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

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 1IMH entry

There are 4 chains in PDB entry 1IMH (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	T 4001	G 4015
B	A 5001	C 5015
C	LYS 188	ASP 468
D	LYS 188	ASP 468

There are 7 helices in PDB entry 1IMH. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	C	297	301	Right-handed 310
Helix 2	2	C	315	321	Right-handed alpha
Helix 3	3	C	419	423	Right-handed 310
Helix 4	4	D	297	301	Right-handed 310
Helix 5	5	D	315	324	Right-handed alpha
Helix 6	6	D	326	330	Right-handed 310
Helix 7	7	D	419	423	Right-handed 310

There are 14 sheets in PDB entry 1IMH. 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, N,

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	C	200	201	first strand
Strand 2	C	204	210	anti-parallel
Strand 3	C	239	243	anti-parallel
Strand 4	C	303	305	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	219	220	first strand
Strand 2	C	309	313	parallel
Strand 3	C	268	272	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	282	286	first strand
Strand 2	C	289	296	anti-parallel
Strand 3	C	249	257	anti-parallel
Strand 4	C	334	344	anti-parallel
Strand 5	C	350	356	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	C	282	286	first strand
Strand 2	C	289	296	anti-parallel
Strand 3	C	249	257	anti-parallel
Strand 4	C	334	344	anti-parallel
Strand 5	C	360	361	anti-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	C	370	374	first strand
Strand 2	C	386	392	anti-parallel
Strand 3	C	427	431	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	378	380	first strand
Strand 2	C	461	466	parallel
Strand 3	C	444	452	anti-parallel
Strand 4	C	399	403	anti-parallel
Strand 5	C	413	416	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	378	380	first strand
Strand 2	C	461	466	parallel
Strand 3	C	444	452	anti-parallel
Strand 4	C	455	456	anti-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	D	200	201	first strand
Strand 2	D	204	210	anti-parallel
Strand 3	D	239	243	anti-parallel
Strand 4	D	303	305	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	282	286	first strand
Strand 2	D	289	296	anti-parallel
Strand 3	D	249	257	anti-parallel
Strand 4	D	334	344	anti-parallel
Strand 5	D	350	356	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	282	286	first strand
Strand 2	D	289	296	anti-parallel
Strand 3	D	249	257	anti-parallel
Strand 4	D	334	344	anti-parallel
Strand 5	D	360	361	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	268	272	first strand
Strand 2	D	309	313	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	370	374	first strand
Strand 2	D	386	392	anti-parallel
Strand 3	D	427	431	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	378	380	first strand
Strand 2	D	461	466	parallel
Strand 3	D	444	452	anti-parallel
Strand 4	D	399	403	anti-parallel
Strand 5	D	413	416	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	378	380	first strand
Strand 2	D	461	466	parallel
Strand 3	D	444	452	anti-parallel
Strand 4	D	455	456	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: 1IMH

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