Analysis of interatomic Contacts of Structural Units in PDB entry:
2A3Y


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 2A3Y entry

There are 5 chains in PDB entry 2A3Y (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS 1VAL 204
B
 HIS 1VAL 204
C
 HIS 1VAL 204
D
 HIS 1VAL 204
E
 HIS 1VAL 204
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 2A3Y. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
145 149Right-handed 310
Helix 2
2
A
165 175Right-handed alpha
Helix 3
3
B
145 149Right-handed 310
Helix 4
4
B
165 174Right-handed alpha
Helix 5
5
C
145 149Right-handed 310
Helix 6
6
C
165 174Right-handed alpha
Helix 7
7
C
186 188Right-handed 310
Helix 8
8
D
145 149Right-handed 310
Helix 9
9
D
165 174Right-handed alpha
Helix 10
10
E
145 149Right-handed 310
Helix 11
11
E
165 175Right-handed alpha
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There are 15 sheets in PDB entry 2A3Y. 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,

There are 6 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
112 113first strand
Strand 2
A
104 109anti-parallel
Strand 3
A
92 99anti-parallel
Strand 4
A
32 40anti-parallel
Strand 5
A
152 160anti-parallel
Strand 6
A
183 184anti-parallel
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There are 7 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
117 118first strand
Strand 2
A
104 109anti-parallel
Strand 3
A
92 99anti-parallel
Strand 4
A
32 40anti-parallel
Strand 5
A
152 160anti-parallel
Strand 6
A
7 11anti-parallel
Strand 7
A
197 200anti-parallel
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There are 7 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
78 83first strand
Strand 2
A
70 75anti-parallel
Strand 3
A
57 67anti-parallel
Strand 4
A
47 54anti-parallel
Strand 5
A
130 133anti-parallel
Strand 6
A
19 23anti-parallel
Strand 7
A
189 193anti-parallel
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There are 6 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
112 113first strand
Strand 2
B
104 109anti-parallel
Strand 3
B
92 99anti-parallel
Strand 4
B
32 40anti-parallel
Strand 5
B
152 160anti-parallel
Strand 6
B
183 184anti-parallel
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There are 7 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
117 118first strand
Strand 2
B
104 109anti-parallel
Strand 3
B
92 99anti-parallel
Strand 4
B
32 40anti-parallel
Strand 5
B
152 160anti-parallel
Strand 6
B
7 11anti-parallel
Strand 7
B
197 200anti-parallel
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There are 7 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
78 83first strand
Strand 2
B
70 75anti-parallel
Strand 3
B
57 67anti-parallel
Strand 4
B
47 54anti-parallel
Strand 5
B
130 133anti-parallel
Strand 6
B
19 22anti-parallel
Strand 7
B
190 193anti-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
112 113first strand
Strand 2
C
104 109anti-parallel
Strand 3
C
92 99anti-parallel
Strand 4
C
32 40anti-parallel
Strand 5
C
152 160anti-parallel
Strand 6
C
183 184anti-parallel
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There are 7 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
117 118first strand
Strand 2
C
104 109anti-parallel
Strand 3
C
92 99anti-parallel
Strand 4
C
32 40anti-parallel
Strand 5
C
152 160anti-parallel
Strand 6
C
7 11anti-parallel
Strand 7
C
197 200anti-parallel
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There are 7 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
78 83first strand
Strand 2
C
70 75anti-parallel
Strand 3
C
57 67anti-parallel
Strand 4
C
47 54anti-parallel
Strand 5
C
130 133anti-parallel
Strand 6
C
19 22anti-parallel
Strand 7
C
190 193anti-parallel
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There are 6 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
112 113first strand
Strand 2
D
104 109anti-parallel
Strand 3
D
92 99anti-parallel
Strand 4
D
32 40anti-parallel
Strand 5
D
152 160anti-parallel
Strand 6
D
183 184anti-parallel
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There are 7 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
117 118first strand
Strand 2
D
104 109anti-parallel
Strand 3
D
92 99anti-parallel
Strand 4
D
32 40anti-parallel
Strand 5
D
152 160anti-parallel
Strand 6
D
7 11anti-parallel
Strand 7
D
197 200anti-parallel
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There are 7 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
78 83first strand
Strand 2
D
70 75anti-parallel
Strand 3
D
57 67anti-parallel
Strand 4
D
47 54anti-parallel
Strand 5
D
130 133anti-parallel
Strand 6
D
19 22anti-parallel
Strand 7
D
190 193anti-parallel
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There are 6 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
112 113first strand
Strand 2
E
104 109anti-parallel
Strand 3
E
92 99anti-parallel
Strand 4
E
32 40anti-parallel
Strand 5
E
152 160anti-parallel
Strand 6
E
183 184anti-parallel
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There are 7 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
117 118first strand
Strand 2
E
104 109anti-parallel
Strand 3
E
92 99anti-parallel
Strand 4
E
32 40anti-parallel
Strand 5
E
152 160anti-parallel
Strand 6
E
7 11anti-parallel
Strand 7
E
197 200anti-parallel
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There are 7 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
78 83first strand
Strand 2
E
70 75anti-parallel
Strand 3
E
57 67anti-parallel
Strand 4
E
47 54anti-parallel
Strand 5
E
130 133anti-parallel
Strand 6
E
19 23anti-parallel
Strand 7
E
189 193anti-parallel
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