Analysis of interatomic Contacts of Structural Units in PDB entry:
1A31


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 1A31 entry

There are 7 chains in PDB entry 1A31 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
C
 A 1 C 8
C
 T 11 A 17
C
 T 22 T 22
D
 A 101 T 106
D
 C 111 T 122
A
 ILE 215ASN 722
A
 LEU 724PHE 765
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 20 helices in PDB entry 1A31. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
251 263Right-handed alpha
Helix 2
2
A
267 270Right-handed 310
Helix 3
3
A
272 285Right-handed alpha
Helix 4
4
A
288 293Right-handed alpha
Helix 5
5
A
303 317Right-handed alpha
Helix 6
6
A
321 338Right-handed alpha
Helix 7
7
A
379 381Right-handed 310
Helix 8
8
A
434 466Right-handed alpha
Helix 9
9
A
472 485Right-handed alpha
Helix 10
10
A
504 506Right-handed 310
Helix 11
11
A
509 511Right-handed 310
Helix 12
12
A
532 534Right-handed 310
Helix 13
13
A
545 553Right-handed alpha
Helix 14
14
A
570 580Right-handed alpha
Helix 15
15
A
586 605Right-handed alpha
Helix 16
16
A
612 625Right-handed alpha
Helix 17
17
A
726 735Right-handed alpha
Helix 18
18
A
740 742Right-handed 310
Helix 19
19
A
746 751Right-handed alpha
Helix 20
20
A
753 756Right-handed alpha
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There are 4 sheets in PDB entry 1A31. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 2 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
340 343first strand
Strand 2
A
346 349anti-parallel
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There are 2 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
383 385first strand
Strand 2
A
403 405parallel
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There are 2 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
414 417first strand
Strand 2
A
424 427anti-parallel
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There are 3 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
512 515first strand
Strand 2
A
524 530anti-parallel
Strand 3
A
536 542anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il