Analysis of interatomic Contacts of Structural Units in PDB entry:
5IRF

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 5IRF entry

There are 4 chains in PDB entry 5IRF (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	THR 15	LYS 305
B	THR 15	LYS 305
C	SER 16	LYS 305
D	SER 16	LYS 305

There are 54 helices in PDB entry 5IRF. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	18	23	Right-handed alpha
Helix 2	AA2	A	24	38	Right-handed alpha
Helix 3	AA3	A	48	50	Right-handed 310
Helix 4	AA4	A	51	69	Right-handed alpha
Helix 5	AA5	A	96	116	Right-handed alpha
Helix 6	AA6	A	130	144	Right-handed alpha
Helix 7	AA7	A	156	161	Right-handed alpha
Helix 8	AA8	A	162	172	Right-handed alpha
Helix 9	AA9	A	176	190	Right-handed alpha
Helix 10	AB1	A	195	200	Right-handed 310
Helix 11	AB2	A	210	229	Right-handed alpha
Helix 12	AB3	A	246	264	Right-handed alpha
Helix 13	AB4	A	278	281	Right-handed 310
Helix 14	AB5	B	17	23	Right-handed alpha
Helix 15	AB6	B	24	39	Right-handed alpha
Helix 16	AB7	B	48	50	Right-handed 310
Helix 17	AB8	B	51	69	Right-handed alpha
Helix 18	AB9	B	96	116	Right-handed alpha
Helix 19	AC1	B	130	144	Right-handed alpha
Helix 20	AC2	B	156	161	Right-handed alpha
Helix 21	AC3	B	162	172	Right-handed alpha
Helix 22	AC4	B	176	190	Right-handed alpha
Helix 23	AC5	B	195	200	Right-handed 310
Helix 24	AC6	B	210	229	Right-handed alpha
Helix 25	AC7	B	246	265	Right-handed alpha
Helix 26	AC8	B	278	281	Right-handed 310
Helix 27	AC9	C	17	23	Right-handed alpha
Helix 28	AD1	C	24	39	Right-handed alpha
Helix 29	AD2	C	48	50	Right-handed 310
Helix 30	AD3	C	51	69	Right-handed alpha
Helix 31	AD4	C	96	116	Right-handed alpha
Helix 32	AD5	C	130	144	Right-handed alpha
Helix 33	AD6	C	156	161	Right-handed alpha
Helix 34	AD7	C	162	172	Right-handed alpha
Helix 35	AD8	C	176	190	Right-handed alpha
Helix 36	AD9	C	195	200	Right-handed 310
Helix 37	AE1	C	210	229	Right-handed alpha
Helix 38	AE2	C	246	265	Right-handed alpha
Helix 39	AE3	C	270	274	Right-handed 310
Helix 40	AE4	C	278	281	Right-handed 310
Helix 41	AE5	D	17	23	Right-handed alpha
Helix 42	AE6	D	24	39	Right-handed alpha
Helix 43	AE7	D	48	50	Right-handed 310
Helix 44	AE8	D	51	69	Right-handed alpha
Helix 45	AE9	D	96	116	Right-handed alpha
Helix 46	AF1	D	130	144	Right-handed alpha
Helix 47	AF2	D	156	161	Right-handed alpha
Helix 48	AF3	D	162	172	Right-handed alpha
Helix 49	AF4	D	176	190	Right-handed alpha
Helix 50	AF5	D	195	200	Right-handed 310
Helix 51	AF6	D	210	229	Right-handed alpha
Helix 52	AF7	D	246	264	Right-handed alpha
Helix 53	AF8	D	270	274	Right-handed 310
Helix 54	AF9	D	278	281	Right-handed 310

There are 12 sheets in PDB entry 5IRF. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3,

There are 2 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	78	80	first strand
Strand 2	A	92	94	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	232	236	first strand
Strand 2	A	239	244	anti-parallel
Strand 3	A	148	152	anti-parallel
Strand 4	A	275	277	anti-parallel

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There are 3 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	283	284	first strand
Strand 2	A	287	292	anti-parallel
Strand 3	A	297	302	anti-parallel

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There are 2 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	78	82	first strand
Strand 2	B	90	94	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	232	236	first strand
Strand 2	B	239	244	anti-parallel
Strand 3	B	148	152	anti-parallel
Strand 4	B	275	277	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	283	284	first strand
Strand 2	B	287	292	anti-parallel
Strand 3	B	297	302	anti-parallel

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There are 2 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	78	80	first strand
Strand 2	C	92	94	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	C	232	236	first strand
Strand 2	C	239	244	anti-parallel
Strand 3	C	148	151	anti-parallel
Strand 4	C	275	277	anti-parallel

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There are 3 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	283	284	first strand
Strand 2	C	287	292	anti-parallel
Strand 3	C	297	302	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	D	78	83	first strand
Strand 2	D	89	94	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	D	232	236	first strand
Strand 2	D	239	244	anti-parallel
Strand 3	D	148	151	anti-parallel
Strand 4	D	275	277	anti-parallel

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There are 3 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	283	284	first strand
Strand 2	D	287	292	anti-parallel
Strand 3	D	297	302	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: 5IRF

Analysis of interatomic Contacts of Structural Units in PDB entry:
5IRF