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


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 2EXQ entry

There are 3 chains in PDB entry 2EXQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
L
 ASP 1ALA 109
H
 ASP 1SER 112
A
 GLU 3VAL 512
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 16 helices in PDB entry 2EXQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
L
79 83Right-handed 310
Helix 2
2
H
63 65Right-handed 310
Helix 3
3
H
83 87Right-handed 310
Helix 4
4
A
19 32Right-handed alpha
Helix 5
5
A
52 58Right-handed 310
Helix 6
6
A
76 80Right-handed 310
Helix 7
7
A
134 138Right-handed 310
Helix 8
8
A
318 322Right-handed 310
Helix 9
9
A
328 336Right-handed 310
Helix 10
10
A
348 354Right-handed alpha
Helix 11
11
A
364 374Right-handed 310
Helix 12
12
A
393 397Right-handed 310
Helix 13
13
A
407 410Right-handed 310
Helix 14
14
A
447 451Right-handed 310
Helix 15
15
A
452 457Right-handed alpha
Helix 16
16
A
471 475Right-handed 310
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There are 15 sheets in PDB entry 2EXQ. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O,

There are 4 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
5 7first strand
Strand 2
L
19 24anti-parallel
Strand 3
L
70 75anti-parallel
Strand 4
L
62 67anti-parallel
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There are 6 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 13first strand
Strand 2
L
102 106parallel
Strand 3
L
85 90anti-parallel
Strand 4
L
33 38anti-parallel
Strand 5
L
44 49anti-parallel
Strand 6
L
53 54anti-parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 13first strand
Strand 2
L
102 106parallel
Strand 3
L
85 90anti-parallel
Strand 4
L
97 98anti-parallel
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There are 4 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
3 7first strand
Strand 2
H
18 25anti-parallel
Strand 3
H
77 82anti-parallel
Strand 4
H
67 72anti-parallel
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There are 6 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
11 12first strand
Strand 2
H
107 111parallel
Strand 3
H
88 94anti-parallel
Strand 4
H
33 39anti-parallel
Strand 5
H
45 52anti-parallel
Strand 6
H
57 59anti-parallel
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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
11 12first strand
Strand 2
H
107 111parallel
Strand 3
H
88 94anti-parallel
Strand 4
H
102 103anti-parallel
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There are 4 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
6 7first strand
Strand 2
A
36 37parallel
Strand 3
A
60 61parallel
Strand 4
A
82 83parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
41 43first strand
Strand 2
A
65 68parallel
Strand 3
A
93 98parallel
Strand 4
A
123 127parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
212 213first strand
Strand 2
A
226 227anti-parallel
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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
230 232first strand
Strand 2
A
235 237anti-parallel
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There are 2 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
244 247first strand
Strand 2
A
252 255anti-parallel
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There are 2 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
261 263first strand
Strand 2
A
266 268anti-parallel
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There are 2 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
276 277first strand
Strand 2
A
283 284anti-parallel
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There are 3 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
340 341first strand
Strand 2
A
376 377parallel
Strand 3
A
401 402parallel
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There are 5 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
345 347first strand
Strand 2
A
381 383parallel
Strand 3
A
412 417parallel
Strand 4
A
436 440parallel
Strand 5
A
464 465parallel
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