Analysis of interatomic Contacts of Structural Units in PDB entry:
3R4U


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 3R4U entry

There are 2 chains in PDB entry 3R4U (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 864GLU 1291
B
 SER 864GLU 1291
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 15 helices in PDB entry 3R4U. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
865 870Right-handed alpha
Helix 2
2
A
926 934Right-handed alpha
Helix 3
3
A
996 1000Right-handed 310
Helix 4
4
A
1081 1092Right-handed alpha
Helix 5
5
A
1118 1120Right-handed 310
Helix 6
6
A
1211 1214Right-handed 310
Helix 7
7
A
1272 1277Right-handed 310
Helix 8
8
A
1279 1282Right-handed 310
Helix 9
9
B
864 870Right-handed alpha
Helix 10
10
B
926 932Right-handed alpha
Helix 11
11
B
1081 1092Right-handed alpha
Helix 12
12
B
1118 1120Right-handed 310
Helix 13
13
B
1211 1214Right-handed 310
Helix 14
14
B
1272 1277Right-handed 310
Helix 15
15
B
1279 1282Right-handed 310
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There are 10 sheets in PDB entry 3R4U. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J,

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
883 885first strand
Strand 2
A
872 878anti-parallel
Strand 3
A
1067 1076anti-parallel
Strand 4
A
909 912anti-parallel
Strand 5
A
900 901anti-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
883 885first strand
Strand 2
A
872 878anti-parallel
Strand 3
A
1067 1076anti-parallel
Strand 4
A
937 947anti-parallel
Strand 5
A
1008 1015anti-parallel
Strand 6
A
1019 1024anti-parallel
Strand 7
A
1027 1033anti-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
892 896first strand
Strand 2
A
920 924anti-parallel
Strand 3
A
1045 1052anti-parallel
Strand 4
A
956 963anti-parallel
Strand 5
A
966 973anti-parallel
Strand 6
A
976 984anti-parallel
Strand 7
A
987 994anti-parallel
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There are 13 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
1167 1174first strand
Strand 2
A
1177 1183anti-parallel
Strand 3
A
1198 1205anti-parallel
Strand 4
A
1261 1269anti-parallel
Strand 5
A
1241 1252anti-parallel
Strand 6
A
1226 1234anti-parallel
Strand 7
A
1167 1174first strand
Strand 8
A
1148 1154anti-parallel
Strand 9
A
1111 1116anti-parallel
Strand 10
A
1284 1288anti-parallel
Strand 11
A
1226 1234anti-parallel
Strand 12
A
1216 1223anti-parallel
Strand 13
A
1226 1234anti-parallel
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There are 2 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
1122 1127first strand
Strand 2
A
1130 1135anti-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
B
883 885first strand
Strand 2
B
872 878anti-parallel
Strand 3
B
1067 1076anti-parallel
Strand 4
B
909 912anti-parallel
Strand 5
B
900 901anti-parallel
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There are 7 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
883 885first strand
Strand 2
B
872 878anti-parallel
Strand 3
B
1067 1076anti-parallel
Strand 4
B
937 947anti-parallel
Strand 5
B
1008 1015anti-parallel
Strand 6
B
1019 1024anti-parallel
Strand 7
B
1027 1033anti-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
B
892 896first strand
Strand 2
B
920 924anti-parallel
Strand 3
B
1045 1052anti-parallel
Strand 4
B
956 963anti-parallel
Strand 5
B
966 973anti-parallel
Strand 6
B
976 984anti-parallel
Strand 7
B
987 994anti-parallel
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There are 13 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
1167 1174first strand
Strand 2
B
1177 1183anti-parallel
Strand 3
B
1198 1205anti-parallel
Strand 4
B
1261 1269anti-parallel
Strand 5
B
1241 1252anti-parallel
Strand 6
B
1226 1234anti-parallel
Strand 7
B
1167 1174first strand
Strand 8
B
1148 1154anti-parallel
Strand 9
B
1111 1116anti-parallel
Strand 10
B
1284 1288anti-parallel
Strand 11
B
1226 1234anti-parallel
Strand 12
B
1216 1223anti-parallel
Strand 13
B
1226 1234anti-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
B
1122 1127first strand
Strand 2
B
1130 1135anti-parallel
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