Analysis of interatomic Contacts of Structural Units in PDB entry:
1K4C


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 1K4C entry

There are 3 chains in PDB entry 1K4C (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 1ASP 219
B
 ASP 1ASN 212
C
 SER 22HIS 124
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 1K4C. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
87 91Right-handed 310
Helix 2
2
A
161 163Right-handed 310
Helix 3
3
A
191 193Right-handed 310
Helix 4
4
A
205 208Right-handed 310
Helix 5
5
B
79 83Right-handed 310
Helix 6
6
B
121 126Right-handed alpha
Helix 7
7
B
183 188Right-handed alpha
Helix 8
8
C
23 52Right-handed alpha
Helix 9
9
C
61 74Right-handed alpha
Helix 10
10
C
85 122Right-handed alpha
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There are 11 sheets in PDB entry 1K4C. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K,

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
18 24anti-parallel
Strand 3
A
78 83anti-parallel
Strand 4
A
68 73anti-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
58 60first strand
Strand 2
A
46 51anti-parallel
Strand 3
A
33 39anti-parallel
Strand 4
A
92 99anti-parallel
Strand 5
A
105 108anti-parallel
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There are 6 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
58 60first strand
Strand 2
A
46 51anti-parallel
Strand 3
A
33 39anti-parallel
Strand 4
A
92 99anti-parallel
Strand 5
A
112 116anti-parallel
Strand 6
A
9 12parallel
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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
125 129first strand
Strand 2
A
140 150anti-parallel
Strand 3
A
179 189anti-parallel
Strand 4
A
168 170anti-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
125 129first strand
Strand 2
A
140 150anti-parallel
Strand 3
A
179 189anti-parallel
Strand 4
A
174 176anti-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
156 159first strand
Strand 2
A
199 204anti-parallel
Strand 3
A
209 214anti-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 5first 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
53 54first strand
Strand 2
B
45 49anti-parallel
Strand 3
B
33 38anti-parallel
Strand 4
B
85 90anti-parallel
Strand 5
B
97 98anti-parallel
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There are 6 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
53 54first strand
Strand 2
B
45 49anti-parallel
Strand 3
B
33 38anti-parallel
Strand 4
B
85 90anti-parallel
Strand 5
B
102 106anti-parallel
Strand 6
B
10 13parallel
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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 4 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
153 155first strand
Strand 2
B
144 150anti-parallel
Strand 3
B
191 198anti-parallel
Strand 4
B
205 210anti-parallel
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