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


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 4AYI entry

There are 3 chains in PDB entry 4AYI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PRO 324ILE 443
D
 LEU 81LEU 321
E
 CYS 325ILE 443
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 11 helices in PDB entry 4AYI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
337 342Right-handed alpha
Helix 2
2
A
343 345Right-handed 310
Helix 3
3
A
422 426Right-handed 310
Helix 4
4
D
81 87Right-handed alpha
Helix 5
5
D
101 105Right-handed 310
Helix 6
6
D
105 108Right-handed 310
Helix 7
7
D
131 133Right-handed 310
Helix 8
8
D
206 209Right-handed 310
Helix 9
9
E
337 342Right-handed alpha
Helix 10
10
E
343 345Right-handed 310
Helix 11
11
E
422 426Right-handed 310
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There are 9 sheets in PDB entry 4AYI. Click on sheet of interest to get list of strands forming it: AA, AB, AC, A, DB, C, EA, EB, EC,

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
333 335first strand
Strand 2
A
352 357anti-parallel
Strand 3
A
369 375anti-parallel
Strand 4
A
378 380anti-parallel
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There are 3 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
361 362first strand
Strand 2
A
386 390anti-parallel
Strand 3
A
405 407anti-parallel
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There are 3 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
411 413first strand
Strand 2
A
428 432anti-parallel
Strand 3
A
435 437anti-parallel
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There are 2 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
98 99first strand
Strand 2
D
128 129anti-parallel
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There are 6 strands in DB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
118 123first strand
Strand 2
D
110 115anti-parallel
Strand 3
D
138 149anti-parallel
Strand 4
D
152 165anti-parallel
Strand 5
D
169 180anti-parallel
Strand 6
D
188 201anti-parallel
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There are 9 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
214 223first strand
Strand 2
D
226 236anti-parallel
Strand 3
D
241 247anti-parallel
Strand 4
D
256 265anti-parallel
Strand 5
D
271 279anti-parallel
Strand 6
D
282 292anti-parallel
Strand 7
D
298 307anti-parallel
Strand 8
D
310 319anti-parallel
Strand 9
D
214 223anti-parallel
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There are 4 strands in EA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
333 335first strand
Strand 2
E
352 357anti-parallel
Strand 3
E
369 375anti-parallel
Strand 4
E
378 380anti-parallel
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There are 3 strands in EB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
361 362first strand
Strand 2
E
386 390anti-parallel
Strand 3
E
405 407anti-parallel
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There are 3 strands in EC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
411 413first strand
Strand 2
E
428 432anti-parallel
Strand 3
E
435 437anti-parallel
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