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


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 3SSA entry

There are 2 chains in PDB entry 3SSA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 12HIS 456
B
 ALA 12LYS 460
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 37 helices in PDB entry 3SSA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
81 85Right-handed 310
Helix 2
2
A
131 136Right-handed alpha
Helix 3
3
A
155 167Right-handed alpha
Helix 4
4
A
186 201Right-handed alpha
Helix 5
5
A
202 204Right-handed 310
Helix 6
6
A
216 239Right-handed alpha
Helix 7
7
A
248 257Right-handed alpha
Helix 8
8
A
258 263Right-handed 310
Helix 9
9
A
274 285Right-handed alpha
Helix 10
10
A
316 321Right-handed 310
Helix 11
11
A
329 335Right-handed alpha
Helix 12
12
A
350 355Right-handed 310
Helix 13
13
A
363 389Right-handed alpha
Helix 14
14
A
390 393Right-handed 310
Helix 15
15
A
394 411Right-handed alpha
Helix 16
16
A
421 434Right-handed alpha
Helix 17
17
A
435 436Right-handed 310
Helix 18
18
A
437 441Right-handed 310
Helix 19
19
A
445 453Right-handed alpha
Helix 20
20
B
81 85Right-handed 310
Helix 21
21
B
131 136Right-handed alpha
Helix 22
22
B
155 167Right-handed alpha
Helix 23
23
B
186 201Right-handed alpha
Helix 24
24
B
202 204Right-handed 310
Helix 25
25
B
216 239Right-handed alpha
Helix 26
26
B
248 259Right-handed alpha
Helix 27
27
B
275 285Right-handed alpha
Helix 28
28
B
317 321Right-handed 310
Helix 29
29
B
329 335Right-handed alpha
Helix 30
30
B
350 355Right-handed 310
Helix 31
31
B
363 389Right-handed alpha
Helix 32
32
B
390 393Right-handed 310
Helix 33
33
B
394 411Right-handed alpha
Helix 34
34
B
421 434Right-handed alpha
Helix 35
35
B
435 436Right-handed 310
Helix 36
36
B
437 441Right-handed 310
Helix 37
37
B
445 453Right-handed alpha
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There are 9 sheets in PDB entry 3SSA. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

There are 5 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
15 19first strand
Strand 2
A
51 56anti-parallel
Strand 3
A
39 47anti-parallel
Strand 4
A
29 33anti-parallel
Strand 5
A
71 74parallel
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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
77 80first strand
Strand 2
A
106 109anti-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
87 90first strand
Strand 2
A
206 212parallel
Strand 3
A
176 185parallel
Strand 4
A
241 247parallel
Strand 5
A
296 305parallel
Strand 6
A
288 289anti-parallel
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There are 8 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
87 90first strand
Strand 2
A
206 212parallel
Strand 3
A
176 185parallel
Strand 4
A
241 247parallel
Strand 5
A
296 305parallel
Strand 6
A
148 151parallel
Strand 7
A
324 328parallel
Strand 8
A
341 348anti-parallel
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There are 5 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
15 19first strand
Strand 2
B
51 56anti-parallel
Strand 3
B
39 47anti-parallel
Strand 4
B
29 33anti-parallel
Strand 5
B
72 74parallel
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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
77 80first strand
Strand 2
B
106 109anti-parallel
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There are 6 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
87 90first strand
Strand 2
B
206 212parallel
Strand 3
B
176 185parallel
Strand 4
B
241 247parallel
Strand 5
B
296 305parallel
Strand 6
B
288 289anti-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
87 90first strand
Strand 2
B
206 212parallel
Strand 3
B
176 185parallel
Strand 4
B
241 247parallel
Strand 5
B
296 305parallel
Strand 6
B
148 151parallel
Strand 7
B
324 327parallel
Strand 8
B
347 348anti-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
124 126first strand
Strand 2
B
141 142anti-parallel
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