Analysis of interatomic Contacts of Structural Units in PDB entry:
1I7A

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 1I7A entry

There are 5 chains in PDB entry 1I7A (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLU 3	ARG 111
B	GLU 3	ARG 111
C	GLU 3	ARG 111
D	GLU 3	ARG 111
E	PHE 201	PHE 203

There are 5 helices in PDB entry 1I7A. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	92	111	Right-handed alpha
Helix 2	2	B	80	83	Right-handed 310
Helix 3	3	B	92	109	Right-handed alpha
Helix 4	4	C	92	108	Right-handed alpha
Helix 5	5	D	92	111	Right-handed alpha

There are 8 sheets in PDB entry 1I7A. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	54	61	first strand
Strand 2	A	44	51	anti-parallel
Strand 3	A	32	39	anti-parallel
Strand 4	A	7	15	anti-parallel
Strand 5	A	25	26	first strand

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	54	61	first strand
Strand 2	A	44	51	anti-parallel
Strand 3	A	32	39	anti-parallel
Strand 4	A	7	15	anti-parallel
Strand 5	A	84	89	first strand
Strand 6	A	74	79	anti-parallel
Strand 7	A	67	69	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	54	60	first strand
Strand 2	B	44	51	anti-parallel
Strand 3	B	32	39	anti-parallel
Strand 4	B	7	16	anti-parallel
Strand 5	B	25	26	first strand

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	54	60	first strand
Strand 2	B	44	51	anti-parallel
Strand 3	B	32	39	anti-parallel
Strand 4	B	7	16	anti-parallel
Strand 5	B	84	89	first strand
Strand 6	B	74	79	anti-parallel
Strand 7	B	67	69	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	54	60	first strand
Strand 2	C	44	51	anti-parallel
Strand 3	C	32	39	anti-parallel
Strand 4	C	7	16	anti-parallel
Strand 5	C	25	26	first strand

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	54	60	first strand
Strand 2	C	44	51	anti-parallel
Strand 3	C	32	39	anti-parallel
Strand 4	C	7	16	anti-parallel
Strand 5	C	84	90	first strand
Strand 6	C	74	79	anti-parallel
Strand 7	C	67	71	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	54	60	first strand
Strand 2	D	44	51	anti-parallel
Strand 3	D	32	39	anti-parallel
Strand 4	D	7	16	anti-parallel
Strand 5	D	25	26	first strand

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	54	60	first strand
Strand 2	D	44	51	anti-parallel
Strand 3	D	32	39	anti-parallel
Strand 4	D	7	16	anti-parallel
Strand 5	D	84	89	first strand
Strand 6	D	74	79	anti-parallel
Strand 7	D	67	69	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: 1I7A

Analysis of interatomic Contacts of Structural Units in PDB entry:
1I7A