Analysis of interatomic Contacts of Structural Units in PDB entry:
4I9X

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 4I9X entry

There are 4 chains in PDB entry 4I9X (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 32	PRO 244
B	PRO 32	ASP 246
C	GLU 78	GLU 182
D	SER 75	GLU 182

There are 6 helices in PDB entry 4I9X. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	46	51	Right-handed alpha
Helix 2	2	A	191	193	Right-handed 310
Helix 3	3	A	234	239	Right-handed alpha
Helix 4	4	B	46	51	Right-handed alpha
Helix 5	5	B	191	195	Right-handed 310
Helix 6	6	B	234	239	Right-handed alpha

There are 18 sheets in PDB entry 4I9X. 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, O, P, Q, R,

There are 3 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	40	43	first strand
Strand 2	A	150	160	parallel
Strand 3	A	55	56	parallel

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There are 6 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	40	43	first strand
Strand 2	A	150	160	parallel
Strand 3	A	139	146	anti-parallel
Strand 4	A	76	83	anti-parallel
Strand 5	A	91	96	anti-parallel
Strand 6	A	102	105	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	62	70	first strand
Strand 2	A	124	132	anti-parallel
Strand 3	A	115	120	anti-parallel

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There are 3 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	162	165	first strand
Strand 2	A	209	213	anti-parallel
Strand 3	A	195	198	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	B	40	43	first strand
Strand 2	B	150	160	parallel
Strand 3	B	55	56	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	B	40	43	first strand
Strand 2	B	150	160	parallel
Strand 3	B	139	146	anti-parallel
Strand 4	B	76	83	anti-parallel
Strand 5	B	91	96	anti-parallel
Strand 6	B	102	105	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	62	70	first strand
Strand 2	B	124	132	anti-parallel
Strand 3	B	115	120	anti-parallel

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There are 3 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	163	165	first strand
Strand 2	B	209	212	anti-parallel
Strand 3	B	196	198	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	85	87	first strand
Strand 2	C	94	96	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	102	103	first strand
Strand 2	C	114	115	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	C	123	127	first strand
Strand 2	C	136	139	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	C	143	145	first strand
Strand 2	C	153	155	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	164	166	first strand
Strand 2	C	178	180	anti-parallel

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There are 2 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	85	87	first strand
Strand 2	D	94	96	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	102	103	first strand
Strand 2	D	114	115	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	123	127	first strand
Strand 2	D	136	139	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	143	145	first strand
Strand 2	D	153	155	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	164	168	first strand
Strand 2	D	177	180	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: 4I9X

Analysis of interatomic Contacts of Structural Units in PDB entry:
4I9X