Analysis of interatomic Contacts of Structural Units in PDB entry:
2X4W

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).
This page provides analyses of contacts formed by:

chains
helices
sheets
residues

For analysis of ligand-protein contacts, use:

LPC software

3D structure can be seen in additional window with STING software for 2X4W entry

There are 3 chains in PDB entry 2X4W (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASP 1080	GLY 1204
B	SER 28	VAL 35
B	LYS 37	ARG 40

There are 4 helices in PDB entry 2X4W. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	1124	1139	Right-handed alpha
Helix 2	2	A	1158	1160	Right-handed 310
Helix 3	3	A	1168	1177	Right-handed alpha
Helix 4	4	A	1181	1204	Right-handed alpha

There are 2 sheets in PDB entry 2X4W. Click on sheet of interest to get list of strands forming it: AA, AB,

There are 5 strands in AA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	1154	1157	first strand
Strand 2	A	1143	1147	anti-parallel
Strand 3	A	1099	1104	anti-parallel
Strand 4	A	1088	1091	anti-parallel
Strand 5	A	1162	1164	anti-parallel

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There are 2 strands in AB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	1113	1115	first strand
Strand 2	A	1118	1120	anti-parallel

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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il

Analysis of interatomic Contacts of Structural Units in PDB entry: 2X4W

Analysis of interatomic Contacts of Structural Units in PDB entry:
2X4W