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


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 4IST entry

There are 2 chains in PDB entry 4IST (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1GLN 614
B
 MET 1GLN 614
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 52 helices in PDB entry 4IST. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 18Right-handed alpha
Helix 2
2
A
22 34Right-handed alpha
Helix 3
3
A
49 63Right-handed alpha
Helix 4
4
A
65 69Right-handed 310
Helix 5
5
A
93 97Right-handed 310
Helix 6
6
A
104 113Right-handed alpha
Helix 7
7
A
124 128Right-handed 310
Helix 8
8
A
154 163Right-handed alpha
Helix 9
9
A
179 185Right-handed alpha
Helix 10
10
A
218 230Right-handed alpha
Helix 11
11
A
270 284Right-handed alpha
Helix 12
12
A
294 307Right-handed alpha
Helix 13
13
A
309 323Right-handed alpha
Helix 14
14
A
326 330Right-handed 310
Helix 15
15
A
331 340Right-handed alpha
Helix 16
16
A
341 344Right-handed 310
Helix 17
17
A
345 369Right-handed alpha
Helix 18
18
A
383 390Right-handed alpha
Helix 19
19
A
392 399Right-handed alpha
Helix 20
20
A
403 408Right-handed alpha
Helix 21
21
A
436 452Right-handed alpha
Helix 22
22
A
477 481Right-handed 310
Helix 23
23
A
498 504Right-handed alpha
Helix 24
24
A
557 563Right-handed alpha
Helix 25
25
A
590 594Right-handed 310
Helix 26
26
A
601 604Right-handed 310
Helix 27
27
A
605 610Right-handed alpha
Helix 28
28
B
8 19Right-handed alpha
Helix 29
29
B
20 34Right-handed alpha
Helix 30
30
B
49 62Right-handed alpha
Helix 31
31
B
65 69Right-handed 310
Helix 32
32
B
93 97Right-handed 310
Helix 33
33
B
104 113Right-handed alpha
Helix 34
34
B
124 128Right-handed 310
Helix 35
35
B
154 163Right-handed alpha
Helix 36
36
B
179 185Right-handed alpha
Helix 37
37
B
218 230Right-handed alpha
Helix 38
38
B
270 284Right-handed alpha
Helix 39
39
B
294 307Right-handed alpha
Helix 40
40
B
309 323Right-handed alpha
Helix 41
41
B
326 330Right-handed 310
Helix 42
42
B
331 340Right-handed alpha
Helix 43
43
B
341 344Right-handed 310
Helix 44
44
B
345 369Right-handed alpha
Helix 45
45
B
383 390Right-handed alpha
Helix 46
46
B
392 399Right-handed alpha
Helix 47
47
B
436 452Right-handed alpha
Helix 48
48
B
477 481Right-handed 310
Helix 49
49
B
499 505Right-handed alpha
Helix 50
50
B
557 563Right-handed alpha
Helix 51
51
B
601 604Right-handed 310
Helix 52
52
B
605 613Right-handed alpha
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There are 7 sheets in PDB entry 4IST. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

There are 10 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
115 121first strand
Strand 2
A
74 79parallel
Strand 3
A
168 173parallel
Strand 4
A
211 216anti-parallel
Strand 5
A
188 191anti-parallel
Strand 6
A
411 419anti-parallel
Strand 7
A
425 432anti-parallel
Strand 8
A
372 376anti-parallel
Strand 9
A
256 260parallel
Strand 10
A
288 292parallel
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There are 5 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
508 511first strand
Strand 2
A
549 554anti-parallel
Strand 3
A
483 488anti-parallel
Strand 4
A
581 587parallel
Strand 5
A
569 575anti-parallel
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There are 3 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
535 537first strand
Strand 2
A
519 523anti-parallel
Strand 3
A
598 599anti-parallel
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There are 11 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
44 47first strand
Strand 2
B
116 121anti-parallel
Strand 3
B
75 79parallel
Strand 4
B
168 173parallel
Strand 5
B
211 216anti-parallel
Strand 6
B
188 191anti-parallel
Strand 7
B
411 419anti-parallel
Strand 8
B
425 432anti-parallel
Strand 9
B
372 376anti-parallel
Strand 10
B
256 260parallel
Strand 11
B
288 292parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
141 142first strand
Strand 2
B
145 149anti-parallel
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There are 5 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
508 511first strand
Strand 2
B
549 554anti-parallel
Strand 3
B
483 488anti-parallel
Strand 4
B
581 587parallel
Strand 5
B
569 575anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
533 537first strand
Strand 2
B
519 523anti-parallel
Strand 3
B
598 599anti-parallel
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