Analysis of interatomic Contacts of Structural Units in PDB entry:
1AK4


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 1AK4 entry

There are 4 chains in PDB entry 1AK4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1GLU 165
B
 ASN 3GLU 165
C
 PRO 401TYR 545
D
 PRO 401TYR 545
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 20 helices in PDB entry 1AK4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
30 41Right-handed alpha
Helix 2
2
A
120 122Right-handed 310
Helix 3
3
A
136 145Right-handed alpha
Helix 4
4
B
30 41Right-handed alpha
Helix 5
5
B
120 122Right-handed 310
Helix 6
6
B
136 145Right-handed alpha
Helix 7
7
C
417 429Right-handed alpha
Helix 8
8
C
434 443Right-handed 310
Helix 9
9
C
449 457Right-handed alpha
Helix 10
10
C
463 482Right-handed alpha
Helix 11
11
C
501 504Right-handed alpha
Helix 12
12
C
511 519Right-handed alpha
Helix 13
13
C
526 543Right-handed alpha
Helix 14
14
D
417 429Right-handed alpha
Helix 15
15
D
434 443Right-handed alpha
Helix 16
16
D
449 457Right-handed alpha
Helix 17
17
D
463 482Right-handed alpha
Helix 18
18
D
501 504Right-handed alpha
Helix 19
19
D
511 518Right-handed alpha
Helix 20
20
D
526 543Right-handed alpha
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There are 5 sheets in PDB entry 1AK4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

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
156 163first strand
Strand 2
A
5 12anti-parallel
Strand 3
A
15 24anti-parallel
Strand 4
A
128 134anti-parallel
Strand 5
A
97 100anti-parallel
Strand 6
A
112 115anti-parallel
Strand 7
A
61 64anti-parallel
Strand 8
A
53 57anti-parallel
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There are 8 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
156 158first strand
Strand 2
B
5 12anti-parallel
Strand 3
B
15 24anti-parallel
Strand 4
B
128 134anti-parallel
Strand 5
B
97 100anti-parallel
Strand 6
B
112 115anti-parallel
Strand 7
B
61 64anti-parallel
Strand 8
B
53 57anti-parallel
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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
5 9first strand
Strand 2
B
160 165anti-parallel
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There are 2 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
402 404first strand
Strand 2
C
410 412anti-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
D
402 404first strand
Strand 2
D
410 412anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il