Analysis of interatomic Contacts of Structural Units in PDB entry:
4P2O

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 4P2O entry

There are 5 chains in PDB entry 4P2O (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ILE 1	PHE 180
B	ARG 4	LYS 189
C	GLN 2	PRO 201
D	ASP 1	ASP 244
P	PRO -4	VAL 16

There are 12 helices in PDB entry 4P2O. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	45	50	Right-handed 310
Helix 2	AA2	A	56	77	Right-handed alpha
Helix 3	AA3	B	54	63	Right-handed alpha
Helix 4	AA4	B	64	78	Right-handed alpha
Helix 5	AA5	B	78	87	Right-handed alpha
Helix 6	AA6	C	77	81	Right-handed 310
Helix 7	AA7	C	163	166	Right-handed 310
Helix 8	AA8	C	182	186	Right-handed 310
Helix 9	AA9	D	58	64	Right-handed alpha
Helix 10	AB1	D	83	87	Right-handed 310
Helix 11	AB2	D	131	139	Right-handed alpha
Helix 12	AB3	D	198	202	Right-handed alpha

There are 19 sheets in PDB entry 4P2O. 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, AB7, AB8, AB9, AC1,

There are 8 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	40	43	first strand
Strand 2	A	29	35	anti-parallel
Strand 3	A	19	26	anti-parallel
Strand 4	A	5	15	anti-parallel
Strand 5	B	7	17	anti-parallel
Strand 6	B	24	32	anti-parallel
Strand 7	B	35	41	anti-parallel
Strand 8	B	47	49	anti-parallel

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There are 2 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	52	53	first strand
Strand 2	P	-2	-1	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	88	93	first strand
Strand 2	A	103	112	anti-parallel
Strand 3	A	145	153	anti-parallel
Strand 4	A	132	134	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	88	93	first strand
Strand 2	A	103	112	anti-parallel
Strand 3	A	145	153	anti-parallel
Strand 4	A	138	139	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	A	126	127	first strand
Strand 2	A	118	123	anti-parallel
Strand 3	A	160	166	anti-parallel
Strand 4	A	174	179	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	B	98	104	first strand
Strand 2	B	114	122	anti-parallel
Strand 3	B	155	161	anti-parallel
Strand 4	B	142	144	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	B	98	104	first strand
Strand 2	B	114	122	anti-parallel
Strand 3	B	155	161	anti-parallel
Strand 4	B	148	149	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	136	137	first strand
Strand 2	B	128	133	anti-parallel
Strand 3	B	171	176	anti-parallel
Strand 4	B	184	188	anti-parallel

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There are 5 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	3	6	first strand
Strand 2	C	18	24	anti-parallel
Strand 3	C	68	73	anti-parallel
Strand 4	C	58	63	anti-parallel
Strand 5	C	51	55	anti-parallel

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There are 5 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	9	13	first strand
Strand 2	C	104	109	parallel
Strand 3	C	82	90	anti-parallel
Strand 4	C	28	36	anti-parallel
Strand 5	C	42	48	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	C	9	13	first strand
Strand 2	C	104	109	parallel
Strand 3	C	82	90	anti-parallel
Strand 4	C	98	100	anti-parallel

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There are 4 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	118	123	first strand
Strand 2	C	131	138	anti-parallel
Strand 3	C	167	176	anti-parallel
Strand 4	C	152	154	anti-parallel

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There are 4 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	118	123	first strand
Strand 2	C	131	138	anti-parallel
Strand 3	C	167	176	anti-parallel
Strand 4	C	158	162	anti-parallel

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There are 4 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	5	7	first strand
Strand 2	D	19	24	anti-parallel
Strand 3	D	75	79	anti-parallel
Strand 4	D	65	68	anti-parallel

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There are 6 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	10	14	first strand
Strand 2	D	109	114	parallel
Strand 3	D	88	95	anti-parallel
Strand 4	D	31	37	anti-parallel
Strand 5	D	43	50	anti-parallel
Strand 6	D	53	57	anti-parallel

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There are 4 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	10	14	first strand
Strand 2	D	109	114	parallel
Strand 3	D	88	95	anti-parallel
Strand 4	D	103	105	anti-parallel

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There are 4 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	124	128	first strand
Strand 2	D	140	150	anti-parallel
Strand 3	D	188	197	anti-parallel
Strand 4	D	170	172	anti-parallel

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There are 4 strands in AB9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	124	128	first strand
Strand 2	D	140	150	anti-parallel
Strand 3	D	188	197	anti-parallel
Strand 4	D	177	178	anti-parallel

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There are 4 strands in AC1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	164	166	first strand
Strand 2	D	155	161	anti-parallel
Strand 3	D	207	214	anti-parallel
Strand 4	D	233	240	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: 4P2O

Analysis of interatomic Contacts of Structural Units in PDB entry:
4P2O