Analysis of interatomic Contacts of Structural Units in PDB entry:
1AI4


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 1AI4 entry

There are 2 chains in PDB entry 1AI4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 3THR 208
B
 SER 1ARG 557
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 21 helices in PDB entry 1AI4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
A
A
24 38Right-handed alpha
Helix 2
B
A
40 51Right-handed alpha
Helix 3
C
A
55 58Right-handed alpha
Helix 4
D
A
63 71Right-handed alpha
Helix 5
E
A
75 83Right-handed alpha
Helix 6
F
A
87 109Right-handed alpha
Helix 7
G
A
118 122Right-handed alpha
Helix 8
H
A
131 146Right-handed alpha
Helix 9
I
A
152 166Right-handed alpha
Helix 10
J
A
168 178Right-handed alpha
Helix 11
K
B
147 156Right-handed alpha
Helix 12
L
B
163 172Right-handed alpha
Helix 13
M
B
265 272Right-handed alpha
Helix 14
N
B
279 291Right-handed alpha
Helix 15
O
B
296 307Right-handed alpha
Helix 16
P
B
315 325Right-handed alpha
Helix 17
Q
B
343 362Right-handed alpha
Helix 18
R
B
391 401Right-handed alpha
Helix 19
S
B
420 438Right-handed alpha
Helix 20
T
B
525 530Right-handed alpha
Helix 21
U
B
540 546Right-handed alpha
Back to top of page

There are 4 sheets in PDB entry 1AI4. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 10 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
547 554first strand
Strand 2
A
6 12anti-parallel
Strand 3
A
17 20anti-parallel
Strand 4
B
32 39parallel
Strand 5
B
42 49anti-parallel
Strand 6
B
57 59anti-parallel
Strand 7
B
63 69anti-parallel
Strand 8
B
175 183anti-parallel
Strand 9
B
188 194anti-parallel
Strand 10
B
228 230anti-parallel
Back to list of sheets
Back to top of page

There are 5 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
497 501first strand
Strand 2
B
484 490anti-parallel
Strand 3
B
14 21anti-parallel
Strand 4
B
2 7anti-parallel
Strand 5
B
236 239anti-parallel
Back to list of sheets
Back to top of page

There are 7 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
75 81first strand
Strand 2
B
89 92anti-parallel
Strand 3
B
95 98anti-parallel
Strand 4
B
100 106parallel
Strand 5
B
114 121anti-parallel
Strand 6
B
124 130anti-parallel
Strand 7
B
135 141anti-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
B
451 455first strand
Strand 2
B
471 475anti-parallel
Back to list of sheets
Back to top of page
Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il