Analysis of interatomic Contacts of Structural Units in PDB entry:
20YC

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 20YC entry

There are 4 chains in PDB entry 20YC (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LEU 5	PHE 354
R	PHE 17	SER 304
B	GLU 3	ASN 340
C	ILE 9	PHE 61

There are 29 helices in PDB entry 20YC. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	8	32	Right-handed alpha
Helix 2	AA2	A	45	55	Right-handed alpha
Helix 3	AA3	A	207	216	Right-handed 310
Helix 4	AA4	A	228	232	Right-handed 310
Helix 5	AA5	A	241	255	Right-handed alpha
Helix 6	AA6	A	256	260	Right-handed 310
Helix 7	AA7	A	270	281	Right-handed alpha
Helix 8	AA8	A	282	286	Right-handed 310
Helix 9	AA9	A	295	310	Right-handed alpha
Helix 10	AB1	A	329	352	Right-handed alpha
Helix 11	AB2	R	20	51	Right-handed alpha
Helix 12	AB3	R	55	71	Right-handed alpha
Helix 13	AB4	R	71	82	Right-handed alpha
Helix 14	AB5	R	87	122	Right-handed alpha
Helix 15	AB6	R	133	150	Right-handed alpha
Helix 16	AB7	R	150	157	Right-handed alpha
Helix 17	AB8	R	161	165	Right-handed 310
Helix 18	AB9	R	168	172	Right-handed 310
Helix 19	AC1	R	178	194	Right-handed alpha
Helix 20	AC2	R	194	215	Right-handed alpha
Helix 21	AC3	R	217	222	Right-handed alpha
Helix 22	AC4	R	222	258	Right-handed alpha
Helix 23	AC5	R	263	293	Right-handed alpha
Helix 24	AC6	R	296	303	Right-handed alpha
Helix 25	AC7	B	4	25	Right-handed alpha
Helix 26	AC8	B	29	34	Right-handed alpha
Helix 27	AC9	C	10	22	Right-handed alpha
Helix 28	AD1	C	29	44	Right-handed alpha
Helix 29	AD2	C	45	48	Right-handed 310

There are 8 sheets in PDB entry 20YC. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8,

There are 6 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	185	190	first strand
Strand 2	A	195	200	anti-parallel
Strand 3	A	34	38	parallel
Strand 4	A	220	226	parallel
Strand 5	A	263	269	parallel
Strand 6	A	319	322	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	B	47	51	first strand
Strand 2	B	336	339	anti-parallel
Strand 3	B	327	330	anti-parallel
Strand 4	B	317	320	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	B	58	63	first strand
Strand 2	B	69	74	anti-parallel
Strand 3	B	78	83	anti-parallel
Strand 4	B	88	94	anti-parallel

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There are 4 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	102	105	first strand
Strand 2	B	111	115	anti-parallel
Strand 3	B	120	125	anti-parallel
Strand 4	B	134	140	anti-parallel

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There are 4 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	146	151	first strand
Strand 2	B	156	161	anti-parallel
Strand 3	B	165	170	anti-parallel
Strand 4	B	175	181	anti-parallel

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There are 4 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	187	192	first strand
Strand 2	B	198	203	anti-parallel
Strand 3	B	208	212	anti-parallel
Strand 4	B	218	222	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	229	234	first strand
Strand 2	B	240	245	anti-parallel
Strand 3	B	250	254	anti-parallel
Strand 4	B	259	264	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	273	278	first strand
Strand 2	B	284	289	anti-parallel
Strand 3	B	294	298	anti-parallel
Strand 4	B	304	308	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: 20YC

Analysis of interatomic Contacts of Structural Units in PDB entry:
20YC