Analysis of interatomic Contacts of Structural Units in PDB entry:
1A2Y


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 1A2Y entry

There are 3 chains in PDB entry 1A2Y (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 1LYS 107
B
 GLN 1SER 116
C
 LYS 1LEU 129
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 10 helices in PDB entry 1A2Y. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
80 82Right-handed 310
Helix 2
2
B
64 66Right-handed 310
Helix 3
3
B
87 89Right-handed 310
Helix 4
4
C
5 14Right-handed alpha
Helix 5
5
C
20 22Right-handed 310
Helix 6
6
C
25 36Right-handed alpha
Helix 7
7
C
89 98Right-handed alpha
Helix 8
8
C
104 107Right-handed 310
Helix 9
9
C
109 114Right-handed alpha
Helix 10
10
C
120 123Right-handed 310
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There are 6 sheets in PDB entry 1A2Y. 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
4 7first strand
Strand 2
A
19 25anti-parallel
Strand 3
A
70 75anti-parallel
Strand 4
A
62 67anti-parallel
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There are 5 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
10 13first strand
Strand 2
A
102 106parallel
Strand 3
A
84 90anti-parallel
Strand 4
A
33 38anti-parallel
Strand 5
A
45 48anti-parallel
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There are 4 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
3 7first strand
Strand 2
B
18 25anti-parallel
Strand 3
B
77 82anti-parallel
Strand 4
B
67 72anti-parallel
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There are 5 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
110 112first strand
Strand 2
B
91 98anti-parallel
Strand 3
B
33 39anti-parallel
Strand 4
B
45 51anti-parallel
Strand 5
B
57 59anti-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
C
43 45first strand
Strand 2
C
51 53anti-parallel
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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
B
96 98first strand
Strand 2
B
103 106anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il