Analysis of interatomic Contacts of Structural Units in PDB entry:
1Q9O


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 1Q9O entry

There are 4 chains in PDB entry 1Q9O (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
B
 GLU 1CYS 213
D
 GLU 1CYS 213
A
 ASP 1CYS 213
C
 ASP 1CYS 213
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 18 helices in PDB entry 1Q9O. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
B
28 32Right-handed 310
Helix 2
2
B
52 52Right-handed 310
Helix 3
3
B
83 87Right-handed 310
Helix 4
4
B
154 156Right-handed 310
Helix 5
5
B
198 201Right-handed 310
Helix 6
6
D
28 32Right-handed 310
Helix 7
7
D
52 52Right-handed 310
Helix 8
8
D
83 87Right-handed 310
Helix 9
9
D
154 156Right-handed 310
Helix 10
10
D
184 186Right-handed 310
Helix 11
11
D
198 201Right-handed 310
Helix 12
12
A
79 83Right-handed 310
Helix 13
13
A
120 125Right-handed alpha
Helix 14
14
A
182 187Right-handed alpha
Helix 15
15
A
211 213Right-handed 310
Helix 16
16
C
79 83Right-handed 310
Helix 17
17
C
120 127Right-handed alpha
Helix 18
18
C
182 187Right-handed alpha
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There are 23 sheets in PDB entry 1Q9O. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W,

There are 4 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
3 7first strand
Strand 2
B
18 25anti-parallel
Strand 3
B
75 80anti-parallel
Strand 4
B
65 70anti-parallel
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There are 6 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
11 12first strand
Strand 2
B
105 109parallel
Strand 3
B
88 94anti-parallel
Strand 4
B
34 39anti-parallel
Strand 5
B
46 51anti-parallel
Strand 6
B
55 57anti-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
B
11 12first strand
Strand 2
B
105 109parallel
Strand 3
B
88 94anti-parallel
Strand 4
B
100 101anti-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
B
118 122first strand
Strand 2
B
133 143anti-parallel
Strand 3
B
172 182anti-parallel
Strand 4
B
161 163anti-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
118 122first strand
Strand 2
B
133 143anti-parallel
Strand 3
B
172 182anti-parallel
Strand 4
B
167 169anti-parallel
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There are 3 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
149 152first strand
Strand 2
B
192 197anti-parallel
Strand 3
B
202 207anti-parallel
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There are 4 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
3 7first strand
Strand 2
D
18 25anti-parallel
Strand 3
D
75 80anti-parallel
Strand 4
D
65 70anti-parallel
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There are 6 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
11 12first strand
Strand 2
D
105 109parallel
Strand 3
D
88 94anti-parallel
Strand 4
D
34 39anti-parallel
Strand 5
D
46 51anti-parallel
Strand 6
D
55 57anti-parallel
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There are 4 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
11 12first strand
Strand 2
D
105 109parallel
Strand 3
D
88 94anti-parallel
Strand 4
D
100 101anti-parallel
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There are 4 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
118 122first strand
Strand 2
D
133 143anti-parallel
Strand 3
D
172 182anti-parallel
Strand 4
D
161 163anti-parallel
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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
118 122first strand
Strand 2
D
133 143anti-parallel
Strand 3
D
172 182anti-parallel
Strand 4
D
167 169anti-parallel
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There are 3 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
149 152first strand
Strand 2
D
192 197anti-parallel
Strand 3
D
202 207anti-parallel
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There are 4 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
4 5first strand
Strand 2
A
19 25anti-parallel
Strand 3
A
70 75anti-parallel
Strand 4
A
62 67anti-parallel
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There are 6 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
10 14first strand
Strand 2
A
101 106parallel
Strand 3
A
84 90anti-parallel
Strand 4
A
33 38anti-parallel
Strand 5
A
45 49anti-parallel
Strand 6
A
53 54anti-parallel
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There are 4 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
10 14first strand
Strand 2
A
101 106parallel
Strand 3
A
84 90anti-parallel
Strand 4
A
96 97anti-parallel
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There are 2 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
30 30first strand
Strand 2
A
30 31anti-parallel
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There are 4 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
113 117first strand
Strand 2
A
128 138anti-parallel
Strand 3
A
172 181anti-parallel
Strand 4
A
158 162anti-parallel
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There are 4 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
152 154first strand
Strand 2
A
143 149anti-parallel
Strand 3
A
190 197anti-parallel
Strand 4
A
204 209anti-parallel
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There are 4 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
4 7first strand
Strand 2
C
19 25anti-parallel
Strand 3
C
70 75anti-parallel
Strand 4
C
62 67anti-parallel
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There are 6 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
10 14first strand
Strand 2
C
101 106parallel
Strand 3
C
84 90anti-parallel
Strand 4
C
33 38anti-parallel
Strand 5
C
45 49anti-parallel
Strand 6
C
53 54anti-parallel
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There are 4 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
10 14first strand
Strand 2
C
101 106parallel
Strand 3
C
84 90anti-parallel
Strand 4
C
96 97anti-parallel
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There are 4 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
113 117first strand
Strand 2
C
128 138anti-parallel
Strand 3
C
172 181anti-parallel
Strand 4
C
158 162anti-parallel
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There are 4 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
152 153first strand
Strand 2
C
143 149anti-parallel
Strand 3
C
191 197anti-parallel
Strand 4
C
204 208anti-parallel
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