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

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 9EPR entry

There are 4 chains in PDB entry 9EPR (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	CYS 3	PHE 354
B	THR 29	ASN 340
G	VAL 33	GLU 66
R	ASN 20	LEU 349

There are 25 helices in PDB entry 9EPR. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	6	31	Right-handed alpha
Helix 2	AA2	A	45	54	Right-handed alpha
Helix 3	AA3	A	204	208	Right-handed 310
Helix 4	AA4	A	241	255	Right-handed alpha
Helix 5	AA5	A	270	278	Right-handed alpha
Helix 6	AA6	A	299	309	Right-handed alpha
Helix 7	AA7	A	313	317	Right-handed 310
Helix 8	AA8	A	331	349	Right-handed alpha
Helix 9	AA9	B	30	34	Right-handed alpha
Helix 10	AB1	G	34	48	Right-handed alpha
Helix 11	AB2	G	49	51	Right-handed 310
Helix 12	AB3	R	22	27	Right-handed alpha
Helix 13	AB4	R	51	78	Right-handed alpha
Helix 14	AB5	R	83	101	Right-handed alpha
Helix 15	AB6	R	102	107	Right-handed alpha
Helix 16	AB7	R	120	155	Right-handed alpha
Helix 17	AB8	R	162	183	Right-handed alpha
Helix 18	AB9	R	184	187	Right-handed 310
Helix 19	AC1	R	208	255	Right-handed alpha
Helix 20	AC2	R	264	269	Right-handed alpha
Helix 21	AC3	R	270	302	Right-handed alpha
Helix 22	AC4	R	312	324	Right-handed alpha
Helix 23	AC5	R	325	334	Right-handed alpha
Helix 24	AC6	R	335	343	Right-handed alpha
Helix 25	AC7	R	344	349	Right-handed alpha

There are 9 sheets in PDB entry 9EPR. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9,

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	185	191	first strand
Strand 2	A	194	200	anti-parallel
Strand 3	A	33	40	parallel
Strand 4	A	221	226	parallel
Strand 5	A	264	269	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	331	anti-parallel
Strand 4	B	315	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	89	93	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	100	105	first strand
Strand 2	B	111	116	anti-parallel
Strand 3	B	120	125	anti-parallel
Strand 4	B	137	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	148	149	first strand
Strand 2	B	156	160	anti-parallel
Strand 3	B	166	170	anti-parallel
Strand 4	B	176	180	anti-parallel

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There are 3 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	198	202	first strand
Strand 2	B	207	212	anti-parallel
Strand 3	B	218	223	anti-parallel

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There are 3 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	240	244	first strand
Strand 2	B	250	254	anti-parallel
Strand 3	B	260	263	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	276	278	first strand
Strand 2	B	284	288	anti-parallel
Strand 3	B	294	298	anti-parallel
Strand 4	B	304	308	anti-parallel

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There are 2 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	191	193	first strand
Strand 2	R	200	202	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: 9EPR

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