Analysis of interatomic Contacts of Structural Units in PDB entry:
2LTQ


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 2LTQ entry

There are 6 chains in PDB entry 2LTQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 10ILE 162
B
 ASP 21CYS 239
C
 GLU 1PRO 221
D
 GLN 10ILE 162
E
 ASP 21CYS 239
F
 GLU 1LYS 215
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 21 helices in PDB entry 2LTQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
11 28Right-handed alpha
Helix 2
2
A
29 31Right-handed 310
Helix 3
3
A
43 62Right-handed alpha
Helix 4
4
A
72 97Right-handed alpha
Helix 5
5
A
144 162Right-handed alpha
Helix 6
6
B
146 152Right-handed alpha
Helix 7
7
B
209 214Right-handed 310
Helix 8
8
B
237 239Right-handed 310
Helix 9
9
C
28 32Right-handed 310
Helix 10
10
D
13 31Right-handed alpha
Helix 11
11
D
44 61Right-handed alpha
Helix 12
12
D
69 97Right-handed alpha
Helix 13
13
D
115 119Right-handed alpha
Helix 14
14
D
142 148Right-handed alpha
Helix 15
15
D
151 162Right-handed alpha
Helix 16
16
E
105 109Right-handed 310
Helix 17
17
E
146 152Right-handed alpha
Helix 18
18
E
208 212Right-handed alpha
Helix 19
19
F
28 32Right-handed 310
Helix 20
20
F
87 91Right-handed 310
Helix 21
21
F
162 164Right-handed 310
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There are 20 sheets in PDB entry 2LTQ. 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,

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
24 27first strand
Strand 2
B
39 45anti-parallel
Strand 3
B
96 101anti-parallel
Strand 4
B
88 92anti-parallel
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There are 5 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
30 33first strand
Strand 2
B
128 131parallel
Strand 3
B
110 116anti-parallel
Strand 4
B
59 64anti-parallel
Strand 5
B
71 74anti-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
30 33first strand
Strand 2
B
128 131parallel
Strand 3
B
110 116anti-parallel
Strand 4
B
122 123anti-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
139 143first strand
Strand 2
B
154 162anti-parallel
Strand 3
B
201 207anti-parallel
Strand 4
B
184 185anti-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
172 175first strand
Strand 2
B
216 220anti-parallel
Strand 3
B
231 235anti-parallel
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There are 4 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
3 7first strand
Strand 2
C
16 25anti-parallel
Strand 3
C
78 86anti-parallel
Strand 4
C
68 73anti-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
C
11 12first strand
Strand 2
C
114 117parallel
Strand 3
C
92 97anti-parallel
Strand 4
C
34 39anti-parallel
Strand 5
C
45 51anti-parallel
Strand 6
C
58 59anti-parallel
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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
C
126 130first strand
Strand 2
C
141 151anti-parallel
Strand 3
C
181 190anti-parallel
Strand 4
C
169 171anti-parallel
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There are 3 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
157 160first strand
Strand 2
C
200 205anti-parallel
Strand 3
C
210 215anti-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
E
24 27first strand
Strand 2
E
42 45anti-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
E
38 40first strand
Strand 2
E
100 102anti-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
71 74first strand
Strand 2
E
59 64anti-parallel
Strand 3
E
111 116anti-parallel
Strand 4
E
122 123anti-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
E
71 74first strand
Strand 2
E
59 64anti-parallel
Strand 3
E
111 116anti-parallel
Strand 4
E
127 128anti-parallel
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There are 4 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
139 143first strand
Strand 2
E
154 164anti-parallel
Strand 3
E
198 207anti-parallel
Strand 4
E
184 188anti-parallel
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There are 3 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
174 175first strand
Strand 2
E
216 221anti-parallel
Strand 3
E
230 235anti-parallel
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There are 4 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
4 7first strand
Strand 2
F
18 24anti-parallel
Strand 3
F
78 83anti-parallel
Strand 4
F
68 73anti-parallel
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There are 2 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
11 12first strand
Strand 2
F
116 117parallel
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There are 5 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
58 59first strand
Strand 2
F
45 51anti-parallel
Strand 3
F
34 39anti-parallel
Strand 4
F
93 99anti-parallel
Strand 5
F
106 109anti-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
F
126 130first strand
Strand 2
F
141 151anti-parallel
Strand 3
F
181 190anti-parallel
Strand 4
F
169 171anti-parallel
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There are 3 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
157 160first strand
Strand 2
F
201 205anti-parallel
Strand 3
F
210 214anti-parallel
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