Analysis of interatomic Contacts of Structural Units in PDB entry:
1Q4K


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 1Q4K entry


Note, this PDB entry contains modified residue(s) PHOSPHOTHREONINE (TPO) . This residue is treated as heterogroup (ligand) both in the PDB entry and in LPC/CSU analysis.

There are 9 chains in PDB entry 1Q4K (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
B
 ASP 371ARG 594
A
 CYS 372SER 593
C
 CYS 372SER 593
D
 MET 1SER 3
D
 PRO 5LEU 6
E
 MET 1SER 3
E
 PRO 5LEU 6
F
 MET 1SER 3
F
 PRO 5LEU 6
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 20 helices in PDB entry 1Q4K. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
B
372 387Right-handed alpha
Helix 2
2
B
396 401Right-handed 310
Helix 3
3
B
402 406Right-handed 310
Helix 4
4
B
469 471Right-handed 310
Helix 5
5
B
472 490Right-handed alpha
Helix 6
6
B
564 571Right-handed alpha
Helix 7
7
B
573 593Right-handed alpha
Helix 8
8
A
372 387Right-handed alpha
Helix 9
9
A
396 401Right-handed 310
Helix 10
10
A
402 406Right-handed 310
Helix 11
11
A
469 471Right-handed 310
Helix 12
12
A
472 490Right-handed alpha
Helix 13
13
A
564 571Right-handed alpha
Helix 14
14
A
573 593Right-handed alpha
Helix 15
15
C
372 387Right-handed alpha
Helix 16
16
C
396 401Right-handed 310
Helix 17
17
C
402 406Right-handed 310
Helix 18
18
C
472 490Right-handed alpha
Helix 19
19
C
564 571Right-handed alpha
Helix 20
20
C
573 593Right-handed alpha
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There are 6 sheets in PDB entry 1Q4K. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
B
411 417first strand
Strand 2
B
422 427anti-parallel
Strand 3
B
432 436anti-parallel
Strand 4
B
441 444anti-parallel
Strand 5
B
450 454anti-parallel
Strand 6
B
460 464anti-parallel
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There are 6 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
511 516first strand
Strand 2
B
520 525anti-parallel
Strand 3
B
530 534anti-parallel
Strand 4
B
540 544anti-parallel
Strand 5
B
549 553anti-parallel
Strand 6
B
559 563anti-parallel
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There are 6 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
411 416first strand
Strand 2
A
422 427anti-parallel
Strand 3
A
432 436anti-parallel
Strand 4
A
441 444anti-parallel
Strand 5
A
450 454anti-parallel
Strand 6
A
460 464anti-parallel
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There are 6 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
511 516first strand
Strand 2
A
520 525anti-parallel
Strand 3
A
530 534anti-parallel
Strand 4
A
540 544anti-parallel
Strand 5
A
549 553anti-parallel
Strand 6
A
559 563anti-parallel
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There are 6 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
411 416first strand
Strand 2
C
422 427anti-parallel
Strand 3
C
432 436anti-parallel
Strand 4
C
441 444anti-parallel
Strand 5
C
450 454anti-parallel
Strand 6
C
461 464anti-parallel
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There are 6 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
511 516first strand
Strand 2
C
520 525anti-parallel
Strand 3
C
530 534anti-parallel
Strand 4
C
540 544anti-parallel
Strand 5
C
549 553anti-parallel
Strand 6
C
559 563anti-parallel
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