Analysis of interatomic Contacts of Structural Units in PDB entry:
1N4X

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 1N4X entry

There are 4 chains in PDB entry 1N4X (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
L	MET 0	ALA 112
H	GLU 301	ALA 420
M	MET 0	ALA 112
I	GLU 301	SER 419

There are 9 helices in PDB entry 1N4X. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	L	84	88	Right-handed 310
Helix 2	2	H	328	332	Right-handed 310
Helix 3	3	H	374	376	Right-handed 310
Helix 4	4	H	387	391	Right-handed 310
Helix 5	5	M	84	88	Right-handed 310
Helix 6	6	I	328	332	Right-handed 310
Helix 7	7	I	362	365	Right-handed 310
Helix 8	8	I	374	376	Right-handed 310
Helix 9	9	I	387	391	Right-handed 310

There are 12 sheets in PDB entry 1N4X. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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	L	4	7	first strand
Strand 2	L	19	25	anti-parallel
Strand 3	L	75	80	anti-parallel
Strand 4	L	67	71	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	58	59	first strand
Strand 2	L	50	54	anti-parallel
Strand 3	L	38	43	anti-parallel
Strand 4	L	89	95	anti-parallel
Strand 5	L	102	103	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	58	59	first strand
Strand 2	L	50	54	anti-parallel
Strand 3	L	38	43	anti-parallel
Strand 4	L	89	95	anti-parallel
Strand 5	L	107	111	anti-parallel
Strand 6	L	10	13	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	303	306	first strand
Strand 2	H	318	325	anti-parallel
Strand 3	H	378	383	anti-parallel
Strand 4	H	368	373	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	357	360	first strand
Strand 2	H	345	352	anti-parallel
Strand 3	H	334	339	anti-parallel
Strand 4	H	392	399	anti-parallel
Strand 5	H	407	410	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	357	360	first strand
Strand 2	H	345	352	anti-parallel
Strand 3	H	334	339	anti-parallel
Strand 4	H	392	399	anti-parallel
Strand 5	H	414	418	anti-parallel
Strand 6	H	310	312	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	M	4	7	first strand
Strand 2	M	19	25	anti-parallel
Strand 3	M	75	80	anti-parallel
Strand 4	M	67	72	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	58	59	first strand
Strand 2	M	50	54	anti-parallel
Strand 3	M	38	43	anti-parallel
Strand 4	M	89	95	anti-parallel
Strand 5	M	102	103	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	58	59	first strand
Strand 2	M	50	54	anti-parallel
Strand 3	M	38	43	anti-parallel
Strand 4	M	89	95	anti-parallel
Strand 5	M	107	111	anti-parallel
Strand 6	M	10	13	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	I	303	306	first strand
Strand 2	I	318	325	anti-parallel
Strand 3	I	378	383	anti-parallel
Strand 4	I	368	373	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	358	360	first strand
Strand 2	I	345	351	anti-parallel
Strand 3	I	334	339	anti-parallel
Strand 4	I	392	399	anti-parallel
Strand 5	I	407	410	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	358	360	first strand
Strand 2	I	345	351	anti-parallel
Strand 3	I	334	339	anti-parallel
Strand 4	I	392	399	anti-parallel
Strand 5	I	414	418	anti-parallel
Strand 6	I	310	312	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: 1N4X

Analysis of interatomic Contacts of Structural Units in PDB entry:
1N4X