Analysis of interatomic Contacts of Structural Units in PDB entry:
4IMK

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 4IMK entry

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

Chain ID	Initial residue	Terminal residue
A	GLN 1	PRO 229
B	GLN 1	LYS 230
C	GLY 3	CYS 215
D	GLY 3	ARG 212

There are 23 helices in PDB entry 4IMK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	28	30	Right-handed 310
Helix 2	2	A	62	65	Right-handed 310
Helix 3	3	A	74	76	Right-handed 310
Helix 4	4	A	87	91	Right-handed 310
Helix 5	5	A	143	145	Right-handed 310
Helix 6	6	A	172	174	Right-handed 310
Helix 7	7	A	203	205	Right-handed 310
Helix 8	8	A	217	220	Right-handed 310
Helix 9	9	B	28	30	Right-handed 310
Helix 10	10	B	74	76	Right-handed 310
Helix 11	11	B	87	91	Right-handed 310
Helix 12	12	B	102	107	Right-handed alpha
Helix 13	13	B	143	145	Right-handed 310
Helix 14	14	B	172	174	Right-handed 310
Helix 15	15	B	203	207	Right-handed 310
Helix 16	16	B	217	220	Right-handed 310
Helix 17	17	C	26	30	Right-handed 310
Helix 18	18	C	122	127	Right-handed alpha
Helix 19	19	C	184	189	Right-handed alpha
Helix 20	20	D	26	30	Right-handed 310
Helix 21	21	D	78	82	Right-handed 310
Helix 22	22	D	122	128	Right-handed alpha
Helix 23	23	D	184	189	Right-handed alpha

There are 22 sheets in PDB entry 4IMK. 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	A	3	6	first strand
Strand 2	A	18	25	anti-parallel
Strand 3	A	78	83	anti-parallel
Strand 4	A	68	73	anti-parallel

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There are 6 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	10	12	first strand
Strand 2	A	123	127	parallel
Strand 3	A	92	100	anti-parallel
Strand 4	A	32	39	anti-parallel
Strand 5	A	45	51	anti-parallel
Strand 6	A	58	60	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	A	10	12	first strand
Strand 2	A	123	127	parallel
Strand 3	A	92	100	anti-parallel
Strand 4	A	118	119	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	A	136	140	first strand
Strand 2	A	151	161	anti-parallel
Strand 3	A	192	201	anti-parallel
Strand 4	A	179	181	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	A	147	148	first strand
Strand 2	A	151	161	anti-parallel
Strand 3	A	192	201	anti-parallel
Strand 4	A	185	186	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	167	170	first strand
Strand 2	A	210	216	anti-parallel
Strand 3	A	221	227	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	B	3	6	first strand
Strand 2	B	18	25	anti-parallel
Strand 3	B	78	83	anti-parallel
Strand 4	B	68	73	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	B	10	12	first strand
Strand 2	B	123	127	parallel
Strand 3	B	92	100	anti-parallel
Strand 4	B	32	39	anti-parallel
Strand 5	B	46	51	anti-parallel
Strand 6	B	58	60	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	B	10	12	first strand
Strand 2	B	123	127	parallel
Strand 3	B	92	100	anti-parallel
Strand 4	B	118	119	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	B	136	140	first strand
Strand 2	B	151	161	anti-parallel
Strand 3	B	192	201	anti-parallel
Strand 4	B	179	181	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	B	147	148	first strand
Strand 2	B	151	161	anti-parallel
Strand 3	B	192	201	anti-parallel
Strand 4	B	185	186	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	167	170	first strand
Strand 2	B	210	216	anti-parallel
Strand 3	B	221	227	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	C	9	12	first strand
Strand 2	C	103	107	parallel
Strand 3	C	84	91	anti-parallel
Strand 4	C	33	37	anti-parallel
Strand 5	C	44	47	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	C	9	12	first strand
Strand 2	C	103	107	parallel
Strand 3	C	84	91	anti-parallel
Strand 4	C	96	99	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	C	18	23	first strand
Strand 2	C	69	74	anti-parallel
Strand 3	C	61	66	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	C	115	119	first strand
Strand 2	C	130	140	anti-parallel
Strand 3	C	174	183	anti-parallel
Strand 4	C	160	164	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	C	154	155	first strand
Strand 2	C	146	151	anti-parallel
Strand 3	C	192	198	anti-parallel
Strand 4	C	206	211	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	D	9	12	first strand
Strand 2	D	103	107	parallel
Strand 3	D	83	90	anti-parallel
Strand 4	D	32	37	anti-parallel
Strand 5	D	44	47	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	9	12	first strand
Strand 2	D	103	107	parallel
Strand 3	D	83	90	anti-parallel
Strand 4	D	97	99	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	18	23	first strand
Strand 2	D	69	74	anti-parallel
Strand 3	D	61	66	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	D	115	119	first strand
Strand 2	D	130	140	anti-parallel
Strand 3	D	174	183	anti-parallel
Strand 4	D	160	164	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	154	155	first strand
Strand 2	D	146	151	anti-parallel
Strand 3	D	193	198	anti-parallel
Strand 4	D	206	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: 4IMK

Analysis of interatomic Contacts of Structural Units in PDB entry:
4IMK