Analysis of interatomic Contacts of Structural Units in PDB entry:
1A3A


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 1A3A entry

There are 4 chains in PDB entry 1A3A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LEU 4LYS 148
B
 PHE 5ALA 145
C
 ASN 3LYS 148
D
 LEU 4ARG 147
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
Back to top of page

There are 30 helices in PDB entry 1A3A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
9 11Right-handed 310
Helix 2
2
A
21 34Right-handed alpha
Helix 3
3
A
40 52Right-handed 310
Helix 4
4
A
68 73Right-handed 310
Helix 5
5
A
111 121Right-handed alpha
Helix 6
6
A
125 133Right-handed alpha
Helix 7
7
A
137 143Right-handed alpha
Helix 8
8
B
9 11Right-handed 310
Helix 9
9
B
21 34Right-handed alpha
Helix 10
10
B
40 52Right-handed 310
Helix 11
11
B
68 73Right-handed 310
Helix 12
12
B
111 121Right-handed alpha
Helix 13
13
B
125 133Right-handed alpha
Helix 14
14
B
137 143Right-handed alpha
Helix 15
15
C
9 11Right-handed 310
Helix 16
16
C
21 34Right-handed alpha
Helix 17
17
C
40 52Right-handed 310
Helix 18
18
C
68 73Right-handed 310
Helix 19
19
C
107 109Right-handed 310
Helix 20
20
C
111 121Right-handed alpha
Helix 21
21
C
125 133Right-handed alpha
Helix 22
22
C
137 143Right-handed alpha
Helix 23
23
D
9 11Right-handed 310
Helix 24
24
D
21 34Right-handed alpha
Helix 25
25
D
40 52Right-handed 310
Helix 26
26
D
68 73Right-handed 310
Helix 27
27
D
107 109Right-handed 310
Helix 28
28
D
111 121Right-handed alpha
Helix 29
29
D
125 133Right-handed alpha
Helix 30
30
D
137 144Right-handed alpha
Back to top of page

There are 4 sheets in PDB entry 1A3A. 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
78 83first strand
Strand 2
A
100 105anti-parallel
Back to list of sheets
Back to top of page

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
B
78 83first strand
Strand 2
B
100 105anti-parallel
Back to list of sheets
Back to top of page

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
C
78 83first strand
Strand 2
C
100 105anti-parallel
Back to list of sheets
Back to top of page

There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
78 83first strand
Strand 2
D
100 105anti-parallel
Back to list of sheets
Back to top of page
Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il