Analysis of interatomic Contacts of Structural Units in PDB entry:
4K2X


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 4K2X entry

There are 2 chains in PDB entry 4K2X (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1ALA 502
B
 MET 1ALA 502
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 32 helices in PDB entry 4K2X. 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 57Right-handed alpha
Helix 3
3
A
59 65Right-handed alpha
Helix 4
4
A
98 113Right-handed alpha
Helix 5
5
A
159 166Right-handed alpha
Helix 6
6
A
241 254Right-handed alpha
Helix 7
7
A
287 289Right-handed 310
Helix 8
8
A
299 320Right-handed alpha
Helix 9
9
A
329 353Right-handed alpha
Helix 10
10
A
356 358Right-handed 310
Helix 11
11
A
359 371Right-handed alpha
Helix 12
12
A
372 385Right-handed alpha
Helix 13
13
A
418 421Right-handed 310
Helix 14
14
A
435 442Right-handed alpha
Helix 15
15
A
443 445Right-handed 310
Helix 16
16
A
489 499Right-handed alpha
Helix 17
17
B
11 24Right-handed alpha
Helix 18
18
B
47 57Right-handed alpha
Helix 19
19
B
59 65Right-handed alpha
Helix 20
20
B
98 113Right-handed alpha
Helix 21
21
B
159 166Right-handed alpha
Helix 22
22
B
241 254Right-handed alpha
Helix 23
23
B
287 289Right-handed 310
Helix 24
24
B
299 320Right-handed alpha
Helix 25
25
B
329 353Right-handed alpha
Helix 26
26
B
356 358Right-handed 310
Helix 27
27
B
359 371Right-handed alpha
Helix 28
28
B
372 385Right-handed alpha
Helix 29
29
B
418 421Right-handed 310
Helix 30
30
B
435 442Right-handed alpha
Helix 31
31
B
443 445Right-handed 310
Helix 32
32
B
489 499Right-handed alpha
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There are 16 sheets in PDB entry 4K2X. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P,

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
116 119first strand
Strand 2
A
28 32parallel
Strand 3
A
5 8parallel
Strand 4
A
150 153parallel
Strand 5
A
283 285parallel
Strand 6
A
279 280anti-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
69 70first strand
Strand 2
A
94 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
72 73first strand
Strand 2
A
82 83anti-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
122 128first strand
Strand 2
A
133 139anti-parallel
Strand 3
A
142 148anti-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
171 172first strand
Strand 2
A
272 274anti-parallel
Strand 3
A
291 292anti-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
201 205first strand
Strand 2
A
210 218anti-parallel
Strand 3
A
221 229anti-parallel
Strand 4
A
176 185anti-parallel
Strand 5
A
259 269anti-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
413 416first strand
Strand 2
A
407 410anti-parallel
Strand 3
A
455 456anti-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
448 453first strand
Strand 2
A
426 431parallel
Strand 3
A
468 471anti-parallel
Strand 4
A
477 481anti-parallel
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There are 6 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
116 119first strand
Strand 2
B
28 32parallel
Strand 3
B
5 8parallel
Strand 4
B
150 153parallel
Strand 5
B
283 285parallel
Strand 6
B
279 280anti-parallel
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There are 2 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
69 70first strand
Strand 2
B
94 95anti-parallel
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There are 2 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
72 73first strand
Strand 2
B
82 83anti-parallel
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There are 3 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
122 128first strand
Strand 2
B
133 139anti-parallel
Strand 3
B
142 148anti-parallel
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There are 3 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
171 172first strand
Strand 2
B
272 274anti-parallel
Strand 3
B
291 292anti-parallel
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There are 5 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
201 205first strand
Strand 2
B
210 218anti-parallel
Strand 3
B
221 229anti-parallel
Strand 4
B
176 185anti-parallel
Strand 5
B
259 269anti-parallel
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There are 3 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
414 416first strand
Strand 2
B
407 409anti-parallel
Strand 3
B
455 456anti-parallel
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There are 4 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
448 453first strand
Strand 2
B
426 431parallel
Strand 3
B
468 471anti-parallel
Strand 4
B
477 481anti-parallel
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