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

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 1LQS entry

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

Chain ID	Initial residue	Terminal residue
R	GLY 2	GLN 208
S	GLY 2	ARG 207
L	THR 8	ARG 157
M	THR 8	ARG 157

There are 27 helices in PDB entry 1LQS. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	R	63	66	Right-handed 310
Helix 2	2	R	68	72	Right-handed 310
Helix 3	3	R	98	100	Right-handed 310
Helix 4	4	R	135	140	Right-handed alpha
Helix 5	5	S	63	72	Right-handed 310
Helix 6	6	S	98	100	Right-handed 310
Helix 7	7	S	135	140	Right-handed alpha
Helix 8	8	L	9	18	Right-handed 310
Helix 9	9	L	19	38	Right-handed alpha
Helix 10	10	L	60	75	Right-handed alpha
Helix 11	11	L	75	84	Right-handed alpha
Helix 12	12	L	87	106	Right-handed alpha
Helix 13	13	L	107	112	Right-handed 310
Helix 14	14	L	116	128	Right-handed alpha
Helix 15	15	L	135	142	Right-handed alpha
Helix 16	16	L	142	157	Right-handed alpha
Helix 17	17	M	9	18	Right-handed 310
Helix 18	18	M	19	38	Right-handed alpha
Helix 19	19	M	60	75	Right-handed alpha
Helix 20	20	M	75	82	Right-handed alpha
Helix 21	21	M	83	83	Right-handed 310
Helix 22	22	M	84	86	Right-handed 310
Helix 23	23	M	87	107	Right-handed alpha
Helix 24	24	M	108	112	Right-handed 310
Helix 25	25	M	117	130	Right-handed alpha
Helix 26	26	M	135	142	Right-handed alpha
Helix 27	27	M	142	157	Right-handed alpha

There are 10 sheets in PDB entry 1LQS. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J,

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	R	59	61	first strand
Strand 2	R	19	24	anti-parallel
Strand 3	R	11	16	anti-parallel
Strand 4	R	102	103	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	R	48	55	first strand
Strand 2	R	35	42	anti-parallel
Strand 3	R	75	83	anti-parallel
Strand 4	R	86	87	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	R	48	55	first strand
Strand 2	R	35	42	anti-parallel
Strand 3	R	75	83	anti-parallel
Strand 4	R	91	92	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	R	108	114	first strand
Strand 2	R	117	123	anti-parallel
Strand 3	R	168	172	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	R	160	164	first strand
Strand 2	R	144	152	anti-parallel
Strand 3	R	179	188	anti-parallel
Strand 4	R	201	204	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	S	59	61	first strand
Strand 2	S	19	24	anti-parallel
Strand 3	S	11	16	anti-parallel
Strand 4	S	102	103	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	S	49	55	first strand
Strand 2	S	35	42	anti-parallel
Strand 3	S	75	83	anti-parallel
Strand 4	S	86	87	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	S	49	55	first strand
Strand 2	S	35	42	anti-parallel
Strand 3	S	75	83	anti-parallel
Strand 4	S	91	92	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	108	114	first strand
Strand 2	S	117	123	anti-parallel
Strand 3	S	168	172	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	S	160	164	first strand
Strand 2	S	144	152	anti-parallel
Strand 3	S	179	188	anti-parallel
Strand 4	S	201	204	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: 1LQS

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