Analysis of interatomic Contacts of Structural Units in PDB entry:
4A1R


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 4A1R entry

There are 4 chains in PDB entry 4A1R (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 32LYS 173
B
 VAL 33ASP 176
C
 PRO 34VAL 175
D
 VAL 33VAL 175
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 9 helices in PDB entry 4A1R. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
68 74Right-handed alpha
Helix 2
2
A
75 88Right-handed alpha
Helix 3
3
A
141 149Right-handed 310
Helix 4
4
B
75 88Right-handed alpha
Helix 5
5
C
68 74Right-handed alpha
Helix 6
6
C
75 88Right-handed alpha
Helix 7
7
D
68 74Right-handed alpha
Helix 8
8
D
75 87Right-handed alpha
Helix 9
9
D
146 150Right-handed 310
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There are 9 sheets in PDB entry 4A1R. Click on sheet of interest to get list of strands forming it: AA, BA, CA, CB, AB, BB, BC, CC, A,

There are 2 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
168 171first strand
Strand 2
A
157 165anti-parallel
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There are 2 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
152 153first strand
Strand 2
A
157 165parallel
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There are 8 strands in CA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
168 171first strand
Strand 2
C
157 165anti-parallel
Strand 3
C
36 43parallel
Strand 4
C
106 111anti-parallel
Strand 5
A
106 111anti-parallel
Strand 6
A
36 43anti-parallel
Strand 7
A
157 165parallel
Strand 8
A
168 171anti-parallel
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There are 8 strands in CB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
168 171first strand
Strand 2
C
157 165anti-parallel
Strand 3
C
36 43parallel
Strand 4
C
106 111anti-parallel
Strand 5
A
106 111anti-parallel
Strand 6
A
36 43anti-parallel
Strand 7
A
157 165parallel
Strand 8
B
152 153parallel
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There are 4 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
91 99first strand
Strand 2
A
58 65anti-parallel
Strand 3
A
118 123anti-parallel
Strand 4
A
134 138anti-parallel
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There are 8 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
168 171first strand
Strand 2
B
157 165anti-parallel
Strand 3
B
36 43parallel
Strand 4
B
106 111anti-parallel
Strand 5
D
106 111anti-parallel
Strand 6
D
36 43anti-parallel
Strand 7
D
157 165parallel
Strand 8
D
168 171anti-parallel
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There are 4 strands in BC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
91 99first strand
Strand 2
B
58 65anti-parallel
Strand 3
B
118 123anti-parallel
Strand 4
B
134 138anti-parallel
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There are 4 strands in CC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
91 99first strand
Strand 2
C
58 65anti-parallel
Strand 3
C
118 123anti-parallel
Strand 4
C
134 138anti-parallel
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There are 4 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
91 99first strand
Strand 2
D
58 65anti-parallel
Strand 3
D
118 124anti-parallel
Strand 4
D
134 138anti-parallel
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