Analysis of interatomic Contacts of Structural Units in PDB entry:
3SKG


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 3SKG entry

There are 4 chains in PDB entry 3SKG (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PHE -1TYR 384
B
 PHE -1TYR 384
D
 PHE -1TYR 384
E
 PHE -1TYR 384
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 47 helices in PDB entry 3SKG. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
53 57Right-handed 310
Helix 2
2
A
123 127Right-handed 310
Helix 3
3
A
135 144Right-handed alpha
Helix 4
4
A
162 169Right-handed alpha
Helix 5
5
A
180 182Right-handed 310
Helix 6
6
A
216 221Right-handed alpha
Helix 7
7
A
238 252Right-handed alpha
Helix 8
8
A
253 255Right-handed 310
Helix 9
9
A
258 263Right-handed alpha
Helix 10
10
A
276 280Right-handed 310
Helix 11
11
A
301 305Right-handed alpha
Helix 12
12
A
334 339Right-handed alpha
Helix 13
13
A
347 349Right-handed 310
Helix 14
14
B
-1 3Right-handed 310
Helix 15
15
B
53 57Right-handed 310
Helix 16
16
B
123 127Right-handed 310
Helix 17
17
B
135 144Right-handed alpha
Helix 18
18
B
162 169Right-handed alpha
Helix 19
19
B
180 182Right-handed 310
Helix 20
20
B
216 221Right-handed alpha
Helix 21
21
B
238 252Right-handed alpha
Helix 22
22
B
258 263Right-handed alpha
Helix 23
23
B
276 280Right-handed 310
Helix 24
24
B
301 305Right-handed alpha
Helix 25
25
B
334 339Right-handed alpha
Helix 26
26
B
347 349Right-handed 310
Helix 27
27
D
53 57Right-handed 310
Helix 28
28
D
123 127Right-handed 310
Helix 29
29
D
135 143Right-handed alpha
Helix 30
30
D
162 169Right-handed alpha
Helix 31
31
D
180 182Right-handed 310
Helix 32
32
D
216 221Right-handed alpha
Helix 33
33
D
238 252Right-handed alpha
Helix 34
34
D
276 280Right-handed 310
Helix 35
35
D
301 305Right-handed alpha
Helix 36
36
D
335 339Right-handed alpha
Helix 37
37
D
347 349Right-handed 310
Helix 38
38
E
53 57Right-handed 310
Helix 39
39
E
123 127Right-handed 310
Helix 40
40
E
135 144Right-handed alpha
Helix 41
41
E
162 169Right-handed alpha
Helix 42
42
E
180 182Right-handed 310
Helix 43
43
E
216 222Right-handed 310
Helix 44
44
E
238 252Right-handed alpha
Helix 45
45
E
276 280Right-handed 310
Helix 46
46
E
301 305Right-handed alpha
Helix 47
47
E
334 339Right-handed alpha
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There are 27 sheets in PDB entry 3SKG. 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,

