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


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 2XRQ entry

There are 5 chains in PDB entry 2XRQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
D
 ALA 1ASN 103
E
 ALA 1ASN 103
F
 ALA 1ASN 103
G
 ALA 1ASN 103
H
 ALA 1ASN 103
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 2XRQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
D
4 10Right-handed alpha
Helix 2
2
D
60 79Right-handed alpha
Helix 3
3
E
4 10Right-handed alpha
Helix 4
4
E
60 79Right-handed alpha
Helix 5
5
F
4 10Right-handed alpha
Helix 6
6
F
60 79Right-handed alpha
Helix 7
7
G
4 10Right-handed alpha
Helix 8
8
G
60 78Right-handed alpha
Helix 9
9
H
4 10Right-handed alpha
Helix 10
10
H
60 79Right-handed alpha
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There are 5 sheets in PDB entry 2XRQ. Click on sheet of interest to get list of strands forming it: A, DB, EA, EB, EC,

There are 6 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
15 22first strand
Strand 2
D
82 88anti-parallel
Strand 3
D
94 102anti-parallel
Strand 4
E
26 32parallel
Strand 5
E
35 41anti-parallel
Strand 6
E
47 50parallel
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There are 9 strands in DB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
15 22first strand
Strand 2
D
82 88anti-parallel
Strand 3
D
94 102anti-parallel
Strand 4
D
47 50parallel
Strand 5
D
35 41anti-parallel
Strand 6
D
26 32anti-parallel
Strand 7
H
95 102anti-parallel
Strand 8
H
82 88anti-parallel
Strand 9
H
15 22anti-parallel
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There are 14 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
15 22first strand
Strand 2
E
82 88anti-parallel
Strand 3
E
95 102anti-parallel
Strand 4
F
26 32anti-parallel
Strand 5
F
35 41anti-parallel
Strand 6
F
47 50anti-parallel
Strand 7
F
94 102parallel
Strand 8
G
26 32anti-parallel
Strand 9
G
35 41anti-parallel
Strand 10
G
47 50anti-parallel
Strand 11
G
94 102parallel
Strand 12
H
26 32anti-parallel
Strand 13
H
35 41anti-parallel
Strand 14
H
47 50anti-parallel
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There are 9 strands in EB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
15 22first strand
Strand 2
E
82 88anti-parallel
Strand 3
E
95 102anti-parallel
Strand 4
F
26 32anti-parallel
Strand 5
F
35 41anti-parallel
Strand 6
F
47 50anti-parallel
Strand 7
F
94 102parallel
Strand 8
F
82 88anti-parallel
Strand 9
F
15 22parallel
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There are 13 strands in EC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
15 22first strand
Strand 2
E
82 88anti-parallel
Strand 3
E
95 102anti-parallel
Strand 4
F
26 32anti-parallel
Strand 5
F
35 41anti-parallel
Strand 6
F
47 50anti-parallel
Strand 7
F
94 102parallel
Strand 8
G
26 32anti-parallel
Strand 9
G
35 41anti-parallel
Strand 10
G
47 50anti-parallel
Strand 11
G
94 102parallel
Strand 12
G
82 88anti-parallel
Strand 13
G
15 22parallel
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