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


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 1SPI entry

There are 4 chains in PDB entry 1SPI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 6ALA 358
B
 LYS 11ALA 358
C
 LYS 11ALA 358
D
 LYS 11ALA 358
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 39 helices in PDB entry 1SPI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
23 30Right-handed alpha
Helix 2
2
A
40 59Right-handed alpha
Helix 3
3
A
88 95Right-handed alpha
Helix 4
4
A
133 136Right-handed alpha
Helix 5
5
A
239 241Right-handed 310
Helix 6
6
A
247 256Right-handed alpha
Helix 7
7
A
274 284Right-handed alpha
Helix 8
8
A
307 311Right-handed alpha
Helix 9
9
A
313 317Right-handed alpha
Helix 10
10
A
347 355Right-handed alpha
Helix 11
11
B
15 18Right-handed 310
Helix 12
12
B
23 32Right-handed alpha
Helix 13
13
B
39 58Right-handed alpha
Helix 14
14
B
86 91Right-handed alpha
Helix 15
15
B
93 96Right-handed alpha
Helix 16
16
B
239 241Right-handed 310
Helix 17
17
B
247 257Right-handed alpha
Helix 18
18
B
274 284Right-handed alpha
Helix 19
19
B
308 314Right-handed alpha
Helix 20
20
B
347 357Right-handed alpha
Helix 21
21
C
23 32Right-handed alpha
Helix 22
22
C
39 58Right-handed alpha
Helix 23
23
C
83 94Right-handed alpha
Helix 24
24
C
239 241Right-handed 310
Helix 25
25
C
247 257Right-handed alpha
Helix 26
26
C
274 283Right-handed alpha
Helix 27
27
C
306 316Right-handed alpha
Helix 28
28
C
328 330Right-handed 310
Helix 29
29
C
347 355Right-handed 310
Helix 30
30
D
23 33Right-handed alpha
Helix 31
31
D
38 58Right-handed alpha
Helix 32
32
D
85 96Right-handed alpha
Helix 33
33
D
135 138Right-handed alpha
Helix 34
34
D
182 184Right-handed 310
Helix 35
35
D
239 241Right-handed 310
Helix 36
36
D
247 257Right-handed alpha
Helix 37
37
D
274 284Right-handed alpha
Helix 38
38
D
307 316Right-handed alpha
Helix 39
39
D
347 355Right-handed alpha
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There are 10 sheets in PDB entry 1SPI. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J,

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
124 128first strand
Strand 2
A
145 149anti-parallel
Strand 3
A
185 194anti-parallel
Strand 4
A
196 203anti-parallel
Strand 5
A
206 213anti-parallel
Strand 6
A
218 224anti-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
287 290first strand
Strand 2
A
342 345anti-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
B
124 128first strand
Strand 2
B
143 149anti-parallel
Strand 3
B
185 192anti-parallel
Strand 4
B
199 202anti-parallel
Strand 5
B
207 213anti-parallel
Strand 6
B
218 221anti-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
B
320 322first strand
Strand 2
B
343 345anti-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
C
103 106first strand
Strand 2
C
124 127parallel
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There are 5 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
144 148first strand
Strand 2
C
187 193anti-parallel
Strand 3
C
197 202anti-parallel
Strand 4
C
208 213anti-parallel
Strand 5
C
218 224anti-parallel
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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
C
287 289first strand
Strand 2
C
343 345anti-parallel
Strand 3
C
320 322anti-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
D
124 128first strand
Strand 2
D
142 149anti-parallel
Strand 3
D
185 193anti-parallel
Strand 4
D
197 201anti-parallel
Strand 5
D
208 211anti-parallel
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There are 3 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
287 290first strand
Strand 2
D
342 345anti-parallel
Strand 3
D
320 322anti-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
D
207 209first strand
Strand 2
D
223 226anti-parallel
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