Analysis of interatomic Contacts of Structural Units in PDB entry:
4U3X


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 4U3X entry

There are 4 chains in PDB entry 4U3X (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 VAL 2SER 120
B
 LYS 1ARG 128
C
 VAL 2VAL 119
D
 LYS 1ARG 128
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 22 helices in PDB entry 4U3X. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
28 32Right-handed 310
Helix 2
AA2
A
62 65Right-handed 310
Helix 3
AA3
A
74 76Right-handed 310
Helix 4
AA4
A
87 91Right-handed 310
Helix 5
AA5
B
4 15Right-handed alpha
Helix 6
AA6
B
19 23Right-handed 310
Helix 7
AA7
B
24 37Right-handed alpha
Helix 8
AA8
B
79 84Right-handed 310
Helix 9
AA9
B
88 100Right-handed alpha
Helix 10
AB1
B
103 107Right-handed 310
Helix 11
AB2
B
108 115Right-handed alpha
Helix 12
AB3
B
119 125Right-handed 310
Helix 13
AB4
C
28 32Right-handed 310
Helix 14
AB5
C
87 91Right-handed 310
Helix 15
AB6
D
4 15Right-handed alpha
Helix 16
AB7
D
19 23Right-handed 310
Helix 17
AB8
D
24 37Right-handed alpha
Helix 18
AB9
D
79 84Right-handed 310
Helix 19
AC1
D
88 101Right-handed alpha
Helix 20
AC2
D
103 107Right-handed 310
Helix 21
AC3
D
108 115Right-handed alpha
Helix 22
AC4
D
119 124Right-handed 310
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There are 8 sheets in PDB entry 4U3X. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8,

There are 4 strands in AA1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
3 7first strand
Strand 2
A
18 25anti-parallel
Strand 3
A
78 83anti-parallel
Strand 4
A
68 73anti-parallel
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There are 6 strands in AA2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
11 12first strand
Strand 2
A
115 119parallel
Strand 3
A
92 98anti-parallel
Strand 4
A
34 39anti-parallel
Strand 5
A
45 52anti-parallel
Strand 6
A
57 60anti-parallel
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There are 4 strands in AA3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
11 12first strand
Strand 2
A
115 119parallel
Strand 3
A
92 98anti-parallel
Strand 4
A
110 111anti-parallel
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There are 3 strands in AA4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
43 45first strand
Strand 2
B
51 53anti-parallel
Strand 3
B
58 59anti-parallel
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There are 4 strands in AA5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
3 7first strand
Strand 2
C
18 25anti-parallel
Strand 3
C
78 83anti-parallel
Strand 4
C
68 73anti-parallel
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There are 5 strands in AA6 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
57 60first strand
Strand 2
C
46 52anti-parallel
Strand 3
C
34 39anti-parallel
Strand 4
C
92 98anti-parallel
Strand 5
C
110 111anti-parallel
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There are 5 strands in AA7 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
57 60first strand
Strand 2
C
46 52anti-parallel
Strand 3
C
34 39anti-parallel
Strand 4
C
92 98anti-parallel
Strand 5
C
115 117anti-parallel
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There are 3 strands in AA8 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
43 45first strand
Strand 2
D
51 53anti-parallel
Strand 3
D
58 59anti-parallel
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