Analysis of interatomic Contacts of Structural Units in PDB entry:
3K23


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 3K23 entry

There are 6 chains in PDB entry 3K23 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LEU 525GLN 776
D
 ALA 743LYS 751
B
 GLN 527GLN 776
E
 ASN 742LYS 751
C
 LEU 525HIS 775
F
 GLU 741ASP 750
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 30 helices in PDB entry 3K23. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
531 539Right-handed alpha
Helix 2
2
A
555 579Right-handed alpha
Helix 3
3
A
588 616Right-handed alpha
Helix 4
4
A
639 657Right-handed alpha
Helix 5
5
A
659 672Right-handed alpha
Helix 6
6
A
682 705Right-handed alpha
Helix 7
7
A
708 743Right-handed alpha
Helix 8
8
A
750 767Right-handed alpha
Helix 9
9
D
743 750Right-handed alpha
Helix 10
10
B
531 540Right-handed alpha
Helix 11
11
B
555 580Right-handed alpha
Helix 12
12
B
588 617Right-handed alpha
Helix 13
13
B
630 635Right-handed alpha
Helix 14
14
B
639 656Right-handed alpha
Helix 15
15
B
659 672Right-handed alpha
Helix 16
16
B
682 703Right-handed alpha
Helix 17
17
B
710 742Right-handed alpha
Helix 18
18
B
750 765Right-handed alpha
Helix 19
19
E
742 751Right-handed alpha
Helix 20
20
C
531 539Right-handed alpha
Helix 21
21
C
556 581Right-handed alpha
Helix 22
22
C
583 587Right-handed 310
Helix 23
23
C
588 616Right-handed alpha
Helix 24
24
C
631 635Right-handed 310
Helix 25
25
C
643 656Right-handed alpha
Helix 26
26
C
659 673Right-handed alpha
Helix 27
27
C
683 704Right-handed alpha
Helix 28
28
C
709 741Right-handed alpha
Helix 29
29
C
750 759Right-handed alpha
Helix 30
30
F
742 748Right-handed alpha
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There are 6 sheets in PDB entry 3K23. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
621 624first strand
Strand 2
A
627 629anti-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
674 676first strand
Strand 2
A
769 771anti-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
B
621 624first strand
Strand 2
B
627 629anti-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
B
674 676first strand
Strand 2
B
769 771anti-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
C
621 624first strand
Strand 2
C
627 629anti-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
C
674 676first strand
Strand 2
C
769 771anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il