Analysis of interatomic Contacts of Structural Units in PDB entry:
21XQ


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 21XQ entry

There is 1 chain in PDB entry 21XQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 37PRO 438
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 20 helices in PDB entry 21XQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
46 63Right-handed alpha
Helix 2
AA2
A
97 110Right-handed alpha
Helix 3
AA3
A
112 127Right-handed alpha
Helix 4
AA4
A
159 178Right-handed alpha
Helix 5
AA5
A
185 199Right-handed alpha
Helix 6
AA6
A
200 204Right-handed 310
Helix 7
AA7
A
207 211Right-handed 310
Helix 8
AA8
A
235 239Right-handed 310
Helix 9
AA9
A
240 251Right-handed alpha
Helix 10
AB1
A
252 254Right-handed 310
Helix 11
AB2
A
255 272Right-handed alpha
Helix 12
AB3
A
304 308Right-handed 310
Helix 13
AB4
A
310 315Right-handed 310
Helix 14
AB5
A
319 321Right-handed 310
Helix 15
AB6
A
322 334Right-handed alpha
Helix 16
AB7
A
341 359Right-handed alpha
Helix 17
AB8
A
380 391Right-handed alpha
Helix 18
AB9
A
392 394Right-handed 310
Helix 19
AC1
A
396 409Right-handed alpha
Helix 20
AC2
A
415 430Right-handed alpha
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There are 5 sheets in PDB entry 21XQ. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5,

There are 2 strands in AA1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
38 41first strand
Strand 2
A
434 436anti-parallel
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There are 2 strands in AA2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
70 72first strand
Strand 2
A
78 80anti-parallel
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There are 4 strands in AA3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
87 89first strand
Strand 2
A
92 96anti-parallel
Strand 3
A
143 146anti-parallel
Strand 4
A
151 155anti-parallel
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There are 3 strands in AA4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
284 286first strand
Strand 2
A
276 278anti-parallel
Strand 3
A
302 303parallel
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There are 2 strands in AA5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
365 368first strand
Strand 2
A
374 377anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il