Analysis of interatomic Contacts of Structural Units in PDB entry:
3SUM


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 3SUM entry

There are 4 chains in PDB entry 3SUM (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASN 22PRO 156
B
 SER 21PRO 156
C
 SER 21PRO 156
D
 ASN 22GLY 154
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 27 helices in PDB entry 3SUM. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
29 33Right-handed 310
Helix 2
2
A
37 41Right-handed 310
Helix 3
3
A
43 49Right-handed alpha
Helix 4
4
A
60 64Right-handed 310
Helix 5
5
A
110 118Right-handed alpha
Helix 6
6
A
124 130Right-handed alpha
Helix 7
7
A
141 146Right-handed 310
Helix 8
8
B
29 33Right-handed 310
Helix 9
9
B
37 41Right-handed 310
Helix 10
10
B
43 48Right-handed alpha
Helix 11
11
B
60 64Right-handed 310
Helix 12
12
B
110 118Right-handed alpha
Helix 13
13
B
125 130Right-handed alpha
Helix 14
14
B
141 146Right-handed 310
Helix 15
15
C
29 33Right-handed 310
Helix 16
16
C
37 41Right-handed 310
Helix 17
17
C
43 48Right-handed alpha
Helix 18
18
C
60 64Right-handed 310
Helix 19
19
C
111 118Right-handed alpha
Helix 20
20
C
125 130Right-handed alpha
Helix 21
21
C
141 146Right-handed 310
Helix 22
22
D
29 33Right-handed 310
Helix 23
23
D
37 41Right-handed 310
Helix 24
24
D
43 48Right-handed alpha
Helix 25
25
D
60 64Right-handed 310
Helix 26
26
D
110 118Right-handed alpha
Helix 27
27
D
141 146Right-handed 310
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There are 7 sheets in PDB entry 3SUM. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

There are 7 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
131 133first strand
Strand 2
A
24 27anti-parallel
Strand 3
A
106 109parallel
Strand 4
A
70 72anti-parallel
Strand 5
A
91 99parallel
Strand 6
A
83 88anti-parallel
Strand 7
A
136 140anti-parallel
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There are 7 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
132 133first strand
Strand 2
B
24 27anti-parallel
Strand 3
B
106 109parallel
Strand 4
B
70 74anti-parallel
Strand 5
B
91 101parallel
Strand 6
B
83 88anti-parallel
Strand 7
B
136 140anti-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
119 120first strand
Strand 2
B
123 124anti-parallel
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There are 7 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
131 133first strand
Strand 2
C
24 28anti-parallel
Strand 3
C
106 110parallel
Strand 4
C
70 72anti-parallel
Strand 5
C
91 99parallel
Strand 6
C
83 88anti-parallel
Strand 7
C
136 140anti-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
119 120first strand
Strand 2
C
123 124anti-parallel
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There are 7 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
131 133first strand
Strand 2
D
24 27anti-parallel
Strand 3
D
106 109parallel
Strand 4
D
70 72anti-parallel
Strand 5
D
91 99parallel
Strand 6
D
83 88anti-parallel
Strand 7
D
136 140anti-parallel
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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
D
119 120first strand
Strand 2
D
123 124anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il