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


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 1IAK entry

There are 3 chains in PDB entry 1IAK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ILE 1GLU 181
B
 GLY 5ALA 190
P
 SER 50TRP 62
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 7 helices in PDB entry 1IAK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
46 50Right-handed 310
Helix 2
2
A
56 77Right-handed alpha
Helix 3
3
B
20 22Right-handed 310
Helix 4
4
B
52 64Right-handed 310
Helix 5
5
B
68 77Right-handed alpha
Helix 6
6
B
79 84Right-handed alpha
Helix 7
7
B
90 92Right-handed 310
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There are 6 sheets in PDB entry 1IAK. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 4 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
40 43first strand
Strand 2
A
29 35anti-parallel
Strand 3
A
19 26anti-parallel
Strand 4
A
7 14anti-parallel
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There are 4 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
88 93first strand
Strand 2
A
102 110anti-parallel
Strand 3
A
147 154anti-parallel
Strand 4
A
132 134anti-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
118 123first strand
Strand 2
A
160 166anti-parallel
Strand 3
A
174 179anti-parallel
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There are 4 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
9 18first strand
Strand 2
B
23 32anti-parallel
Strand 3
B
35 41anti-parallel
Strand 4
B
47 49anti-parallel
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There are 4 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
98 103first strand
Strand 2
B
112 122anti-parallel
Strand 3
B
155 164anti-parallel
Strand 4
B
142 144anti-parallel
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There are 4 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
136 138first strand
Strand 2
B
128 133anti-parallel
Strand 3
B
170 176anti-parallel
Strand 4
B
184 189anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il