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


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 1QAI entry

There are 4 chains in PDB entry 1QAI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
C
 C 1 G 8
D
 C 1 G 8
A
 THR 24LYS 274
B
 THR 24LYS 274
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 19 helices in PDB entry 1QAI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
24 29Right-handed alpha
Helix 2
2
A
30 32Right-handed 310
Helix 3
3
A
33 38Right-handed alpha
Helix 4
4
A
67 84Right-handed alpha
Helix 5
5
A
115 120Right-handed alpha
Helix 6
6
A
134 139Right-handed 310
Helix 7
7
A
154 158Right-handed 310
Helix 8
8
A
164 169Right-handed 310
Helix 9
9
A
194 214Right-handed alpha
Helix 10
10
A
232 251Right-handed alpha
Helix 11
11
B
33 38Right-handed alpha
Helix 12
12
B
74 84Right-handed alpha
Helix 13
13
B
115 122Right-handed alpha
Helix 14
14
B
132 137Right-handed alpha
Helix 15
15
B
154 158Right-handed 310
Helix 16
16
B
164 169Right-handed 310
Helix 17
17
B
194 214Right-handed alpha
Helix 18
18
B
232 251Right-handed alpha
Helix 19
19
B
255 259Right-handed 310
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There are 8 sheets in PDB entry 1QAI. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 3 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
87 90first strand
Strand 2
A
180 185anti-parallel
Strand 3
A
170 173anti-parallel
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There are 2 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
98 101first strand
Strand 2
A
110 113anti-parallel
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There are 4 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
218 222first strand
Strand 2
A
225 230anti-parallel
Strand 3
A
145 150anti-parallel
Strand 4
A
260 263anti-parallel
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There are 2 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
266 268first strand
Strand 2
A
271 273anti-parallel
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There are 3 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
87 89first strand
Strand 2
B
181 185anti-parallel
Strand 3
B
170 172anti-parallel
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There are 2 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
98 101first strand
Strand 2
B
110 113anti-parallel
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There are 4 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
218 222first strand
Strand 2
B
225 229anti-parallel
Strand 3
B
146 150anti-parallel
Strand 4
B
260 263anti-parallel
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There are 2 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
266 268first strand
Strand 2
B
271 273anti-parallel
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