Analysis of interatomic Contacts of Structural Units in PDB entry:
1E4X


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 1E4X entry

There are 6 chains in PDB entry 1E4X (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
H
 GLN 1PRO 212
I
 GLN 1ILE 213
L
 ASP 1CYS 214
M
 ASP 1CYS 214
P
 VAL 1ASP 7
Q
 VAL 1ASP 7
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 1E4X. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
H
61 64Right-handed 310
Helix 2
2
H
83 87Right-handed 310
Helix 3
3
H
153 155Right-handed 310
Helix 4
4
H
197 200Right-handed 310
Helix 5
5
I
61 64Right-handed 310
Helix 6
6
I
83 87Right-handed 310
Helix 7
7
I
153 155Right-handed 310
Helix 8
8
I
197 200Right-handed 310
Helix 9
9
L
79 83Right-handed 310
Helix 10
10
L
121 127Right-handed alpha
Helix 11
11
L
183 188Right-handed alpha
Helix 12
12
M
79 83Right-handed 310
Helix 13
13
M
121 127Right-handed alpha
Helix 14
14
M
183 188Right-handed alpha
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There are 18 sheets in PDB entry 1E4X. 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,

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
L
4 7first strand
Strand 2
L
19 25anti-parallel
Strand 3
L
70 75anti-parallel
Strand 4
L
62 67anti-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
L
10 13first strand
Strand 2
L
102 106parallel
Strand 3
L
84 90anti-parallel
Strand 4
L
33 38anti-parallel
Strand 5
L
44 48anti-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
L
114 118first strand
Strand 2
L
129 137anti-parallel
Strand 3
L
175 182anti-parallel
Strand 4
L
159 163anti-parallel
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There are 3 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
145 150first strand
Strand 2
L
191 197anti-parallel
Strand 3
L
205 210anti-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
H
3 6first strand
Strand 2
H
18 25anti-parallel
Strand 3
H
77 82anti-parallel
Strand 4
H
67 72anti-parallel
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There are 6 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
9 12first strand
Strand 2
H
104 108parallel
Strand 3
H
88 95anti-parallel
Strand 4
H
33 39anti-parallel
Strand 5
H
45 52anti-parallel
Strand 6
H
57 59anti-parallel
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There are 4 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
117 121first strand
Strand 2
H
132 142anti-parallel
Strand 3
H
172 181anti-parallel
Strand 4
H
160 162anti-parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
148 151first strand
Strand 2
H
191 196anti-parallel
Strand 3
H
201 206anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
166 168first strand
Strand 2
H
171 173anti-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
M
4 7first strand
Strand 2
M
19 25anti-parallel
Strand 3
M
70 75anti-parallel
Strand 4
M
62 67anti-parallel
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There are 5 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
10 13first strand
Strand 2
M
102 106parallel
Strand 3
M
84 90anti-parallel
Strand 4
M
33 38anti-parallel
Strand 5
M
44 48anti-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
M
114 118first strand
Strand 2
M
129 137anti-parallel
Strand 3
M
175 182anti-parallel
Strand 4
M
159 163anti-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
M
153 155first strand
Strand 2
M
145 150anti-parallel
Strand 3
M
191 197anti-parallel
Strand 4
M
205 210anti-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
I
3 5first strand
Strand 2
I
18 25anti-parallel
Strand 3
I
77 82anti-parallel
Strand 4
I
67 72anti-parallel
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There are 6 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
9 12first strand
Strand 2
I
104 108parallel
Strand 3
I
88 95anti-parallel
Strand 4
I
33 39anti-parallel
Strand 5
I
45 52anti-parallel
Strand 6
I
56 59anti-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
I
117 121first strand
Strand 2
I
132 142anti-parallel
Strand 3
I
172 181anti-parallel
Strand 4
I
160 162anti-parallel
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There are 3 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
148 151first strand
Strand 2
I
191 196anti-parallel
Strand 3
I
201 206anti-parallel
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There are 2 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
166 168first strand
Strand 2
I
171 173anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il