Analysis of interatomic Contacts of Structural Units in PDB entry:
1SRQ


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 1SRQ entry

There are 4 chains in PDB entry 1SRQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 78GLY 413
B
 VAL 79LEU 411
C
 THR 77MET 409
D
 TYR 90MET 409
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 29 helices in PDB entry 1SRQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
86 92Right-handed alpha
Helix 2
2
A
152 159Right-handed alpha
Helix 3
3
A
174 189Right-handed alpha
Helix 4
4
A
206 211Right-handed alpha
Helix 5
5
A
217 227Right-handed alpha
Helix 6
6
A
269 272Right-handed alpha
Helix 7
7
A
283 291Right-handed alpha
Helix 8
8
A
360 377Right-handed alpha
Helix 9
9
A
379 409Right-handed alpha
Helix 10
10
B
86 92Right-handed alpha
Helix 11
11
B
152 159Right-handed alpha
Helix 12
12
B
174 189Right-handed alpha
Helix 13
13
B
206 211Right-handed alpha
Helix 14
14
B
217 227Right-handed alpha
Helix 15
15
B
269 272Right-handed alpha
Helix 16
16
B
283 291Right-handed alpha
Helix 17
17
B
360 377Right-handed alpha
Helix 18
18
B
379 409Right-handed alpha
Helix 19
19
C
86 92Right-handed alpha
Helix 20
20
C
152 159Right-handed alpha
Helix 21
21
C
174 189Right-handed alpha
Helix 22
22
C
206 211Right-handed alpha
Helix 23
23
C
217 227Right-handed alpha
Helix 24
24
C
269 272Right-handed alpha
Helix 25
25
C
283 291Right-handed alpha
Helix 26
26
C
360 377Right-handed alpha
Helix 27
27
C
379 409Right-handed alpha
Helix 28
12
D
174 186Right-handed alpha
Helix 29
18
D
395 409Right-handed alpha
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There are 7 sheets in PDB entry 1SRQ. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

There are 5 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
136 144first strand
Strand 2
A
124 133anti-parallel
Strand 3
A
110 121anti-parallel
Strand 4
A
99 106anti-parallel
Strand 5
A
169 172anti-parallel
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There are 8 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
229 232first strand
Strand 2
A
253 259anti-parallel
Strand 3
A
262 268anti-parallel
Strand 4
A
191 200parallel
Strand 5
A
292 299parallel
Strand 6
A
315 323parallel
Strand 7
A
331 338anti-parallel
Strand 8
A
354 356anti-parallel
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There are 5 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
136 144first strand
Strand 2
B
124 133anti-parallel
Strand 3
B
110 121anti-parallel
Strand 4
B
99 106anti-parallel
Strand 5
B
169 172anti-parallel
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There are 7 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
229 232first strand
Strand 2
B
253 259anti-parallel
Strand 3
B
262 268anti-parallel
Strand 4
B
191 200parallel
Strand 5
B
292 299parallel
Strand 6
B
315 322parallel
Strand 7
B
332 338anti-parallel
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There are 5 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
136 144first strand
Strand 2
C
124 133anti-parallel
Strand 3
C
110 121anti-parallel
Strand 4
C
99 106anti-parallel
Strand 5
C
169 172anti-parallel
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There are 8 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
229 232first strand
Strand 2
C
253 259anti-parallel
Strand 3
C
262 268anti-parallel
Strand 4
C
191 200parallel
Strand 5
C
292 299parallel
Strand 6
C
315 323parallel
Strand 7
C
331 338anti-parallel
Strand 8
C
354 356anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
100 101first strand
Strand 2
D
115 117anti-parallel
Strand 3
D
128 130anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il