Analysis of interatomic Contacts of Structural Units in PDB entry:
4IW4


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 4IW4 entry

There are 4 chains in PDB entry 4IW4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
C
 GLN 5ARG 142
D
 PRO 6ARG 142
E
 ILE 431GLU 704
F
 ILE 431GLY 697
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 12 helices in PDB entry 4IW4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
C
32 34Right-handed 310
Helix 2
2
D
6 10Right-handed 310
Helix 3
3
D
32 34Right-handed 310
Helix 4
4
D
101 104Right-handed 310
Helix 5
5
E
476 481Right-handed 310
Helix 6
6
E
493 496Right-handed 310
Helix 7
7
E
607 618Right-handed alpha
Helix 8
8
E
688 696Right-handed alpha
Helix 9
9
F
477 481Right-handed 310
Helix 10
10
F
493 495Right-handed 310
Helix 11
11
F
607 615Right-handed alpha
Helix 12
12
F
688 697Right-handed alpha
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There are 8 sheets in PDB entry 4IW4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 5 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
53 63first strand
Strand 2
C
70 83anti-parallel
Strand 3
C
115 120parallel
Strand 4
C
20 25anti-parallel
Strand 5
D
140 141anti-parallel
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There are 10 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
70 83first strand
Strand 2
E
658 668anti-parallel
Strand 3
E
680 684anti-parallel
Strand 4
E
628 631anti-parallel
Strand 5
E
599 606anti-parallel
Strand 6
E
435 436anti-parallel
Strand 7
E
599 606anti-parallel
Strand 8
E
568 573anti-parallel
Strand 9
E
648 653anti-parallel
Strand 10
E
658 668anti-parallel
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There are 9 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
93 98first strand
Strand 2
C
36 48anti-parallel
Strand 3
C
106 108anti-parallel
Strand 4
C
36 48anti-parallel
Strand 5
C
124 132anti-parallel
Strand 6
D
137 138anti-parallel
Strand 7
C
124 132anti-parallel
Strand 8
D
124 132anti-parallel
Strand 9
C
137 138anti-parallel
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There are 5 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
124 132first strand
Strand 2
D
36 47anti-parallel
Strand 3
D
106 108anti-parallel
Strand 4
D
36 47anti-parallel
Strand 5
D
94 98anti-parallel
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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
20 25first strand
Strand 2
D
115 120anti-parallel
Strand 3
D
70 75parallel
Strand 4
D
58 63anti-parallel
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There are 9 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
53 54first strand
Strand 2
D
81 83anti-parallel
Strand 3
F
658 668anti-parallel
Strand 4
F
680 684anti-parallel
Strand 5
F
628 631anti-parallel
Strand 6
F
599 606anti-parallel
Strand 7
F
568 573anti-parallel
Strand 8
F
648 653anti-parallel
Strand 9
F
658 668anti-parallel
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There are 7 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
445 450first strand
Strand 2
E
461 467anti-parallel
Strand 3
E
472 475anti-parallel
Strand 4
E
536 540anti-parallel
Strand 5
E
515 522anti-parallel
Strand 6
E
498 501anti-parallel
Strand 7
E
445 450anti-parallel
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There are 6 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
497 500first strand
Strand 2
F
445 451anti-parallel
Strand 3
F
460 467anti-parallel
Strand 4
F
472 475anti-parallel
Strand 5
F
536 539anti-parallel
Strand 6
F
519 522anti-parallel
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