Analysis of interatomic Contacts of Structural Units in PDB entry:
1K4S


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 1K4S entry

There are 9 chains in PDB entry 1K4S (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
B
 A 1 C 8
C
 G 12 A 17
C
 T 22 T 22
D
 A 101 T 106
D
 C 111 G 115
D
 C 117 C 117
D
 T 122 T 122
A
 GLN 201ASN 722
A
 LEU 724PHE 765
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 21 helices in PDB entry 1K4S. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
204 208Right-handed 310
Helix 2
2
A
250 262Right-handed alpha
Helix 3
3
A
266 271Right-handed alpha
Helix 4
4
A
271 285Right-handed alpha
Helix 5
5
A
287 294Right-handed alpha
Helix 6
6
A
302 317Right-handed alpha
Helix 7
7
A
320 339Right-handed alpha
Helix 8
8
A
378 381Right-handed 310
Helix 9
9
A
433 451Right-handed alpha
Helix 10
10
A
454 465Right-handed alpha
Helix 11
11
A
469 486Right-handed alpha
Helix 12
12
A
508 510Right-handed 310
Helix 13
13
A
531 535Right-handed 310
Helix 14
14
A
544 556Right-handed alpha
Helix 15
15
A
569 581Right-handed alpha
Helix 16
16
A
585 605Right-handed alpha
Helix 17
17
A
611 631Right-handed alpha
Helix 18
18
A
718 723Right-handed alpha
Helix 19
19
A
725 737Right-handed alpha
Helix 20
20
A
739 743Right-handed 310
Helix 21
21
A
745 752Right-handed alpha
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There are 3 sheets in PDB entry 1K4S. Click on sheet of interest to get list of strands forming it: A, B, C,

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
220 221first strand
Strand 2
A
342 343anti-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
403 405first strand
Strand 2
A
383 385parallel
Strand 3
A
414 417anti-parallel
Strand 4
A
424 427anti-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
512 518first strand
Strand 2
A
521 527anti-parallel
Strand 3
A
539 542anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il