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

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 4IKP entry

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

Chain ID	Initial residue	Terminal residue
A	GLU 143	TYR 476
B	SER 144	THR 477
C	GLU 143	TYR 476
D	GLU 143	TYR 476

There are 53 helices in PDB entry 4IKP. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	144	153	Right-handed alpha
Helix 2	2	A	155	164	Right-handed alpha
Helix 3	3	A	165	178	Right-handed alpha
Helix 4	4	A	179	183	Right-handed 310
Helix 5	5	A	196	205	Right-handed alpha
Helix 6	6	A	217	229	Right-handed alpha
Helix 7	7	A	267	275	Right-handed alpha
Helix 8	8	A	299	311	Right-handed alpha
Helix 9	9	A	312	315	Right-handed 310
Helix 10	10	A	317	321	Right-handed 310
Helix 11	11	A	323	325	Right-handed 310
Helix 12	12	A	326	336	Right-handed alpha
Helix 13	13	A	344	348	Right-handed 310
Helix 14	14	A	363	367	Right-handed 310
Helix 15	15	B	145	154	Right-handed alpha
Helix 16	16	B	155	164	Right-handed alpha
Helix 17	17	B	165	179	Right-handed alpha
Helix 18	18	B	180	183	Right-handed 310
Helix 19	19	B	196	205	Right-handed alpha
Helix 20	20	B	217	229	Right-handed alpha
Helix 21	21	B	267	275	Right-handed alpha
Helix 22	22	B	299	311	Right-handed alpha
Helix 23	23	B	312	314	Right-handed 310
Helix 24	24	B	323	325	Right-handed 310
Helix 25	25	B	326	336	Right-handed alpha
Helix 26	26	B	344	348	Right-handed 310
Helix 27	27	B	363	367	Right-handed 310
Helix 28	28	C	144	153	Right-handed alpha
Helix 29	29	C	155	164	Right-handed alpha
Helix 30	30	C	165	179	Right-handed alpha
Helix 31	31	C	180	183	Right-handed 310
Helix 32	32	C	196	205	Right-handed alpha
Helix 33	33	C	217	229	Right-handed alpha
Helix 34	34	C	267	275	Right-handed alpha
Helix 35	35	C	299	311	Right-handed alpha
Helix 36	36	C	312	315	Right-handed 310
Helix 37	37	C	317	321	Right-handed 310
Helix 38	38	C	323	325	Right-handed 310
Helix 39	39	C	326	336	Right-handed alpha
Helix 40	40	C	344	348	Right-handed 310
Helix 41	41	C	363	367	Right-handed 310
Helix 42	42	D	144	154	Right-handed alpha
Helix 43	43	D	155	164	Right-handed alpha
Helix 44	44	D	165	179	Right-handed alpha
Helix 45	45	D	180	183	Right-handed 310
Helix 46	46	D	196	205	Right-handed alpha
Helix 47	47	D	217	229	Right-handed alpha
Helix 48	48	D	267	275	Right-handed alpha
Helix 49	49	D	299	311	Right-handed alpha
Helix 50	50	D	323	325	Right-handed 310
Helix 51	51	D	326	336	Right-handed alpha
Helix 52	52	D	344	348	Right-handed 310
Helix 53	53	D	363	367	Right-handed 310

There are 16 sheets in PDB entry 4IKP. 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,

There are 5 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	235	239	first strand
Strand 2	A	209	214	parallel
Strand 3	A	187	191	parallel
Strand 4	A	251	256	parallel
Strand 5	A	279	286	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	353	358	first strand
Strand 2	A	289	297	anti-parallel
Strand 3	A	382	396	anti-parallel
Strand 4	A	401	405	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	A	353	358	first strand
Strand 2	A	289	297	anti-parallel
Strand 3	A	382	396	anti-parallel
Strand 4	A	417	428	anti-parallel
Strand 5	A	339	341	anti-parallel
Strand 6	A	473	474	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	369	377	first strand
Strand 2	A	433	442	anti-parallel
Strand 3	A	448	456	anti-parallel
Strand 4	A	462	468	anti-parallel

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There are 5 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	235	239	first strand
Strand 2	B	209	214	parallel
Strand 3	B	187	191	parallel
Strand 4	B	251	256	parallel
Strand 5	B	279	286	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	B	353	358	first strand
Strand 2	B	289	297	anti-parallel
Strand 3	B	382	396	anti-parallel
Strand 4	B	401	405	anti-parallel

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There are 6 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	353	358	first strand
Strand 2	B	289	297	anti-parallel
Strand 3	B	382	396	anti-parallel
Strand 4	B	417	428	anti-parallel
Strand 5	B	339	341	anti-parallel
Strand 6	B	473	474	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	B	369	377	first strand
Strand 2	B	433	443	anti-parallel
Strand 3	B	447	456	anti-parallel
Strand 4	B	462	468	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	235	239	first strand
Strand 2	C	209	214	parallel
Strand 3	C	187	191	parallel
Strand 4	C	251	256	parallel
Strand 5	C	279	286	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	C	353	358	first strand
Strand 2	C	289	297	anti-parallel
Strand 3	C	382	396	anti-parallel
Strand 4	C	401	405	anti-parallel

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There are 6 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	353	358	first strand
Strand 2	C	289	297	anti-parallel
Strand 3	C	382	396	anti-parallel
Strand 4	C	417	428	anti-parallel
Strand 5	C	339	341	anti-parallel
Strand 6	C	473	474	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	C	369	377	first strand
Strand 2	C	433	442	anti-parallel
Strand 3	C	448	456	anti-parallel
Strand 4	C	462	468	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	235	239	first strand
Strand 2	D	209	214	parallel
Strand 3	D	187	191	parallel
Strand 4	D	251	256	parallel
Strand 5	D	279	286	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	D	353	358	first strand
Strand 2	D	289	297	anti-parallel
Strand 3	D	382	396	anti-parallel
Strand 4	D	401	405	anti-parallel

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There are 6 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	353	358	first strand
Strand 2	D	289	297	anti-parallel
Strand 3	D	382	396	anti-parallel
Strand 4	D	417	428	anti-parallel
Strand 5	D	339	341	anti-parallel
Strand 6	D	473	474	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	D	369	377	first strand
Strand 2	D	433	443	anti-parallel
Strand 3	D	447	456	anti-parallel
Strand 4	D	462	468	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: 4IKP

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