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

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 4CHB entry

There are 4 chains in PDB entry 4CHB (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 306	LYS 591
B	PRO 306	LYS 591
C	GLU 557	HIS 566
D	GLU 557	HIS 566

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

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	C	561	565	Right-handed 310
Helix 2	2	D	561	565	Right-handed 310

There are 16 sheets in PDB entry 4CHB. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, BA, BB, BC, BD, BE, BF, BG, BH,

There are 4 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	332	335	first strand
Strand 2	A	323	327	anti-parallel
Strand 3	A	307	312	anti-parallel
Strand 4	A	585	590	anti-parallel

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There are 4 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	347	351	first strand
Strand 2	A	354	358	anti-parallel
Strand 3	A	370	374	anti-parallel
Strand 4	A	379	383	anti-parallel

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There are 4 strands in AC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	394	398	first strand
Strand 2	A	401	405	anti-parallel
Strand 3	A	417	421	anti-parallel
Strand 4	A	426	430	anti-parallel

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There are 4 strands in AD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	441	445	first strand
Strand 2	A	448	452	anti-parallel
Strand 3	A	466	470	anti-parallel
Strand 4	A	475	478	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	455	456	first strand
Strand 2	A	461	462	anti-parallel

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There are 4 strands in AF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	490	494	first strand
Strand 2	A	497	501	anti-parallel
Strand 3	A	513	516	anti-parallel
Strand 4	A	523	525	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	504	505	first strand
Strand 2	A	508	509	anti-parallel

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There are 4 strands in AH sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	537	541	first strand
Strand 2	A	544	548	anti-parallel
Strand 3	A	560	564	anti-parallel
Strand 4	A	569	572	anti-parallel

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There are 4 strands in BA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	332	336	first strand
Strand 2	B	323	327	anti-parallel
Strand 3	B	307	312	anti-parallel
Strand 4	B	585	590	anti-parallel

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There are 4 strands in BB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	347	351	first strand
Strand 2	B	354	358	anti-parallel
Strand 3	B	370	374	anti-parallel
Strand 4	B	379	383	anti-parallel

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There are 4 strands in BC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	394	398	first strand
Strand 2	B	401	405	anti-parallel
Strand 3	B	417	421	anti-parallel
Strand 4	B	426	430	anti-parallel

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There are 4 strands in BD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	441	445	first strand
Strand 2	B	448	452	anti-parallel
Strand 3	B	466	470	anti-parallel
Strand 4	B	475	478	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	455	456	first strand
Strand 2	B	461	462	anti-parallel

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There are 4 strands in BF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	490	494	first strand
Strand 2	B	497	501	anti-parallel
Strand 3	B	513	516	anti-parallel
Strand 4	B	523	525	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	504	505	first strand
Strand 2	B	508	509	anti-parallel

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There are 4 strands in BH sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	537	541	first strand
Strand 2	B	544	548	anti-parallel
Strand 3	B	560	564	anti-parallel
Strand 4	B	569	572	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: 4CHB

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