Analysis of interatomic Contacts of Structural Units in PDB entry:
3A7A


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 3A7A entry

There are 4 chains in PDB entry 3A7A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 1ARG 337
B
 ASN 2GLU 128
C
 SER 1ARG 337
D
 ASN 2GLU 128
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 32 helices in PDB entry 3A7A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
12 26Right-handed alpha
Helix 2
2
A
50 55Right-handed alpha
Helix 3
3
A
57 63Right-handed alpha
Helix 4
4
A
96 112Right-handed alpha
Helix 5
5
A
157 165Right-handed alpha
Helix 6
6
A
195 211Right-handed alpha
Helix 7
7
A
230 239Right-handed alpha
Helix 8
8
A
241 245Right-handed alpha
Helix 9
9
A
287 297Right-handed alpha
Helix 10
10
A
303 316Right-handed alpha
Helix 11
11
A
318 320Right-handed 310
Helix 12
12
A
321 336Right-handed alpha
Helix 13
13
B
29 37Right-handed alpha
Helix 14
14
B
89 94Right-handed alpha
Helix 15
15
B
109 114Right-handed alpha
Helix 16
16
B
118 126Right-handed alpha
Helix 17
17
C
12 26Right-handed alpha
Helix 18
18
C
50 55Right-handed alpha
Helix 19
19
C
57 63Right-handed alpha
Helix 20
20
C
96 111Right-handed alpha
Helix 21
21
C
157 166Right-handed alpha
Helix 22
22
C
186 190Right-handed 310
Helix 23
23
C
195 212Right-handed alpha
Helix 24
24
C
230 239Right-handed alpha
Helix 25
25
C
241 245Right-handed alpha
Helix 26
26
C
287 297Right-handed alpha
Helix 27
27
C
303 318Right-handed alpha
Helix 28
28
C
321 337Right-handed alpha
Helix 29
29
D
31 37Right-handed alpha
Helix 30
30
D
89 94Right-handed alpha
Helix 31
31
D
108 114Right-handed 310
Helix 32
32
D
117 126Right-handed alpha
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There are 10 sheets in PDB entry 3A7A. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J,

There are 8 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
116 118first strand
Strand 2
A
122 127anti-parallel
Strand 3
A
130 141anti-parallel
Strand 4
A
146 153anti-parallel
Strand 5
A
83 90anti-parallel
Strand 6
A
32 37anti-parallel
Strand 7
A
3 8parallel
Strand 8
A
218 220parallel
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There are 6 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
116 118first strand
Strand 2
A
122 127anti-parallel
Strand 3
A
130 141anti-parallel
Strand 4
B
65 70parallel
Strand 5
B
56 62anti-parallel
Strand 6
B
39 43anti-parallel
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There are 3 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
66 69first strand
Strand 2
A
42 45parallel
Strand 3
A
77 79anti-parallel
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There are 4 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
171 174first strand
Strand 2
A
251 259anti-parallel
Strand 3
A
262 271anti-parallel
Strand 4
A
274 282anti-parallel
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There are 6 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
8 9first strand
Strand 2
B
14 18anti-parallel
Strand 3
B
24 28anti-parallel
Strand 4
B
102 106anti-parallel
Strand 5
B
75 80anti-parallel
Strand 6
B
50 51anti-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
117 118first strand
Strand 2
C
122 126anti-parallel
Strand 3
C
131 141anti-parallel
Strand 4
C
145 153anti-parallel
Strand 5
C
83 91anti-parallel
Strand 6
C
32 37anti-parallel
Strand 7
C
3 8parallel
Strand 8
C
218 220parallel
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There are 6 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
117 118first strand
Strand 2
C
122 126anti-parallel
Strand 3
C
131 141anti-parallel
Strand 4
D
66 71parallel
Strand 5
D
55 61anti-parallel
Strand 6
D
41 43anti-parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
66 69first strand
Strand 2
C
42 45parallel
Strand 3
C
77 79anti-parallel
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There are 5 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
171 174first strand
Strand 2
C
251 259anti-parallel
Strand 3
C
262 271anti-parallel
Strand 4
C
274 282anti-parallel
Strand 5
C
300 301anti-parallel
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There are 6 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
8 9first strand
Strand 2
D
14 18anti-parallel
Strand 3
D
24 28anti-parallel
Strand 4
D
102 106anti-parallel
Strand 5
D
75 80anti-parallel
Strand 6
D
50 51anti-parallel
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