Analysis of interatomic Contacts of Structural Units in PDB entry:
6EK2

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 6EK2 entry

There are 4 chains in PDB entry 6EK2 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PHE 113	HIS 202
B	PHE 113	LYS 201
H	GLU 170	LYS 445
I	GLU 170	LYS 445

There are 16 helices in PDB entry 6EK2. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	115	137	Right-handed alpha
Helix 2	AA2	A	140	155	Right-handed alpha
Helix 3	AA3	A	162	164	Right-handed 310
Helix 4	AA4	A	165	172	Right-handed alpha
Helix 5	AA5	A	189	200	Right-handed alpha
Helix 6	AA6	B	115	136	Right-handed alpha
Helix 7	AA7	B	140	155	Right-handed alpha
Helix 8	AA8	B	162	164	Right-handed 310
Helix 9	AA9	B	165	172	Right-handed alpha
Helix 10	AB1	B	189	200	Right-handed alpha
Helix 11	AB2	H	197	201	Right-handed 310
Helix 12	AB3	H	256	260	Right-handed 310
Helix 13	AB4	H	417	421	Right-handed 310
Helix 14	AB5	I	197	201	Right-handed 310
Helix 15	AB6	I	256	260	Right-handed 310
Helix 16	AB7	I	417	421	Right-handed 310

There are 12 sheets in PDB entry 6EK2. 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	181	182	first strand
Strand 2	A	185	186	anti-parallel

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There are 2 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	181	182	first strand
Strand 2	B	185	186	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	H	172	176	first strand
Strand 2	H	187	194	anti-parallel
Strand 3	H	247	252	anti-parallel
Strand 4	H	237	242	anti-parallel

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There are 6 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	180	181	first strand
Strand 2	H	283	287	parallel
Strand 3	H	261	268	anti-parallel
Strand 4	H	203	208	anti-parallel
Strand 5	H	214	220	anti-parallel
Strand 6	H	227	229	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	H	180	181	first strand
Strand 2	H	283	287	parallel
Strand 3	H	261	268	anti-parallel
Strand 4	H	276	279	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	H	342	343	first strand
Strand 2	H	357	363	anti-parallel
Strand 3	H	408	413	anti-parallel
Strand 4	H	400	405	anti-parallel

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There are 6 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	348	350	first strand
Strand 2	H	440	443	parallel
Strand 3	H	423	428	anti-parallel
Strand 4	H	371	376	anti-parallel
Strand 5	H	383	387	anti-parallel
Strand 6	H	391	392	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	I	172	176	first strand
Strand 2	I	187	194	anti-parallel
Strand 3	I	247	252	anti-parallel
Strand 4	I	237	242	anti-parallel

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There are 5 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	227	229	first strand
Strand 2	I	214	220	anti-parallel
Strand 3	I	203	208	anti-parallel
Strand 4	I	261	268	anti-parallel
Strand 5	I	276	279	anti-parallel

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There are 5 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	227	229	first strand
Strand 2	I	214	220	anti-parallel
Strand 3	I	203	208	anti-parallel
Strand 4	I	261	268	anti-parallel
Strand 5	I	283	285	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	I	342	343	first strand
Strand 2	I	357	363	anti-parallel
Strand 3	I	408	413	anti-parallel
Strand 4	I	400	405	anti-parallel

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There are 6 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	348	350	first strand
Strand 2	I	440	443	parallel
Strand 3	I	423	428	anti-parallel
Strand 4	I	371	376	anti-parallel
Strand 5	I	383	387	anti-parallel
Strand 6	I	391	392	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: 6EK2

Analysis of interatomic Contacts of Structural Units in PDB entry:
6EK2