Analysis of interatomic Contacts of Structural Units in PDB entry:
4EN3


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 4EN3 entry

There are 4 chains in PDB entry 4EN3 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
C
 PHE 8TRP 277
A
 GLN 8PRO 201
B
 ALA 2TRP 242
D
 ILE 1MET 99
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 4EN3. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
C
59 89Right-handed alpha
Helix 2
2
C
138 149Right-handed alpha
Helix 3
3
C
151 164Right-handed alpha
Helix 4
4
C
164 177Right-handed alpha
Helix 5
5
C
177 182Right-handed alpha
Helix 6
6
A
79 83Right-handed 310
Helix 7
7
A
184 188Right-handed 310
Helix 8
8
B
82 86Right-handed 310
Helix 9
9
B
118 122Right-handed 310
Helix 10
10
B
133 138Right-handed alpha
Helix 11
11
B
200 205Right-handed alpha
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There are 17 sheets in PDB entry 4EN3. 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,

There are 8 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
48 49first strand
Strand 2
C
35 40anti-parallel
Strand 3
C
24 32anti-parallel
Strand 4
C
10 18anti-parallel
Strand 5
C
94 103anti-parallel
Strand 6
C
111 118anti-parallel
Strand 7
C
121 127anti-parallel
Strand 8
C
130 133anti-parallel
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There are 4 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
188 193first strand
Strand 2
C
203 211anti-parallel
Strand 3
C
243 250anti-parallel
Strand 4
C
231 232anti-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
C
188 193first strand
Strand 2
C
203 211anti-parallel
Strand 3
C
243 250anti-parallel
Strand 4
C
236 237anti-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
C
217 221first strand
Strand 2
C
260 264anti-parallel
Strand 3
C
273 276anti-parallel
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There are 5 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
9 13first strand
Strand 2
A
106 111parallel
Strand 3
A
84 91anti-parallel
Strand 4
A
30 36anti-parallel
Strand 5
A
43 49anti-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
A
9 13first strand
Strand 2
A
106 111parallel
Strand 3
A
84 91anti-parallel
Strand 4
A
100 102anti-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
A
18 23first strand
Strand 2
A
70 75anti-parallel
Strand 3
A
60 65anti-parallel
Strand 4
A
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
A
120 124first strand
Strand 2
A
134 138anti-parallel
Strand 3
A
173 177anti-parallel
Strand 4
A
155 156anti-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
A
161 162first strand
Strand 2
B
173 174anti-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
4 7first strand
Strand 2
B
19 25anti-parallel
Strand 3
B
76 78anti-parallel
Strand 4
B
65 66anti-parallel
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There are 6 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
10 14first strand
Strand 2
B
111 116parallel
Strand 3
B
87 94anti-parallel
Strand 4
B
31 37anti-parallel
Strand 5
B
43 49anti-parallel
Strand 6
B
56 57anti-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
B
10 14first strand
Strand 2
B
111 116parallel
Strand 3
B
87 94anti-parallel
Strand 4
B
106 107anti-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
B
126 130first strand
Strand 2
B
142 152anti-parallel
Strand 3
B
190 199anti-parallel
Strand 4
B
179 180anti-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
B
166 168first strand
Strand 2
B
157 163anti-parallel
Strand 3
B
210 216anti-parallel
Strand 4
B
235 241anti-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
D
6 11first strand
Strand 2
D
21 30anti-parallel
Strand 3
D
62 70anti-parallel
Strand 4
D
50 51anti-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
D
6 11first strand
Strand 2
D
21 30anti-parallel
Strand 3
D
62 70anti-parallel
Strand 4
D
55 56anti-parallel
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There are 4 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
44 45first strand
Strand 2
D
35 41anti-parallel
Strand 3
D
78 84anti-parallel
Strand 4
D
91 94anti-parallel
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