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


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 2XTW entry

There are 4 chains in PDB entry 2XTW (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY -2ILE 210
B
 GLY -2VAL 212
C
 ALA 4VAL 212
D
 LEU 3ILE 210
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 4 helices in PDB entry 2XTW. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
197 209Right-handed alpha
Helix 2
2
B
197 207Right-handed alpha
Helix 3
3
C
197 207Right-handed alpha
Helix 4
4
D
197 208Right-handed alpha
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There are 12 sheets in PDB entry 2XTW. Click on sheet of interest to get list of strands forming it: AA, AB, AC, BA, BB, BC, CA, CB, CC, A, DB, C,

There are 6 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
-1 1first strand
Strand 2
A
19 21parallel
Strand 3
A
39 41parallel
Strand 4
A
65 67parallel
Strand 5
A
84 87parallel
Strand 6
A
114 117parallel
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There are 2 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
4 6first strand
Strand 2
A
24 26parallel
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There are 2 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
102 103first strand
Strand 2
A
111 112anti-parallel
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There are 6 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
-1 1first strand
Strand 2
B
19 21parallel
Strand 3
B
39 41parallel
Strand 4
B
65 67parallel
Strand 5
B
84 87parallel
Strand 6
B
114 117parallel
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There are 2 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
5 6first strand
Strand 2
B
25 26parallel
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There are 2 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
102 103first strand
Strand 2
B
111 112anti-parallel
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There are 2 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
5 6first strand
Strand 2
C
25 26parallel
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There are 4 strands in CB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
39 41first strand
Strand 2
C
65 67parallel
Strand 3
C
85 87parallel
Strand 4
C
115 117parallel
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There are 2 strands in CC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
102 103first strand
Strand 2
C
111 112anti-parallel
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There are 2 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
4 6first strand
Strand 2
D
24 26parallel
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There are 5 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
19 21first strand
Strand 2
D
39 41parallel
Strand 3
D
65 67parallel
Strand 4
D
85 87parallel
Strand 5
D
115 117parallel
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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
D
102 103first strand
Strand 2
D
111 112anti-parallel
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