Analysis of interatomic Contacts of Structural Units in PDB entry:
9CYN

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 9CYN entry

There are 6 chains in PDB entry 9CYN (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	SER 47	VAL 184
A	GLY 186	ASP 278
B	GLU 51	VAL 184
B	GLY 186	ASP 285
C	GLY 46	VAL 184
C	GLY 186	ASP 286

There are 4 helices in PDB entry 9CYN. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	49	52	Right-handed 310
Helix 2	AA2	A	145	147	Right-handed 310
Helix 3	AA3	B	145	147	Right-handed 310
Helix 4	AA4	C	145	147	Right-handed 310

There are 16 sheets in PDB entry 9CYN. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3, AB4, AB5, AB6, AB7,

There are 5 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	54	58	first strand
Strand 2	A	259	271	anti-parallel
Strand 3	A	122	130	anti-parallel
Strand 4	A	99	107	anti-parallel
Strand 5	A	93	96	anti-parallel

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There are 4 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	54	58	first strand
Strand 2	A	259	271	anti-parallel
Strand 3	A	176	187	anti-parallel
Strand 4	A	215	223	anti-parallel

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There are 4 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	72	75	first strand
Strand 2	A	137	141	anti-parallel
Strand 3	A	242	250	anti-parallel
Strand 4	A	171	172	anti-parallel

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There are 5 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	72	75	first strand
Strand 2	A	137	141	anti-parallel
Strand 3	A	242	250	anti-parallel
Strand 4	A	191	198	anti-parallel
Strand 5	A	204	211	anti-parallel

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There are 2 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	149	150	first strand
Strand 2	A	168	169	anti-parallel

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There are 5 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	53	58	first strand
Strand 2	B	259	270	anti-parallel
Strand 3	B	122	130	anti-parallel
Strand 4	B	99	107	anti-parallel
Strand 5	B	93	96	anti-parallel

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There are 4 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	53	58	first strand
Strand 2	B	259	270	anti-parallel
Strand 3	B	179	187	anti-parallel
Strand 4	B	215	223	anti-parallel

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There are 4 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	72	75	first strand
Strand 2	B	137	141	anti-parallel
Strand 3	B	242	250	anti-parallel
Strand 4	B	171	172	anti-parallel

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There are 5 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	72	75	first strand
Strand 2	B	137	141	anti-parallel
Strand 3	B	242	250	anti-parallel
Strand 4	B	191	198	anti-parallel
Strand 5	B	204	211	anti-parallel

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There are 2 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	149	150	first strand
Strand 2	B	168	169	anti-parallel

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There are 2 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	276	278	first strand
Strand 2	B	281	283	anti-parallel

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There are 5 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	53	58	first strand
Strand 2	C	259	270	anti-parallel
Strand 3	C	122	130	anti-parallel
Strand 4	C	99	107	anti-parallel
Strand 5	C	93	95	anti-parallel

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There are 4 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	53	58	first strand
Strand 2	C	259	270	anti-parallel
Strand 3	C	179	187	anti-parallel
Strand 4	C	215	223	anti-parallel

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There are 4 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	72	75	first strand
Strand 2	C	137	141	anti-parallel
Strand 3	C	242	250	anti-parallel
Strand 4	C	171	172	anti-parallel

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There are 5 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	72	75	first strand
Strand 2	C	137	141	anti-parallel
Strand 3	C	242	250	anti-parallel
Strand 4	C	191	198	anti-parallel
Strand 5	C	204	211	anti-parallel

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There are 2 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	149	151	first strand
Strand 2	C	167	169	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: 9CYN

Analysis of interatomic Contacts of Structural Units in PDB entry:
9CYN