Analysis of interatomic Contacts of Structural Units in PDB entry:
3IWZ

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 3IWZ entry

There are 4 chains in PDB entry 3IWZ (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LEU 22	GLY 228
B	LEU 22	GLY 228
C	ASP 23	THR 229
D	LEU 22	THR 229

There are 29 helices in PDB entry 3IWZ. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	23	32	Right-handed alpha
Helix 2	2	A	88	92	Right-handed 310
Helix 3	3	A	115	124	Right-handed alpha
Helix 4	4	A	126	128	Right-handed 310
Helix 5	5	A	129	158	Right-handed alpha
Helix 6	6	A	159	172	Right-handed alpha
Helix 7	7	A	189	198	Right-handed alpha
Helix 8	8	A	200	214	Right-handed alpha
Helix 9	9	B	23	33	Right-handed alpha
Helix 10	10	B	88	93	Right-handed alpha
Helix 11	11	B	115	124	Right-handed alpha
Helix 12	12	B	129	158	Right-handed alpha
Helix 13	13	B	159	172	Right-handed alpha
Helix 14	14	B	189	198	Right-handed alpha
Helix 15	15	B	200	214	Right-handed alpha
Helix 16	16	C	23	33	Right-handed alpha
Helix 17	17	C	88	92	Right-handed 310
Helix 18	18	C	115	123	Right-handed alpha
Helix 19	19	C	129	158	Right-handed alpha
Helix 20	20	C	159	170	Right-handed alpha
Helix 21	21	C	189	198	Right-handed alpha
Helix 22	22	C	200	213	Right-handed alpha
Helix 23	23	D	23	33	Right-handed alpha
Helix 24	24	D	88	92	Right-handed 310
Helix 25	25	D	115	123	Right-handed alpha
Helix 26	26	D	129	158	Right-handed alpha
Helix 27	27	D	159	173	Right-handed alpha
Helix 28	28	D	189	198	Right-handed alpha
Helix 29	29	D	200	214	Right-handed alpha

There are 12 sheets in PDB entry 3IWZ. 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 4 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	35	39	first strand
Strand 2	A	108	114	anti-parallel
Strand 3	A	54	60	anti-parallel
Strand 4	A	85	86	anti-parallel

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There are 4 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	44	46	first strand
Strand 2	A	101	104	anti-parallel
Strand 3	A	63	68	anti-parallel
Strand 4	A	74	80	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	178	180	first strand
Strand 2	A	183	187	anti-parallel
Strand 3	A	223	227	anti-parallel
Strand 4	A	217	220	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	B	35	39	first strand
Strand 2	B	108	114	anti-parallel
Strand 3	B	54	60	anti-parallel
Strand 4	B	85	86	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	44	46	first strand
Strand 2	B	101	104	anti-parallel
Strand 3	B	63	68	anti-parallel
Strand 4	B	74	80	anti-parallel

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There are 3 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	184	186	first strand
Strand 2	B	224	226	anti-parallel
Strand 3	B	217	218	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	35	39	first strand
Strand 2	C	108	114	anti-parallel
Strand 3	C	54	60	anti-parallel
Strand 4	C	85	86	anti-parallel

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There are 4 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	44	46	first strand
Strand 2	C	101	104	anti-parallel
Strand 3	C	63	68	anti-parallel
Strand 4	C	74	80	anti-parallel

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There are 2 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	219	220	first strand
Strand 2	C	223	224	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	35	39	first strand
Strand 2	D	108	114	anti-parallel
Strand 3	D	54	60	anti-parallel
Strand 4	D	85	86	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	44	46	first strand
Strand 2	D	101	104	anti-parallel
Strand 3	D	63	68	anti-parallel
Strand 4	D	74	80	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	178	179	first strand
Strand 2	D	183	186	anti-parallel
Strand 3	D	223	227	anti-parallel
Strand 4	D	217	220	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: 3IWZ

Analysis of interatomic Contacts of Structural Units in PDB entry:
3IWZ