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


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 1IQD entry

There are 3 chains in PDB entry 1IQD (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ILE 2ARG 212
B
 GLN 1VAL 212
C
 CYS 2174GLN 2329
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 11 helices in PDB entry 1IQD. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
30 32Right-handed 310
Helix 2
2
A
80 84Right-handed 310
Helix 3
3
A
122 127Right-handed alpha
Helix 4
4
A
184 188Right-handed alpha
Helix 5
5
B
28 32Right-handed 310
Helix 6
6
B
62 65Right-handed 310
Helix 7
7
B
84 88Right-handed 310
Helix 8
8
B
157 159Right-handed 310
Helix 9
9
B
202 205Right-handed 310
Helix 10
10
C
2186 2188Right-handed 310
Helix 11
11
C
2204 2208Right-handed 310
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There are 11 sheets in PDB entry 1IQD. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K,

There are 3 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
4 7first strand
Strand 2
A
19 29anti-parallel
Strand 3
A
63 76anti-parallel
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There are 8 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
10 13first strand
Strand 2
A
103 107parallel
Strand 3
A
86 91anti-parallel
Strand 4
A
98 99anti-parallel
Strand 5
A
86 91anti-parallel
Strand 6
A
34 39anti-parallel
Strand 7
A
46 50anti-parallel
Strand 8
A
54 55anti-parallel
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There are 4 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
115 119first strand
Strand 2
A
130 140anti-parallel
Strand 3
A
174 183anti-parallel
Strand 4
A
160 164anti-parallel
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There are 4 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
154 155first strand
Strand 2
A
146 151anti-parallel
Strand 3
A
192 198anti-parallel
Strand 4
A
207 211anti-parallel
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There are 4 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
3 6first strand
Strand 2
B
18 25anti-parallel
Strand 3
B
78 83anti-parallel
Strand 4
B
68 73anti-parallel
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There are 8 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
10 12first strand
Strand 2
B
108 112parallel
Strand 3
B
89 95anti-parallel
Strand 4
B
103 104anti-parallel
Strand 5
B
89 95anti-parallel
Strand 6
B
34 39anti-parallel
Strand 7
B
45 51anti-parallel
Strand 8
B
58 60anti-parallel
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There are 6 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
121 125first strand
Strand 2
B
138 146anti-parallel
Strand 3
B
177 184anti-parallel
Strand 4
B
164 166anti-parallel
Strand 5
B
177 184anti-parallel
Strand 6
B
170 171anti-parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
152 155first strand
Strand 2
B
195 201anti-parallel
Strand 3
B
206 212anti-parallel
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There are 12 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
2176 2177first strand
Strand 2
C
2320 2327anti-parallel
Strand 3
C
2230 2246anti-parallel
Strand 4
C
2190 2192anti-parallel
Strand 5
C
2230 2246anti-parallel
Strand 6
C
2293 2314anti-parallel
Strand 7
C
2254 2265anti-parallel
Strand 8
C
2248 2249anti-parallel
Strand 9
C
2254 2265anti-parallel
Strand 10
C
2272 2273anti-parallel
Strand 11
C
2254 2265anti-parallel
Strand 12
C
2283 2284anti-parallel
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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
2197 2198first strand
Strand 2
C
2201 2202anti-parallel
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There are 2 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
2275 2276first strand
Strand 2
C
2279 2280anti-parallel
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