Analysis of interatomic Contacts of Structural Units in PDB entry:
4CH2


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 4CH2 entry

There are 10 chains in PDB entry 4CH2 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 285TYR 316
B
 ILE 321GLY 578
C
 GLU 290ASP 318
D
 ILE 321GLY 578
P
 ASP 274LEU 275
P
 ASP 277ASP 277
P
 PRO 280PRO 280
Q
 THR 273LEU 275
Q
 ASP 277ASP 277
Q
 PRO 280PRO 280
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 17 helices in PDB entry 4CH2. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
299 303Right-handed 310
Helix 2
2
A
308 316Right-handed alpha
Helix 3
3
B
361 364Right-handed 310
Helix 4
4
B
368 371Right-handed 310
Helix 5
5
B
375 377Right-handed 310
Helix 6
6
B
442 450Right-handed alpha
Helix 7
7
B
489 496Right-handed alpha
Helix 8
8
B
511 515Right-handed 310
Helix 9
9
B
566 577Right-handed alpha
Helix 10
10
C
299 303Right-handed 310
Helix 11
11
C
308 318Right-handed alpha
Helix 12
12
D
361 364Right-handed 310
Helix 13
13
D
368 371Right-handed 310
Helix 14
14
D
375 377Right-handed 310
Helix 15
15
D
442 450Right-handed alpha
Helix 16
16
D
489 496Right-handed alpha
Helix 17
17
D
566 578Right-handed alpha
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There are 6 sheets in PDB entry 4CH2. Click on sheet of interest to get list of strands forming it: BA, BB, BC, A, DB, C,

There are 7 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
325 326first strand
Strand 2
B
481 486anti-parallel
Strand 3
B
455 460anti-parallel
Strand 4
B
528 532anti-parallel
Strand 5
B
539 547anti-parallel
Strand 6
B
558 562anti-parallel
Strand 7
B
505 508anti-parallel
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There are 7 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
397 399first strand
Strand 2
B
379 383anti-parallel
Strand 3
B
335 340anti-parallel
Strand 4
B
345 352anti-parallel
Strand 5
B
357 360anti-parallel
Strand 6
B
421 425anti-parallel
Strand 7
B
401 406anti-parallel
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There are 2 strands in BC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
366 367first strand
Strand 2
B
372 373anti-parallel
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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
D
325 326first strand
Strand 2
D
481 486anti-parallel
Strand 3
D
455 460anti-parallel
Strand 4
D
528 532anti-parallel
Strand 5
D
539 547anti-parallel
Strand 6
D
558 562anti-parallel
Strand 7
D
505 508anti-parallel
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There are 7 strands in DB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
397 399first strand
Strand 2
D
379 383anti-parallel
Strand 3
D
335 340anti-parallel
Strand 4
D
345 352anti-parallel
Strand 5
D
357 360anti-parallel
Strand 6
D
421 425anti-parallel
Strand 7
D
401 406anti-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
D
366 367first strand
Strand 2
D
372 373anti-parallel
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