Analysis of interatomic Contacts of Structural Units in PDB entry:
1A3Q


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 1A3Q entry

There are 4 chains in PDB entry 1A3Q (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
C
 G 505 C 515
D
 G 605 C 615
A
 GLY 37PRO 327
B
 GLY 37PRO 327
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 1A3Q. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
145 159Right-handed alpha
Helix 2
2
A
167 183Right-handed alpha
Helix 3
3
A
277 279Right-handed 310
Helix 4
4
B
57 59Right-handed 310
Helix 5
5
B
142 162Right-handed alpha
Helix 6
6
B
167 175Right-handed alpha
Helix 7
7
B
178 183Right-handed alpha
Helix 8
8
B
222 226Right-handed 310
Helix 9
9
B
277 280Right-handed 310
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There are 8 sheets in PDB entry 1A3Q. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 3 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
39 44first strand
Strand 2
A
79 83anti-parallel
Strand 3
A
130 132anti-parallel
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There are 3 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
54 55first strand
Strand 2
A
136 140parallel
Strand 3
A
108 111anti-parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
230 233first strand
Strand 2
A
245 250anti-parallel
Strand 3
A
286 290anti-parallel
Strand 4
A
281 282anti-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
A
237 239first strand
Strand 2
A
321 326parallel
Strand 3
A
303 311anti-parallel
Strand 4
A
258 264anti-parallel
Strand 5
A
270 273anti-parallel
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There are 3 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
39 44first strand
Strand 2
B
79 83anti-parallel
Strand 3
B
130 132anti-parallel
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There are 3 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
54 55first strand
Strand 2
B
136 140parallel
Strand 3
B
108 111anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
230 233first strand
Strand 2
B
245 250anti-parallel
Strand 3
B
286 290anti-parallel
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There are 5 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
237 239first strand
Strand 2
B
321 326parallel
Strand 3
B
303 310anti-parallel
Strand 4
B
259 264anti-parallel
Strand 5
B
270 273anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il