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


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 4BTW entry

There are 4 chains in PDB entry 4BTW (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 52ASN 470
A
 ASP 472HIS 762
B
 SER 57ASN 470
B
 ASP 472SER 761
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 37 helices in PDB entry 4BTW. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
64 79Right-handed alpha
Helix 2
2
A
85 89Right-handed 310
Helix 3
3
A
105 115Right-handed alpha
Helix 4
4
A
155 161Right-handed alpha
Helix 5
5
A
165 169Right-handed 310
Helix 6
6
A
172 187Right-handed alpha
Helix 7
7
A
188 190Right-handed 310
Helix 8
8
A
191 200Right-handed alpha
Helix 9
9
A
237 240Right-handed 310
Helix 10
10
A
255 259Right-handed 310
Helix 11
11
A
273 283Right-handed alpha
Helix 12
12
A
376 382Right-handed alpha
Helix 13
13
A
387 389Right-handed 310
Helix 14
14
A
503 506Right-handed 310
Helix 15
15
A
572 576Right-handed 310
Helix 16
16
A
619 628Right-handed 310
Helix 17
17
A
659 664Right-handed 310
Helix 18
18
A
687 691Right-handed 310
Helix 19
19
A
714 719Right-handed 310
Helix 20
20
A
737 739Right-handed 310
Helix 21
21
A
740 745Right-handed alpha
Helix 22
22
B
64 78Right-handed alpha
Helix 23
23
B
85 89Right-handed 310
Helix 24
24
B
105 115Right-handed alpha
Helix 25
25
B
155 160Right-handed alpha
Helix 26
26
B
172 185Right-handed alpha
Helix 27
27
B
188 190Right-handed 310
Helix 28
28
B
191 200Right-handed alpha
Helix 29
29
B
255 259Right-handed 310
Helix 30
30
B
273 283Right-handed alpha
Helix 31
31
B
376 382Right-handed alpha
Helix 32
32
B
387 389Right-handed 310
Helix 33
33
B
621 626Right-handed 310
Helix 34
34
B
646 650Right-handed 310
Helix 35
35
B
659 664Right-handed 310
Helix 36
36
B
687 691Right-handed 310
Helix 37
37
B
714 719Right-handed 310
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There are 34 sheets in PDB entry 4BTW. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN, AO, AP, AQ, AR, AS, BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL, BM, BN, BO,

