Analysis of interatomic Contacts of Structural Units in PDB entry:
1K9I

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 1K9I entry

There are 10 chains in PDB entry 1K9I (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 255	ALA 382
B	PRO 255	ALA 382
C	PRO 255	ALA 382
D	CYS 253	CYS 384
E	PRO 255	ALA 382
F	PRO 255	ALA 382
G	PRO 255	ALA 382
H	PRO 255	ALA 381
I	PRO 255	ALA 382
J	PRO 255	ALA 382

There are 30 helices in PDB entry 1K9I. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	276	287	Right-handed alpha
Helix 2	2	A	297	311	Right-handed alpha
Helix 3	3	A	338	343	Right-handed 310
Helix 4	4	B	276	286	Right-handed alpha
Helix 5	5	B	296	309	Right-handed alpha
Helix 6	6	B	336	343	Right-handed 310
Helix 7	7	C	276	286	Right-handed alpha
Helix 8	8	C	296	310	Right-handed alpha
Helix 9	9	C	339	343	Right-handed 310
Helix 10	10	D	276	287	Right-handed alpha
Helix 11	11	D	296	310	Right-handed alpha
Helix 12	12	D	336	343	Right-handed 310
Helix 13	13	E	276	286	Right-handed alpha
Helix 14	14	E	296	310	Right-handed alpha
Helix 15	15	E	336	343	Right-handed 310
Helix 16	16	F	276	287	Right-handed alpha
Helix 17	17	F	296	309	Right-handed alpha
Helix 18	18	F	336	343	Right-handed 310
Helix 19	19	G	276	286	Right-handed alpha
Helix 20	20	G	296	309	Right-handed alpha
Helix 21	21	G	336	343	Right-handed 310
Helix 22	22	H	276	285	Right-handed alpha
Helix 23	23	H	296	310	Right-handed alpha
Helix 24	24	H	336	343	Right-handed 310
Helix 25	25	I	276	286	Right-handed alpha
Helix 26	26	I	296	311	Right-handed alpha
Helix 27	27	I	338	343	Right-handed 310
Helix 28	28	J	276	286	Right-handed alpha
Helix 29	29	J	296	311	Right-handed alpha
Helix 30	30	J	337	343	Right-handed 310

There are 11 sheets in PDB entry 1K9I. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K,

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	261	263	first strand
Strand 2	A	266	270	anti-parallel
Strand 3	A	376	380	anti-parallel
Strand 4	A	290	291	anti-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	328	329	first strand
Strand 2	A	314	319	anti-parallel
Strand 3	A	356	360	anti-parallel
Strand 4	A	363	367	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	261	263	first strand
Strand 2	B	266	270	anti-parallel
Strand 3	B	374	380	anti-parallel
Strand 4	B	290	291	anti-parallel
Strand 5	B	374	380	anti-parallel
Strand 6	B	314	319	parallel
Strand 7	B	328	329	anti-parallel
Strand 8	B	314	319	anti-parallel
Strand 9	B	356	360	anti-parallel
Strand 10	B	363	367	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	261	263	first strand
Strand 2	C	266	270	anti-parallel
Strand 3	C	374	380	anti-parallel
Strand 4	C	290	291	anti-parallel
Strand 5	C	374	380	anti-parallel
Strand 6	C	314	319	parallel
Strand 7	C	328	329	anti-parallel
Strand 8	C	314	319	anti-parallel
Strand 9	C	356	360	anti-parallel
Strand 10	C	363	367	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	261	263	first strand
Strand 2	D	266	270	anti-parallel
Strand 3	D	374	380	anti-parallel
Strand 4	D	290	291	anti-parallel
Strand 5	D	374	380	anti-parallel
Strand 6	D	314	319	parallel
Strand 7	D	328	329	anti-parallel
Strand 8	D	314	319	anti-parallel
Strand 9	D	356	360	anti-parallel
Strand 10	D	363	367	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	261	263	first strand
Strand 2	E	266	270	anti-parallel
Strand 3	E	374	380	anti-parallel
Strand 4	E	290	291	anti-parallel
Strand 5	E	374	380	anti-parallel
Strand 6	E	314	323	parallel
Strand 7	E	326	329	anti-parallel
Strand 8	E	314	323	anti-parallel
Strand 9	E	356	360	anti-parallel
Strand 10	E	363	367	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	261	263	first strand
Strand 2	F	266	270	anti-parallel
Strand 3	F	374	380	anti-parallel
Strand 4	F	290	291	anti-parallel
Strand 5	F	374	380	anti-parallel
Strand 6	F	314	319	parallel
Strand 7	F	328	329	anti-parallel
Strand 8	F	314	319	anti-parallel
Strand 9	F	356	360	anti-parallel
Strand 10	F	363	367	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	261	263	first strand
Strand 2	G	266	270	anti-parallel
Strand 3	G	374	380	anti-parallel
Strand 4	G	290	291	anti-parallel
Strand 5	G	374	380	anti-parallel
Strand 6	G	314	323	parallel
Strand 7	G	326	329	anti-parallel
Strand 8	G	314	323	anti-parallel
Strand 9	G	356	360	anti-parallel
Strand 10	G	363	367	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	363	367	first strand
Strand 2	H	356	360	anti-parallel
Strand 3	H	314	319	anti-parallel
Strand 4	H	328	329	anti-parallel
Strand 5	H	314	319	anti-parallel
Strand 6	H	374	380	parallel
Strand 7	H	290	291	anti-parallel
Strand 8	H	374	380	anti-parallel
Strand 9	H	266	270	anti-parallel
Strand 10	H	261	263	anti-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	I	261	263	first strand
Strand 2	I	266	270	anti-parallel
Strand 3	I	374	380	anti-parallel
Strand 4	I	290	291	anti-parallel
Strand 5	I	374	380	anti-parallel
Strand 6	I	314	323	parallel
Strand 7	I	326	329	anti-parallel
Strand 8	I	314	323	anti-parallel
Strand 9	I	356	360	anti-parallel
Strand 10	I	363	367	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	261	263	first strand
Strand 2	J	266	270	anti-parallel
Strand 3	J	374	378	anti-parallel
Strand 4	J	290	291	anti-parallel
Strand 5	J	374	378	anti-parallel
Strand 6	J	314	319	parallel
Strand 7	J	328	329	anti-parallel
Strand 8	J	314	319	anti-parallel
Strand 9	J	356	360	anti-parallel
Strand 10	J	363	367	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: 1K9I

Analysis of interatomic Contacts of Structural Units in PDB entry:
1K9I