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


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 2IAL entry

There are 4 chains in PDB entry 2IAL (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ILE 1SER 198
B
 ALA 2ASP 240
C
 ILE 1SER 198
D
 ALA 2ASP 240
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 2IAL. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
77 81Right-handed 310
Helix 2
2
A
161 164Right-handed 310
Helix 3
3
A
180 185Right-handed alpha
Helix 4
4
B
82 86Right-handed 310
Helix 5
5
B
112 116Right-handed 310
Helix 6
6
B
127 135Right-handed alpha
Helix 7
7
B
194 198Right-handed alpha
Helix 8
8
C
64 66Right-handed 310
Helix 9
9
C
77 81Right-handed 310
Helix 10
10
C
180 185Right-handed alpha
Helix 11
11
D
82 86Right-handed 310
Helix 12
12
D
112 116Right-handed 310
Helix 13
13
D
127 135Right-handed alpha
Helix 14
14
D
194 198Right-handed alpha
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There are 22 sheets in PDB entry 2IAL. 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,

There are 5 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
3 6first strand
Strand 2
A
18 24anti-parallel
Strand 3
A
68 73anti-parallel
Strand 4
A
58 63anti-parallel
Strand 5
A
51 55anti-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
A
9 13first strand
Strand 2
A
102 107parallel
Strand 3
A
82 90anti-parallel
Strand 4
A
28 36anti-parallel
Strand 5
A
42 47anti-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
9 13first strand
Strand 2
A
102 107parallel
Strand 3
A
82 90anti-parallel
Strand 4
A
95 98anti-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
116 121first strand
Strand 2
A
129 134anti-parallel
Strand 3
A
165 173anti-parallel
Strand 4
A
151 152anti-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
A
116 121first strand
Strand 2
A
129 134anti-parallel
Strand 3
A
165 173anti-parallel
Strand 4
A
156 160anti-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
B
4 7first strand
Strand 2
B
19 25anti-parallel
Strand 3
B
76 78anti-parallel
Strand 4
B
64 66anti-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
10 14first strand
Strand 2
B
105 110parallel
Strand 3
B
87 95anti-parallel
Strand 4
B
31 37anti-parallel
Strand 5
B
44 51anti-parallel
Strand 6
B
54 57anti-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
B
10 14first strand
Strand 2
B
105 110parallel
Strand 3
B
87 95anti-parallel
Strand 4
B
98 101anti-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
B
120 124first strand
Strand 2
B
136 146anti-parallel
Strand 3
B
184 193anti-parallel
Strand 4
B
166 168anti-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
B
120 124first strand
Strand 2
B
136 146anti-parallel
Strand 3
B
184 193anti-parallel
Strand 4
B
173 174anti-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
B
160 162first strand
Strand 2
B
151 157anti-parallel
Strand 3
B
203 210anti-parallel
Strand 4
B
229 236anti-parallel
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There are 5 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
3 6first strand
Strand 2
C
18 24anti-parallel
Strand 3
C
68 73anti-parallel
Strand 4
C
58 63anti-parallel
Strand 5
C
51 55anti-parallel
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There are 5 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
9 13first strand
Strand 2
C
102 107parallel
Strand 3
C
82 90anti-parallel
Strand 4
C
28 36anti-parallel
Strand 5
C
42 47anti-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
C
9 13first strand
Strand 2
C
102 107parallel
Strand 3
C
82 90anti-parallel
Strand 4
C
95 98anti-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
C
116 119first strand
Strand 2
C
129 134anti-parallel
Strand 3
C
165 174anti-parallel
Strand 4
C
150 152anti-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
C
116 119first strand
Strand 2
C
129 134anti-parallel
Strand 3
C
165 174anti-parallel
Strand 4
C
156 160anti-parallel
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There are 5 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
121 122first strand
Strand 2
D
120 125anti-parallel
Strand 3
D
136 146anti-parallel
Strand 4
D
184 193anti-parallel
Strand 5
D
166 168anti-parallel
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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
C
121 122first strand
Strand 2
D
120 125anti-parallel
Strand 3
D
136 146anti-parallel
Strand 4
D
184 193anti-parallel
Strand 5
D
173 174anti-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
D
4 7first strand
Strand 2
D
19 25anti-parallel
Strand 3
D
76 78anti-parallel
Strand 4
D
65 66anti-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
D
10 14first strand
Strand 2
D
105 110parallel
Strand 3
D
87 95anti-parallel
Strand 4
D
31 37anti-parallel
Strand 5
D
43 51anti-parallel
Strand 6
D
54 57anti-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
D
10 14first strand
Strand 2
D
105 110parallel
Strand 3
D
87 95anti-parallel
Strand 4
D
98 101anti-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
D
160 162first strand
Strand 2
D
151 157anti-parallel
Strand 3
D
203 210anti-parallel
Strand 4
D
229 236anti-parallel
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