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


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 1KTK entry

There are 6 chains in PDB entry 1KTK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 3LYS 208
B
 LYS 3GLU 207
C
 ASP 1LYS 208
D
 LYS 3LYS 208
E
 GLY 1ASP 246
F
 VAL 4GLU 240
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 21 helices in PDB entry 1KTK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
6 18Right-handed alpha
Helix 2
2
A
129 145Right-handed alpha
Helix 3
3
A
180 185Right-handed alpha
Helix 4
4
A
186 191Right-handed 310
Helix 5
5
B
5 14Right-handed alpha
Helix 6
6
B
128 145Right-handed alpha
Helix 7
7
B
180 186Right-handed alpha
Helix 8
8
B
187 189Right-handed 310
Helix 9
9
B
195 197Right-handed 310
Helix 10
10
C
11 18Right-handed alpha
Helix 11
11
C
41 46Right-handed alpha
Helix 12
12
C
56 61Right-handed alpha
Helix 13
13
C
129 145Right-handed alpha
Helix 14
14
C
180 185Right-handed alpha
Helix 15
15
C
186 189Right-handed 310
Helix 16
16
D
8 17Right-handed alpha
Helix 17
17
D
56 61Right-handed alpha
Helix 18
18
D
129 140Right-handed alpha
Helix 19
19
D
180 185Right-handed alpha
Helix 20
20
D
186 189Right-handed 310
Helix 21
21
D
197 199Right-handed 310
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There are 26 sheets in PDB entry 1KTK. 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,

There are 6 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
83 86first strand
Strand 2
A
50 54parallel
Strand 3
A
36 40anti-parallel
Strand 4
A
22 32anti-parallel
Strand 5
A
68 73anti-parallel
Strand 6
A
90 92anti-parallel
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There are 2 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
100 101first strand
Strand 2
A
121 122anti-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
104 108first strand
Strand 2
A
199 207parallel
Strand 3
A
155 162anti-parallel
Strand 4
A
168 171anti-parallel
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There are 2 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
126 128first strand
Strand 2
A
193 195anti-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
28 32first strand
Strand 2
B
36 40anti-parallel
Strand 3
B
50 54anti-parallel
Strand 4
B
83 86parallel
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There are 2 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
69 70first strand
Strand 2
B
91 92anti-parallel
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There are 2 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
100 101first strand
Strand 2
B
121 122anti-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
B
104 107first strand
Strand 2
B
199 206parallel
Strand 3
B
156 162anti-parallel
Strand 4
B
167 171anti-parallel
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There are 7 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
75 77first strand
Strand 2
C
83 86anti-parallel
Strand 3
C
50 54parallel
Strand 4
C
36 40anti-parallel
Strand 5
C
27 32anti-parallel
Strand 6
C
68 71anti-parallel
Strand 7
C
90 92anti-parallel
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There are 2 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
100 101first strand
Strand 2
C
121 122anti-parallel
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There are 5 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
114 115first strand
Strand 2
C
104 108anti-parallel
Strand 3
C
199 206parallel
Strand 4
C
157 162anti-parallel
Strand 5
C
168 171anti-parallel
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There are 2 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
126 128first strand
Strand 2
C
193 195anti-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
D
29 32first strand
Strand 2
D
37 40anti-parallel
Strand 3
D
50 53anti-parallel
Strand 4
D
83 86parallel
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There are 2 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
69 71first strand
Strand 2
D
90 92anti-parallel
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There are 2 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
100 101first strand
Strand 2
D
121 122anti-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
103 108first strand
Strand 2
D
201 207parallel
Strand 3
D
155 161anti-parallel
Strand 4
D
168 171anti-parallel
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There are 2 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
126 128first strand
Strand 2
D
193 195anti-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
E
4 6first strand
Strand 2
E
20 25anti-parallel
Strand 3
E
74 78anti-parallel
Strand 4
E
66 71anti-parallel
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There are 5 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
55 57first strand
Strand 2
E
44 49anti-parallel
Strand 3
E
32 36anti-parallel
Strand 4
E
89 91anti-parallel
Strand 5
E
112 113anti-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
E
126 130first strand
Strand 2
E
146 150anti-parallel
Strand 3
E
190 195anti-parallel
Strand 4
E
173 174anti-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
E
126 130first strand
Strand 2
E
146 150anti-parallel
Strand 3
E
190 195anti-parallel
Strand 4
E
179 180anti-parallel
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There are 2 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
142 143first strand
Strand 2
E
198 199anti-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
E
166 167first strand
Strand 2
E
161 163anti-parallel
Strand 3
E
209 214anti-parallel
Strand 4
E
237 242anti-parallel
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There are 2 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
5 6first strand
Strand 2
F
23 24anti-parallel
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There are 2 strands in Y sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
65 69first strand
Strand 2
F
75 79anti-parallel
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There are 2 strands in Z sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
149 150first strand
Strand 2
F
191 192anti-parallel
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