Analysis of interatomic Contacts of Structural Units in PDB entry:
2X1Q


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 2X1Q entry

There are 2 chains in PDB entry 2X1Q (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 3SER 127
B
 GLN 3SER 127
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 8 helices in PDB entry 2X1Q. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
74 77Right-handed 310
Helix 2
2
A
87 91Right-handed 310
Helix 3
3
A
105 110Right-handed 310
Helix 4
4
A
110 114Right-handed 310
Helix 5
5
B
74 76Right-handed 310
Helix 6
6
B
87 91Right-handed 310
Helix 7
7
B
105 110Right-handed 310
Helix 8
8
B
110 114Right-handed 310
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There are 8 sheets in PDB entry 2X1Q. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, BA, BB, BC, BD,

There are 4 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
5 7first strand
Strand 2
A
18 23anti-parallel
Strand 3
A
78 83anti-parallel
Strand 4
A
68 73anti-parallel
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There are 4 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
10 12first strand
Strand 2
A
121 125parallel
Strand 3
A
92 99anti-parallel
Strand 4
A
116 117anti-parallel
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There are 6 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
10 12first strand
Strand 2
A
121 125parallel
Strand 3
A
92 99anti-parallel
Strand 4
A
33 39anti-parallel
Strand 5
A
46 51anti-parallel
Strand 6
A
58 60anti-parallel
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There are 2 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
116 117first strand
Strand 2
A
92 99anti-parallel
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There are 4 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
5 7first strand
Strand 2
B
18 23anti-parallel
Strand 3
B
78 83anti-parallel
Strand 4
B
68 73anti-parallel
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There are 4 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
10 12first strand
Strand 2
B
121 125parallel
Strand 3
B
92 99anti-parallel
Strand 4
B
116 117anti-parallel
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There are 6 strands in BC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
10 12first strand
Strand 2
B
121 125parallel
Strand 3
B
92 99anti-parallel
Strand 4
B
33 39anti-parallel
Strand 5
B
46 51anti-parallel
Strand 6
B
58 60anti-parallel
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There are 2 strands in BD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
116 117first strand
Strand 2
B
92 99anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il