Analysis of interatomic Contacts of Structural Units in PDB entry:
3CT4


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 3CT4 entry

There are 3 chains in PDB entry 3CT4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLU 4TRP 331
B
 GLU 4TRP 331
C
 GLU 4TRP 331
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 33 helices in PDB entry 3CT4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
9 11Right-handed 310
Helix 2
2
A
12 25Right-handed alpha
Helix 3
3
A
32 35Right-handed 310
Helix 4
4
A
62 66Right-handed 310
Helix 5
5
A
84 96Right-handed alpha
Helix 6
6
A
108 125Right-handed alpha
Helix 7
7
A
154 168Right-handed alpha
Helix 8
8
A
171 184Right-handed alpha
Helix 9
9
A
232 249Right-handed alpha
Helix 10
10
A
267 284Right-handed alpha
Helix 11
11
A
315 323Right-handed alpha
Helix 12
12
B
9 11Right-handed 310
Helix 13
13
B
12 25Right-handed alpha
Helix 14
14
B
32 35Right-handed 310
Helix 15
15
B
62 66Right-handed 310
Helix 16
16
B
84 96Right-handed alpha
Helix 17
17
B
108 125Right-handed alpha
Helix 18
18
B
154 168Right-handed alpha
Helix 19
19
B
171 184Right-handed alpha
Helix 20
20
B
232 249Right-handed alpha
Helix 21
21
B
267 284Right-handed alpha
Helix 22
22
B
315 323Right-handed alpha
Helix 23
23
C
9 11Right-handed 310
Helix 24
24
C
12 25Right-handed alpha
Helix 25
25
C
32 35Right-handed 310
Helix 26
26
C
62 66Right-handed 310
Helix 27
27
C
84 96Right-handed alpha
Helix 28
28
C
108 125Right-handed alpha
Helix 29
29
C
154 168Right-handed alpha
Helix 30
30
C
171 185Right-handed alpha
Helix 31
31
C
232 249Right-handed alpha
Helix 32
32
C
267 284Right-handed alpha
Helix 33
33
C
315 323Right-handed alpha
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There are 6 sheets in PDB entry 3CT4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
28 30first strand
Strand 2
A
37 40anti-parallel
Strand 3
A
73 79anti-parallel
Strand 4
A
49 56parallel
Strand 5
A
101 106parallel
Strand 6
A
129 134parallel
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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
226 229first strand
Strand 2
A
212 215anti-parallel
Strand 3
A
186 192anti-parallel
Strand 4
A
305 312anti-parallel
Strand 5
A
255 262anti-parallel
Strand 6
A
288 295parallel
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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
B
28 30first strand
Strand 2
B
37 40anti-parallel
Strand 3
B
73 79anti-parallel
Strand 4
B
49 56parallel
Strand 5
B
101 106parallel
Strand 6
B
129 134parallel
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There are 6 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
226 229first strand
Strand 2
B
212 215anti-parallel
Strand 3
B
186 192anti-parallel
Strand 4
B
305 312anti-parallel
Strand 5
B
255 262anti-parallel
Strand 6
B
288 295parallel
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There are 6 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
28 30first strand
Strand 2
C
37 40anti-parallel
Strand 3
C
73 79anti-parallel
Strand 4
C
49 56parallel
Strand 5
C
101 106parallel
Strand 6
C
129 134parallel
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There are 6 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
226 229first strand
Strand 2
C
212 215anti-parallel
Strand 3
C
186 192anti-parallel
Strand 4
C
305 312anti-parallel
Strand 5
C
255 262anti-parallel
Strand 6
C
288 295parallel
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