Analysis of interatomic Contacts of Structural Units in PDB entry:
7U20


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 7U20 entry

There are 2 chains in PDB entry 7U20 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 34GLN 265
B
 SER 0GLU 348
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 13 helices in PDB entry 7U20. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
40 44Right-handed 310
Helix 2
AA2
A
45 49Right-handed 310
Helix 3
AA3
A
88 95Right-handed alpha
Helix 4
AA4
A
109 125Right-handed alpha
Helix 5
AA5
A
144 149Right-handed alpha
Helix 6
AA6
A
170 174Right-handed 310
Helix 7
AA7
A
177 187Right-handed alpha
Helix 8
AA8
A
200 214Right-handed alpha
Helix 9
AA9
A
229 234Right-handed 310
Helix 10
AB1
A
238 248Right-handed alpha
Helix 11
AB2
B
232 237Right-handed alpha
Helix 12
AB3
B
240 244Right-handed 310
Helix 13
AB4
B
330 343Right-handed alpha
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There are 9 sheets in PDB entry 7U20. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9,

There are 7 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
134 137first strand
Strand 2
A
102 106parallel
Strand 3
A
78 83parallel
Strand 4
A
154 160parallel
Strand 5
A
188 198parallel
Strand 6
A
252 258anti-parallel
Strand 7
A
217 220anti-parallel
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There are 3 strands in AA2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
6 10first strand
Strand 2
B
13 18anti-parallel
Strand 3
B
25 26anti-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
B
6 10first strand
Strand 2
B
13 18anti-parallel
Strand 3
B
21 22anti-parallel
Strand 4
B
38 39anti-parallel
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There are 4 strands in AA4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
64 69first strand
Strand 2
B
75 80anti-parallel
Strand 3
B
84 89anti-parallel
Strand 4
B
94 100anti-parallel
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There are 4 strands in AA5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
105 110first strand
Strand 2
B
116 121anti-parallel
Strand 3
B
125 130anti-parallel
Strand 4
B
139 143anti-parallel
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There are 4 strands in AA6 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
148 153first strand
Strand 2
B
159 164anti-parallel
Strand 3
B
169 173anti-parallel
Strand 4
B
180 183anti-parallel
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There are 4 strands in AA7 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
191 196first strand
Strand 2
B
203 208anti-parallel
Strand 3
B
212 217anti-parallel
Strand 4
B
223 228anti-parallel
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There are 4 strands in AA8 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
246 252first strand
Strand 2
B
257 262anti-parallel
Strand 3
B
267 274anti-parallel
Strand 4
B
279 287anti-parallel
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There are 4 strands in AA9 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
292 297first strand
Strand 2
B
303 307anti-parallel
Strand 3
B
314 319anti-parallel
Strand 4
B
324 326anti-parallel
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