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


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 4IRQ entry

There are 4 chains in PDB entry 4IRQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLU 82SER 327
B
 ALA 88SER 327
C
 ASP 79SER 327
D
 GLU 85SER 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 27 helices in PDB entry 4IRQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
104 122Right-handed alpha
Helix 2
2
A
140 152Right-handed alpha
Helix 3
3
A
208 214Right-handed alpha
Helix 4
4
A
226 238Right-handed alpha
Helix 5
5
A
250 253Right-handed 310
Helix 6
6
A
273 278Right-handed alpha
Helix 7
7
A
321 325Right-handed 310
Helix 8
8
B
104 122Right-handed alpha
Helix 9
9
B
140 152Right-handed alpha
Helix 10
10
B
208 214Right-handed alpha
Helix 11
11
B
226 238Right-handed alpha
Helix 12
12
B
273 278Right-handed alpha
Helix 13
13
B
321 325Right-handed 310
Helix 14
14
C
104 122Right-handed alpha
Helix 15
15
C
140 152Right-handed alpha
Helix 16
16
C
208 214Right-handed alpha
Helix 17
17
C
226 237Right-handed alpha
Helix 18
18
C
250 253Right-handed 310
Helix 19
19
C
271 276Right-handed 310
Helix 20
20
C
321 325Right-handed 310
Helix 21
21
D
104 122Right-handed alpha
Helix 22
22
D
140 152Right-handed alpha
Helix 23
23
D
208 214Right-handed alpha
Helix 24
24
D
226 238Right-handed alpha
Helix 25
25
D
250 253Right-handed 310
Helix 26
26
D
273 278Right-handed alpha
Helix 27
27
D
321 325Right-handed 310
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There are 7 sheets in PDB entry 4IRQ. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

There are 14 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
183 184first strand
Strand 2
A
203 207anti-parallel
Strand 3
A
158 162anti-parallel
Strand 4
A
94 101parallel
Strand 5
A
125 133parallel
Strand 6
A
305 314parallel
Strand 7
A
292 302anti-parallel
Strand 8
D
292 302anti-parallel
Strand 9
D
305 314anti-parallel
Strand 10
D
125 133parallel
Strand 11
D
94 101parallel
Strand 12
D
158 162parallel
Strand 13
D
203 207anti-parallel
Strand 14
D
183 184anti-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
166 168first strand
Strand 2
A
255 257anti-parallel
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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
183 184first strand
Strand 2
B
203 207anti-parallel
Strand 3
B
158 162anti-parallel
Strand 4
B
94 101parallel
Strand 5
B
125 133parallel
Strand 6
B
305 314parallel
Strand 7
B
292 302anti-parallel
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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
167 168first strand
Strand 2
B
255 256anti-parallel
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There are 7 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
183 184first strand
Strand 2
C
203 207anti-parallel
Strand 3
C
158 162anti-parallel
Strand 4
C
94 101parallel
Strand 5
C
125 133parallel
Strand 6
C
305 314parallel
Strand 7
C
292 302anti-parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
166 168first strand
Strand 2
C
255 257anti-parallel
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There are 2 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
166 168first strand
Strand 2
D
255 257anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il