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


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 4QCA entry

There are 4 chains in PDB entry 4QCA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY -2TYR 218
B
 SER -1TYR 218
C
 GLY -2TYR 218
D
 HIS 0TYR 218
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 41 helices in PDB entry 4QCA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
16 18Right-handed 310
Helix 2
2
A
19 38Right-handed alpha
Helix 3
3
A
45 49Right-handed 310
Helix 4
4
A
50 55Right-handed 310
Helix 5
5
A
86 101Right-handed alpha
Helix 6
6
A
110 113Right-handed 310
Helix 7
7
A
133 149Right-handed alpha
Helix 8
8
A
159 170Right-handed alpha
Helix 9
9
A
184 192Right-handed 310
Helix 10
10
A
193 205Right-handed alpha
Helix 11
11
A
211 214Right-handed 310
Helix 12
12
B
19 40Right-handed alpha
Helix 13
13
B
45 49Right-handed 310
Helix 14
14
B
50 55Right-handed 310
Helix 15
15
B
86 101Right-handed alpha
Helix 16
16
B
110 113Right-handed 310
Helix 17
17
B
133 149Right-handed alpha
Helix 18
18
B
159 170Right-handed alpha
Helix 19
19
B
188 192Right-handed 310
Helix 20
20
B
193 205Right-handed alpha
Helix 21
21
B
211 214Right-handed 310
Helix 22
22
C
19 38Right-handed alpha
Helix 23
23
C
45 49Right-handed 310
Helix 24
24
C
50 55Right-handed 310
Helix 25
25
C
86 101Right-handed alpha
Helix 26
26
C
110 113Right-handed 310
Helix 27
27
C
133 150Right-handed alpha
Helix 28
28
C
163 170Right-handed alpha
Helix 29
29
C
184 192Right-handed 310
Helix 30
30
C
193 205Right-handed alpha
Helix 31
31
C
211 214Right-handed 310
Helix 32
32
D
19 39Right-handed alpha
Helix 33
33
D
45 49Right-handed 310
Helix 34
34
D
50 55Right-handed 310
Helix 35
35
D
86 101Right-handed alpha
Helix 36
36
D
110 113Right-handed 310
Helix 37
37
D
133 152Right-handed alpha
Helix 38
38
D
163 170Right-handed alpha
Helix 39
39
D
184 188Right-handed 310
Helix 40
40
D
193 205Right-handed alpha
Helix 41
41
D
211 214Right-handed 310
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There are 16 sheets in PDB entry 4QCA. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P,

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
A
2 5first strand
Strand 2
A
12 15anti-parallel
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There are 2 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
42 43first strand
Strand 2
A
125 126anti-parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
116 120first strand
Strand 2
A
62 66parallel
Strand 3
A
154 158parallel
Strand 4
A
175 179parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
107 108first strand
Strand 2
A
216 217anti-parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
1 5first strand
Strand 2
B
12 16anti-parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
42 43first strand
Strand 2
B
125 126anti-parallel
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There are 4 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
116 120first strand
Strand 2
B
62 66parallel
Strand 3
B
154 158parallel
Strand 4
B
175 179parallel
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There are 2 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
107 108first strand
Strand 2
B
216 217anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
1 5first strand
Strand 2
C
12 16anti-parallel
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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
42 43first strand
Strand 2
C
125 126anti-parallel
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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
116 120first strand
Strand 2
C
62 66parallel
Strand 3
C
154 158parallel
Strand 4
C
175 179parallel
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There are 2 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
107 108first strand
Strand 2
C
216 217anti-parallel
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There are 2 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
1 5first strand
Strand 2
D
12 16anti-parallel
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There are 2 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
42 43first strand
Strand 2
D
125 126anti-parallel
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There are 4 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
116 120first strand
Strand 2
D
62 66parallel
Strand 3
D
154 158parallel
Strand 4
D
175 179parallel
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There are 2 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
107 108first strand
Strand 2
D
216 217anti-parallel
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