Analysis of interatomic Contacts of Structural Units in PDB entry:
1C4A


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 1C4A entry

There is 1 chain in PDB entry 1C4A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1LYS 574
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 34 helices in PDB entry 1C4A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
18 26Right-handed alpha
Helix 2
2
A
77 91Right-handed alpha
Helix 3
3
A
103 107Right-handed 310
Helix 4
4
A
110 117Right-handed alpha
Helix 5
5
A
151 161Right-handed alpha
Helix 6
6
A
179 183Right-handed 310
Helix 7
7
A
184 188Right-handed 310
Helix 8
8
A
194 200Right-handed alpha
Helix 9
9
A
210 220Right-handed alpha
Helix 10
10
A
231 236Right-handed 310
Helix 11
11
A
236 242Right-handed 310
Helix 12
12
A
249 260Right-handed alpha
Helix 13
13
A
268 288Right-handed alpha
Helix 14
14
A
300 311Right-handed alpha
Helix 15
15
A
312 315Right-handed 310
Helix 16
16
A
323 333Right-handed alpha
Helix 17
17
A
334 339Right-handed alpha
Helix 18
18
A
343 345Right-handed 310
Helix 19
19
A
356 363Right-handed alpha
Helix 20
20
A
381 391Right-handed alpha
Helix 21
21
A
394 398Right-handed 310
Helix 22
22
A
404 408Right-handed 310
Helix 23
23
A
411 416Right-handed alpha
Helix 24
24
A
417 419Right-handed 310
Helix 25
25
A
421 437Right-handed alpha
Helix 26
26
A
445 449Right-handed 310
Helix 27
27
A
473 483Right-handed alpha
Helix 28
28
A
484 488Right-handed 310
Helix 29
29
A
502 506Right-handed 310
Helix 30
30
A
513 520Right-handed alpha
Helix 31
31
A
521 537Right-handed alpha
Helix 32
32
A
541 544Right-handed 310
Helix 33
33
A
545 555Right-handed alpha
Helix 34
34
A
561 568Right-handed alpha
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There are 6 sheets in PDB entry 1C4A. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
9 13first strand
Strand 2
A
2 6anti-parallel
Strand 3
A
70 73parallel
Strand 4
A
50 53anti-parallel
Strand 5
A
57 60anti-parallel
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There are 3 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
133 134first strand
Strand 2
A
140 143anti-parallel
Strand 3
A
205 207anti-parallel
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There are 2 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
167 171first strand
Strand 2
A
174 178anti-parallel
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There are 4 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
264 267first strand
Strand 2
A
224 229parallel
Strand 3
A
347 353parallel
Strand 4
A
377 380parallel
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There are 4 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
295 296first strand
Strand 2
A
493 497parallel
Strand 3
A
464 472parallel
Strand 4
A
454 461anti-parallel
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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
368 369first strand
Strand 2
A
372 373anti-parallel
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