Analysis of interatomic Contacts of Structural Units in PDB entry:
2A1F


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 2A1F entry

There are 6 chains in PDB entry 2A1F (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LEU 1GLY 239
B
 LEU 1GLY 239
C
 SER 2HIS 245
D
 SER 2HIS 244
E
 SER 2HIS 243
F
 SER 2HIS 242
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 54 helices in PDB entry 2A1F. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
14 19Right-handed 310
Helix 2
2
A
27 43Right-handed alpha
Helix 3
3
A
60 66Right-handed alpha
Helix 4
4
A
69 95Right-handed alpha
Helix 5
5
A
115 125Right-handed alpha
Helix 6
6
A
141 153Right-handed alpha
Helix 7
7
A
185 192Right-handed alpha
Helix 8
8
A
198 209Right-handed alpha
Helix 9
9
A
221 228Right-handed alpha
Helix 10
10
B
14 19Right-handed 310
Helix 11
11
B
27 44Right-handed alpha
Helix 12
12
B
60 66Right-handed alpha
Helix 13
13
B
69 95Right-handed alpha
Helix 14
14
B
115 125Right-handed alpha
Helix 15
15
B
141 153Right-handed alpha
Helix 16
16
B
186 192Right-handed alpha
Helix 17
17
B
198 209Right-handed alpha
Helix 18
18
B
221 228Right-handed alpha
Helix 19
19
C
14 18Right-handed 310
Helix 20
20
C
27 43Right-handed alpha
Helix 21
21
C
60 66Right-handed alpha
Helix 22
22
C
69 95Right-handed alpha
Helix 23
23
C
115 125Right-handed alpha
Helix 24
24
C
141 153Right-handed alpha
Helix 25
25
C
186 192Right-handed alpha
Helix 26
26
C
198 209Right-handed alpha
Helix 27
27
C
221 228Right-handed alpha
Helix 28
28
D
15 19Right-handed 310
Helix 29
29
D
27 44Right-handed alpha
Helix 30
30
D
60 66Right-handed alpha
Helix 31
31
D
69 95Right-handed alpha
Helix 32
32
D
115 125Right-handed alpha
Helix 33
33
D
141 153Right-handed alpha
Helix 34
34
D
186 192Right-handed alpha
Helix 35
35
D
198 209Right-handed alpha
Helix 36
36
D
221 229Right-handed alpha
Helix 37
37
E
14 19Right-handed 310
Helix 38
38
E
27 44Right-handed alpha
Helix 39
39
E
60 66Right-handed alpha
Helix 40
40
E
69 95Right-handed alpha
Helix 41
41
E
115 125Right-handed alpha
Helix 42
42
E
141 153Right-handed alpha
Helix 43
43
E
186 192Right-handed alpha
Helix 44
44
E
198 209Right-handed alpha
Helix 45
45
E
221 229Right-handed alpha
Helix 46
46
F
14 18Right-handed 310
Helix 47
47
F
27 44Right-handed alpha
Helix 48
48
F
60 66Right-handed alpha
Helix 49
49
F
69 95Right-handed alpha
Helix 50
50
F
115 125Right-handed alpha
Helix 51
51
F
141 153Right-handed alpha
Helix 52
52
F
186 192Right-handed alpha
Helix 53
53
F
198 209Right-handed alpha
Helix 54
54
F
221 228Right-handed alpha
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There are 8 sheets in PDB entry 2A1F. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 9 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
112 113first strand
Strand 2
A
99 103parallel
Strand 3
A
128 132parallel
Strand 4
A
47 52parallel
Strand 5
A
8 13parallel
Strand 6
A
157 162parallel
Strand 7
A
212 216parallel
Strand 8
A
234 236anti-parallel
Strand 9
A
183 184parallel
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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
B
112 113first strand
Strand 2
B
99 103parallel
Strand 3
B
128 132parallel
Strand 4
B
47 52parallel
Strand 5
B
8 13parallel
Strand 6
B
157 162parallel
Strand 7
B
212 216parallel
Strand 8
B
234 237anti-parallel
Strand 9
B
183 185parallel
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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
B
167 168first strand
Strand 2
B
180 181anti-parallel
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There are 9 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
112 113first strand
Strand 2
C
99 103parallel
Strand 3
C
128 132parallel
Strand 4
C
47 52parallel
Strand 5
C
8 13parallel
Strand 6
C
157 162parallel
Strand 7
C
212 216parallel
Strand 8
C
234 237anti-parallel
Strand 9
C
183 185parallel
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There are 9 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
112 113first strand
Strand 2
D
99 103parallel
Strand 3
D
128 132parallel
Strand 4
D
47 52parallel
Strand 5
D
8 13parallel
Strand 6
D
157 162parallel
Strand 7
D
212 216parallel
Strand 8
D
234 237anti-parallel
Strand 9
D
183 185parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
167 168first strand
Strand 2
D
180 181anti-parallel
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There are 9 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
112 113first strand
Strand 2
E
99 103parallel
Strand 3
E
128 132parallel
Strand 4
E
47 52parallel
Strand 5
E
8 13parallel
Strand 6
E
157 162parallel
Strand 7
E
212 216parallel
Strand 8
E
234 237anti-parallel
Strand 9
E
183 185parallel
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There are 9 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
112 113first strand
Strand 2
F
99 103parallel
Strand 3
F
128 132parallel
Strand 4
F
47 52parallel
Strand 5
F
8 13parallel
Strand 6
F
157 162parallel
Strand 7
F
212 216parallel
Strand 8
F
234 237anti-parallel
Strand 9
F
183 185parallel
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