Analysis of interatomic Contacts of Structural Units in PDB entry:
3K1B

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 3K1B entry

There are 4 chains in PDB entry 3K1B (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 1	PHE 340
B	ALA 1	PHE 340
C	ALA 1	PHE 340
D	ALA 1	PHE 340

There are 17 helices in PDB entry 3K1B. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	105	110	Right-handed alpha
Helix 2	2	A	111	113	Right-handed 310
Helix 3	3	A	165	169	Right-handed 310
Helix 4	4	A	197	202	Right-handed alpha
Helix 5	5	B	105	110	Right-handed alpha
Helix 6	6	B	111	113	Right-handed 310
Helix 7	7	B	142	147	Right-handed alpha
Helix 8	8	B	165	169	Right-handed 310
Helix 9	9	B	197	202	Right-handed alpha
Helix 10	10	C	72	77	Right-handed 310
Helix 11	11	C	105	110	Right-handed alpha
Helix 12	12	C	127	131	Right-handed 310
Helix 13	13	C	165	169	Right-handed 310
Helix 14	14	C	197	202	Right-handed alpha
Helix 15	15	D	105	111	Right-handed alpha
Helix 16	16	D	143	147	Right-handed 310
Helix 17	17	D	197	202	Right-handed alpha

There are 12 sheets in PDB entry 3K1B. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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	36	37	first strand
Strand 2	A	10	24	anti-parallel
Strand 3	A	40	49	anti-parallel
Strand 4	A	63	66	anti-parallel
Strand 5	A	80	81	anti-parallel

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There are 8 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	40	49	first strand
Strand 2	A	55	60	anti-parallel
Strand 3	A	80	81	first strand
Strand 4	A	84	90	first strand
Strand 5	A	94	102	anti-parallel
Strand 6	A	132	140	anti-parallel
Strand 7	A	151	155	anti-parallel
Strand 8	A	173	182	anti-parallel

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There are 14 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	132	140	first strand
Strand 2	A	157	158	anti-parallel
Strand 3	A	173	182	anti-parallel
Strand 4	A	185	195	anti-parallel
Strand 5	A	210	219	anti-parallel
Strand 6	A	225	235	anti-parallel
Strand 7	A	253	263	anti-parallel
Strand 8	A	269	275	anti-parallel
Strand 9	A	253	263	anti-parallel
Strand 10	A	277	283	anti-parallel
Strand 11	A	287	301	anti-parallel
Strand 12	A	309	316	anti-parallel
Strand 13	A	331	340	anti-parallel
Strand 14	A	10	24	anti-parallel

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There are 2 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	239	241	first strand
Strand 2	A	248	250	anti-parallel

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There are 7 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	2	6	first strand
Strand 2	B	9	13	anti-parallel
Strand 3	B	40	52	anti-parallel
Strand 4	B	16	19	anti-parallel
Strand 5	B	331	338	anti-parallel
Strand 6	B	21	24	anti-parallel
Strand 7	B	36	37	anti-parallel

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There are 19 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	2	6	first strand
Strand 2	B	9	13	anti-parallel
Strand 3	B	40	52	anti-parallel
Strand 4	B	55	64	anti-parallel
Strand 5	B	80	90	anti-parallel
Strand 6	B	97	100	anti-parallel
Strand 7	B	136	141	anti-parallel
Strand 8	B	151	158	anti-parallel
Strand 9	B	173	182	anti-parallel
Strand 10	B	185	195	anti-parallel
Strand 11	B	210	222	anti-parallel
Strand 12	B	225	235	anti-parallel
Strand 13	B	253	263	anti-parallel
Strand 14	B	269	283	anti-parallel
Strand 15	B	287	301	anti-parallel
Strand 16	B	309	316	anti-parallel
Strand 17	B	331	338	anti-parallel
Strand 18	B	21	24	anti-parallel
Strand 19	B	36	37	anti-parallel

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There are 2 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	239	241	first strand
Strand 2	B	248	250	anti-parallel

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There are 22 strands in H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	36	37	first strand
Strand 2	C	9	24	anti-parallel
Strand 3	C	2	6	anti-parallel
Strand 4	C	9	24	anti-parallel
Strand 5	C	40	50	anti-parallel
Strand 6	C	55	66	anti-parallel
Strand 7	C	80	90	anti-parallel
Strand 8	C	94	100	anti-parallel
Strand 9	C	136	140	anti-parallel
Strand 10	C	156	158	anti-parallel
Strand 11	C	173	182	anti-parallel
Strand 12	C	151	152	anti-parallel
Strand 13	C	173	182	anti-parallel
Strand 14	C	185	195	anti-parallel
Strand 15	C	210	221	anti-parallel
Strand 16	C	225	235	anti-parallel
Strand 17	C	253	263	anti-parallel
Strand 18	C	269	281	anti-parallel
Strand 19	C	290	302	anti-parallel
Strand 20	C	308	316	anti-parallel
Strand 21	C	331	340	anti-parallel
Strand 22	C	9	24	anti-parallel

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There are 2 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	239	241	first strand
Strand 2	C	248	250	anti-parallel

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There are 18 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	2	6	first strand
Strand 2	D	9	24	anti-parallel
Strand 3	D	48	49	anti-parallel
Strand 4	D	55	58	anti-parallel
Strand 5	D	80	90	anti-parallel
Strand 6	D	94	101	anti-parallel
Strand 7	D	133	141	anti-parallel
Strand 8	D	151	158	anti-parallel
Strand 9	D	173	181	anti-parallel
Strand 10	D	184	195	anti-parallel
Strand 11	D	210	222	anti-parallel
Strand 12	D	225	235	anti-parallel
Strand 13	D	253	263	anti-parallel
Strand 14	D	269	283	anti-parallel
Strand 15	D	287	301	anti-parallel
Strand 16	D	309	316	anti-parallel
Strand 17	D	331	337	anti-parallel
Strand 18	D	9	24	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	36	37	first strand
Strand 2	D	9	24	anti-parallel
Strand 3	D	40	45	anti-parallel
Strand 4	D	61	66	anti-parallel
Strand 5	D	80	90	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	239	242	first strand
Strand 2	D	247	250	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: 3K1B

Analysis of interatomic Contacts of Structural Units in PDB entry:
3K1B