Analysis of interatomic Contacts of Structural Units in PDB entry:
2IWK


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 2IWK entry

There are 2 chains in PDB entry 2IWK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 8PRO 597
B
 ALA 8PRO 597
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 27 helices in PDB entry 2IWK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
60 69Right-handed alpha
Helix 2
2
A
72 82Right-handed alpha
Helix 3
3
A
174 178Right-handed 310
Helix 4
4
A
226 231Right-handed alpha
Helix 5
5
A
243 252Right-handed alpha
Helix 6
6
A
267 271Right-handed 310
Helix 7
7
A
313 320Right-handed alpha
Helix 8
8
A
323 326Right-handed 310
Helix 9
9
A
364 372Right-handed alpha
Helix 10
10
A
458 462Right-handed 310
Helix 11
11
A
473 475Right-handed 310
Helix 12
12
A
476 486Right-handed alpha
Helix 13
13
A
585 588Right-handed 310
Helix 14
14
B
60 69Right-handed alpha
Helix 15
15
B
72 82Right-handed alpha
Helix 16
16
B
174 178Right-handed 310
Helix 17
17
B
226 231Right-handed alpha
Helix 18
18
B
243 253Right-handed alpha
Helix 19
19
B
267 271Right-handed 310
Helix 20
20
B
313 320Right-handed alpha
Helix 21
21
B
323 326Right-handed 310
Helix 22
22
B
364 373Right-handed alpha
Helix 23
23
B
414 418Right-handed 310
Helix 24
24
B
458 462Right-handed 310
Helix 25
25
B
473 475Right-handed 310
Helix 26
26
B
476 486Right-handed alpha
Helix 27
27
B
585 588Right-handed 310
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There are 20 sheets in PDB entry 2IWK. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ,

There are 4 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
41 47first strand
Strand 2
A
31 37anti-parallel
Strand 3
A
20 24anti-parallel
Strand 4
A
454 457anti-parallel
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There are 4 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
95 100first strand
Strand 2
A
103 113anti-parallel
Strand 3
A
118 123anti-parallel
Strand 4
A
128 134anti-parallel
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There are 6 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
141 146first strand
Strand 2
A
154 159anti-parallel
Strand 3
A
180 186anti-parallel
Strand 4
A
191 198anti-parallel
Strand 5
A
261 265parallel
Strand 6
A
256 258anti-parallel
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There are 4 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
205 207first strand
Strand 2
A
213 218anti-parallel
Strand 3
A
236 242anti-parallel
Strand 4
A
275 280anti-parallel
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There are 4 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
287 289first strand
Strand 2
A
295 299anti-parallel
Strand 3
A
306 310anti-parallel
Strand 4
A
328 330anti-parallel
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There are 4 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
338 343first strand
Strand 2
A
348 353anti-parallel
Strand 3
A
358 363anti-parallel
Strand 4
A
379 384anti-parallel
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There are 4 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
389 394first strand
Strand 2
A
406 411anti-parallel
Strand 3
A
427 433anti-parallel
Strand 4
A
440 447anti-parallel
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There are 4 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
497 500first strand
Strand 2
A
503 511anti-parallel
Strand 3
A
527 534parallel
Strand 4
A
561 567anti-parallel
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There are 3 strands in AI sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
497 500first strand
Strand 2
A
503 511anti-parallel
Strand 3
A
514 515anti-parallel
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There are 5 strands in AJ sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
519 523first strand
Strand 2
A
590 596parallel
Strand 3
A
572 577anti-parallel
Strand 4
A
543 547anti-parallel
Strand 5
A
552 556anti-parallel
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There are 4 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
42 47first strand
Strand 2
B
31 37anti-parallel
Strand 3
B
20 24anti-parallel
Strand 4
B
454 457anti-parallel
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There are 4 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
95 100first strand
Strand 2
B
103 113anti-parallel
Strand 3
B
118 123anti-parallel
Strand 4
B
128 134anti-parallel
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There are 6 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
141 146first strand
Strand 2
B
154 159anti-parallel
Strand 3
B
180 186anti-parallel
Strand 4
B
191 198anti-parallel
Strand 5
B
261 265parallel
Strand 6
B
256 258anti-parallel
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There are 4 strands in BD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
205 207first strand
Strand 2
B
213 218anti-parallel
Strand 3
B
236 242anti-parallel
Strand 4
B
275 280anti-parallel
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There are 4 strands in BE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
287 289first strand
Strand 2
B
295 299anti-parallel
Strand 3
B
306 310anti-parallel
Strand 4
B
328 330anti-parallel
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There are 4 strands in BF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
338 343first strand
Strand 2
B
348 353anti-parallel
Strand 3
B
358 363anti-parallel
Strand 4
B
379 384anti-parallel
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There are 4 strands in BG sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
389 394first strand
Strand 2
B
406 411anti-parallel
Strand 3
B
427 433anti-parallel
Strand 4
B
440 447anti-parallel
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There are 4 strands in BH sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
497 500first strand
Strand 2
B
503 511anti-parallel
Strand 3
B
527 534parallel
Strand 4
B
561 567anti-parallel
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There are 3 strands in BI sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
497 500first strand
Strand 2
B
503 511anti-parallel
Strand 3
B
514 515anti-parallel
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There are 5 strands in BJ sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
519 523first strand
Strand 2
B
590 596parallel
Strand 3
B
572 577anti-parallel
Strand 4
B
543 547anti-parallel
Strand 5
B
552 556anti-parallel
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