Analysis of interatomic Contacts of Structural Units in PDB entry:
1K9S

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 1K9S entry

There are 6 chains in PDB entry 1K9S (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 1	LYS 237
B	ALA 1	LYS 237
C	ALA 1	LYS 237
D	ALA 1	LYS 237
E	ALA 1	LYS 237
F	ALA 1	LYS 237

There are 51 helices in PDB entry 1K9S. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	21	33	Right-handed alpha
Helix 2	2	A	41	45	Right-handed 310
Helix 3	3	A	65	81	Right-handed alpha
Helix 4	4	A	114	120	Right-handed alpha
Helix 5	5	A	130	144	Right-handed alpha
Helix 6	6	A	164	173	Right-handed alpha
Helix 7	7	A	181	193	Right-handed alpha
Helix 8	8	A	213	220	Right-handed alpha
Helix 9	9	A	222	237	Right-handed alpha
Helix 10	10	B	21	33	Right-handed alpha
Helix 11	11	B	41	45	Right-handed 310
Helix 12	12	B	65	81	Right-handed alpha
Helix 13	13	B	114	120	Right-handed alpha
Helix 14	14	B	130	145	Right-handed alpha
Helix 15	15	B	165	173	Right-handed alpha
Helix 16	16	B	181	193	Right-handed alpha
Helix 17	17	B	213	220	Right-handed alpha
Helix 18	18	B	222	237	Right-handed alpha
Helix 19	19	C	21	33	Right-handed alpha
Helix 20	20	C	41	45	Right-handed 310
Helix 21	21	C	65	81	Right-handed alpha
Helix 22	22	C	114	120	Right-handed alpha
Helix 23	23	C	130	145	Right-handed alpha
Helix 24	24	C	164	173	Right-handed alpha
Helix 25	25	C	181	193	Right-handed alpha
Helix 26	26	C	213	220	Right-handed alpha
Helix 27	27	C	222	237	Right-handed alpha
Helix 28	28	D	21	33	Right-handed alpha
Helix 29	29	D	41	45	Right-handed 310
Helix 30	30	D	65	81	Right-handed alpha
Helix 31	31	D	114	120	Right-handed alpha
Helix 32	32	D	130	144	Right-handed alpha
Helix 33	33	D	165	173	Right-handed alpha
Helix 34	34	D	181	193	Right-handed alpha
Helix 35	35	D	213	237	Right-handed alpha
Helix 36	36	E	21	33	Right-handed alpha
Helix 37	37	E	41	45	Right-handed 310
Helix 38	38	E	65	81	Right-handed alpha
Helix 39	39	E	114	120	Right-handed alpha
Helix 40	40	E	130	144	Right-handed alpha
Helix 41	41	E	165	173	Right-handed alpha
Helix 42	42	E	181	193	Right-handed alpha
Helix 43	43	E	213	237	Right-handed alpha
Helix 44	44	F	21	33	Right-handed alpha
Helix 45	45	F	41	45	Right-handed 310
Helix 46	46	F	65	81	Right-handed alpha
Helix 47	47	F	114	120	Right-handed alpha
Helix 48	48	F	130	144	Right-handed alpha
Helix 49	49	F	164	173	Right-handed alpha
Helix 50	50	F	181	193	Right-handed alpha
Helix 51	51	F	213	237	Right-handed alpha

There are 6 sheets in PDB entry 1K9S. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 12 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	34	40	first strand
Strand 2	A	47	52	anti-parallel
Strand 3	A	55	60	anti-parallel
Strand 4	A	15	18	parallel
Strand 5	A	84	93	parallel
Strand 6	A	195	205	parallel
Strand 7	A	103	111	anti-parallel
Strand 8	A	127	128	anti-parallel
Strand 9	A	103	111	anti-parallel
Strand 10	A	148	155	parallel
Strand 11	A	177	179	parallel
Strand 12	A	84	93	anti-parallel

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There are 12 strands in B sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	34	40	first strand
Strand 2	B	47	52	anti-parallel
Strand 3	B	55	60	anti-parallel
Strand 4	B	15	18	parallel
Strand 5	B	84	93	parallel
Strand 6	B	195	205	parallel
Strand 7	B	103	111	anti-parallel
Strand 8	B	127	128	anti-parallel
Strand 9	B	103	111	anti-parallel
Strand 10	B	148	155	parallel
Strand 11	B	177	179	parallel
Strand 12	B	84	93	anti-parallel

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There are 12 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	34	40	first strand
Strand 2	C	47	52	anti-parallel
Strand 3	C	55	60	anti-parallel
Strand 4	C	15	18	parallel
Strand 5	C	84	93	parallel
Strand 6	C	195	205	parallel
Strand 7	C	103	111	anti-parallel
Strand 8	C	127	128	anti-parallel
Strand 9	C	103	111	anti-parallel
Strand 10	C	148	155	parallel
Strand 11	C	177	179	parallel
Strand 12	C	84	93	anti-parallel

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There are 12 strands in D sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	34	40	first strand
Strand 2	D	47	52	anti-parallel
Strand 3	D	55	60	anti-parallel
Strand 4	D	15	18	parallel
Strand 5	D	84	93	parallel
Strand 6	D	195	205	parallel
Strand 7	D	103	111	anti-parallel
Strand 8	D	127	128	anti-parallel
Strand 9	D	103	111	anti-parallel
Strand 10	D	148	155	parallel
Strand 11	D	177	179	parallel
Strand 12	D	84	93	anti-parallel

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There are 12 strands in E sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	34	40	first strand
Strand 2	E	47	52	anti-parallel
Strand 3	E	55	60	anti-parallel
Strand 4	E	15	18	parallel
Strand 5	E	84	93	parallel
Strand 6	E	195	205	parallel
Strand 7	E	103	111	anti-parallel
Strand 8	E	127	128	anti-parallel
Strand 9	E	103	111	anti-parallel
Strand 10	E	149	155	parallel
Strand 11	E	177	179	parallel
Strand 12	E	84	93	anti-parallel

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There are 12 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	34	40	first strand
Strand 2	F	47	52	anti-parallel
Strand 3	F	55	60	anti-parallel
Strand 4	F	15	18	parallel
Strand 5	F	84	93	parallel
Strand 6	F	195	205	parallel
Strand 7	F	103	111	anti-parallel
Strand 8	F	127	128	anti-parallel
Strand 9	F	103	111	anti-parallel
Strand 10	F	148	155	parallel
Strand 11	F	177	179	parallel
Strand 12	F	84	93	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: 1K9S

Analysis of interatomic Contacts of Structural Units in PDB entry:
1K9S