Analysis of interatomic Contacts of Structural Units in PDB entry:
2AN1


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 2AN1 entry

There are 4 chains in PDB entry 2AN1 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS 4PHE 292
B
 HIS 4PHE 292
C
 PHE 5LYS 290
D
 HIS 4PHE 292
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 31 helices in PDB entry 2AN1. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
21 33Right-handed alpha
Helix 2
2
A
41 47Right-handed alpha
Helix 3
3
A
56 64Right-handed alpha
Helix 4
4
A
72 84Right-handed alpha
Helix 5
5
A
108 118Right-handed alpha
Helix 6
6
A
184 188Right-handed 310
Helix 7
7
A
189 194Right-handed alpha
Helix 8
8
A
276 286Right-handed alpha
Helix 9
9
B
21 33Right-handed alpha
Helix 10
10
B
41 46Right-handed alpha
Helix 11
11
B
56 64Right-handed alpha
Helix 12
12
B
72 84Right-handed alpha
Helix 13
13
B
108 118Right-handed alpha
Helix 14
14
B
184 188Right-handed 310
Helix 15
15
B
189 194Right-handed alpha
Helix 16
16
B
276 286Right-handed alpha
Helix 17
17
C
21 33Right-handed alpha
Helix 18
18
C
41 45Right-handed alpha
Helix 19
19
C
56 64Right-handed alpha
Helix 20
20
C
71 84Right-handed alpha
Helix 21
21
C
108 118Right-handed alpha
Helix 22
22
C
185 188Right-handed 310
Helix 23
23
C
189 194Right-handed alpha
Helix 24
24
C
276 286Right-handed alpha
Helix 25
25
D
22 33Right-handed alpha
Helix 26
26
D
56 64Right-handed alpha
Helix 27
27
D
71 84Right-handed alpha
Helix 28
28
D
108 118Right-handed alpha
Helix 29
29
D
184 188Right-handed 310
Helix 30
30
D
189 194Right-handed alpha
Helix 31
31
D
276 286Right-handed alpha
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There are 12 sheets in PDB entry 2AN1. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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
54 55first strand
Strand 2
A
36 40parallel
Strand 3
A
7 11parallel
Strand 4
A
66 69parallel
Strand 5
A
89 92parallel
Strand 6
A
257 272parallel
Strand 7
A
121 134anti-parallel
Strand 8
A
142 145anti-parallel
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There are 9 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
54 55first strand
Strand 2
A
36 40parallel
Strand 3
A
7 11parallel
Strand 4
A
66 69parallel
Strand 5
A
89 92parallel
Strand 6
A
257 272parallel
Strand 7
A
229 233anti-parallel
Strand 8
A
160 166anti-parallel
Strand 9
A
169 176anti-parallel
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There are 7 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
250 252first strand
Strand 2
A
240 244anti-parallel
Strand 3
A
148 153anti-parallel
Strand 4
A
178 182anti-parallel
Strand 5
A
205 211anti-parallel
Strand 6
A
221 224anti-parallel
Strand 7
D
198 199parallel
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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
A
198 199first strand
Strand 2
D
221 224parallel
Strand 3
D
205 211anti-parallel
Strand 4
D
178 182anti-parallel
Strand 5
D
148 153anti-parallel
Strand 6
D
240 244anti-parallel
Strand 7
D
250 252anti-parallel
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There are 8 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
54 55first strand
Strand 2
B
36 40parallel
Strand 3
B
7 11parallel
Strand 4
B
66 69parallel
Strand 5
B
89 92parallel
Strand 6
B
257 272parallel
Strand 7
B
121 135anti-parallel
Strand 8
B
138 145anti-parallel
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There are 9 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
54 55first strand
Strand 2
B
36 40parallel
Strand 3
B
7 11parallel
Strand 4
B
66 69parallel
Strand 5
B
89 92parallel
Strand 6
B
257 272parallel
Strand 7
B
229 235anti-parallel
Strand 8
B
160 166anti-parallel
Strand 9
B
169 176anti-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
B
248 251first strand
Strand 2
B
240 244anti-parallel
Strand 3
B
148 153anti-parallel
Strand 4
B
178 182anti-parallel
Strand 5
B
205 211anti-parallel
Strand 6
B
221 224anti-parallel
Strand 7
C
198 199parallel
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There are 7 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
198 199first strand
Strand 2
C
221 224parallel
Strand 3
C
205 211anti-parallel
Strand 4
C
178 182anti-parallel
Strand 5
C
148 152anti-parallel
Strand 6
C
240 244anti-parallel
Strand 7
C
250 252anti-parallel
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There are 8 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
54 55first strand
Strand 2
C
36 40parallel
Strand 3
C
7 11parallel
Strand 4
C
66 70parallel
Strand 5
C
89 93parallel
Strand 6
C
257 272parallel
Strand 7
C
121 135anti-parallel
Strand 8
C
138 145anti-parallel
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There are 9 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
54 55first strand
Strand 2
C
36 40parallel
Strand 3
C
7 11parallel
Strand 4
C
66 70parallel
Strand 5
C
89 93parallel
Strand 6
C
257 272parallel
Strand 7
C
229 232anti-parallel
Strand 8
C
160 166anti-parallel
Strand 9
C
169 176anti-parallel
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There are 7 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
36 39first strand
Strand 2
D
7 11parallel
Strand 3
D
66 70parallel
Strand 4
D
89 93parallel
Strand 5
D
257 272parallel
Strand 6
D
126 135anti-parallel
Strand 7
D
138 145anti-parallel
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There are 5 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
121 123first strand
Strand 2
D
257 272anti-parallel
Strand 3
D
229 233anti-parallel
Strand 4
D
160 166anti-parallel
Strand 5
D
169 176anti-parallel
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