Analysis of interatomic Contacts of Structural Units in PDB entry:
1X2H


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 1X2H entry

There are 3 chains in PDB entry 1X2H (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 1ARG 337
B
 SER 1ARG 337
C
 SER 1ARG 337
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 39 helices in PDB entry 1X2H. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
12 26Right-handed alpha
Helix 2
2
A
50 55Right-handed alpha
Helix 3
3
A
56 63Right-handed alpha
Helix 4
4
A
96 110Right-handed alpha
Helix 5
5
A
159 165Right-handed alpha
Helix 6
6
A
168 173Right-handed alpha
Helix 7
7
A
195 212Right-handed alpha
Helix 8
8
A
230 240Right-handed alpha
Helix 9
9
A
240 245Right-handed alpha
Helix 10
10
A
287 296Right-handed alpha
Helix 11
11
A
303 314Right-handed alpha
Helix 12
12
A
315 320Right-handed 310
Helix 13
13
A
321 336Right-handed alpha
Helix 14
14
B
12 26Right-handed alpha
Helix 15
15
B
50 55Right-handed alpha
Helix 16
16
B
56 64Right-handed alpha
Helix 17
17
B
96 111Right-handed alpha
Helix 18
18
B
159 164Right-handed 310
Helix 19
19
B
168 174Right-handed alpha
Helix 20
20
B
187 191Right-handed 310
Helix 21
21
B
195 211Right-handed alpha
Helix 22
22
B
230 239Right-handed alpha
Helix 23
23
B
240 245Right-handed alpha
Helix 24
24
B
287 296Right-handed alpha
Helix 25
25
B
303 313Right-handed alpha
Helix 26
26
B
314 320Right-handed 310
Helix 27
27
B
321 337Right-handed alpha
Helix 28
28
C
12 26Right-handed alpha
Helix 29
29
C
50 55Right-handed alpha
Helix 30
30
C
56 63Right-handed alpha
Helix 31
31
C
96 110Right-handed alpha
Helix 32
32
C
159 165Right-handed 310
Helix 33
33
C
195 212Right-handed alpha
Helix 34
34
C
230 240Right-handed alpha
Helix 35
35
C
240 245Right-handed alpha
Helix 36
36
C
287 296Right-handed alpha
Helix 37
37
C
303 313Right-handed alpha
Helix 38
38
C
314 320Right-handed 310
Helix 39
39
C
321 336Right-handed alpha
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There are 9 sheets in PDB entry 1X2H. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

There are 8 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
115 117first strand
Strand 2
A
123 125anti-parallel
Strand 3
A
132 141anti-parallel
Strand 4
A
145 153anti-parallel
Strand 5
A
83 91anti-parallel
Strand 6
A
32 37anti-parallel
Strand 7
A
3 8parallel
Strand 8
A
217 220parallel
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There are 3 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
66 69first strand
Strand 2
A
42 45parallel
Strand 3
A
77 79anti-parallel
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There are 3 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
253 259first strand
Strand 2
A
262 271anti-parallel
Strand 3
A
274 282anti-parallel
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There are 7 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
123 127first strand
Strand 2
B
130 141anti-parallel
Strand 3
B
145 153anti-parallel
Strand 4
B
83 91anti-parallel
Strand 5
B
32 37anti-parallel
Strand 6
B
3 8parallel
Strand 7
B
218 220parallel
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There are 3 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
66 69first strand
Strand 2
B
42 45parallel
Strand 3
B
77 79anti-parallel
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There are 3 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
253 259first strand
Strand 2
B
262 271anti-parallel
Strand 3
B
274 282anti-parallel
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There are 7 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
123 125first strand
Strand 2
C
132 141anti-parallel
Strand 3
C
145 153anti-parallel
Strand 4
C
83 91anti-parallel
Strand 5
C
32 37anti-parallel
Strand 6
C
3 8parallel
Strand 7
C
218 220parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
66 69first strand
Strand 2
C
42 45parallel
Strand 3
C
77 79anti-parallel
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There are 3 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
253 259first strand
Strand 2
C
262 271anti-parallel
Strand 3
C
274 282anti-parallel
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