Analysis of interatomic Contacts of Structural Units in PDB entry:
2IA4


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 2IA4 entry

There are 2 chains in PDB entry 2IA4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 3ASN 279
B
 ALA 2ASN 279
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 24 helices in PDB entry 2IA4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 17Right-handed alpha
Helix 2
2
A
41 58Right-handed alpha
Helix 3
3
A
74 81Right-handed alpha
Helix 4
4
A
96 100Right-handed 310
Helix 5
5
A
124 129Right-handed 310
Helix 6
6
A
139 152Right-handed alpha
Helix 7
7
A
163 173Right-handed alpha
Helix 8
8
A
183 191Right-handed alpha
Helix 9
9
A
195 197Right-handed 310
Helix 10
10
A
219 236Right-handed alpha
Helix 11
11
A
237 248Right-handed alpha
Helix 12
12
A
263 272Right-handed alpha
Helix 13
13
B
8 17Right-handed alpha
Helix 14
14
B
41 58Right-handed alpha
Helix 15
15
B
74 81Right-handed alpha
Helix 16
16
B
96 100Right-handed 310
Helix 17
17
B
124 129Right-handed 310
Helix 18
18
B
139 152Right-handed alpha
Helix 19
19
B
163 173Right-handed alpha
Helix 20
20
B
183 191Right-handed alpha
Helix 21
21
B
195 197Right-handed 310
Helix 22
22
B
219 236Right-handed alpha
Helix 23
23
B
237 248Right-handed alpha
Helix 24
24
B
263 272Right-handed alpha
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There are 6 sheets in PDB entry 2IA4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
64 69first strand
Strand 2
A
18 23parallel
Strand 3
A
86 87parallel
Strand 4
A
208 215anti-parallel
Strand 5
A
102 117anti-parallel
Strand 6
A
178 182anti-parallel
Strand 7
A
132 136parallel
Strand 8
A
157 161parallel
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There are 6 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
64 69first strand
Strand 2
A
18 23parallel
Strand 3
A
86 87parallel
Strand 4
A
208 215anti-parallel
Strand 5
A
102 117anti-parallel
Strand 6
A
199 202anti-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
26 27first strand
Strand 2
A
31 33anti-parallel
Strand 3
A
39 40anti-parallel
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There are 8 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
64 69first strand
Strand 2
B
18 23parallel
Strand 3
B
86 87parallel
Strand 4
B
208 215anti-parallel
Strand 5
B
102 117anti-parallel
Strand 6
B
178 182anti-parallel
Strand 7
B
132 136parallel
Strand 8
B
157 161parallel
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There are 6 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
64 69first strand
Strand 2
B
18 23parallel
Strand 3
B
86 87parallel
Strand 4
B
208 215anti-parallel
Strand 5
B
102 117anti-parallel
Strand 6
B
199 202anti-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
26 27first strand
Strand 2
B
31 33anti-parallel
Strand 3
B
39 40anti-parallel
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