There are 8 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
6 9first strand
Strand 2
A
13 20anti-parallel
Strand 3
A
25 32anti-parallel
Strand 4
A
117 120parallel
Strand 5
A
38 41anti-parallel
Strand 6
A
95 106parallel
Strand 7
A
75 86anti-parallel
Strand 8
A
61 70anti-parallel
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There are 4 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
6 9first strand
Strand 2
A
13 20anti-parallel
Strand 3
A
75 86anti-parallel
Strand 4
A
61 70anti-parallel
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There are 5 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
172 176first strand
Strand 2
A
150 154anti-parallel
Strand 3
A
341 346anti-parallel
Strand 4
A
351 357anti-parallel
Strand 5
A
184 192anti-parallel
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There are 5 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
211 212first strand
Strand 2
A
203 208anti-parallel
Strand 3
A
283 288anti-parallel
Strand 4
A
295 300anti-parallel
Strand 5
A
369 374anti-parallel
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There are 2 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
225 227first strand
Strand 2
A
331 333parallel
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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
A
234 237first strand
Strand 2
A
324 327parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
268 270first strand
Strand 2
A
318 322anti-parallel
Strand 3
A
306 308anti-parallel
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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
B
6 9first strand
Strand 2
B
13 20anti-parallel
Strand 3
B
25 32anti-parallel
Strand 4
B
117 120parallel
Strand 5
B
38 41anti-parallel
Strand 6
B
95 106parallel
Strand 7
B
75 86anti-parallel
Strand 8
B
61 70anti-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
6 9first strand
Strand 2
B
13 20anti-parallel
Strand 3
B
75 86anti-parallel
Strand 4
B
61 70anti-parallel
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There are 5 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
172 176first strand
Strand 2
B
150 154anti-parallel
Strand 3
B
341 346anti-parallel
Strand 4
B
351 357anti-parallel
Strand 5
B
184 192anti-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
B
211 212first strand
Strand 2
B
203 208anti-parallel
Strand 3
B
283 288anti-parallel
Strand 4
B
295 300anti-parallel
Strand 5
B
369 374anti-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
B
225 227first strand
Strand 2
B
331 333parallel
Strand 3
B
234 237anti-parallel
Strand 4
B
324 327parallel
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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
B
268 270first strand
Strand 2
B
318 322anti-parallel
Strand 3
B
306 308anti-parallel
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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
D
6 9first strand
Strand 2
D
13 20anti-parallel
Strand 3
D
25 32anti-parallel
Strand 4
D
117 120parallel
Strand 5
D
39 41anti-parallel
Strand 6
D
100 106parallel
Strand 7
D
75 86anti-parallel
Strand 8
D
61 70anti-parallel
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There are 3 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
61 70first strand
Strand 2
D
75 86anti-parallel
Strand 3
D
94 98anti-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
94 98first strand
Strand 2
D
75 86anti-parallel
Strand 3
D
13 20anti-parallel
Strand 4
D
6 9anti-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
172 176first strand
Strand 2
D
150 154anti-parallel
Strand 3
D
341 346anti-parallel
Strand 4
D
351 357anti-parallel
Strand 5
D
184 192anti-parallel
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There are 5 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
211 212first strand
Strand 2
D
203 208anti-parallel
Strand 3
D
283 288anti-parallel
Strand 4
D
295 300anti-parallel
Strand 5
D
369 374anti-parallel
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There are 2 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
225 228first strand
Strand 2
D
331 334parallel
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There are 2 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
234 237first strand
Strand 2
D
324 327parallel
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There are 3 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
268 270first strand
Strand 2
D
318 322anti-parallel
Strand 3
D
306 309anti-parallel
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There are 8 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
6 9first strand
Strand 2
E
13 20anti-parallel
Strand 3
E
25 32anti-parallel
Strand 4
E
117 120parallel
Strand 5
E
39 41anti-parallel
Strand 6
E
94 106parallel
Strand 7
E
75 86anti-parallel
Strand 8
E
61 70anti-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
6 9first strand
Strand 2
E
13 20anti-parallel
Strand 3
E
75 86anti-parallel
Strand 4
E
61 70anti-parallel
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There are 5 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
172 176first strand
Strand 2
E
149 154anti-parallel
Strand 3
E
341 346anti-parallel
Strand 4
E
351 357anti-parallel
Strand 5
E
184 192anti-parallel
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There are 5 strands in Y sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
211 212first strand
Strand 2
E
203 208anti-parallel
Strand 3
E
283 288anti-parallel
Strand 4
E
295 300anti-parallel
Strand 5
E
369 374anti-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
E
225 227first strand
Strand 2
E
331 333parallel
Strand 3
E
234 237anti-parallel
Strand 4
E
324 327parallel
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There are 3 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
268 270first strand
Strand 2
E
318 322anti-parallel
Strand 3
E
306 309anti-parallel
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