Analysis of interatomic Contacts of Structural Units in PDB entry:
2A1D


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 2A1D entry

There are 6 chains in PDB entry 2A1D (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PHE 1ARG 15
B
 ILE 16SER 247
D
 MET 0GLY 281
E
 PHE 1ARG 15
F
 ILE 16SER 247
H
 MET 0GLY 281
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 36 helices in PDB entry 2A1D. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
1 1Right-handed alpha
Helix 2
2
A
7 11Right-handed 310
Helix 3
3
A
14 14Right-handed alpha
Helix 4
4
B
55 58Right-handed 310
Helix 5
5
B
60 60Right-handed 310
Helix 6
6
B
127 130Right-handed alpha
Helix 7
7
B
164 171Right-handed alpha
Helix 8
8
B
231 243Right-handed alpha
Helix 9
9
D
23 47Right-handed alpha
Helix 10
10
D
48 51Right-handed 310
Helix 11
11
D
55 93Right-handed alpha
Helix 12
12
D
114 142Right-handed alpha
Helix 13
13
D
143 147Right-handed 310
Helix 14
14
D
150 177Right-handed alpha
Helix 15
15
D
181 197Right-handed alpha
Helix 16
16
D
207 230Right-handed alpha
Helix 17
17
D
250 268Right-handed alpha
Helix 18
18
D
271 275Right-handed 310
Helix 19
19
E
1 1Right-handed alpha
Helix 20
20
E
7 11Right-handed 310
Helix 21
21
E
14 14Right-handed alpha
Helix 22
22
F
55 58Right-handed 310
Helix 23
23
F
60 60Right-handed 310
Helix 24
24
F
127 130Right-handed alpha
Helix 25
25
F
164 171Right-handed alpha
Helix 26
26
F
231 243Right-handed alpha
Helix 27
27
H
23 47Right-handed alpha
Helix 28
28
H
48 51Right-handed 310
Helix 29
29
H
55 93Right-handed alpha
Helix 30
30
H
114 142Right-handed alpha
Helix 31
31
H
143 147Right-handed 310
Helix 32
32
H
150 177Right-handed alpha
Helix 33
33
H
181 197Right-handed alpha
Helix 34
34
H
207 230Right-handed alpha
Helix 35
35
H
250 268Right-handed alpha
Helix 36
36
H
271 275Right-handed 310
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There are 6 sheets in PDB entry 2A1D. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
B
30 35first strand
Strand 2
B
39 46anti-parallel
Strand 3
B
51 54anti-parallel
Strand 4
B
104 108anti-parallel
Strand 5
B
81 90anti-parallel
Strand 6
B
64 68anti-parallel
Strand 7
B
30 35anti-parallel
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There are 2 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
60 60first strand
Strand 2
B
60 60anti-parallel
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There are 6 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
156 158first strand
Strand 2
B
137 140anti-parallel
Strand 3
B
198 203anti-parallel
Strand 4
B
206 215anti-parallel
Strand 5
B
226 230anti-parallel
Strand 6
B
180 183anti-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
F
30 35first strand
Strand 2
F
39 46anti-parallel
Strand 3
F
51 54anti-parallel
Strand 4
F
104 108anti-parallel
Strand 5
F
81 90anti-parallel
Strand 6
F
64 68anti-parallel
Strand 7
F
30 35anti-parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
60 60first strand
Strand 2
F
60 60anti-parallel
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There are 6 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
156 158first strand
Strand 2
F
137 140anti-parallel
Strand 3
F
198 203anti-parallel
Strand 4
F
206 215anti-parallel
Strand 5
F
226 230anti-parallel
Strand 6
F
180 183anti-parallel
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