Analysis of interatomic Contacts of Structural Units in PDB entry:
3APR


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 3APR entry

There are 3 chains in PDB entry 3APR (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
E
 ALA 1GLU 325
I
 PRO 2HIS 4
I
 VAL 6TYR 7
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 9 helices in PDB entry 3APR. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
H1
E
60 62Right-handed 310
Helix 2
H2
E
112 115Right-handed alpha
Helix 3
H3
E
128 130Right-handed 310
Helix 4
H4
E
139 145Right-handed alpha
Helix 5
H5
E
161 163Right-handed 310
Helix 6
H6
E
176 178Right-handed 310
Helix 7
H7
E
229 237Right-handed alpha
Helix 8
H8
E
273 276Right-handed 310
Helix 9
H9
E
301 304Right-handed alpha
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There are 10 sheets in PDB entry 3APR. Click on sheet of interest to get list of strands forming it: S1, S2A, S2B, S3A, S3B, S4A, S4B, S5, C1, C2,

There are 6 strands in S1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
5 7first strand
Strand 2
E
167 171anti-parallel
Strand 3
E
153 158anti-parallel
Strand 4
E
307 312anti-parallel
Strand 5
E
317 322anti-parallel
Strand 6
E
184 187anti-parallel
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There are 3 strands in S2A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
28 33first strand
Strand 2
E
16 24anti-parallel
Strand 3
E
8 11anti-parallel
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There are 4 strands in S2B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
28 33first strand
Strand 2
E
16 24anti-parallel
Strand 3
E
91 94anti-parallel
Strand 4
E
97 100anti-parallel
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There are 4 strands in S3A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
207 210first strand
Strand 2
E
201 204anti-parallel
Strand 3
E
260 264anti-parallel
Strand 4
E
267 271anti-parallel
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There are 2 strands in S3B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
196 199first strand
Strand 2
E
213 217anti-parallel
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There are 3 strands in S4A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
67 68first strand
Strand 2
E
82 94anti-parallel
Strand 3
E
102 107anti-parallel
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There are 3 strands in S4B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
71 76first strand
Strand 2
E
82 94anti-parallel
Strand 3
E
108 111anti-parallel
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There are 4 strands in S5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
241 243first strand
Strand 2
E
247 250anti-parallel
Strand 3
E
284 287anti-parallel
Strand 4
E
279 281anti-parallel
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There are 3 strands in C1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
28 35first strand
Strand 2
E
121 124parallel
Strand 3
E
40 44anti-parallel
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There are 4 strands in C2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
213 217first strand
Strand 2
E
295 300parallel
Strand 3
E
224 227anti-parallel
Strand 4
E
289 292parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il