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


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 4EQY entry

There are 6 chains in PDB entry 4EQY (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 3ARG 263
B
 SER 3ARG 263
C
 ARG 4ARG 263
E
 SER 3ARG 263
F
 ARG 4ARG 263
G
 ARG 4ALA 37
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 24 helices in PDB entry 4EQY. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
195 202Right-handed alpha
Helix 2
2
A
205 221Right-handed alpha
Helix 3
3
A
225 237Right-handed alpha
Helix 4
4
A
243 256Right-handed alpha
Helix 5
5
B
195 202Right-handed alpha
Helix 6
6
B
205 221Right-handed alpha
Helix 7
7
B
225 237Right-handed alpha
Helix 8
8
B
243 256Right-handed alpha
Helix 9
9
C
195 202Right-handed alpha
Helix 10
10
C
205 221Right-handed alpha
Helix 11
11
C
225 239Right-handed alpha
Helix 12
12
C
243 256Right-handed alpha
Helix 13
13
E
195 202Right-handed alpha
Helix 14
14
E
205 221Right-handed alpha
Helix 15
15
E
225 237Right-handed alpha
Helix 16
16
E
243 256Right-handed alpha
Helix 17
17
F
195 202Right-handed alpha
Helix 18
18
F
205 221Right-handed alpha
Helix 19
19
F
225 237Right-handed alpha
Helix 20
20
F
243 256Right-handed alpha
Helix 21
21
G
195 202Right-handed alpha
Helix 22
22
G
205 221Right-handed alpha
Helix 23
23
G
225 237Right-handed alpha
Helix 24
24
G
243 256Right-handed alpha
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There are 18 sheets in PDB entry 4EQY. 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 9 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
10 11first strand
Strand 2
A
28 29parallel
Strand 3
A
46 47parallel
Strand 4
A
64 67parallel
Strand 5
A
94 96parallel
Strand 6
A
119 120parallel
Strand 7
A
137 138parallel
Strand 8
A
155 156parallel
Strand 9
A
173 174parallel
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There are 8 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
16 17first strand
Strand 2
A
33 35parallel
Strand 3
A
50 53parallel
Strand 4
A
80 83parallel
Strand 5
A
105 108parallel
Strand 6
A
125 126parallel
Strand 7
A
143 144parallel
Strand 8
A
161 162parallel
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There are 10 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
22 23first strand
Strand 2
A
40 41parallel
Strand 3
A
58 59parallel
Strand 4
A
88 89parallel
Strand 5
A
113 114parallel
Strand 6
A
131 132parallel
Strand 7
A
149 150parallel
Strand 8
A
167 168parallel
Strand 9
A
182 185parallel
Strand 10
A
190 194anti-parallel
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There are 9 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
10 11first strand
Strand 2
B
28 29parallel
Strand 3
B
46 47parallel
Strand 4
B
63 67parallel
Strand 5
B
93 96parallel
Strand 6
B
119 120parallel
Strand 7
B
137 138parallel
Strand 8
B
155 156parallel
Strand 9
B
173 174parallel
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There are 8 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
16 17first strand
Strand 2
B
33 35parallel
Strand 3
B
50 53parallel
Strand 4
B
80 83parallel
Strand 5
B
105 108parallel
Strand 6
B
125 126parallel
Strand 7
B
143 144parallel
Strand 8
B
161 162parallel
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There are 10 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
22 23first strand
Strand 2
B
40 41parallel
Strand 3
B
58 59parallel
Strand 4
B
88 89parallel
Strand 5
B
113 114parallel
Strand 6
B
131 132parallel
Strand 7
B
149 150parallel
Strand 8
B
167 168parallel
Strand 9
B
182 185parallel
Strand 10
B
190 194anti-parallel
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There are 9 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
10 11first strand
Strand 2
C
28 29parallel
Strand 3
C
46 47parallel
Strand 4
C
64 67parallel
Strand 5
C
94 96parallel
Strand 6
C
119 120parallel
Strand 7
C
137 138parallel
Strand 8
C
155 156parallel
Strand 9
C
173 174parallel
