Analysis of interatomic Contacts of Structural Units in PDB entry:
4N9G


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 4N9G entry

There are 8 chains in PDB entry 4N9G (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 1CYS 216
B
 ASP 1CYS 214
C
 ARG 63LYS 97
D
 ASN 62GLU 96
E
 GLN 1CYS 216
F
 ASP 1CYS 214
H
 GLN 1CYS 216
L
 ASP 1GLN 160
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 40 helices in PDB entry 4N9G. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
63 65Right-handed 310
Helix 2
2
A
83 87Right-handed 310
Helix 3
3
A
156 158Right-handed 310
Helix 4
4
A
187 189Right-handed 310
Helix 5
5
A
201 204Right-handed 310
Helix 6
6
B
79 83Right-handed 310
Helix 7
7
B
121 126Right-handed alpha
Helix 8
8
B
183 188Right-handed alpha
Helix 9
9
C
64 73Right-handed alpha
Helix 10
10
C
77 97Right-handed alpha
Helix 11
11
D
63 74Right-handed alpha
Helix 12
12
D
77 96Right-handed alpha
Helix 13
13
E
61 65Right-handed 310
Helix 14
14
E
83 87Right-handed 310
Helix 15
15
E
156 158Right-handed 310
Helix 16
16
E
187 189Right-handed 310
Helix 17
17
F
79 83Right-handed 310
Helix 18
18
F
121 126Right-handed alpha
Helix 19
19
F
183 188Right-handed alpha
Helix 20
20
H
28 30Right-handed 310
Helix 21
21
H
63 65Right-handed 310
Helix 22
22
H
83 87Right-handed 310
Helix 23
23
H
156 158Right-handed 310
Helix 24
24
H
187 191Right-handed 310
Helix 25
25
H
201 204Right-handed 310
Helix 26
26
L
79 83Right-handed 310
Helix 27
27
L
121 126Right-handed alpha
Helix 28
28
L
183 188Right-handed alpha
Helix 29
29
M
28 30Right-handed 310
Helix 30
30
M
64 66Right-handed 310
Helix 31
31
M
87 91Right-handed 310
Helix 32
32
M
199 203Right-handed 310
Helix 33
33
M
213 216Right-handed 310
Helix 34
34
N
79 83Right-handed 310
Helix 35
35
N
121 126Right-handed alpha
Helix 36
36
N
183 188Right-handed alpha
Helix 37
37
Y
63 74Right-handed alpha
Helix 38
38
Y
77 96Right-handed alpha
Helix 39
39
Z
63 74Right-handed alpha
Helix 40
40
Z
77 96Right-handed alpha
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There are 42 sheets in PDB entry 4N9G. 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, S, T, U, V, W, X, Y, Z, AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN, AO, AP,

