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

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 1NCD entry

There are 3 chains in PDB entry 1NCD (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
N	ILE 81	LEU 468
L	ASP 1	CYS 214
H	GLN 1	GLY 227

There are 4 helices in PDB entry 1NCD. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	H1	N	104	111	Right-handed alpha
Helix 2	H2	N	142	146	Right-handed alpha
Helix 3	H3	N	381	385	Right-handed alpha
Helix 4	H4	N	463	468	Right-handed alpha

There are 15 sheets in PDB entry 1NCD. 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,

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	N	96	102	first strand
Strand 2	N	439	449	anti-parallel
Strand 3	N	421	429	anti-parallel
Strand 4	N	407	410	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	115	125	first strand
Strand 2	N	128	139	anti-parallel
Strand 3	N	157	162	anti-parallel
Strand 4	N	172	176	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	179	184	first strand
Strand 2	N	189	195	anti-parallel
Strand 3	N	202	207	anti-parallel
Strand 4	N	211	216	anti-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	N	224	225	first strand
Strand 2	N	236	244	anti-parallel
Strand 3	N	250	258	anti-parallel
Strand 4	N	261	267	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	276	283	first strand
Strand 2	N	286	292	anti-parallel
Strand 3	N	301	306	anti-parallel
Strand 4	N	311	316	anti-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	N	353	354	first strand
Strand 2	N	361	364	anti-parallel
Strand 3	N	372	378	anti-parallel
Strand 4	N	392	403	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	L	4	6	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 H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	10	14	first strand
Strand 2	L	102	107	parallel
Strand 3	L	84	90	anti-parallel
Strand 4	L	33	38	anti-parallel
Strand 5	L	44	49	anti-parallel
Strand 6	L	53	54	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	153	155	first strand
Strand 2	L	144	150	anti-parallel
Strand 3	L	192	198	anti-parallel
Strand 4	L	205	209	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	3	6	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 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	57	59	first strand
Strand 2	H	44	51	anti-parallel
Strand 3	H	34	40	anti-parallel
Strand 4	H	88	95	anti-parallel

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There are 6 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	57	59	first strand
Strand 2	H	44	51	anti-parallel
Strand 3	H	34	40	anti-parallel
Strand 4	H	88	95	anti-parallel
Strand 5	H	107	111	anti-parallel
Strand 6	H	10	12	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	H	120	124	first strand
Strand 2	H	137	147	anti-parallel
Strand 3	H	184	194	anti-parallel
Strand 4	H	172	179	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	153	157	first strand
Strand 2	H	206	212	anti-parallel
Strand 3	H	217	222	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: 1NCD

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