Analysis of interatomic Contacts of Structural Units in PDB entry:
1SM3


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 1SM3 entry

There are 3 chains in PDB entry 1SM3 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
L
 ILE 3ARG 208
H
 GLN 1ARG 213
P
 SER 2PRO 10
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 11 helices in PDB entry 1SM3. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
L
29 31Right-handed 310
Helix 2
2
L
80 82Right-handed 310
Helix 3
3
L
122 127Right-handed alpha
Helix 4
4
L
182 187Right-handed alpha
Helix 5
5
H
29 31Right-handed 310
Helix 6
6
H
52 53Right-handed 310
Helix 7
7
H
73 75Right-handed 310
Helix 8
8
H
84 86Right-handed 310
Helix 9
9
H
155 157Right-handed 310
Helix 10
10
H
185 187Right-handed 310
Helix 11
11
H
200 202Right-handed 310
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There are 9 sheets in PDB entry 1SM3. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

There are 4 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
5 7first strand
Strand 2
L
19 25anti-parallel
Strand 3
L
70 75anti-parallel
Strand 4
L
62 67anti-parallel
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There are 5 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 14first strand
Strand 2
L
102 106parallel
Strand 3
L
84 89anti-parallel
Strand 4
L
34 39anti-parallel
Strand 5
L
43 48anti-parallel
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There are 2 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
89 91first strand
Strand 2
L
96 98anti-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
L
114 118first strand
Strand 2
L
129 137anti-parallel
Strand 3
L
174 181anti-parallel
Strand 4
L
159 161anti-parallel
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There are 3 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
145 150first strand
Strand 2
L
190 197anti-parallel
Strand 3
L
200 207anti-parallel
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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
3 7first strand
Strand 2
H
18 25anti-parallel
Strand 3
H
77 82anti-parallel
Strand 4
H
67 72anti-parallel
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There are 5 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
107 109first strand
Strand 2
H
88 94anti-parallel
Strand 3
H
34 40anti-parallel
Strand 4
H
44 51anti-parallel
Strand 5
H
57 59anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
120 124first strand
Strand 2
H
135 143anti-parallel
Strand 3
H
177 184anti-parallel
Strand 4
H
163 165anti-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
H
151 154first strand
Strand 2
H
193 199anti-parallel
Strand 3
H
204 210anti-parallel
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