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


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 1QAB entry

There are 6 chains in PDB entry 1QAB (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 1ASN 124
B
 CYS 10GLU 127
C
 CYS 10THR 123
D
 CYS 10VAL 122
E
 CYS 4LEU 183
F
 CYS 4CYS 174
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 1QAB. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
75 82Right-handed alpha
Helix 2
2
B
76 80Right-handed alpha
Helix 3
3
C
76 80Right-handed alpha
Helix 4
4
D
76 80Right-handed alpha
Helix 5
5
E
17 19Right-handed 310
Helix 6
6
E
148 151Right-handed alpha
Helix 7
7
F
18 20Right-handed 310
Helix 8
8
F
149 152Right-handed alpha
Helix 9
9
F
156 160Right-handed pi
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There are 15 sheets in PDB entry 1QAB. Click on sheet of interest to get list of strands forming it: A, A1, B, C, D, E, F, G, H, I, J, K, L, M, N,

There are 3 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
54 55first strand
Strand 2
B
12 15anti-parallel
Strand 3
B
54 55anti-parallel
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There are 3 strands in A1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
54 55first strand
Strand 2
B
12 15anti-parallel
Strand 3
B
54 55anti-parallel
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There are 4 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
41 43first strand
Strand 2
A
30 35anti-parallel
Strand 3
A
67 73anti-parallel
Strand 4
A
91 97anti-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
B
43 48first strand
Strand 2
B
29 34anti-parallel
Strand 3
B
67 73anti-parallel
Strand 4
B
91 97anti-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
C
23 24first strand
Strand 2
C
14 18anti-parallel
Strand 3
C
107 111parallel
Strand 4
C
117 120anti-parallel
Strand 5
D
116 119anti-parallel
Strand 6
D
108 111anti-parallel
Strand 7
D
17 18parallel
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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
41 48first strand
Strand 2
C
29 35anti-parallel
Strand 3
C
67 73anti-parallel
Strand 4
C
91 97anti-parallel
Strand 5
D
88 90anti-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
D
14 15first strand
Strand 2
D
54 55anti-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
D
41 47first strand
Strand 2
D
30 35anti-parallel
Strand 3
D
67 73anti-parallel
Strand 4
D
94 97anti-parallel
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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
E
58 61first strand
Strand 2
E
69 72anti-parallel
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There are 3 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
75 76first strand
Strand 2
E
88 90anti-parallel
Strand 3
E
100 102anti-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
E
116 118first strand
Strand 2
E
134 136anti-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
F
23 25first strand
Strand 2
F
39 44anti-parallel
Strand 3
F
56 61anti-parallel
Strand 4
F
69 72anti-parallel
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There are 3 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
75 77first strand
Strand 2
F
87 90anti-parallel
Strand 3
F
100 103anti-parallel
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There are 3 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
108 109first strand
Strand 2
F
115 117anti-parallel
Strand 3
F
135 137anti-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
F
120 123first strand
Strand 2
F
130 132anti-parallel
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