Analysis of interatomic Contacts of Structural Units in PDB entry:
3A2K


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 3A2K entry

There are 4 chains in PDB entry 3A2K (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1MET 462
B
 MET 1MET 462
C
 G 1 A 77
D
 G 1 U 43
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 33 helices in PDB entry 3A2K. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
3 12Right-handed alpha
Helix 2
2
A
28 44Right-handed alpha
Helix 3
3
A
60 77Right-handed alpha
Helix 4
4
A
88 93Right-handed alpha
Helix 5
5
A
99 117Right-handed alpha
Helix 6
6
A
128 143Right-handed alpha
Helix 7
7
A
166 170Right-handed 310
Helix 8
8
A
171 182Right-handed alpha
Helix 9
9
A
197 205Right-handed alpha
Helix 10
10
A
205 214Right-handed alpha
Helix 11
11
A
216 245Right-handed alpha
Helix 12
12
A
257 264Right-handed alpha
Helix 13
13
A
265 280Right-handed alpha
Helix 14
14
A
288 302Right-handed alpha
Helix 15
15
A
406 413Right-handed alpha
Helix 16
16
A
416 423Right-handed alpha
Helix 17
17
B
3 12Right-handed alpha
Helix 18
18
B
28 44Right-handed alpha
Helix 19
19
B
60 77Right-handed alpha
Helix 20
20
B
88 93Right-handed alpha
Helix 21
21
B
99 117Right-handed alpha
Helix 22
22
B
128 143Right-handed alpha
Helix 23
23
B
166 170Right-handed 310
Helix 24
24
B
171 182Right-handed alpha
Helix 25
25
B
197 205Right-handed alpha
Helix 26
26
B
205 214Right-handed alpha
Helix 27
27
B
216 221Right-handed alpha
Helix 28
28
B
221 245Right-handed alpha
Helix 29
29
B
257 264Right-handed alpha
Helix 30
30
B
265 280Right-handed alpha
Helix 31
31
B
288 302Right-handed alpha
Helix 32
32
B
406 413Right-handed alpha
Helix 33
33
B
416 423Right-handed alpha
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There are 12 sheets in PDB entry 3A2K. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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
80 85first strand
Strand 2
A
50 55parallel
Strand 3
A
21 24parallel
Strand 4
A
122 124parallel
Strand 5
A
162 164parallel
Strand 6
A
155 157anti-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
247 248first strand
Strand 2
A
255 256anti-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
306 310first strand
Strand 2
A
316 320anti-parallel
Strand 3
A
323 327anti-parallel
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There are 5 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
338 341first strand
Strand 2
A
384 388anti-parallel
Strand 3
A
424 428anti-parallel
Strand 4
A
433 436anti-parallel
Strand 5
A
440 441anti-parallel
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There are 4 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
345 349first strand
Strand 2
A
353 360anti-parallel
Strand 3
A
454 460anti-parallel
Strand 4
A
372 375anti-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
A
394 396first strand
Strand 2
A
403 405anti-parallel
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There are 6 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
80 85first strand
Strand 2
B
50 55parallel
Strand 3
B
21 24parallel
Strand 4
B
122 124parallel
Strand 5
B
162 164parallel
Strand 6
B
155 157anti-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
247 248first strand
Strand 2
B
255 256anti-parallel
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There are 3 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
306 310first strand
Strand 2
B
316 320anti-parallel
Strand 3
B
323 327anti-parallel
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There are 5 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
338 341first strand
Strand 2
B
384 388anti-parallel
Strand 3
B
424 428anti-parallel
Strand 4
B
433 436anti-parallel
Strand 5
B
440 441anti-parallel
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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
345 349first strand
Strand 2
B
353 360anti-parallel
Strand 3
B
454 460anti-parallel
Strand 4
B
372 375anti-parallel
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There are 2 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
394 396first strand
Strand 2
B
403 405anti-parallel
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