Analysis of interatomic Contacts of Structural Units in PDB entry:
4AP1


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 4AP1 entry

There is 1 chain in PDB entry 4AP1 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 20GLY 549
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 23 helices in PDB entry 4AP1. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
30 43Right-handed alpha
Helix 2
2
A
58 63Right-handed alpha
Helix 3
3
A
82 89Right-handed alpha
Helix 4
4
A
97 112Right-handed alpha
Helix 5
5
A
114 116Right-handed 310
Helix 6
6
A
168 172Right-handed 310
Helix 7
7
A
180 182Right-handed 310
Helix 8
8
A
200 214Right-handed alpha
Helix 9
9
A
236 246Right-handed alpha
Helix 10
10
A
246 257Right-handed alpha
Helix 11
11
A
274 289Right-handed alpha
Helix 12
12
A
291 296Right-handed 310
Helix 13
13
A
297 302Right-handed 310
Helix 14
14
A
303 322Right-handed alpha
Helix 15
15
A
324 331Right-handed alpha
Helix 16
16
A
350 355Right-handed 310
Helix 17
17
A
400 404Right-handed 310
Helix 18
18
A
408 412Right-handed 310
Helix 19
19
A
413 418Right-handed alpha
Helix 20
20
A
445 449Right-handed 310
Helix 21
21
A
450 472Right-handed alpha
Helix 22
22
A
480 496Right-handed alpha
Helix 23
23
A
525 539Right-handed alpha
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There are 8 sheets in PDB entry 4AP1. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH,

There are 5 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
118 119first strand
Strand 2
A
47 50parallel
Strand 3
A
21 27parallel
Strand 4
A
145 153parallel
Strand 5
A
436 438anti-parallel
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There are 7 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
118 119first strand
Strand 2
A
47 50parallel
Strand 3
A
21 27parallel
Strand 4
A
145 153parallel
Strand 5
A
135 140anti-parallel
Strand 6
A
124 130anti-parallel
Strand 7
A
405 407parallel
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There are 2 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
436 438first strand
Strand 2
A
145 153anti-parallel
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There are 2 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
159 160first strand
Strand 2
A
394 395anti-parallel
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There are 5 strands in AE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
175 178first strand
Strand 2
A
387 390parallel
Strand 3
A
193 197parallel
Strand 4
A
216 221parallel
Strand 5
A
358 362parallel
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There are 2 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
227 229first strand
Strand 2
A
344 346parallel
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There are 3 strands in AG sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
368 372first strand
Strand 2
A
375 378anti-parallel
Strand 3
A
382 384anti-parallel
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There are 2 strands in AH sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
476 479first strand
Strand 2
A
544 547anti-parallel
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