Analysis of interatomic Contacts of Structural Units in PDB entry:
2QA1


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 2QA1 entry

There is 1 chain in PDB entry 2QA1 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS -1GLY 491
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 2QA1. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
11 24Right-handed alpha
Helix 2
2
A
47 56Right-handed alpha
Helix 3
3
A
57 58Right-handed 310
Helix 4
4
A
59 64Right-handed 310
Helix 5
5
A
82 84Right-handed 310
Helix 6
6
A
86 90Right-handed 310
Helix 7
7
A
96 110Right-handed alpha
Helix 8
8
A
156 162Right-handed alpha
Helix 9
9
A
228 241Right-handed alpha
Helix 10
10
A
274 276Right-handed 310
Helix 11
11
A
286 307Right-handed alpha
Helix 12
12
A
311 342Right-handed alpha
Helix 13
13
A
343 345Right-handed 310
Helix 14
14
A
346 358Right-handed alpha
Helix 15
15
A
359 372Right-handed alpha
Helix 16
16
A
405 409Right-handed alpha
Helix 17
17
A
422 430Right-handed alpha
Helix 18
18
A
431 433Right-handed 310
Helix 19
19
A
476 486Right-handed alpha
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There are 8 sheets in PDB entry 2QA1. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 6 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
113 116first strand
Strand 2
A
28 32parallel
Strand 3
A
5 8parallel
Strand 4
A
147 150parallel
Strand 5
A
270 272parallel
Strand 6
A
266 267anti-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
44 46first strand
Strand 2
A
91 95anti-parallel
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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
A
71 74first strand
Strand 2
A
77 80anti-parallel
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There are 3 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
119 126first strand
Strand 2
A
129 136anti-parallel
Strand 3
A
139 145anti-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
A
168 169first strand
Strand 2
A
259 261anti-parallel
Strand 3
A
278 279anti-parallel
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There are 5 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
188 194first strand
Strand 2
A
197 204anti-parallel
Strand 3
A
208 215anti-parallel
Strand 4
A
174 181anti-parallel
Strand 5
A
248 256anti-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
A
402 404first strand
Strand 2
A
395 397anti-parallel
Strand 3
A
442 443anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
436 440first strand
Strand 2
A
414 418parallel
Strand 3
A
457 460anti-parallel
Strand 4
A
466 470anti-parallel
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