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There are 8 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
16 17first strand
Strand 2
C
33 35parallel
Strand 3
C
50 53parallel
Strand 4
C
80 83parallel
Strand 5
C
105 108parallel
Strand 6
C
125 126parallel
Strand 7
C
143 144parallel
Strand 8
C
161 162parallel
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There are 10 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
22 23first strand
Strand 2
C
40 41parallel
Strand 3
C
58 59parallel
Strand 4
C
88 89parallel
Strand 5
C
113 114parallel
Strand 6
C
131 132parallel
Strand 7
C
149 150parallel
Strand 8
C
167 168parallel
Strand 9
C
182 185parallel
Strand 10
C
190 194anti-parallel
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There are 9 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
10 11first strand
Strand 2
E
28 29parallel
Strand 3
E
46 47parallel
Strand 4
E
64 67parallel
Strand 5
E
94 96parallel
Strand 6
E
119 120parallel
Strand 7
E
137 138parallel
Strand 8
E
155 156parallel
Strand 9
E
173 174parallel
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There are 8 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
16 17first strand
Strand 2
E
33 35parallel
Strand 3
E
50 53parallel
Strand 4
E
80 83parallel
Strand 5
E
105 108parallel
Strand 6
E
125 126parallel
Strand 7
E
143 144parallel
Strand 8
E
161 162parallel
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There are 10 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
22 23first strand
Strand 2
E
40 41parallel
Strand 3
E
58 59parallel
Strand 4
E
88 89parallel
Strand 5
E
113 114parallel
Strand 6
E
131 132parallel
Strand 7
E
149 150parallel
Strand 8
E
167 168parallel
Strand 9
E
182 185parallel
Strand 10
E
190 194anti-parallel
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There are 9 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
10 11first strand
Strand 2
F
28 29parallel
Strand 3
F
46 47parallel
Strand 4
F
64 67parallel
Strand 5
F
94 96parallel
Strand 6
F
119 120parallel
Strand 7
F
137 138parallel
Strand 8
F
155 156parallel
Strand 9
F
173 174parallel
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There are 8 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
16 17first strand
Strand 2
F
33 35parallel
Strand 3
F
50 53parallel
Strand 4
F
80 83parallel
Strand 5
F
105 108parallel
Strand 6
F
125 126parallel
Strand 7
F
143 144parallel
Strand 8
F
161 162parallel
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There are 10 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
22 23first strand
Strand 2
F
40 41parallel
Strand 3
F
58 59parallel
Strand 4
F
88 89parallel
Strand 5
F
113 114parallel
Strand 6
F
131 132parallel
Strand 7
F
149 150parallel
Strand 8
F
167 168parallel
Strand 9
F
182 185parallel
Strand 10
F
190 194anti-parallel
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There are 9 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
10 11first strand
Strand 2
G
28 29parallel
Strand 3
G
46 47parallel
Strand 4
G
64 67parallel
Strand 5
G
94 96parallel
Strand 6
G
119 120parallel
Strand 7
G
137 138parallel
Strand 8
G
155 156parallel
Strand 9
G
173 174parallel
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There are 8 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
16 17first strand
Strand 2
G
33 35parallel
Strand 3
G
50 53parallel
Strand 4
G
80 83parallel
Strand 5
G
105 108parallel
Strand 6
G
125 126parallel
Strand 7
G
143 144parallel
Strand 8
G
161 162parallel
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There are 10 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
22 23first strand
Strand 2
G
40 41parallel
Strand 3
G
58 59parallel
Strand 4
G
88 89parallel
Strand 5
G
113 114parallel
Strand 6
G
131 132parallel
Strand 7
G
149 150parallel
Strand 8
G
167 168parallel
Strand 9
G
182 185parallel
Strand 10
G
190 194anti-parallel
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