Analysis of interatomic Contacts of Structural Units in PDB entry:
3QAI


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 3QAI entry

There are 2 chains in PDB entry 3QAI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 3VAL 298
B
 GLY -2VAL 298
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 26 helices in PDB entry 3QAI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
41 53Right-handed alpha
Helix 2
2
A
66 79Right-handed alpha
Helix 3
3
A
121 126Right-handed alpha
Helix 4
4
A
127 128Right-handed 310
Helix 5
5
A
129 131Right-handed 310
Helix 6
6
A
142 159Right-handed alpha
Helix 7
7
A
176 185Right-handed 310
Helix 8
8
A
192 199Right-handed alpha
Helix 9
9
A
203 212Right-handed alpha
Helix 10
10
A
213 215Right-handed 310
Helix 11
11
A
226 228Right-handed 310
Helix 12
12
A
255 270Right-handed alpha
Helix 13
13
A
273 289Right-handed alpha
Helix 14
14
B
41 53Right-handed alpha
Helix 15
15
B
66 79Right-handed alpha
Helix 16
16
B
121 127Right-handed alpha
Helix 17
17
B
128 131Right-handed 310
Helix 18
18
B
142 159Right-handed alpha
Helix 19
19
B
160 165Right-handed 310
Helix 20
20
B
176 185Right-handed 310
Helix 21
21
B
192 199Right-handed alpha
Helix 22
22
B
203 212Right-handed alpha
Helix 23
23
B
213 215Right-handed 310
Helix 24
24
B
226 228Right-handed 310
Helix 25
25
B
255 270Right-handed alpha
Helix 26
26
B
273 290Right-handed alpha
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There are 6 sheets in PDB entry 3QAI. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 8 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
57 60first strand
Strand 2
A
5 9parallel
Strand 3
A
133 139parallel
Strand 4
A
167 172parallel
Strand 5
A
188 191parallel
Strand 6
A
220 224parallel
Strand 7
A
230 233anti-parallel
Strand 8
A
239 242anti-parallel
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There are 5 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
34 40first strand
Strand 2
A
13 20anti-parallel
Strand 3
A
96 102parallel
Strand 4
A
108 113anti-parallel
Strand 5
B
29 31parallel
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There are 5 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
29 31first strand
Strand 2
B
108 112parallel
Strand 3
B
96 102anti-parallel
Strand 4
B
13 20parallel
Strand 5
B
34 40anti-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
62 63first strand
Strand 2
A
87 88parallel
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There are 8 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
57 60first strand
Strand 2
B
5 9parallel
Strand 3
B
133 139parallel
Strand 4
B
167 172parallel
Strand 5
B
188 191parallel
Strand 6
B
220 224parallel
Strand 7
B
230 233anti-parallel
Strand 8
B
239 242anti-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
62 63first strand
Strand 2
B
87 88parallel
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