Analysis of interatomic Contacts of Structural Units in PDB entry:
1QX4


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 1QX4 entry

There are 2 chains in PDB entry 1QX4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS 31PHE 300
B
 HIS 31PHE 300
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 1QX4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
124 132Right-handed alpha
Helix 2
2
A
182 196Right-handed alpha
Helix 3
3
A
213 215Right-handed 310
Helix 4
4
A
217 228Right-handed alpha
Helix 5
5
A
253 261Right-handed alpha
Helix 6
6
A
275 282Right-handed alpha
Helix 7
7
A
283 291Right-handed alpha
Helix 8
8
A
293 295Right-handed 310
Helix 9
9
B
124 132Right-handed alpha
Helix 10
10
B
182 196Right-handed alpha
Helix 11
11
B
213 215Right-handed 310
Helix 12
12
B
217 228Right-handed alpha
Helix 13
13
B
253 261Right-handed alpha
Helix 14
14
B
275 282Right-handed alpha
Helix 15
15
B
283 291Right-handed alpha
Helix 16
16
B
293 295Right-handed 310
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There are 8 sheets in PDB entry 1QX4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

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
A
32 33first strand
Strand 2
A
68 69parallel
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There are 6 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
87 93first strand
Strand 2
A
77 84anti-parallel
Strand 3
A
138 145anti-parallel
Strand 4
A
42 51anti-parallel
Strand 5
A
56 62anti-parallel
Strand 6
A
104 110anti-parallel
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There are 3 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
148 152first strand
Strand 2
A
155 158anti-parallel
Strand 3
A
167 170anti-parallel
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There are 6 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
248 249first strand
Strand 2
A
232 240parallel
Strand 3
A
202 211parallel
Strand 4
A
173 179parallel
Strand 5
A
268 273parallel
Strand 6
A
297 299parallel
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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
B
32 33first strand
Strand 2
B
68 69parallel
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There are 6 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
87 93first strand
Strand 2
B
77 84anti-parallel
Strand 3
B
138 145anti-parallel
Strand 4
B
42 51anti-parallel
Strand 5
B
56 62anti-parallel
Strand 6
B
104 110anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
148 152first strand
Strand 2
B
155 158anti-parallel
Strand 3
B
167 170anti-parallel
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There are 6 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
248 249first strand
Strand 2
B
232 240parallel
Strand 3
B
202 211parallel
Strand 4
B
173 179parallel
Strand 5
B
268 273parallel
Strand 6
B
297 299parallel
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