Analysis of interatomic Contacts of Structural Units in PDB entry:
21EA


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 21EA entry

There are 4 chains in PDB entry 21EA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 2VAL 1141
B
 C 1 A 111
C
 C -2 G 32
D
 A 0 G 11
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 28 helices in PDB entry 21EA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
54 84Right-handed alpha
Helix 2
AA2
A
88 95Right-handed alpha
Helix 3
AA3
A
104 112Right-handed alpha
Helix 4
AA4
A
118 132Right-handed alpha
Helix 5
AA5
A
149 166Right-handed alpha
Helix 6
AA6
A
169 179Right-handed alpha
Helix 7
AA7
A
211 229Right-handed alpha
Helix 8
AA8
A
235 247Right-handed alpha
Helix 9
AA9
A
297 311Right-handed alpha
Helix 10
AB1
A
329 341Right-handed alpha
Helix 11
AB2
A
349 351Right-handed 310
Helix 12
AB3
A
385 399Right-handed alpha
Helix 13
AB4
A
406 420Right-handed alpha
Helix 14
AB5
A
422 434Right-handed alpha
Helix 15
AB6
A
436 444Right-handed alpha
Helix 16
AB7
A
455 467Right-handed alpha
Helix 17
AB8
A
471 479Right-handed alpha
Helix 18
AB9
A
505 527Right-handed alpha
Helix 19
AC1
A
701 716Right-handed alpha
Helix 20
AC2
A
755 766Right-handed alpha
Helix 21
AC3
A
838 844Right-handed alpha
Helix 22
AC4
A
851 857Right-handed 310
Helix 23
AC5
A
914 916Right-handed 310
Helix 24
AC6
A
929 932Right-handed 310
Helix 25
AC7
A
933 947Right-handed alpha
Helix 26
AC8
A
950 955Right-handed alpha
Helix 27
AC9
A
1019 1021Right-handed 310
Helix 28
AD1
A
1036 1040Right-handed 310
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There are 10 sheets in PDB entry 21EA. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1,

There are 5 strands in AA1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
30 37first strand
Strand 2
A
16 21anti-parallel
Strand 3
A
3 7anti-parallel
Strand 4
A
531 534parallel
Strand 5
A
729 731parallel
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There are 2 strands in AA2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
39 40first strand
Strand 2
A
872 873parallel
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There are 2 strands in AA3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
345 347first strand
Strand 2
A
381 384anti-parallel
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There are 3 strands in AA4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
890 894first strand
Strand 2
A
904 912anti-parallel
Strand 3
A
974 980anti-parallel
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There are 2 strands in AA5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
959 962first strand
Strand 2
A
969 972anti-parallel
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There are 2 strands in AA6 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
985 987first strand
Strand 2
A
992 994anti-parallel
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There are 3 strands in AA7 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
1010 1017first strand
Strand 2
A
999 1007anti-parallel
Strand 3
A
1048 1053anti-parallel
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There are 2 strands in AA8 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
1029 1030first strand
Strand 2
A
1041 1042anti-parallel
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There are 6 strands in AA9 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
1105 1109first strand
Strand 2
A
1094 1098anti-parallel
Strand 3
A
1081 1089anti-parallel
Strand 4
A
1058 1063anti-parallel
Strand 5
A
1114 1122anti-parallel
Strand 6
A
1128 1130anti-parallel
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There are 2 strands in AB1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
1068 1071first strand
Strand 2
A
1074 1077anti-parallel
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