
Strand 3
A
749 751anti-parallel
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There are 2 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
100 101first strand
Strand 2
B
137 138anti-parallel
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