Analysis of interatomic Contacts of Structural Units in PDB entry:
1K2S


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 1K2S entry

There are 2 chains in PDB entry 1K2S (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ARG 299TRP 716
B
 ARG 299LYS 717
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 37 helices in PDB entry 1K2S. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
315 320Right-handed 310
Helix 2
2
A
350 370Right-handed alpha
Helix 3
3
A
374 392Right-handed alpha
Helix 4
4
A
397 411Right-handed alpha
Helix 5
5
A
417 421Right-handed 310
Helix 6
6
A
434 451Right-handed alpha
Helix 7
7
A
452 454Right-handed 310
Helix 8
8
A
498 508Right-handed alpha
Helix 9
9
A
537 541Right-handed 310
Helix 10
10
A
553 558Right-handed 310
Helix 11
11
A
589 595Right-handed alpha
Helix 12
12
A
595 600Right-handed alpha
Helix 13
13
A
606 613Right-handed alpha
Helix 14
14
A
620 623Right-handed 310
Helix 15
15
A
624 644Right-handed alpha
Helix 16
16
A
650 670Right-handed alpha
Helix 17
17
A
675 680Right-handed alpha
Helix 18
18
A
684 693Right-handed 310
Helix 19
19
A
709 713Right-handed 310
Helix 20
20
B
315 320Right-handed 310
Helix 21
21
B
350 369Right-handed alpha
Helix 22
22
B
374 392Right-handed alpha
Helix 23
23
B
397 411Right-handed alpha
Helix 24
24
B
417 421Right-handed 310
Helix 25
25
B
434 451Right-handed alpha
Helix 26
26
B
452 454Right-handed 310
Helix 27
27
B
498 507Right-handed alpha
Helix 28
28
B
537 541Right-handed 310
Helix 29
29
B
554 558Right-handed 310
Helix 30
30
B
589 595Right-handed alpha
Helix 31
31
B
606 615Right-handed alpha
Helix 32
32
B
620 623Right-handed 310
Helix 33
33
B
624 644Right-handed alpha
Helix 34
34
B
650 670Right-handed alpha
Helix 35
35
B
675 680Right-handed alpha
Helix 36
36
B
684 693Right-handed 310
Helix 37
37
B
709 713Right-handed 310
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There are 12 sheets in PDB entry 1K2S. 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 2 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
301 304first strand
Strand 2
A
311 314anti-parallel
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There are 4 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
425 428first strand
Strand 2
A
458 461parallel
Strand 3
A
584 585anti-parallel
Strand 4
A
566 567anti-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
473 474first strand
Strand 2
A
522 525anti-parallel
Strand 3
A
532 534anti-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
484 486first strand
Strand 2
A
492 494anti-parallel
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There are 2 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
543 545first strand
Strand 2
A
560 562anti-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
577 579first strand
Strand 2
A
571 574anti-parallel
Strand 3
A
703 705anti-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
B
301 304first strand
Strand 2
B
311 314anti-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
B
425 428first strand
Strand 2
B
458 461parallel
Strand 3
B
584 585anti-parallel
Strand 4
B
566 567anti-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
473 474first strand
Strand 2
B
522 525anti-parallel
Strand 3
B
532 534anti-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
484 486first strand
Strand 2
B
492 494anti-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
543 545first strand
Strand 2
B
560 562anti-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
577 579first strand
Strand 2
B
571 574anti-parallel
Strand 3
B
703 705anti-parallel
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