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


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 1IZN entry

There are 4 chains in PDB entry 1IZN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ARG 7LYS 281
B
 SER 2ILE 271
C
 GLU 5TYR 277
D
 SER 2ILE 271
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 36 helices in PDB entry 1IZN. 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 23Right-handed alpha
Helix 2
2
A
28 41Right-handed alpha
Helix 3
3
A
42 61Right-handed alpha
Helix 4
4
A
117 136Right-handed alpha
Helix 5
3T3
A
165 167Right-handed 310
Helix 6
5A
A
221 253Right-handed alpha
Helix 7
5B
A
253 259Right-handed alpha
Helix 8
6
A
270 275Right-handed alpha
Helix 9
1
B
2 14Right-handed alpha
Helix 10
3T1
B
17 19Right-handed 310
Helix 11
2
B
20 32Right-handed alpha
Helix 12
3
B
35 43Right-handed alpha
Helix 13
3T2
B
62 64Right-handed 310
Helix 14
4
B
90 113Right-handed alpha
Helix 15
3T3
B
182 184Right-handed 310
Helix 16
5A
B
208 234Right-handed alpha
Helix 17
5B
B
234 244Right-handed alpha
Helix 18
6
B
252 268Right-handed alpha
Helix 19
1
C
9 23Right-handed alpha
Helix 20
2
C
28 41Right-handed alpha
Helix 21
3
C
42 61Right-handed alpha
Helix 22
3T2
C
77 81Right-handed 310
Helix 23
4
C
117 136Right-handed alpha
Helix 24
3T3
C
165 167Right-handed 310
Helix 25
5A
C
221 253Right-handed alpha
Helix 26
5B
C
254 258Right-handed 310
Helix 27
6
C
270 276Right-handed alpha
Helix 28
1
D
2 14Right-handed alpha
Helix 29
3T1
D
17 19Right-handed 310
Helix 30
2
D
20 32Right-handed alpha
Helix 31
3
D
35 43Right-handed alpha
Helix 32
3T2
D
62 64Right-handed 310
Helix 33
4
D
90 113Right-handed alpha
Helix 34
5A
D
208 234Right-handed alpha
Helix 35
5B
D
234 244Right-handed alpha
Helix 36
6
D
253 268Right-handed alpha
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There are 10 sheets in PDB entry 1IZN. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J,

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
63 65first strand
Strand 2
A
74 76anti-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
86 88first strand
Strand 2
A
94 97anti-parallel
Strand 3
A
109 110anti-parallel
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There are 10 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
139 148first strand
Strand 2
A
151 164anti-parallel
Strand 3
A
169 180anti-parallel
Strand 4
A
185 198anti-parallel
Strand 5
A
202 217anti-parallel
Strand 6
B
185 202anti-parallel
Strand 7
B
164 181anti-parallel
Strand 8
B
144 158anti-parallel
Strand 9
B
127 137anti-parallel
Strand 10
B
116 123anti-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
48 52first strand
Strand 2
B
57 61anti-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
66 67first strand
Strand 2
B
70 72anti-parallel
Strand 3
B
79 80anti-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
63 65first strand
Strand 2
C
74 76anti-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
C
86 87first strand
Strand 2
C
95 98anti-parallel
Strand 3
C
105 109anti-parallel
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There are 10 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
139 148first strand
Strand 2
C
151 164anti-parallel
Strand 3
C
169 182anti-parallel
Strand 4
C
185 198anti-parallel
Strand 5
C
202 217anti-parallel
Strand 6
D
185 202anti-parallel
Strand 7
D
164 181anti-parallel
Strand 8
D
144 158anti-parallel
Strand 9
D
127 137anti-parallel
Strand 10
D
116 124anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
48 52first strand
Strand 2
D
57 61anti-parallel
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There are 3 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
66 67first strand
Strand 2
D
70 72anti-parallel
Strand 3
D
79 80anti-parallel
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