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


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 1QRN entry

There are 5 chains in PDB entry 1QRN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 1TRP 274
B
 MET 0MET 99
C
 LEU 1VAL 9
D
 LYS 1SER 206
E
 GLY 3ASP 246
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 14 helices in PDB entry 1QRN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
49 54Right-handed alpha
Helix 2
2
A
56 85Right-handed alpha
Helix 3
3
A
137 150Right-handed alpha
Helix 4
4
A
151 162Right-handed alpha
Helix 5
5
A
162 175Right-handed alpha
Helix 6
6
A
175 180Right-handed alpha
Helix 7
7
A
252 256Right-handed 310
Helix 8
8
D
81 85Right-handed 310
Helix 9
9
D
188 193Right-handed alpha
Helix 10
10
E
83 87Right-handed 310
Helix 11
11
E
96 100Right-handed 310
Helix 12
12
E
118 122Right-handed 310
Helix 13
13
E
133 141Right-handed alpha
Helix 14
14
E
200 204Right-handed alpha
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There are 18 sheets in PDB entry 1QRN. Click on sheet of interest to get list of strands forming it: A, B, B1, C, D, D1, E, F, G, G1, H, H1, I, J, J1, K, K1, L,

There are 8 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
46 47first strand
Strand 2
A
31 37anti-parallel
Strand 3
A
21 28anti-parallel
Strand 4
A
3 12anti-parallel
Strand 5
A
94 103anti-parallel
Strand 6
A
109 118anti-parallel
Strand 7
A
121 126anti-parallel
Strand 8
A
133 135anti-parallel
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There are 4 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
188 195first strand
Strand 2
A
198 208anti-parallel
Strand 3
A
241 249anti-parallel
Strand 4
A
228 230anti-parallel
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There are 4 strands in B1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
188 195first strand
Strand 2
A
198 208anti-parallel
Strand 3
A
241 249anti-parallel
Strand 4
A
234 235anti-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
222 223first strand
Strand 2
A
214 219anti-parallel
Strand 3
A
258 262anti-parallel
Strand 4
A
270 273anti-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
6 11first strand
Strand 2
B
21 30anti-parallel
Strand 3
B
62 70anti-parallel
Strand 4
B
50 51anti-parallel
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There are 4 strands in D1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
6 11first strand
Strand 2
B
21 30anti-parallel
Strand 3
B
62 70anti-parallel
Strand 4
B
55 56anti-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
44 45first strand
Strand 2
B
36 41anti-parallel
Strand 3
B
78 83anti-parallel
Strand 4
B
91 94anti-parallel
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There are 5 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
3 5first strand
Strand 2
D
18 24anti-parallel
Strand 3
D
72 77anti-parallel
Strand 4
D
62 67anti-parallel
Strand 5
D
54 57anti-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
44 49first strand
Strand 2
D
31 37anti-parallel
Strand 3
D
86 93anti-parallel
Strand 4
D
105 106anti-parallel
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There are 5 strands in G1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
44 49first strand
Strand 2
D
31 37anti-parallel
Strand 3
D
86 93anti-parallel
Strand 4
D
110 115anti-parallel
Strand 5
D
10 13parallel
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There are 4 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
124 128first strand
Strand 2
D
137 142anti-parallel
Strand 3
D
173 182anti-parallel
Strand 4
D
158 160anti-parallel
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There are 4 strands in H1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
124 128first strand
Strand 2
D
137 142anti-parallel
Strand 3
D
173 182anti-parallel
Strand 4
D
164 168anti-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
E
4 7first strand
Strand 2
E
19 25anti-parallel
Strand 3
E
77 79anti-parallel
Strand 4
E
65 67anti-parallel
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There are 5 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
54 57first strand
Strand 2
E
42 51anti-parallel
Strand 3
E
31 38anti-parallel
Strand 4
E
88 95anti-parallel
Strand 5
E
107 108anti-parallel
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There are 6 strands in J1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
54 57first strand
Strand 2
E
42 51anti-parallel
Strand 3
E
31 38anti-parallel
Strand 4
E
88 95anti-parallel
Strand 5
E
112 116anti-parallel
Strand 6
E
10 14parallel
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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
E
129 130first strand
Strand 2
E
142 152anti-parallel
Strand 3
E
190 199anti-parallel
Strand 4
E
172 174anti-parallel
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There are 4 strands in K1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
129 130first strand
Strand 2
E
142 152anti-parallel
Strand 3
E
190 199anti-parallel
Strand 4
E
179 180anti-parallel
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There are 4 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
166 168first strand
Strand 2
E
157 163anti-parallel
Strand 3
E
209 216anti-parallel
Strand 4
E
235 242anti-parallel
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