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

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 8IFK entry

There are 4 chains in PDB entry 8IFK (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ARG 2	SER 420
B	MET 1	ILE 507
C	A 1	G 20
D	T 5	T 25

There are 30 helices in PDB entry 8IFK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	14	28	Right-handed alpha
Helix 2	AA2	A	34	38	Right-handed 310
Helix 3	AA3	A	46	55	Right-handed alpha
Helix 4	AA4	A	65	70	Right-handed alpha
Helix 5	AA5	A	71	89	Right-handed alpha
Helix 6	AA6	A	109	114	Right-handed alpha
Helix 7	AA7	A	123	138	Right-handed alpha
Helix 8	AA8	A	146	158	Right-handed alpha
Helix 9	AA9	A	199	203	Right-handed 310
Helix 10	AB1	A	227	231	Right-handed 310
Helix 11	AB2	A	234	238	Right-handed 310
Helix 12	AB3	A	243	248	Right-handed alpha
Helix 13	AB4	A	257	279	Right-handed alpha
Helix 14	AB5	A	300	302	Right-handed 310
Helix 15	AB6	A	353	366	Right-handed alpha
Helix 16	AB7	A	369	384	Right-handed alpha
Helix 17	AB8	B	15	17	Right-handed 310
Helix 18	AB9	B	22	30	Right-handed alpha
Helix 19	AC1	B	46	62	Right-handed alpha
Helix 20	AC2	B	77	83	Right-handed alpha
Helix 21	AC3	B	87	89	Right-handed 310
Helix 22	AC4	B	115	129	Right-handed alpha
Helix 23	AC5	B	205	214	Right-handed alpha
Helix 24	AC6	B	226	230	Right-handed alpha
Helix 25	AC7	B	248	264	Right-handed alpha
Helix 26	AC8	B	331	351	Right-handed alpha
Helix 27	AC9	B	366	375	Right-handed alpha
Helix 28	AD1	B	451	463	Right-handed alpha
Helix 29	AD2	B	477	491	Right-handed alpha
Helix 30	AD3	B	502	506	Right-handed 310

There are 9 sheets in PDB entry 8IFK. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9,

There are 4 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	31	33	first strand
Strand 2	A	4	8	parallel
Strand 3	A	57	63	parallel
Strand 4	A	94	97	parallel

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There are 12 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	319	324	first strand
Strand 2	B	296	303	anti-parallel
Strand 3	B	278	287	anti-parallel
Strand 4	B	356	361	parallel
Strand 5	B	382	389	parallel
Strand 6	B	441	447	anti-parallel
Strand 7	B	417	420	anti-parallel
Strand 8	B	409	411	anti-parallel
Strand 9	B	2	6	anti-parallel
Strand 10	A	409	412	parallel
Strand 11	A	169	172	anti-parallel
Strand 12	B	397	398	anti-parallel

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There are 6 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	311	314	first strand
Strand 2	A	317	328	anti-parallel
Strand 3	A	334	344	anti-parallel
Strand 4	A	175	180	anti-parallel
Strand 5	A	401	404	anti-parallel
Strand 6	A	390	393	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	A	208	210	first strand
Strand 2	A	213	216	anti-parallel
Strand 3	A	184	188	anti-parallel
Strand 4	A	239	242	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	283	286	first strand
Strand 2	A	291	294	anti-parallel

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There are 2 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	304	305	first strand
Strand 2	A	308	309	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	19	20	first strand
Strand 2	B	12	13	anti-parallel
Strand 3	B	270	271	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	91	95	first strand
Strand 2	B	41	45	parallel
Strand 3	B	138	143	parallel
Strand 4	B	221	225	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	B	425	426	first strand
Strand 2	B	431	432	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: 8IFK

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