Analysis of interatomic Contacts of Structural Units in PDB entry:
1E4K

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 1E4K entry

There are 3 chains in PDB entry 1E4K (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	CYS 229	SER 444
B	CYS 229	SER 444
C	ASP 1	GLY 172

There are 10 helices in PDB entry 1E4K. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	247	251	Right-handed 310
Helix 2	AA2	A	309	316	Right-handed alpha
Helix 3	AA3	A	354	359	Right-handed alpha
Helix 4	AA4	A	414	420	Right-handed alpha
Helix 5	AA5	B	247	251	Right-handed 310
Helix 6	AA6	B	309	316	Right-handed alpha
Helix 7	AA7	B	354	358	Right-handed 310
Helix 8	AA8	B	414	420	Right-handed alpha
Helix 9	AA9	C	59	63	Right-handed 310
Helix 10	AB1	C	111	113	Right-handed 310

There are 15 sheets in PDB entry 1E4K. 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, AB6,

There are 3 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	240	243	first strand
Strand 2	A	258	266	anti-parallel
Strand 3	A	300	307	anti-parallel

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There are 3 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	274	279	first strand
Strand 2	A	319	324	anti-parallel
Strand 3	A	332	336	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	A	347	351	first strand
Strand 2	A	362	372	anti-parallel
Strand 3	A	404	413	anti-parallel
Strand 4	A	392	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	347	351	first strand
Strand 2	A	362	372	anti-parallel
Strand 3	A	404	413	anti-parallel
Strand 4	A	397	398	anti-parallel

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There are 3 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	378	382	first strand
Strand 2	A	423	428	anti-parallel
Strand 3	A	436	441	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	240	243	first strand
Strand 2	B	258	266	anti-parallel
Strand 3	B	300	307	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	273	279	first strand
Strand 2	B	318	325	anti-parallel
Strand 3	B	332	337	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	347	351	first strand
Strand 2	B	362	372	anti-parallel
Strand 3	B	404	413	anti-parallel
Strand 4	B	392	393	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	B	347	351	first strand
Strand 2	B	362	372	anti-parallel
Strand 3	B	404	413	anti-parallel
Strand 4	B	397	398	anti-parallel

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There are 3 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	378	382	first strand
Strand 2	B	423	428	anti-parallel
Strand 3	B	436	441	anti-parallel

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There are 3 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	7	10	first strand
Strand 2	C	22	26	anti-parallel
Strand 3	C	52	55	anti-parallel

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There are 5 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	15	17	first strand
Strand 2	C	79	84	parallel
Strand 3	C	64	70	anti-parallel
Strand 4	C	37	41	anti-parallel
Strand 5	C	45	46	anti-parallel

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There are 3 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	88	91	first strand
Strand 2	C	103	109	anti-parallel
Strand 3	C	136	138	anti-parallel

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There are 5 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	96	98	first strand
Strand 2	C	165	170	parallel
Strand 3	C	147	155	anti-parallel
Strand 4	C	116	122	anti-parallel
Strand 5	C	128	130	anti-parallel

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There are 4 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	96	98	first strand
Strand 2	C	165	170	parallel
Strand 3	C	147	155	anti-parallel
Strand 4	C	158	161	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: 1E4K

Analysis of interatomic Contacts of Structural Units in PDB entry:
1E4K