Analysis of interatomic Contacts of Structural Units in PDB entry:
1LK3

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 1LK3 entry

There are 6 chains in PDB entry 1LK3 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASN 21	LYS 157
L	ASP 1	ARG 210
H	GLN 1	ARG 219
B	ASN 21	LYS 157
M	ASP 1	ARG 210
I	GLN 1	ARG 219

There are 35 helices in PDB entry 1LK3. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	22	38	Right-handed alpha
Helix 2	2	A	49	58	Right-handed alpha
Helix 3	3	A	60	75	Right-handed alpha
Helix 4	4	A	75	82	Right-handed alpha
Helix 5	5	A	87	107	Right-handed alpha
Helix 6	6	A	118	142	Right-handed alpha
Helix 7	7	A	142	155	Right-handed alpha
Helix 8	8	L	78	82	Right-handed 310
Helix 9	9	L	120	125	Right-handed alpha
Helix 10	10	L	182	187	Right-handed alpha
Helix 11	11	H	28	32	Right-handed 310
Helix 12	12	H	62	65	Right-handed 310
Helix 13	13	H	74	76	Right-handed 310
Helix 14	14	H	87	91	Right-handed 310
Helix 15	15	H	162	164	Right-handed 310
Helix 16	16	H	192	194	Right-handed 310
Helix 17	17	H	206	209	Right-handed 310
Helix 18	18	B	22	32	Right-handed alpha
Helix 19	19	B	33	38	Right-handed alpha
Helix 20	20	B	49	58	Right-handed alpha
Helix 21	21	B	60	75	Right-handed alpha
Helix 22	22	B	76	82	Right-handed alpha
Helix 23	23	B	83	86	Right-handed 310
Helix 24	24	B	87	106	Right-handed alpha
Helix 25	25	B	118	142	Right-handed alpha
Helix 26	26	B	142	155	Right-handed alpha
Helix 27	27	M	78	82	Right-handed 310
Helix 28	28	M	120	125	Right-handed alpha
Helix 29	29	M	182	186	Right-handed alpha
Helix 30	30	I	28	32	Right-handed 310
Helix 31	31	I	62	65	Right-handed 310
Helix 32	32	I	87	91	Right-handed 310
Helix 33	33	I	162	164	Right-handed 310
Helix 34	34	I	192	194	Right-handed 310
Helix 35	35	I	206	209	Right-handed 310

There are 22 sheets in PDB entry 1LK3. 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, S, T, U, V,

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	L	4	5	first strand
Strand 2	L	18	24	anti-parallel
Strand 3	L	69	74	anti-parallel
Strand 4	L	61	66	anti-parallel

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There are 5 strands in B sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	52	53	first strand
Strand 2	L	44	48	anti-parallel
Strand 3	L	32	37	anti-parallel
Strand 4	L	83	89	anti-parallel
Strand 5	L	96	97	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	52	53	first strand
Strand 2	L	44	48	anti-parallel
Strand 3	L	32	37	anti-parallel
Strand 4	L	83	89	anti-parallel
Strand 5	L	101	105	anti-parallel
Strand 6	L	9	12	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	L	113	117	first strand
Strand 2	L	128	138	anti-parallel
Strand 3	L	172	181	anti-parallel
Strand 4	L	158	162	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	L	152	153	first strand
Strand 2	L	144	149	anti-parallel
Strand 3	L	190	196	anti-parallel
Strand 4	L	204	209	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	H	3	6	first strand
Strand 2	H	18	25	anti-parallel
Strand 3	H	78	83	anti-parallel
Strand 4	H	68	73	anti-parallel

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There are 5 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	103	109	first strand
Strand 2	H	92	100	anti-parallel
Strand 3	H	33	39	anti-parallel
Strand 4	H	45	51	anti-parallel
Strand 5	H	58	60	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	103	109	first strand
Strand 2	H	92	100	anti-parallel
Strand 3	H	113	117	anti-parallel
Strand 4	H	10	12	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	H	126	130	first strand
Strand 2	H	141	151	anti-parallel
Strand 3	H	180	190	anti-parallel
Strand 4	H	169	171	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	126	130	first strand
Strand 2	H	141	151	anti-parallel
Strand 3	H	180	190	anti-parallel
Strand 4	H	175	177	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	H	157	160	first strand
Strand 2	H	200	205	anti-parallel
Strand 3	H	210	215	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	M	4	5	first strand
Strand 2	M	18	24	anti-parallel
Strand 3	M	69	74	anti-parallel
Strand 4	M	61	66	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	M	52	53	first strand
Strand 2	M	44	48	anti-parallel
Strand 3	M	32	37	anti-parallel
Strand 4	M	83	89	anti-parallel
Strand 5	M	96	97	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	52	53	first strand
Strand 2	M	44	48	anti-parallel
Strand 3	M	32	37	anti-parallel
Strand 4	M	83	89	anti-parallel
Strand 5	M	101	105	anti-parallel
Strand 6	M	9	12	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	113	117	first strand
Strand 2	M	128	138	anti-parallel
Strand 3	M	172	181	anti-parallel
Strand 4	M	158	162	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	M	152	153	first strand
Strand 2	M	144	149	anti-parallel
Strand 3	M	190	196	anti-parallel
Strand 4	M	204	209	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	I	3	6	first strand
Strand 2	I	18	25	anti-parallel
Strand 3	I	78	83	anti-parallel
Strand 4	I	68	73	anti-parallel

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There are 5 strands in R sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	58	60	first strand
Strand 2	I	44	51	anti-parallel
Strand 3	I	33	40	anti-parallel
Strand 4	I	92	100	anti-parallel
Strand 5	I	103	109	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	58	60	first strand
Strand 2	I	44	51	anti-parallel
Strand 3	I	33	40	anti-parallel
Strand 4	I	92	100	anti-parallel
Strand 5	I	113	117	anti-parallel
Strand 6	I	10	12	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	126	130	first strand
Strand 2	I	141	151	anti-parallel
Strand 3	I	180	190	anti-parallel
Strand 4	I	169	171	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	126	130	first strand
Strand 2	I	141	151	anti-parallel
Strand 3	I	180	190	anti-parallel
Strand 4	I	175	177	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	157	160	first strand
Strand 2	I	200	205	anti-parallel
Strand 3	I	210	215	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: 1LK3

Analysis of interatomic Contacts of Structural Units in PDB entry:
1LK3