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

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 3IDX entry

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

Chain ID	Initial residue	Terminal residue
G	GLU 83	GLU 492
H	GLN 1	CYS 216
L	ASP 1	GLU 213

There are 13 helices in PDB entry 3IDX. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	G	98	108	Right-handed alpha
Helix 2	2	G	335	354	Right-handed alpha
Helix 3	3	G	368	373	Right-handed alpha
Helix 4	4	G	424	427	Right-handed 310
Helix 5	5	G	474	484	Right-handed alpha
Helix 6	6	H	28	32	Right-handed 310
Helix 7	7	H	61	64	Right-handed 310
Helix 8	8	H	83	87	Right-handed 310
Helix 9	9	H	156	158	Right-handed 310
Helix 10	10	H	201	204	Right-handed 310
Helix 11	11	L	79	83	Right-handed 310
Helix 12	12	L	121	126	Right-handed alpha
Helix 13	13	L	183	187	Right-handed alpha

There are 18 sheets in PDB entry 3IDX. 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 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	G	84	86	first strand
Strand 2	G	242	245	anti-parallel
Strand 3	G	223	228	anti-parallel
Strand 4	G	486	490	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	91	94	first strand
Strand 2	G	236	239	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	112	116	first strand
Strand 2	G	208	212	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	119	124	first strand
Strand 2	G	199	204	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	259	261	first strand
Strand 2	G	447	456	anti-parallel
Strand 3	G	284	297	anti-parallel
Strand 4	G	330	334	anti-parallel
Strand 5	G	413	422	anti-parallel
Strand 6	G	381	385	anti-parallel
Strand 7	G	374	378	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	G	271	274	first strand
Strand 2	G	284	297	anti-parallel
Strand 3	G	447	456	anti-parallel
Strand 4	G	465	470	anti-parallel
Strand 5	G	358	361	parallel
Strand 6	G	393	395	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	429	430	first strand
Strand 2	G	433	434	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	H	3	7	first strand
Strand 2	H	18	25	anti-parallel
Strand 3	H	77	82	anti-parallel
Strand 4	H	67	72	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	H	10	12	first strand
Strand 2	H	107	111	parallel
Strand 3	H	88	95	anti-parallel
Strand 4	H	34	39	anti-parallel
Strand 5	H	45	51	anti-parallel
Strand 6	H	57	59	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	H	10	12	first strand
Strand 2	H	107	111	parallel
Strand 3	H	88	95	anti-parallel
Strand 4	H	100	103	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	120	124	first strand
Strand 2	H	135	145	anti-parallel
Strand 3	H	176	185	anti-parallel
Strand 4	H	164	165	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	120	124	first strand
Strand 2	H	135	145	anti-parallel
Strand 3	H	176	185	anti-parallel
Strand 4	H	169	170	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	151	154	first strand
Strand 2	H	195	200	anti-parallel
Strand 3	H	205	210	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	L	4	7	first strand
Strand 2	L	19	25	anti-parallel
Strand 3	L	70	75	anti-parallel
Strand 4	L	62	67	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	10	13	first strand
Strand 2	L	102	106	parallel
Strand 3	L	84	90	anti-parallel
Strand 4	L	33	38	anti-parallel
Strand 5	L	45	49	anti-parallel
Strand 6	L	53	54	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	10	13	first strand
Strand 2	L	102	106	parallel
Strand 3	L	84	90	anti-parallel
Strand 4	L	96	97	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	114	118	first strand
Strand 2	L	129	139	anti-parallel
Strand 3	L	173	182	anti-parallel
Strand 4	L	159	163	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	153	154	first strand
Strand 2	L	145	150	anti-parallel
Strand 3	L	191	197	anti-parallel
Strand 4	L	205	210	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: 3IDX

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