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


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 2XAD entry

There are 4 chains in PDB entry 2XAD (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 7SER 273
B
 ALA 7SER 273
C
 THR 8SER 273
D
 THR 8SER 273
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 40 helices in PDB entry 2XAD. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
18 34Right-handed alpha
Helix 2
2
A
53 63Right-handed alpha
Helix 3
3
A
70 87Right-handed alpha
Helix 4
4
A
97 101Right-handed 310
Helix 5
5
A
125 148Right-handed alpha
Helix 6
6
A
161 179Right-handed alpha
Helix 7
7
A
189 194Right-handed alpha
Helix 8
8
A
215 228Right-handed alpha
Helix 9
9
A
229 233Right-handed 310
Helix 10
10
A
243 255Right-handed alpha
Helix 11
11
B
18 34Right-handed alpha
Helix 12
12
B
53 63Right-handed alpha
Helix 13
13
B
70 86Right-handed alpha
Helix 14
14
B
97 101Right-handed 310
Helix 15
15
B
125 148Right-handed alpha
Helix 16
16
B
161 178Right-handed alpha
Helix 17
17
B
189 194Right-handed alpha
Helix 18
18
B
215 228Right-handed alpha
Helix 19
19
B
229 233Right-handed 310
Helix 20
20
B
243 255Right-handed alpha
Helix 21
21
C
18 34Right-handed alpha
Helix 22
22
C
53 63Right-handed alpha
Helix 23
23
C
70 86Right-handed alpha
Helix 24
24
C
97 101Right-handed 310
Helix 25
25
C
126 148Right-handed alpha
Helix 26
26
C
161 178Right-handed alpha
Helix 27
27
C
189 194Right-handed alpha
Helix 28
28
C
215 228Right-handed alpha
Helix 29
29
C
229 233Right-handed 310
Helix 30
30
C
243 255Right-handed alpha
Helix 31
31
D
18 34Right-handed alpha
Helix 32
32
D
53 63Right-handed alpha
Helix 33
33
D
70 86Right-handed alpha
Helix 34
34
D
97 101Right-handed 310
Helix 35
35
D
125 148Right-handed alpha
Helix 36
36
D
161 179Right-handed alpha
Helix 37
37
D
189 194Right-handed alpha
Helix 38
38
D
215 228Right-handed alpha
Helix 39
39
D
229 233Right-handed 310
Helix 40
40
D
243 255Right-handed alpha
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There are 16 sheets in PDB entry 2XAD. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, BA, BB, BC, BD, CA, CB, CC, CD, A, DB, C, DD,

There are 7 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
89 92first strand
Strand 2
A
37 42parallel
Strand 3
A
9 14parallel
Strand 4
A
151 155parallel
Strand 5
A
182 185parallel
Strand 6
A
263 269anti-parallel
Strand 7
A
210 211parallel
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There are 7 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
89 92first strand
Strand 2
A
37 42parallel
Strand 3
A
9 14parallel
Strand 4
A
151 155parallel
Strand 5
A
182 185parallel
Strand 6
A
263 269anti-parallel
Strand 7
A
204 206anti-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
210 211first strand
Strand 2
A
263 269parallel
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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
110 113first strand
Strand 2
A
118 121anti-parallel
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There are 7 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
89 92first strand
Strand 2
B
37 42parallel
Strand 3
B
9 14parallel
Strand 4
B
151 155parallel
Strand 5
B
182 185parallel
Strand 6
B
263 269anti-parallel
Strand 7
B
210 211parallel
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There are 7 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
89 92first strand
Strand 2
B
37 42parallel
Strand 3
B
9 14parallel
Strand 4
B
151 155parallel
Strand 5
B
182 185parallel
Strand 6
B
263 269anti-parallel
Strand 7
B
204 206anti-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
210 211first strand
Strand 2
B
263 269parallel
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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
110 112first strand
Strand 2
B
119 121anti-parallel
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There are 7 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
89 92first strand
Strand 2
C
37 42parallel
Strand 3
C
9 14parallel
Strand 4
C
151 155parallel
Strand 5
C
182 185parallel
Strand 6
C
263 269anti-parallel
Strand 7
C
210 211parallel
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There are 7 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
89 92first strand
Strand 2
C
37 42parallel
Strand 3
C
9 14parallel
Strand 4
C
151 155parallel
Strand 5
C
182 185parallel
Strand 6
C
263 269anti-parallel
Strand 7
C
204 206anti-parallel
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There are 2 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
210 211first strand
Strand 2
C
263 269parallel
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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
110 113first strand
Strand 2
C
118 121anti-parallel
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There are 7 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
89 92first strand
Strand 2
D
37 42parallel
Strand 3
D
9 14parallel
Strand 4
D
151 155parallel
Strand 5
D
182 185parallel
Strand 6
D
263 269anti-parallel
Strand 7
D
210 211parallel
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There are 7 strands in DB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
89 92first strand
Strand 2
D
37 42parallel
Strand 3
D
9 14parallel
Strand 4
D
151 155parallel
Strand 5
D
182 185parallel
Strand 6
D
263 269anti-parallel
Strand 7
D
204 206anti-parallel
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There are 2 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
210 211first strand
Strand 2
D
263 269parallel
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There are 2 strands in DD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
110 113first strand
Strand 2
D
118 121anti-parallel
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