Analysis of interatomic Contacts of Structural Units in PDB entry:
2X18


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 2X18 entry

There are 8 chains in PDB entry 2X18 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 VAL 4GLU 114
B
 VAL 4MET 117
C
 VAL 4ASN 118
D
 VAL 4ASN 118
E
 ASP 3ASN 118
F
 ASP 3GLU 113
G
 VAL 4ASN 118
H
 ASP 3ASN 118
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 16 helices in PDB entry 2X18. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
43 47Right-handed 310
Helix 2
2
A
91 114Right-handed alpha
Helix 3
3
B
43 47Right-handed 310
Helix 4
4
B
91 117Right-handed alpha
Helix 5
5
C
43 47Right-handed 310
Helix 6
6
C
91 118Right-handed alpha
Helix 7
7
D
41 45Right-handed 310
Helix 8
8
D
91 117Right-handed alpha
Helix 9
9
E
43 47Right-handed 310
Helix 10
10
E
91 114Right-handed alpha
Helix 11
11
F
41 45Right-handed 310
Helix 12
12
F
91 111Right-handed alpha
Helix 13
13
G
41 45Right-handed 310
Helix 14
14
G
91 118Right-handed alpha
Helix 15
15
H
41 45Right-handed 310
Helix 16
16
H
91 116Right-handed alpha
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There are 8 sheets in PDB entry 2X18. Click on sheet of interest to get list of strands forming it: AA, BA, CA, A, EA, FA, GA, HA,

There are 7 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
52 55first strand
Strand 2
A
34 38anti-parallel
Strand 3
A
22 30anti-parallel
Strand 4
A
6 15anti-parallel
Strand 5
A
84 88anti-parallel
Strand 6
A
71 75anti-parallel
Strand 7
A
60 64anti-parallel
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There are 7 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
52 55first strand
Strand 2
B
34 38anti-parallel
Strand 3
B
22 30anti-parallel
Strand 4
B
6 15anti-parallel
Strand 5
B
81 88anti-parallel
Strand 6
B
71 78anti-parallel
Strand 7
B
60 64anti-parallel
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There are 7 strands in CA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
52 55first strand
Strand 2
C
34 38anti-parallel
Strand 3
C
22 30anti-parallel
Strand 4
C
6 15anti-parallel
Strand 5
C
81 88anti-parallel
Strand 6
C
71 78anti-parallel
Strand 7
C
60 64anti-parallel
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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
D
52 55first strand
Strand 2
D
34 38anti-parallel
Strand 3
D
22 30anti-parallel
Strand 4
D
6 15anti-parallel
Strand 5
D
81 88anti-parallel
Strand 6
D
71 78anti-parallel
Strand 7
D
60 64anti-parallel
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There are 7 strands in EA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
52 55first strand
Strand 2
E
34 38anti-parallel
Strand 3
E
22 30anti-parallel
Strand 4
E
6 15anti-parallel
Strand 5
E
84 88anti-parallel
Strand 6
E
71 75anti-parallel
Strand 7
E
60 64anti-parallel
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There are 7 strands in FA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
52 55first strand
Strand 2
F
34 38anti-parallel
Strand 3
F
22 30anti-parallel
Strand 4
F
6 15anti-parallel
Strand 5
F
84 88anti-parallel
Strand 6
F
71 75anti-parallel
Strand 7
F
60 64anti-parallel
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There are 7 strands in GA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
52 55first strand
Strand 2
G
34 38anti-parallel
Strand 3
G
22 30anti-parallel
Strand 4
G
6 15anti-parallel
Strand 5
G
81 88anti-parallel
Strand 6
G
71 78anti-parallel
Strand 7
G
60 64anti-parallel
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There are 7 strands in HA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
52 55first strand
Strand 2
H
34 38anti-parallel
Strand 3
H
22 30anti-parallel
Strand 4
H
6 15anti-parallel
Strand 5
H
84 88anti-parallel
Strand 6
H
71 75anti-parallel
Strand 7
H
60 64anti-parallel
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