Analysis of interatomic Contacts of Structural Units in PDB entry:
6SIR

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 6SIR entry

There are 4 chains in PDB entry 6SIR (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 445	LYS 626
B	ALA 445	LYS 626
D	ALA 445	LYS 626
C	ALA 445	LYS 626

There are 20 helices in PDB entry 6SIR. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	460	467	Right-handed alpha
Helix 2	AA2	A	469	492	Right-handed alpha
Helix 3	AA3	A	515	534	Right-handed alpha
Helix 4	AA4	A	569	581	Right-handed alpha
Helix 5	AA5	A	590	598	Right-handed alpha
Helix 6	AA6	B	460	468	Right-handed alpha
Helix 7	AA7	B	469	492	Right-handed alpha
Helix 8	AA8	B	515	534	Right-handed alpha
Helix 9	AA9	B	569	581	Right-handed alpha
Helix 10	AB1	B	591	598	Right-handed alpha
Helix 11	AB2	D	460	468	Right-handed alpha
Helix 12	AB3	D	469	492	Right-handed alpha
Helix 13	AB4	D	515	534	Right-handed alpha
Helix 14	AB5	D	569	581	Right-handed alpha
Helix 15	AB6	D	590	598	Right-handed alpha
Helix 16	AB7	C	460	467	Right-handed alpha
Helix 17	AB8	C	469	492	Right-handed alpha
Helix 18	AB9	C	515	534	Right-handed alpha
Helix 19	AC1	C	569	581	Right-handed alpha
Helix 20	AC2	C	590	598	Right-handed alpha

There are 12 sheets in PDB entry 6SIR. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3,

There are 5 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	494	499	first strand
Strand 2	A	502	507	anti-parallel
Strand 3	A	446	458	anti-parallel
Strand 4	A	544	558	anti-parallel
Strand 5	A	564	568	anti-parallel

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There are 7 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	494	499	first strand
Strand 2	A	502	507	anti-parallel
Strand 3	A	446	458	anti-parallel
Strand 4	A	544	558	anti-parallel
Strand 5	A	587	589	parallel
Strand 6	A	620	625	anti-parallel
Strand 7	A	601	605	anti-parallel

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There are 2 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	609	611	first strand
Strand 2	A	615	617	anti-parallel

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There are 5 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	494	499	first strand
Strand 2	B	502	507	anti-parallel
Strand 3	B	446	458	anti-parallel
Strand 4	B	544	558	anti-parallel
Strand 5	B	564	568	anti-parallel

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There are 7 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	494	499	first strand
Strand 2	B	502	507	anti-parallel
Strand 3	B	446	458	anti-parallel
Strand 4	B	544	558	anti-parallel
Strand 5	B	587	590	parallel
Strand 6	B	619	625	anti-parallel
Strand 7	B	601	605	anti-parallel

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There are 2 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	609	611	first strand
Strand 2	B	615	617	anti-parallel

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There are 5 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	494	499	first strand
Strand 2	D	502	507	anti-parallel
Strand 3	D	446	458	anti-parallel
Strand 4	D	544	558	anti-parallel
Strand 5	D	564	568	anti-parallel

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There are 7 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	494	499	first strand
Strand 2	D	502	507	anti-parallel
Strand 3	D	446	458	anti-parallel
Strand 4	D	544	558	anti-parallel
Strand 5	D	587	589	parallel
Strand 6	D	620	625	anti-parallel
Strand 7	D	601	605	anti-parallel

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There are 2 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	609	611	first strand
Strand 2	D	615	617	anti-parallel

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There are 5 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	494	499	first strand
Strand 2	C	502	507	anti-parallel
Strand 3	C	446	458	anti-parallel
Strand 4	C	544	558	anti-parallel
Strand 5	C	564	568	anti-parallel

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There are 7 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	494	499	first strand
Strand 2	C	502	507	anti-parallel
Strand 3	C	446	458	anti-parallel
Strand 4	C	544	558	anti-parallel
Strand 5	C	587	589	parallel
Strand 6	C	620	625	anti-parallel
Strand 7	C	601	605	anti-parallel

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There are 2 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	609	610	first strand
Strand 2	C	616	617	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: 6SIR

Analysis of interatomic Contacts of Structural Units in PDB entry:
6SIR