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

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 3NQI entry

There are 4 chains in PDB entry 3NQI (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 30	GLU 267
B	GLN 31	GLU 267
C	PRO 30	GLU 267
D	GLN 31	GLU 267

There are 16 helices in PDB entry 3NQI. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	158	167	Right-handed alpha
Helix 2	2	A	178	180	Right-handed 310
Helix 3	3	A	198	205	Right-handed alpha
Helix 4	4	A	217	229	Right-handed alpha
Helix 5	5	B	158	167	Right-handed alpha
Helix 6	6	B	178	180	Right-handed 310
Helix 7	7	B	198	205	Right-handed alpha
Helix 8	8	B	217	229	Right-handed alpha
Helix 9	9	C	158	167	Right-handed alpha
Helix 10	10	C	178	180	Right-handed 310
Helix 11	11	C	198	205	Right-handed alpha
Helix 12	12	C	217	229	Right-handed alpha
Helix 13	13	D	158	167	Right-handed alpha
Helix 14	14	D	178	180	Right-handed 310
Helix 15	15	D	198	205	Right-handed alpha
Helix 16	16	D	217	229	Right-handed alpha

There are 15 sheets in PDB entry 3NQI. 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 7 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	99	100	first strand
Strand 2	A	70	77	anti-parallel
Strand 3	A	89	94	anti-parallel
Strand 4	A	55	58	parallel
Strand 5	A	45	49	anti-parallel
Strand 6	A	32	42	anti-parallel
Strand 7	A	70	77	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	A	102	103	first strand
Strand 2	A	207	216	parallel
Strand 3	A	144	153	anti-parallel
Strand 4	A	138	141	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	A	105	108	first strand
Strand 2	A	169	176	parallel
Strand 3	A	186	195	anti-parallel
Strand 4	A	235	242	parallel
Strand 5	A	255	262	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	A	128	130	first strand
Strand 2	A	133	135	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	B	99	100	first strand
Strand 2	B	70	77	anti-parallel
Strand 3	B	89	94	anti-parallel
Strand 4	B	55	58	parallel
Strand 5	B	45	49	anti-parallel
Strand 6	B	32	42	anti-parallel
Strand 7	B	70	77	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	B	105	108	first strand
Strand 2	B	169	176	parallel
Strand 3	B	186	195	anti-parallel
Strand 4	B	235	242	parallel
Strand 5	B	255	262	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	138	141	first strand
Strand 2	B	144	153	anti-parallel
Strand 3	B	207	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	99	100	first strand
Strand 2	C	70	77	anti-parallel
Strand 3	C	89	94	anti-parallel
Strand 4	C	55	58	parallel
Strand 5	C	45	49	anti-parallel
Strand 6	C	32	42	anti-parallel
Strand 7	C	70	77	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	C	105	108	first strand
Strand 2	C	169	176	parallel
Strand 3	C	186	195	anti-parallel
Strand 4	C	235	242	parallel
Strand 5	C	255	262	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	128	130	first strand
Strand 2	C	133	135	anti-parallel

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There are 3 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	138	141	first strand
Strand 2	C	144	153	anti-parallel
Strand 3	C	207	216	anti-parallel

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There are 7 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	99	100	first strand
Strand 2	D	70	77	anti-parallel
Strand 3	D	89	94	anti-parallel
Strand 4	D	55	58	parallel
Strand 5	D	45	49	anti-parallel
Strand 6	D	32	42	anti-parallel
Strand 7	D	70	77	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	105	108	first strand
Strand 2	D	169	176	parallel
Strand 3	D	186	195	anti-parallel
Strand 4	D	235	242	parallel
Strand 5	D	255	262	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	128	130	first strand
Strand 2	D	133	135	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	D	138	139	first strand
Strand 2	D	144	153	anti-parallel
Strand 3	D	207	216	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: 3NQI

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