Analysis of interatomic Contacts of Structural Units in PDB entry:
1K4R

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 1K4R entry

There are 3 chains in PDB entry 1K4R (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	SER 1	LYS 395
B	SER 1	LYS 395
C	SER 1	LYS 395

There are 24 helices in PDB entry 1K4R. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	1	6	Right-handed 310
Helix 2	2	A	82	87	Right-handed 310
Helix 3	3	A	100	104	Right-handed 310
Helix 4	4	A	177	179	Right-handed 310
Helix 5	5	A	188	191	Right-handed 310
Helix 6	6	A	217	222	Right-handed alpha
Helix 7	7	A	237	240	Right-handed 310
Helix 8	8	A	260	268	Right-handed alpha
Helix 9	9	B	1	6	Right-handed 310
Helix 10	10	B	82	87	Right-handed 310
Helix 11	11	B	100	104	Right-handed 310
Helix 12	12	B	177	179	Right-handed 310
Helix 13	13	B	188	191	Right-handed 310
Helix 14	14	B	217	222	Right-handed alpha
Helix 15	15	B	237	240	Right-handed 310
Helix 16	16	B	260	268	Right-handed alpha
Helix 17	17	C	1	6	Right-handed 310
Helix 18	18	C	82	87	Right-handed 310
Helix 19	19	C	100	104	Right-handed 310
Helix 20	20	C	177	179	Right-handed 310
Helix 21	21	C	188	191	Right-handed 310
Helix 22	22	C	217	222	Right-handed alpha
Helix 23	23	C	237	240	Right-handed 310
Helix 24	24	C	260	268	Right-handed alpha

There are 24 sheets in PDB entry 1K4R. 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, W, X,

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	161	165	first strand
Strand 2	A	138	145	anti-parallel
Strand 3	A	38	51	anti-parallel
Strand 4	A	31	35	anti-parallel
Strand 5	A	10	14	parallel

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There are 10 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	161	165	first strand
Strand 2	A	138	145	anti-parallel
Strand 3	A	38	51	anti-parallel
Strand 4	A	280	282	anti-parallel
Strand 5	A	273	277	anti-parallel
Strand 6	A	212	216	anti-parallel
Strand 7	A	197	201	anti-parallel
Strand 8	A	126	131	anti-parallel
Strand 9	A	54	60	anti-parallel
Strand 10	A	227	228	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	20	26	first strand
Strand 2	A	287	293	anti-parallel
Strand 3	A	181	187	anti-parallel
Strand 4	A	171	175	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	A	63	72	first strand
Strand 2	A	109	121	anti-parallel
Strand 3	A	90	99	anti-parallel

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There are 2 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	242	244	first strand
Strand 2	A	254	256	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	A	312	320	first strand
Strand 2	A	326	332	anti-parallel
Strand 3	A	371	375	anti-parallel
Strand 4	A	356	357	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	A	338	339	first strand
Strand 2	A	363	365	anti-parallel
Strand 3	A	368	369	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	342	346	first strand
Strand 2	A	379	385	anti-parallel
Strand 3	A	388	394	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	B	161	165	first strand
Strand 2	B	138	145	anti-parallel
Strand 3	B	38	51	anti-parallel
Strand 4	B	31	35	anti-parallel
Strand 5	B	10	14	parallel

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There are 10 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	161	165	first strand
Strand 2	B	138	145	anti-parallel
Strand 3	B	38	51	anti-parallel
Strand 4	B	280	282	anti-parallel
Strand 5	B	273	277	anti-parallel
Strand 6	B	212	216	anti-parallel
Strand 7	B	197	201	anti-parallel
Strand 8	B	126	131	anti-parallel
Strand 9	B	54	60	anti-parallel
Strand 10	B	227	228	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	20	26	first strand
Strand 2	B	287	293	anti-parallel
Strand 3	B	181	187	anti-parallel
Strand 4	B	171	175	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	63	72	first strand
Strand 2	B	109	121	anti-parallel
Strand 3	B	90	99	anti-parallel

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There are 2 strands in M sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	242	244	first strand
Strand 2	B	254	256	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	B	312	320	first strand
Strand 2	B	326	332	anti-parallel
Strand 3	B	371	375	anti-parallel
Strand 4	B	356	357	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	B	338	339	first strand
Strand 2	B	363	365	anti-parallel
Strand 3	B	368	369	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	342	346	first strand
Strand 2	B	379	385	anti-parallel
Strand 3	B	388	394	anti-parallel

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There are 5 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	161	165	first strand
Strand 2	C	138	145	anti-parallel
Strand 3	C	38	51	anti-parallel
Strand 4	C	31	35	anti-parallel
Strand 5	C	10	14	parallel

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There are 10 strands in R sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	161	165	first strand
Strand 2	C	138	145	anti-parallel
Strand 3	C	38	51	anti-parallel
Strand 4	C	280	282	anti-parallel
Strand 5	C	273	277	anti-parallel
Strand 6	C	212	216	anti-parallel
Strand 7	C	197	201	anti-parallel
Strand 8	C	126	131	anti-parallel
Strand 9	C	54	60	anti-parallel
Strand 10	C	227	228	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	C	20	26	first strand
Strand 2	C	287	293	anti-parallel
Strand 3	C	181	187	anti-parallel
Strand 4	C	171	175	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	C	63	72	first strand
Strand 2	C	109	121	anti-parallel
Strand 3	C	90	99	anti-parallel

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There are 2 strands in U sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	242	244	first strand
Strand 2	C	254	256	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	C	312	320	first strand
Strand 2	C	326	332	anti-parallel
Strand 3	C	371	375	anti-parallel
Strand 4	C	356	357	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	338	339	first strand
Strand 2	C	363	365	anti-parallel
Strand 3	C	368	369	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	342	346	first strand
Strand 2	C	379	385	anti-parallel
Strand 3	C	388	394	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: 1K4R

Analysis of interatomic Contacts of Structural Units in PDB entry:
1K4R