Analysis of interatomic Contacts of Structural Units in PDB entry:
1FN4


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 1FN4 entry

There are 4 chains in PDB entry 1FN4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 1CYS 211
B
 GLN 1CYS 208
C
 ASP 1CYS 211
D
 GLN 1CYS 208
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 10 helices in PDB entry 1FN4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
118 123Right-handed alpha
Helix 2
2
B
60 65Right-handed alpha
Helix 3
3
B
73 75Right-handed 310
Helix 4
4
B
147 151Right-handed 310
Helix 5
5
C
118 123Right-handed alpha
Helix 6
6
C
180 185Right-handed alpha
Helix 7
7
D
60 65Right-handed alpha
Helix 8
8
D
147 151Right-handed 310
Helix 9
9
D
178 182Right-handed alpha
Helix 10
10
D
193 196Right-handed 310
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There are 18 sheets in PDB entry 1FN4. 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
A
4 5first strand
Strand 2
A
19 25anti-parallel
Strand 3
A
70 75anti-parallel
Strand 4
A
66 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
A
10 12first strand
Strand 2
A
102 105parallel
Strand 3
A
85 90anti-parallel
Strand 4
A
33 37anti-parallel
Strand 5
A
45 48anti-parallel
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There are 3 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
126 131first strand
Strand 2
A
173 179anti-parallel
Strand 3
A
156 159anti-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
A
144 145first strand
Strand 2
A
191 192anti-parallel
Strand 3
A
203 204anti-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
B
5 7first strand
Strand 2
B
21 23anti-parallel
Strand 3
B
77 79anti-parallel
Strand 4
B
70 71anti-parallel
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There are 1 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
17 18first strand
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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
57 59first strand
Strand 2
B
46 51anti-parallel
Strand 3
B
33 40anti-parallel
Strand 4
B
88 95anti-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
B
113 117first strand
Strand 2
B
131 136anti-parallel
Strand 3
B
172 174anti-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
B
162 163first strand
Strand 2
B
168 169anti-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
C
4 5first strand
Strand 2
C
18 25anti-parallel
Strand 3
C
70 76anti-parallel
Strand 4
C
64 67anti-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
C
10 12first strand
Strand 2
C
102 105parallel
Strand 3
C
84 90anti-parallel
Strand 4
C
33 37anti-parallel
Strand 5
C
45 49anti-parallel
Strand 6
C
53 54anti-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
C
112 115first strand
Strand 2
C
126 136anti-parallel
Strand 3
C
170 179anti-parallel
Strand 4
C
156 158anti-parallel
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There are 3 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
144 147first strand
Strand 2
C
189 192anti-parallel
Strand 3
C
203 204anti-parallel
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There are 3 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
3 7first strand
Strand 2
D
17 25anti-parallel
Strand 3
D
67 72anti-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
57 59first strand
Strand 2
D
46 51anti-parallel
Strand 3
D
33 38anti-parallel
Strand 4
D
90 95anti-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
157 158first strand
Strand 2
D
172 177anti-parallel
Strand 3
D
128 138anti-parallel
Strand 4
D
113 117anti-parallel
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There are 5 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
157 158first strand
Strand 2
D
172 177anti-parallel
Strand 3
D
128 138anti-parallel
Strand 4
D
168 170anti-parallel
Strand 5
D
162 163anti-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
D
187 189first strand
Strand 2
D
200 202anti-parallel
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