There are 2 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
83 84first strand
Strand 2
A
94 102anti-parallel
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There are 14 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
151 154first strand
Strand 2
A
137 144anti-parallel
Strand 3
A
123 130anti-parallel
Strand 4
A
94 102anti-parallel
Strand 5
A
409 417anti-parallel
Strand 6
A
423 445anti-parallel
Strand 7
A
451 468anti-parallel
Strand 8
A
471 479anti-parallel
Strand 9
A
485 489anti-parallel
Strand 10
A
701 708anti-parallel
Strand 11
A
600 607anti-parallel
Strand 12
A
586 594anti-parallel
Strand 13
A
537 550anti-parallel
Strand 14
A
558 569anti-parallel
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There are 5 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
151 154first strand
Strand 2
A
137 144anti-parallel
Strand 3
A
123 130anti-parallel
Strand 4
A
94 102anti-parallel
Strand 5
A
83 84anti-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
395 396first strand
Strand 2
A
451 468anti-parallel
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There are 8 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
151 154first strand
Strand 2
A
137 144anti-parallel
Strand 3
A
123 130anti-parallel
Strand 4
A
94 102anti-parallel
Strand 5
A
409 417anti-parallel
Strand 6
A
423 445anti-parallel
Strand 7
A
451 468anti-parallel
Strand 8
A
723 726anti-parallel
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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
492 493first strand
Strand 2
A
471 479parallel
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There are 8 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
151 154first strand
Strand 2
A
137 144anti-parallel
Strand 3
A
123 130anti-parallel
Strand 4
A
94 102anti-parallel
Strand 5
A
409 417anti-parallel
Strand 6
A
423 445anti-parallel
Strand 7
A
451 468anti-parallel
Strand 8
A
395 396anti-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
558 569first strand
Strand 2
A
537 550anti-parallel
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There are 9 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
151 154first strand
Strand 2
A
137 144anti-parallel
Strand 3
A
123 130anti-parallel
Strand 4
A
94 102anti-parallel
Strand 5
A
409 417anti-parallel
Strand 6
A
423 445anti-parallel
Strand 7
A
451 468anti-parallel
Strand 8
A
471 479anti-parallel
Strand 9
A
492 493parallel
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There are 2 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
670 672first strand
Strand 2
A
537 550anti-parallel
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There are 14 strands in AK sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
151 154first strand
Strand 2
A
137 144anti-parallel
Strand 3
A
123 130anti-parallel
Strand 4
A
94 102anti-parallel
Strand 5
A
409 417anti-parallel
Strand 6
A
423 445anti-parallel
Strand 7
A
451 468anti-parallel
Strand 8
A
471 479anti-parallel
Strand 9
A
485 489anti-parallel
Strand 10
A
701 708anti-parallel
Strand 11
A
600 607anti-parallel
Strand 12
A
586 594anti-parallel
Strand 13
A
537 550anti-parallel
Strand 14
A
670 672anti-parallel
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There are 5 strands in AL sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
208 212first strand
Strand 2
A
224 231anti-parallel
Strand 3
A
242 250anti-parallel
Strand 4
A
260 266anti-parallel
Strand 5
A
269 271anti-parallel
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There are 2 strands in AM sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
314 316first strand
Strand 2
B
314 316anti-parallel
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There are 6 strands in AN sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
323 326first strand
Strand 2
A
329 332anti-parallel
Strand 3
A
335 341anti-parallel
Strand 4
A
347 354anti-parallel
Strand 5
A
357 372anti-parallel
Strand 6
A
383 385anti-parallel
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There are 7 strands in AO sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
323 326first strand
Strand 2
A
329 332anti-parallel
Strand 3
A
335 341anti-parallel
Strand 4
A
347 354anti-parallel
Strand 5
A
357 372anti-parallel
Strand 6
A
520 530anti-parallel
Strand 7
A
682 684anti-parallel
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There are 2 strands in AP sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
383 385first strand
Strand 2
A
357 372anti-parallel
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There are 3 strands in AQ sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
498 499first strand
Strand 2
A
515 518anti-parallel
Strand 3
A
508 512anti-parallel
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There are 2 strands in AR sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
577 578first strand
Strand 2
A
630 632anti-parallel
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There are 2 strands in AS sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
634 636first strand
Strand 2
A
674 676anti-parallel
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There are 2 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
83 84first strand
Strand 2
B
94 102anti-parallel
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There are 2 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
151 154first strand
Strand 2
B
137 144anti-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
164 165first strand
Strand 2
B
137 144anti-parallel
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There are 2 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
395 396first strand
Strand 2
B
451 468anti-parallel
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There are 9 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
554 565first strand
Strand 2
B
540 551anti-parallel
Strand 3
B
586 594anti-parallel
Strand 4
B
600 608anti-parallel
Strand 5
B
700 707anti-parallel
Strand 6
B
485 493anti-parallel
Strand 7
B
471 479anti-parallel
Strand 8
B
451 468anti-parallel
Strand 9
B
723 726anti-parallel
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There are 14 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
554 565first strand
Strand 2
B
540 551anti-parallel
Strand 3
B
586 594anti-parallel
Strand 4
B
600 608anti-parallel
Strand 5
B
700 707anti-parallel
Strand 6
B
485 493anti-parallel
Strand 7
B
471 479anti-parallel
Strand 8
B
451 468anti-parallel
Strand 9
B
423 445anti-parallel
Strand 10
B
409 417anti-parallel
Strand 11
B
94 102anti-parallel
Strand 12
B
123 130anti-parallel
Strand 13
B
137 144anti-parallel
Strand 14
B
151 154anti-parallel
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There are 9 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
554 565first strand
Strand 2
B
540 551anti-parallel
Strand 3
B
586 594anti-parallel
Strand 4
B
600 608anti-parallel
Strand 5
B
700 707anti-parallel
Strand 6
B
485 493anti-parallel
Strand 7
B
471 479anti-parallel
Strand 8
B
451 468anti-parallel
Strand 9
B
395 396anti-parallel
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There are 2 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
723 726first strand
Strand 2
B
451 468anti-parallel
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There are 12 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
554 565first strand
Strand 2
B
540 551anti-parallel
Strand 3
B
586 594anti-parallel
Strand 4
B
600 608anti-parallel
Strand 5
B
700 707anti-parallel
Strand 6
B
485 493anti-parallel
Strand 7
B
471 479anti-parallel
Strand 8
B
451 468anti-parallel
Strand 9
B
423 445anti-parallel
Strand 10
B
409 417anti-parallel
Strand 11
B
94 102anti-parallel
Strand 12
B
83 84anti-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
208 211first strand
Strand 2
B
224 231anti-parallel
Strand 3
B
242 250anti-parallel
Strand 4
B
263 266anti-parallel
Strand 5
B
269 270anti-parallel
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There are 6 strands in BK sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
323 326first strand
Strand 2
B
329 332anti-parallel
Strand 3
B
335 342anti-parallel
Strand 4
B
346 354anti-parallel
Strand 5
B
357 372anti-parallel
Strand 6
B
383 385anti-parallel
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There are 9 strands in BL sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
323 326first strand
Strand 2
B
329 332anti-parallel
Strand 3
B
335 342anti-parallel
Strand 4
B
346 354anti-parallel
Strand 5
B
357 372anti-parallel
Strand 6
B
520 530anti-parallel
Strand 7
B
672 684anti-parallel
Strand 8
B
630 636anti-parallel
Strand 9
B
576 578anti-parallel
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There are 8 strands in BM sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
323 326first strand
Strand 2
B
329 332anti-parallel
Strand 3
B
335 342anti-parallel
Strand 4
B
346 354anti-parallel
Strand 5
B
357 372anti-parallel
Strand 6
B
520 530anti-parallel
Strand 7
B
672 684anti-parallel
Strand 8
B
536 537parallel
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There are 2 strands in BN sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
383 385first strand
Strand 2
B
357 372anti-parallel
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There are 3 strands in BO sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
497 499first strand
Strand 2
B
515 518anti-parallel
Strand 3
B
508 512anti-parallel
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