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


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 1SYI entry

There are 2 chains in PDB entry 1SYI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASN 0CYS 258
B
 ASN 0CYS 258
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 1SYI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
19 23Right-handed 310
Helix 2
2
A
24 27Right-handed 310
Helix 3
3
A
31 45Right-handed alpha
Helix 4
4
A
69 77Right-handed alpha
Helix 5
5
A
90 95Right-handed alpha
Helix 6
6
A
120 126Right-handed alpha
Helix 7
7
A
138 147Right-handed alpha
Helix 8
8
A
149 162Right-handed alpha
Helix 9
9
A
170 181Right-handed alpha
Helix 10
10
A
191 199Right-handed alpha
Helix 11
11
A
227 241Right-handed alpha
Helix 12
12
A
242 253Right-handed alpha
Helix 13
13
B
19 23Right-handed 310
Helix 14
14
B
24 27Right-handed 310
Helix 15
15
B
31 45Right-handed alpha
Helix 16
16
B
69 77Right-handed alpha
Helix 17
17
B
90 95Right-handed alpha
Helix 18
18
B
120 126Right-handed alpha
Helix 19
19
B
138 147Right-handed alpha
Helix 20
20
B
149 162Right-handed alpha
Helix 21
21
B
170 180Right-handed alpha
Helix 22
22
B
191 199Right-handed alpha
Helix 23
23
B
227 241Right-handed alpha
Helix 24
24
B
242 253Right-handed alpha
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There are 10 sheets in PDB entry 1SYI. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J,

There are 3 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
48 52first strand
Strand 2
A
3 7parallel
Strand 3
A
82 83parallel
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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
A
15 16first strand
Strand 2
A
29 30anti-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
A
97 99first strand
Strand 2
A
220 222anti-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
A
104 106first strand
Strand 2
A
215 217anti-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
A
131 133first strand
Strand 2
A
185 190parallel
Strand 3
A
108 113anti-parallel
Strand 4
A
205 208anti-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
48 52first strand
Strand 2
B
3 7parallel
Strand 3
B
82 83parallel
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There are 2 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
15 16first strand
Strand 2
B
29 30anti-parallel
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There are 2 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
97 99first strand
Strand 2
B
220 222anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
104 106first strand
Strand 2
B
215 217anti-parallel
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There are 4 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
131 133first strand
Strand 2
B
185 190parallel
Strand 3
B
108 113anti-parallel
Strand 4
B
205 208anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il