Analysis of interatomic Contacts of Structural Units in PDB entry:
8IRS

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 8IRS entry

There are 5 chains in PDB entry 8IRS (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LEU 5	PHE 354
B	SER 2	ASN 340
E	ASP 1	LEU 247
G	THR 6	GLU 63
R	TYR 34	LEU 441

There are 31 helices in PDB entry 8IRS. 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	55	Right-handed alpha
Helix 3	AA3	A	207	218	Right-handed 310
Helix 4	AA4	A	226	231	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	309	Right-handed alpha
Helix 10	AB1	A	327	351	Right-handed alpha
Helix 11	AB2	B	3	26	Right-handed alpha
Helix 12	AB3	B	29	34	Right-handed alpha
Helix 13	AB4	E	28	32	Right-handed 310
Helix 14	AB5	E	74	76	Right-handed 310
Helix 15	AB6	E	87	91	Right-handed 310
Helix 16	AB7	E	220	224	Right-handed 310
Helix 17	AB8	G	7	24	Right-handed alpha
Helix 18	AB9	G	29	44	Right-handed alpha
Helix 19	AC1	G	45	48	Right-handed 310
Helix 20	AC2	R	35	62	Right-handed alpha
Helix 21	AC3	R	63	66	Right-handed 310
Helix 22	AC4	R	67	87	Right-handed alpha
Helix 23	AC5	R	87	98	Right-handed alpha
Helix 24	AC6	R	103	138	Right-handed alpha
Helix 25	AC7	R	138	144	Right-handed alpha
Helix 26	AC8	R	144	172	Right-handed alpha
Helix 27	AC9	R	186	198	Right-handed alpha
Helix 28	AD1	R	198	212	Right-handed alpha
Helix 29	AD2	R	368	399	Right-handed alpha
Helix 30	AD3	R	404	429	Right-handed alpha
Helix 31	AD4	R	430	441	Right-handed alpha

There are 14 sheets in PDB entry 8IRS. 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,

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	189	first strand
Strand 2	A	196	200	anti-parallel
Strand 3	A	34	40	parallel
Strand 4	A	220	225	parallel
Strand 5	A	263	268	parallel
Strand 6	A	319	323	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	46	51	first strand
Strand 2	B	336	340	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	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	103	105	first strand
Strand 2	B	111	114	anti-parallel
Strand 3	B	121	125	anti-parallel
Strand 4	B	134	139	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	153	first strand
Strand 2	B	156	161	anti-parallel
Strand 3	B	166	170	anti-parallel
Strand 4	B	175	180	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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There are 4 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	3	5	first strand
Strand 2	E	17	25	anti-parallel
Strand 3	E	78	84	anti-parallel
Strand 4	E	68	73	anti-parallel

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There are 6 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	11	12	first strand
Strand 2	E	115	119	parallel
Strand 3	E	92	99	anti-parallel
Strand 4	E	33	39	anti-parallel
Strand 5	E	45	51	anti-parallel
Strand 6	E	59	60	anti-parallel

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There are 4 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	11	12	first strand
Strand 2	E	115	119	parallel
Strand 3	E	92	99	anti-parallel
Strand 4	E	110	111	anti-parallel

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There are 4 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	140	142	first strand
Strand 2	E	155	161	anti-parallel
Strand 3	E	211	216	anti-parallel
Strand 4	E	203	207	anti-parallel

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There are 5 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	146	148	first strand
Strand 2	E	243	246	parallel
Strand 3	E	225	231	anti-parallel
Strand 4	E	174	179	anti-parallel
Strand 5	E	186	189	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	E	146	148	first strand
Strand 2	E	243	246	parallel
Strand 3	E	225	231	anti-parallel
Strand 4	E	238	239	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: 8IRS

Analysis of interatomic Contacts of Structural Units in PDB entry:
8IRS