Analysis of interatomic Contacts of Structural Units in PDB entry:
4X4X


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 4X4X entry

There are 4 chains in PDB entry 4X4X (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 VAL 2SER 119
B
 ASP 1ILE 106
C
 VAL 2SER 119
D
 ASP 1ILE 106
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 7 helices in PDB entry 4X4X. 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
87 91Right-handed 310
Helix 3
AA3
A
100 104Right-handed 310
Helix 4
AA4
B
79 83Right-handed 310
Helix 5
AA5
C
28 32Right-handed 310
Helix 6
AA6
C
87 91Right-handed 310
Helix 7
AA7
D
79 83Right-handed 310
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There are 12 sheets in PDB entry 4X4X. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3,

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
114 118parallel
Strand 3
A
92 98anti-parallel
Strand 4
A
34 39anti-parallel
Strand 5
A
46 51anti-parallel
Strand 6
A
58 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
114 118parallel
Strand 3
A
92 98anti-parallel
Strand 4
A
109 110anti-parallel
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There are 4 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
4 7first strand
Strand 2
B
19 25anti-parallel
Strand 3
B
71 75anti-parallel
Strand 4
B
62 66anti-parallel
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There are 6 strands in AA5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
10 12first strand
Strand 2
B
102 105parallel
Strand 3
B
84 90anti-parallel
Strand 4
B
33 38anti-parallel
Strand 5
B
45 49anti-parallel
Strand 6
B
53 54anti-parallel
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There are 4 strands in AA6 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
10 12first strand
Strand 2
B
102 105parallel
Strand 3
B
84 90anti-parallel
Strand 4
B
97 98anti-parallel
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There are 4 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
3 8first 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 6 strands in AA8 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
11 12first strand
Strand 2
C
114 118parallel
Strand 3
C
92 98anti-parallel
Strand 4
C
34 39anti-parallel
Strand 5
C
46 52anti-parallel
Strand 6
C
57 60anti-parallel
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There are 4 strands in AA9 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
11 12first strand
Strand 2
C
114 118parallel
Strand 3
C
92 98anti-parallel
Strand 4
C
109 110anti-parallel
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There are 4 strands in AB1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
4 7first strand
Strand 2
D
19 25anti-parallel
Strand 3
D
71 75anti-parallel
Strand 4
D
62 66anti-parallel
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There are 5 strands in AB2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
10 12first strand
Strand 2
D
102 105parallel
Strand 3
D
84 90anti-parallel
Strand 4
D
33 38anti-parallel
Strand 5
D
44 48anti-parallel
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There are 4 strands in AB3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
10 12first strand
Strand 2
D
102 105parallel
Strand 3
D
84 90anti-parallel
Strand 4
D
97 98anti-parallel
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