Analysis of interatomic Contacts of Structural Units in PDB entry:
1A4C


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 1A4C entry

There are 4 chains in PDB entry 1A4C (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 1ASN 129
B
 ALA 1ASN 129
C
 ALA 1ASN 129
D
 ALA 1ASN 129
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 8 helices in PDB entry 1A4C. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA
A
55 67Right-handed alpha
Helix 2
BA
A
98 102Right-handed 310
Helix 3
AB
B
55 67Right-handed alpha
Helix 4
BB
B
98 102Right-handed 310
Helix 5
AC
C
55 67Right-handed alpha
Helix 6
BC
C
98 102Right-handed 310
Helix 7
AD
D
55 67Right-handed alpha
Helix 8
BD
D
98 102Right-handed 310
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There are 8 sheets in PDB entry 1A4C. Click on sheet of interest to get list of strands forming it: B1A, B2A, B1B, B2B, B1C, B2C, B1D, B2D,

There are 4 strands in B1A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
14 16first strand
Strand 2
A
3 10anti-parallel
Strand 3
A
27 36parallel
Strand 4
A
91 99anti-parallel
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There are 5 strands in B2A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
18 22first strand
Strand 2
A
121 128parallel
Strand 3
A
108 112anti-parallel
Strand 4
A
46 51anti-parallel
Strand 5
A
81 87anti-parallel
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There are 4 strands in B1B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
14 16first strand
Strand 2
B
3 10anti-parallel
Strand 3
B
27 36parallel
Strand 4
B
91 99anti-parallel
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There are 5 strands in B2B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
18 22first strand
Strand 2
B
121 128parallel
Strand 3
B
108 112anti-parallel
Strand 4
B
46 51anti-parallel
Strand 5
B
81 87anti-parallel
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There are 4 strands in B1C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
14 16first strand
Strand 2
C
3 10anti-parallel
Strand 3
C
27 36parallel
Strand 4
C
91 99anti-parallel
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There are 5 strands in B2C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
18 22first strand
Strand 2
C
121 128parallel
Strand 3
C
108 112anti-parallel
Strand 4
C
46 51anti-parallel
Strand 5
C
81 87anti-parallel
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There are 4 strands in B1D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
14 16first strand
Strand 2
D
3 10anti-parallel
Strand 3
D
27 36parallel
Strand 4
D
91 99anti-parallel
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There are 5 strands in B2D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
18 22first strand
Strand 2
D
121 128parallel
Strand 3
D
108 112anti-parallel
Strand 4
D
46 51anti-parallel
Strand 5
D
81 87anti-parallel
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