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


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 1CAX entry

There are 6 chains in PDB entry 1CAX (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 44LYS 224
B
 THR 241ARG 424
C
 ALA 44LYS 224
D
 THR 241ARG 424
E
 ALA 44LYS 224
F
 THR 241ARG 424
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 26 helices in PDB entry 1CAX. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
80 84Right-handed 310
Helix 2
2
A
185 189Right-handed 310
Helix 3
3
A
191 200Right-handed alpha
Helix 4
4
A
202 211Right-handed alpha
Helix 5
5
B
273 278Right-handed alpha
Helix 6
6
B
386 390Right-handed 310
Helix 7
7
B
391 399Right-handed alpha
Helix 8
8
B
402 411Right-handed alpha
Helix 9
9
C
72 76Right-handed 310
Helix 10
10
C
80 84Right-handed 310
Helix 11
11
C
185 189Right-handed 310
Helix 12
12
C
191 200Right-handed alpha
Helix 13
13
C
202 207Right-handed alpha
Helix 14
14
C
208 210Right-handed 310
Helix 15
15
D
386 389Right-handed 310
Helix 16
16
D
391 399Right-handed alpha
Helix 17
17
D
402 410Right-handed alpha
Helix 18
18
E
77 81Right-handed 310
Helix 19
19
E
80 84Right-handed 310
Helix 20
20
E
185 189Right-handed 310
Helix 21
21
E
191 200Right-handed alpha
Helix 22
22
E
202 207Right-handed alpha
Helix 23
23
F
273 280Right-handed alpha
Helix 24
24
F
386 389Right-handed 310
Helix 25
25
F
391 399Right-handed alpha
Helix 26
26
F
402 413Right-handed alpha
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There are 17 sheets in PDB entry 1CAX. 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,

There are 7 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
52 53first strand
Strand 2
B
345 348anti-parallel
Strand 3
B
303 310anti-parallel
Strand 4
B
362 369anti-parallel
Strand 5
B
281 288anti-parallel
Strand 6
B
263 268anti-parallel
Strand 7
B
258 260anti-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
137 140first strand
Strand 2
A
107 114anti-parallel
Strand 3
A
157 164anti-parallel
Strand 4
A
86 87anti-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
137 140first strand
Strand 2
A
107 114anti-parallel
Strand 3
A
157 164anti-parallel
Strand 4
A
89 93anti-parallel
Strand 5
A
65 69anti-parallel
Strand 6
A
58 62anti-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
126 133first strand
Strand 2
A
116 123anti-parallel
Strand 3
A
146 150anti-parallel
Strand 4
A
97 104anti-parallel
Strand 5
A
174 176anti-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
A
126 133first strand
Strand 2
A
116 123anti-parallel
Strand 3
A
146 150anti-parallel
Strand 4
A
97 104anti-parallel
Strand 5
A
219 220anti-parallel
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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
B
333 340first strand
Strand 2
B
313 320anti-parallel
Strand 3
B
353 358anti-parallel
Strand 4
B
292 299anti-parallel
Strand 5
B
376 378anti-parallel
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There are 5 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
333 340first strand
Strand 2
B
313 320anti-parallel
Strand 3
B
353 358anti-parallel
Strand 4
B
292 299anti-parallel
Strand 5
B
418 420anti-parallel
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There are 6 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
56 58first strand
Strand 2
C
68 70anti-parallel
Strand 3
C
86 93anti-parallel
Strand 4
C
157 164anti-parallel
Strand 5
C
107 114anti-parallel
Strand 6
C
137 140anti-parallel
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There are 5 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
126 130first strand
Strand 2
C
118 123anti-parallel
Strand 3
C
146 150anti-parallel
Strand 4
C
97 104anti-parallel
Strand 5
C
174 176anti-parallel
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There are 6 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
56 62first strand
Strand 2
E
65 70anti-parallel
Strand 3
E
86 93anti-parallel
Strand 4
E
157 164anti-parallel
Strand 5
E
107 114anti-parallel
Strand 6
E
137 140anti-parallel
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There are 2 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
97 99first strand
Strand 2
E
219 221anti-parallel
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There are 5 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
127 132first strand
Strand 2
E
117 122anti-parallel
Strand 3
E
145 149anti-parallel
Strand 4
E
102 104anti-parallel
Strand 5
E
174 176anti-parallel
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There are 6 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
258 259first strand
Strand 2
F
263 265anti-parallel
Strand 3
F
281 288anti-parallel
Strand 4
F
362 369anti-parallel
Strand 5
F
303 310anti-parallel
Strand 6
F
345 348anti-parallel
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There are 3 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
354 357first strand
Strand 2
F
292 299anti-parallel
Strand 3
F
376 378anti-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
F
354 357first strand
Strand 2
F
292 299anti-parallel
Strand 3
F
418 420anti-parallel
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There are 2 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
313 314first strand
Strand 2
F
339 340anti-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
F
317 320first strand
Strand 2
F
333 336anti-parallel
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