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
A
3 7first strand
Strand 2
A
18 25anti-parallel
Strand 3
A
74 79anti-parallel
Strand 4
A
67 71anti-parallel
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There are 6 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
11 12first strand
Strand 2
A
107 111parallel
Strand 3
A
88 97anti-parallel
Strand 4
A
32 40anti-parallel
Strand 5
A
44 52anti-parallel
Strand 6
A
57 59anti-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
A
11 12first strand
Strand 2
A
107 111parallel
Strand 3
A
88 97anti-parallel
Strand 4
A
102 103anti-parallel
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There are 4 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
120 124first strand
Strand 2
A
135 145anti-parallel
Strand 3
A
176 185anti-parallel
Strand 4
A
163 165anti-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
A
120 124first strand
Strand 2
A
135 145anti-parallel
Strand 3
A
176 185anti-parallel
Strand 4
A
169 170anti-parallel
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There are 3 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
151 154first strand
Strand 2
A
195 200anti-parallel
Strand 3
A
205 210anti-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
B
4 7first strand
Strand 2
B
19 25anti-parallel
Strand 3
B
70 75anti-parallel
Strand 4
B
62 67anti-parallel
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There are 5 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
10 13first strand
Strand 2
B
102 106parallel
Strand 3
B
85 90anti-parallel
Strand 4
B
33 38anti-parallel
Strand 5
B
45 48anti-parallel
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There are 4 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
10 13first strand
Strand 2
B
102 106parallel
Strand 3
B
85 90anti-parallel
Strand 4
B
97 98anti-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
114 118first strand
Strand 2
B
129 139anti-parallel
Strand 3
B
173 182anti-parallel
Strand 4
B
159 163anti-parallel
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There are 7 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
205 210first strand
Strand 2
B
191 197anti-parallel
Strand 3
B
145 150anti-parallel
Strand 4
B
153 156anti-parallel
Strand 5
H
205 210parallel
Strand 6
H
195 200anti-parallel
Strand 7
H
151 154anti-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
E
3 7first strand
Strand 2
E
18 25anti-parallel
Strand 3
E
74 79anti-parallel
Strand 4
E
67 71anti-parallel
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There are 6 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
11 12first strand
Strand 2
E
107 111parallel
Strand 3
E
88 97anti-parallel
Strand 4
E
32 40anti-parallel
Strand 5
E
44 52anti-parallel
Strand 6
E
57 59anti-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
E
11 12first strand
Strand 2
E
107 111parallel
Strand 3
E
88 97anti-parallel
Strand 4
E
102 103anti-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
E
120 124first strand
Strand 2
E
135 145anti-parallel
Strand 3
E
176 185anti-parallel
Strand 4
E
163 165anti-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
E
120 124first strand
Strand 2
E
135 145anti-parallel
Strand 3
E
176 185anti-parallel
Strand 4
E
169 170anti-parallel
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There are 7 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
151 154first strand
Strand 2
E
194 200anti-parallel
Strand 3
E
205 211anti-parallel
Strand 4
N
153 156parallel
Strand 5
N
145 150anti-parallel
Strand 6
N
191 197anti-parallel
Strand 7
N
205 210anti-parallel
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There are 4 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
4 7first strand
Strand 2
F
19 25anti-parallel
Strand 3
F
70 75anti-parallel
Strand 4
F
62 67anti-parallel
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There are 6 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
10 13first strand
Strand 2
F
102 106parallel
Strand 3
F
84 90anti-parallel
Strand 4
F
33 38anti-parallel
Strand 5
F
45 49anti-parallel
Strand 6
F
53 54anti-parallel
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There are 4 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
10 13first strand
Strand 2
F
102 106parallel
Strand 3
F
84 90anti-parallel
Strand 4
F
97 98anti-parallel
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There are 4 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
114 118first strand
Strand 2
F
129 139anti-parallel
Strand 3
F
173 182anti-parallel
Strand 4
F
159 163anti-parallel
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There are 4 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
153 155first strand
Strand 2
F
145 150anti-parallel
Strand 3
F
191 197anti-parallel
Strand 4
F
205 210anti-parallel
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There are 4 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
3 7first strand
Strand 2
H
18 25anti-parallel
Strand 3
H
74 79anti-parallel
Strand 4
H
67 70anti-parallel
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There are 6 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
11 12first strand
Strand 2
H
107 111parallel
Strand 3
H
88 97anti-parallel
Strand 4
H
32 40anti-parallel
Strand 5
H
44 52anti-parallel
Strand 6
H
57 59anti-parallel
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There are 4 strands in Y sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
11 12first strand
Strand 2
H
107 111parallel
Strand 3
H
88 97anti-parallel
Strand 4
H
102 103anti-parallel
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There are 4 strands in Z sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
120 124first strand
Strand 2
H
135 145anti-parallel
Strand 3
H
176 185anti-parallel
Strand 4
H
163 165anti-parallel
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There are 4 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
120 124first strand
Strand 2
H
135 145anti-parallel
Strand 3
H
176 185anti-parallel
Strand 4
H
169 170anti-parallel
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There are 4 strands in AB 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 6 strands in AC 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
45 49anti-parallel
Strand 6
L
53 54anti-parallel
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There are 4 strands in AD 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
97 98anti-parallel
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There are 4 strands in AE 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 139anti-parallel
Strand 3
L
173 182anti-parallel
Strand 4
L
159 163anti-parallel
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There are 4 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
153 154first strand
Strand 2
L
145 150anti-parallel
Strand 3
L
191 197anti-parallel
Strand 4
L
205 210anti-parallel
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There are 4 strands in AG sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
3 7first strand
Strand 2
M
18 25anti-parallel
Strand 3
M
78 83anti-parallel
Strand 4
M
68 72anti-parallel
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There are 6 strands in AH sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
11 12first strand
Strand 2
M
119 123parallel
Strand 3
M
92 101anti-parallel
Strand 4
M
32 40anti-parallel
Strand 5
M
44 52anti-parallel
Strand 6
M
58 60anti-parallel
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There are 4 strands in AI sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
11 12first strand
Strand 2
M
119 123parallel
Strand 3
M
92 101anti-parallel
Strand 4
M
114 115anti-parallel
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There are 4 strands in AJ sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
132 136first strand
Strand 2
M
147 157anti-parallel
Strand 3
M
188 197anti-parallel
Strand 4
M
175 177anti-parallel
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There are 4 strands in AK sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
132 136first strand
Strand 2
M
147 157anti-parallel
Strand 3
M
188 197anti-parallel
Strand 4
M
181 182anti-parallel
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There are 3 strands in AL sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
M
163 166first strand
Strand 2
M
207 212anti-parallel
Strand 3
M
217 222anti-parallel
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There are 4 strands in AM sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
4 7first strand
Strand 2
N
19 25anti-parallel
Strand 3
N
70 75anti-parallel
Strand 4
N
62 67anti-parallel
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There are 6 strands in AN sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
10 13first strand
Strand 2
N
102 106parallel
Strand 3
N
84 90anti-parallel
Strand 4
N
33 38anti-parallel
Strand 5
N
45 49anti-parallel
Strand 6
N
53 54anti-parallel
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There are 4 strands in AO sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
10 13first strand
Strand 2
N
102 106parallel
Strand 3
N
84 90anti-parallel
Strand 4
N
97 98anti-parallel
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There are 4 strands in AP sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
N
114 118first strand
Strand 2
N
129 139anti-parallel
Strand 3
N
173 182anti-parallel
Strand 4
N
159 163anti-parallel
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