Analysis of interatomic Contacts of Structural Units in PDB entry:
4K3A


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 4K3A entry

There are 2 chains in PDB entry 4K3A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 5ARG 724
B
 GLY 5ARG 724
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 59 helices in PDB entry 4K3A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
16 20Right-handed 310
Helix 2
2
A
47 52Right-handed 310
Helix 3
3
A
54 58Right-handed 310
Helix 4
4
A
121 123Right-handed 310
Helix 5
5
A
252 254Right-handed 310
Helix 6
6
A
255 262Right-handed alpha
Helix 7
7
A
302 309Right-handed alpha
Helix 8
8
A
310 314Right-handed 310
Helix 9
9
A
357 359Right-handed 310
Helix 10
10
A
360 373Right-handed alpha
Helix 11
11
A
375 381Right-handed alpha
Helix 12
12
A
384 404Right-handed alpha
Helix 13
13
A
404 409Right-handed alpha
Helix 14
14
A
412 432Right-handed alpha
Helix 15
15
A
455 459Right-handed 310
Helix 16
16
A
465 473Right-handed 310
Helix 17
17
A
475 494Right-handed alpha
Helix 18
18
A
498 515Right-handed alpha
Helix 19
19
A
554 573Right-handed alpha
Helix 20
20
A
574 596Right-handed alpha
Helix 21
21
A
606 611Right-handed alpha
Helix 22
22
A
632 639Right-handed alpha
Helix 23
23
A
640 642Right-handed 310
Helix 24
24
A
645 651Right-handed alpha
Helix 25
25
A
654 665Right-handed alpha
Helix 26
26
A
665 670Right-handed alpha
Helix 27
27
A
671 673Right-handed 310
Helix 28
28
A
676 686Right-handed alpha
Helix 29
29
A
689 698Right-handed alpha
Helix 30
30
A
707 717Right-handed alpha
Helix 31
31
B
16 20Right-handed 310
Helix 32
32
B
47 52Right-handed 310
Helix 33
33
B
54 58Right-handed 310
Helix 34
34
B
121 123Right-handed 310
Helix 35
35
B
252 254Right-handed 310
Helix 36
36
B
255 262Right-handed alpha
Helix 37
37
B
302 309Right-handed alpha
Helix 38
38
B
357 359Right-handed 310
Helix 39
39
B
360 373Right-handed alpha
Helix 40
40
B
375 381Right-handed alpha
Helix 41
41
B
384 404Right-handed alpha
Helix 42
42
B
404 409Right-handed alpha
Helix 43
43
B
412 432Right-handed alpha
Helix 44
44
B
455 459Right-handed 310
Helix 45
45
B
465 473Right-handed 310
Helix 46
46
B
475 494Right-handed alpha
Helix 47
47
B
498 515Right-handed alpha
Helix 48
48
B
554 573Right-handed alpha
Helix 49
49
B
574 596Right-handed alpha
Helix 50
50
B
606 611Right-handed alpha
Helix 51
51
B
632 639Right-handed alpha
Helix 52
52
B
640 642Right-handed 310
Helix 53
53
B
645 651Right-handed alpha
Helix 54
54
B
654 665Right-handed alpha
Helix 55
55
B
665 670Right-handed alpha
Helix 56
56
B
671 673Right-handed 310
Helix 57
57
B
675 686Right-handed alpha
Helix 58
58
B
689 698Right-handed alpha
Helix 59
59
B
707 717Right-handed alpha
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There are 14 sheets in PDB entry 4K3A. 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,

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
23 24first strand
Strand 2
A
439 442parallel
Strand 3
A
447 450anti-parallel
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There are 7 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
67 70first strand
Strand 2
A
80 83anti-parallel
Strand 3
A
115 119anti-parallel
Strand 4
A
173 176anti-parallel
Strand 5
A
234 237anti-parallel
Strand 6
A
225 231anti-parallel
Strand 7
A
197 200anti-parallel
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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
89 91first strand
Strand 2
A
106 108anti-parallel
Strand 3
A
622 624anti-parallel
Strand 4
A
617 619anti-parallel
Strand 5
A
551 552anti-parallel
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There are 8 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
128 135first strand
Strand 2
A
138 145anti-parallel
Strand 3
A
148 158anti-parallel
Strand 4
A
164 171anti-parallel
Strand 5
A
241 249anti-parallel
Strand 6
A
214 219anti-parallel
Strand 7
A
202 207anti-parallel
Strand 8
A
181 186anti-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
267 276first strand
Strand 2
A
282 290anti-parallel
Strand 3
A
336 341anti-parallel
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There are 3 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
298 301first strand
Strand 2
A
328 333anti-parallel
Strand 3
A
315 322anti-parallel
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There are 2 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
529 530first strand
Strand 2
A
535 536anti-parallel
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There are 3 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
23 24first strand
Strand 2
B
439 442parallel
Strand 3
B
447 450anti-parallel
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There are 7 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
67 70first strand
Strand 2
B
80 83anti-parallel
Strand 3
B
115 119anti-parallel
Strand 4
B
173 176anti-parallel
Strand 5
B
234 237anti-parallel
Strand 6
B
225 231anti-parallel
Strand 7
B
197 200anti-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
89 91first strand
Strand 2
B
106 108anti-parallel
Strand 3
B
622 624anti-parallel
Strand 4
B
617 619anti-parallel
Strand 5
B
551 552anti-parallel
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There are 8 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
128 135first strand
Strand 2
B
138 145anti-parallel
Strand 3
B
148 158anti-parallel
Strand 4
B
164 171anti-parallel
Strand 5
B
241 249anti-parallel
Strand 6
B
214 219anti-parallel
Strand 7
B
202 207anti-parallel
Strand 8
B
181 186anti-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
267 276first strand
Strand 2
B
282 290anti-parallel
Strand 3
B
336 341anti-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
298 301first strand
Strand 2
B
328 333anti-parallel
Strand 3
B
315 322anti-parallel
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There are 2 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
529 530first strand
Strand 2
B
535 536anti-parallel
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