Analysis of interatomic Contacts of Structural Units in PDB entry:
3IPK

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 3IPK entry

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

Chain ID	Initial residue	Terminal residue
A	ALA 386	ARG 874
B	ALA 386	ARG 874

There are 26 helices in PDB entry 3IPK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	386	492	Right-handed alpha
Helix 2	2	A	493	495	Right-handed 310
Helix 3	3	A	529	538	Right-handed alpha
Helix 4	4	A	539	541	Right-handed 310
Helix 5	5	A	542	547	Right-handed alpha
Helix 6	6	A	552	556	Right-handed 310
Helix 7	7	A	557	562	Right-handed 310
Helix 8	8	A	563	567	Right-handed 310
Helix 9	9	A	577	581	Right-handed 310
Helix 10	10	A	650	653	Right-handed 310
Helix 11	11	A	766	771	Right-handed 310
Helix 12	12	A	791	793	Right-handed 310
Helix 13	13	A	795	799	Right-handed 310
Helix 14	14	B	386	492	Right-handed alpha
Helix 15	15	B	493	495	Right-handed 310
Helix 16	16	B	529	538	Right-handed alpha
Helix 17	17	B	539	541	Right-handed 310
Helix 18	18	B	542	547	Right-handed alpha
Helix 19	19	B	552	556	Right-handed 310
Helix 20	20	B	557	562	Right-handed 310
Helix 21	21	B	563	565	Right-handed 310
Helix 22	22	B	577	581	Right-handed 310
Helix 23	23	B	650	653	Right-handed 310
Helix 24	24	B	766	771	Right-handed 310
Helix 25	25	B	790	794	Right-handed alpha
Helix 26	26	B	795	799	Right-handed 310

There are 13 sheets in PDB entry 3IPK. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M,

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	509	510	first strand
Strand 2	A	617	618	anti-parallel
Strand 3	A	621	632	anti-parallel
Strand 4	A	669	680	anti-parallel
Strand 5	A	781	789	anti-parallel
Strand 6	A	704	709	anti-parallel
Strand 7	A	700	701	anti-parallel

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There are 8 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	518	523	first strand
Strand 2	A	605	611	anti-parallel
Strand 3	A	621	632	anti-parallel
Strand 4	A	669	680	anti-parallel
Strand 5	A	781	789	anti-parallel
Strand 6	A	704	709	anti-parallel
Strand 7	A	729	732	anti-parallel
Strand 8	A	723	726	anti-parallel

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There are 3 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	526	527	first strand
Strand 2	A	594	600	anti-parallel
Strand 3	A	573	575	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	526	527	first strand
Strand 2	A	594	600	anti-parallel
Strand 3	A	643	648	anti-parallel
Strand 4	A	655	658	anti-parallel
Strand 5	A	814	817	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	550	551	first strand
Strand 2	A	584	585	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	A	714	716	first strand
Strand 2	A	772	778	anti-parallel
Strand 3	A	688	695	anti-parallel
Strand 4	A	819	820	anti-parallel

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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	509	510	first strand
Strand 2	B	617	618	anti-parallel
Strand 3	B	621	622	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	518	523	first strand
Strand 2	B	605	611	anti-parallel
Strand 3	B	625	632	anti-parallel
Strand 4	B	669	679	anti-parallel
Strand 5	B	781	789	anti-parallel
Strand 6	B	704	709	anti-parallel
Strand 7	B	700	701	anti-parallel

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There are 8 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	518	523	first strand
Strand 2	B	605	611	anti-parallel
Strand 3	B	625	632	anti-parallel
Strand 4	B	669	679	anti-parallel
Strand 5	B	781	789	anti-parallel
Strand 6	B	704	709	anti-parallel
Strand 7	B	729	732	anti-parallel
Strand 8	B	723	726	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	567	568	first strand
Strand 2	B	526	528	anti-parallel
Strand 3	B	594	600	anti-parallel
Strand 4	B	573	575	anti-parallel

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There are 6 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	567	568	first strand
Strand 2	B	526	528	anti-parallel
Strand 3	B	594	600	anti-parallel
Strand 4	B	643	648	anti-parallel
Strand 5	B	655	658	anti-parallel
Strand 6	B	814	817	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	550	551	first strand
Strand 2	B	584	585	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	714	716	first strand
Strand 2	B	772	778	anti-parallel
Strand 3	B	688	695	anti-parallel
Strand 4	B	819	820	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: 3IPK

Analysis of interatomic Contacts of Structural Units in PDB entry:
3IPK