Analysis of interatomic Contacts of Structural Units in PDB entry:
2X1L


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 2X1L entry

There are 3 chains in PDB entry 2X1L (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2TYR 512
B
 SER 2TYR 512
C
 SER 2GLN 513
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 71 helices in PDB entry 2X1L. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
19 39Right-handed alpha
Helix 2
2
A
53 64Right-handed alpha
Helix 3
3
A
66 85Right-handed alpha
Helix 4
4
A
97 114Right-handed alpha
Helix 5
5
A
135 137Right-handed 310
Helix 6
6
A
168 170Right-handed 310
Helix 7
7
A
171 182Right-handed alpha
Helix 8
8
A
188 200Right-handed alpha
Helix 9
9
A
228 235Right-handed alpha
Helix 10
10
A
235 240Right-handed alpha
Helix 11
11
A
248 255Right-handed alpha
Helix 12
12
A
266 272Right-handed alpha
Helix 13
13
A
272 282Right-handed alpha
Helix 14
14
A
311 320Right-handed alpha
Helix 15
15
A
320 332Right-handed alpha
Helix 16
16
A
341 352Right-handed alpha
Helix 17
17
A
357 372Right-handed alpha
Helix 18
18
A
383 395Right-handed alpha
Helix 19
19
A
395 406Right-handed alpha
Helix 20
20
A
408 431Right-handed alpha
Helix 21
21
A
431 436Right-handed alpha
Helix 22
22
A
440 465Right-handed alpha
Helix 23
23
A
469 480Right-handed alpha
Helix 24
24
A
488 493Right-handed 310
Helix 25
25
B
19 39Right-handed alpha
Helix 26
26
B
53 64Right-handed alpha
Helix 27
27
B
66 85Right-handed alpha
Helix 28
28
B
97 114Right-handed alpha
Helix 29
29
B
168 170Right-handed 310
Helix 30
30
B
171 182Right-handed alpha
Helix 31
31
B
188 201Right-handed alpha
Helix 32
32
B
228 235Right-handed alpha
Helix 33
33
B
235 240Right-handed alpha
Helix 34
34
B
248 255Right-handed alpha
Helix 35
35
B
266 272Right-handed alpha
Helix 36
36
B
272 282Right-handed alpha
Helix 37
37
B
311 320Right-handed alpha
Helix 38
38
B
320 332Right-handed alpha
Helix 39
39
B
341 351Right-handed alpha
Helix 40
40
B
352 356Right-handed alpha
Helix 41
41
B
357 372Right-handed alpha
Helix 42
42
B
383 395Right-handed alpha
Helix 43
43
B
395 405Right-handed alpha
Helix 44
44
B
408 431Right-handed alpha
Helix 45
45
B
431 436Right-handed alpha
Helix 46
46
B
440 465Right-handed alpha
Helix 47
47
B
469 480Right-handed alpha
Helix 48
48
B
488 494Right-handed 310
Helix 49
49
C
19 39Right-handed alpha
Helix 50
50
C
53 64Right-handed alpha
Helix 51
51
C
66 85Right-handed alpha
Helix 52
52
C
97 114Right-handed alpha
Helix 53
53
C
168 170Right-handed 310
Helix 54
54
C
171 182Right-handed alpha
Helix 55
55
C
188 200Right-handed alpha
Helix 56
56
C
228 235Right-handed alpha
Helix 57
57
C
235 240Right-handed alpha
Helix 58
58
C
248 255Right-handed alpha
Helix 59
59
C
266 272Right-handed alpha
Helix 60
60
C
272 282Right-handed alpha
Helix 61
61
C
311 320Right-handed alpha
Helix 62
62
C
320 332Right-handed alpha
Helix 63
63
C
341 353Right-handed alpha
Helix 64
64
C
357 372Right-handed alpha
Helix 65
65
C
383 395Right-handed alpha
Helix 66
66
C
395 405Right-handed alpha
Helix 67
67
C
408 431Right-handed alpha
Helix 68
68
C
431 436Right-handed alpha
Helix 69
69
C
440 465Right-handed alpha
Helix 70
70
C
469 480Right-handed alpha
Helix 71
71
C
488 493Right-handed 310
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There are 16 sheets in PDB entry 2X1L. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, BA, BB, BC, BD, BE, CA, CB, CC, CD, CE,

There are 6 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
91 94first strand
Strand 2
A
42 49parallel
Strand 3
A
4 9parallel
Strand 4
A
259 263parallel
Strand 5
A
289 292parallel
Strand 6
A
186 187parallel
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There are 4 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
132 134first strand
Strand 2
A
117 127anti-parallel
Strand 3
A
156 166anti-parallel
Strand 4
A
206 207anti-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
139 141first strand
Strand 2
A
147 149anti-parallel
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There are 3 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
209 210first strand
Strand 2
A
222 227anti-parallel
Strand 3
A
218 219anti-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
295 297first strand
Strand 2
A
338 340parallel
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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
302 303first strand
Strand 2
A
307 308anti-parallel
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There are 6 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
91 94first strand
Strand 2
B
42 49parallel
Strand 3
B
4 9parallel
Strand 4
B
259 263parallel
Strand 5
B
289 292parallel
Strand 6
B
186 187parallel
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There are 3 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
117 121first strand
Strand 2
B
162 166anti-parallel
Strand 3
B
206 207anti-parallel
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There are 3 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
209 210first strand
Strand 2
B
222 227anti-parallel
Strand 3
B
218 219anti-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
295 297first strand
Strand 2
B
338 340parallel
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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
302 303first strand
Strand 2
B
307 308anti-parallel
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There are 6 strands in CA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
91 94first strand
Strand 2
C
42 49parallel
Strand 3
C
4 9parallel
Strand 4
C
259 263parallel
Strand 5
C
289 292parallel
Strand 6
C
186 187parallel
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There are 3 strands in CB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
117 121first strand
Strand 2
C
162 166anti-parallel
Strand 3
C
206 207anti-parallel
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There are 3 strands in CC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
209 210first strand
Strand 2
C
222 227anti-parallel
Strand 3
C
218 219anti-parallel
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There are 2 strands in CD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
295 297first strand
Strand 2
C
338 340parallel
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There are 2 strands in CE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
302 303first strand
Strand 2
C
307 308anti-parallel
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