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

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 8IEC entry

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

Chain ID	Initial residue	Terminal residue
C	THR 4	TYR 228
D	GLU 3	ASN 340
N	VAL 2	LEU 235
Y	SER 8	ARG 62

There are 13 helices in PDB entry 8IEC. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	C	6	31	Right-handed alpha
Helix 2	AA2	C	96	102	Right-handed 310
Helix 3	AA3	C	117	129	Right-handed alpha
Helix 4	AA4	C	130	135	Right-handed 310
Helix 5	AA5	C	145	153	Right-handed alpha
Helix 6	AA6	C	170	184	Right-handed alpha
Helix 7	AA7	C	205	225	Right-handed alpha
Helix 8	AA8	D	4	25	Right-handed alpha
Helix 9	AA9	N	28	32	Right-handed 310
Helix 10	AB1	N	53	56	Right-handed 310
Helix 11	AB2	N	87	91	Right-handed 310
Helix 12	AB3	Y	9	24	Right-handed alpha
Helix 13	AB4	Y	34	44	Right-handed alpha

There are 13 sheets in PDB entry 8IEC. 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,

There are 7 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	54	55	first strand
Strand 2	C	71	76	anti-parallel
Strand 3	C	79	84	anti-parallel
Strand 4	C	33	40	parallel
Strand 5	C	105	111	parallel
Strand 6	C	138	144	parallel
Strand 7	C	193	197	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	D	49	51	first strand
Strand 2	D	336	339	anti-parallel
Strand 3	D	327	331	anti-parallel
Strand 4	D	315	320	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	D	58	63	first strand
Strand 2	D	69	74	anti-parallel
Strand 3	D	78	83	anti-parallel
Strand 4	D	88	94	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	D	100	105	first strand
Strand 2	D	111	116	anti-parallel
Strand 3	D	120	125	anti-parallel
Strand 4	D	134	140	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	D	146	151	first strand
Strand 2	D	156	161	anti-parallel
Strand 3	D	165	170	anti-parallel
Strand 4	D	175	181	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	D	191	192	first strand
Strand 2	D	198	203	anti-parallel
Strand 3	D	207	212	anti-parallel
Strand 4	D	218	222	anti-parallel

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There are 4 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	229	234	first strand
Strand 2	D	240	245	anti-parallel
Strand 3	D	249	254	anti-parallel
Strand 4	D	259	265	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	D	276	278	first strand
Strand 2	D	284	289	anti-parallel
Strand 3	D	293	298	anti-parallel
Strand 4	D	306	309	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	N	3	7	first strand
Strand 2	N	17	25	anti-parallel
Strand 3	N	78	84	anti-parallel
Strand 4	N	68	73	anti-parallel

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There are 6 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	10	12	first strand
Strand 2	N	115	119	parallel
Strand 3	N	93	98	anti-parallel
Strand 4	N	35	39	anti-parallel
Strand 5	N	45	51	anti-parallel
Strand 6	N	58	60	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	N	10	12	first strand
Strand 2	N	115	119	parallel
Strand 3	N	93	98	anti-parallel
Strand 4	N	110	111	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	N	142	147	first strand
Strand 2	N	199	205	anti-parallel
Strand 3	N	191	196	anti-parallel

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There are 5 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	182	183	first strand
Strand 2	N	174	178	anti-parallel
Strand 3	N	164	167	anti-parallel
Strand 4	N	214	216	anti-parallel
Strand 5	N	231	232	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: 8IEC

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