Analysis of interatomic Contacts of Structural Units in PDB entry:
4EN2

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 4EN2 entry

There are 6 chains in PDB entry 4EN2 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
M	SER 158	GLN 423
B	SER 6	LYS 204
C	SER 9	PHE 203
A	ARG 160	GLN 423
D	SER 319	GLN 330
E	ASP 314	GLY 331

There are 18 helices in PDB entry 4EN2. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	M	216	223	Right-handed alpha
Helix 2	2	M	243	251	Right-handed alpha
Helix 3	3	B	7	23	Right-handed alpha
Helix 4	4	B	80	95	Right-handed alpha
Helix 5	5	B	103	119	Right-handed alpha
Helix 6	6	B	149	159	Right-handed alpha
Helix 7	7	B	187	191	Right-handed 310
Helix 8	8	B	193	199	Right-handed alpha
Helix 9	9	B	200	203	Right-handed 310
Helix 10	10	C	11	23	Right-handed alpha
Helix 11	11	C	80	95	Right-handed alpha
Helix 12	12	C	103	119	Right-handed alpha
Helix 13	13	C	187	191	Right-handed 310
Helix 14	14	C	193	199	Right-handed alpha
Helix 15	15	C	200	203	Right-handed 310
Helix 16	16	A	216	223	Right-handed alpha
Helix 17	17	A	243	251	Right-handed alpha
Helix 18	18	E	327	331	Right-handed 310

There are 12 sheets in PDB entry 4EN2. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

There are 8 strands in A sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	321	322	first strand
Strand 2	M	405	414	anti-parallel
Strand 3	M	376	383	anti-parallel
Strand 4	M	418	420	anti-parallel
Strand 5	M	169	183	parallel
Strand 6	M	189	203	anti-parallel
Strand 7	M	260	269	anti-parallel
Strand 8	M	234	238	anti-parallel

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There are 9 strands in B sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	331	335	first strand
Strand 2	M	340	349	anti-parallel
Strand 3	M	306	315	anti-parallel
Strand 4	M	376	383	anti-parallel
Strand 5	M	405	414	anti-parallel
Strand 6	M	169	183	parallel
Strand 7	M	189	203	anti-parallel
Strand 8	M	260	269	anti-parallel
Strand 9	M	234	238	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	254	255	first strand
Strand 2	M	209	214	anti-parallel
Strand 3	M	392	398	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	277	287	first strand
Strand 2	M	290	299	anti-parallel
Strand 3	M	353	361	anti-parallel
Strand 4	M	321	327	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	385	386	first strand
Strand 2	C	68	69	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	68	69	first strand
Strand 2	A	385	386	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	143	147	first strand
Strand 2	B	181	185	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	58	59	first strand
Strand 2	A	321	327	anti-parallel
Strand 3	A	353	361	anti-parallel
Strand 4	A	290	299	anti-parallel
Strand 5	A	277	285	anti-parallel

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There are 10 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	61	62	first strand
Strand 2	A	331	335	parallel
Strand 3	A	340	349	anti-parallel
Strand 4	A	306	315	anti-parallel
Strand 5	A	376	383	anti-parallel
Strand 6	A	405	420	anti-parallel
Strand 7	A	169	183	parallel
Strand 8	A	189	203	anti-parallel
Strand 9	A	260	269	anti-parallel
Strand 10	A	234	238	anti-parallel

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There are 7 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	61	62	first strand
Strand 2	A	331	335	parallel
Strand 3	A	340	349	anti-parallel
Strand 4	A	306	315	anti-parallel
Strand 5	A	376	383	anti-parallel
Strand 6	A	405	420	anti-parallel
Strand 7	E	321	322	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	143	147	first strand
Strand 2	C	181	185	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	253	255	first strand
Strand 2	A	209	214	anti-parallel
Strand 3	A	392	398	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: 4EN2

Analysis of interatomic Contacts of Structural Units in PDB entry:
4EN2