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

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 4XOI entry

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

Chain ID	Initial residue	Terminal residue
A	ILE 4	GLN 180
B	VAL 3	VAL 269
C	ILE 4	GLN 180
D	ASN 4	VAL 269

There are 27 helices in PDB entry 4XOI. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	17	28	Right-handed alpha
Helix 2	AA2	A	63	67	Right-handed 310
Helix 3	AA3	A	69	74	Right-handed 310
Helix 4	AA4	A	88	98	Right-handed alpha
Helix 5	AA5	A	98	107	Right-handed alpha
Helix 6	AA6	A	118	122	Right-handed 310
Helix 7	AA7	A	124	134	Right-handed alpha
Helix 8	AA8	A	140	152	Right-handed alpha
Helix 9	AA9	A	166	180	Right-handed alpha
Helix 10	AB1	B	4	32	Right-handed alpha
Helix 11	AB2	B	35	39	Right-handed 310
Helix 12	AB3	B	42	71	Right-handed alpha
Helix 13	AB4	B	103	113	Right-handed alpha
Helix 14	AB5	B	237	241	Right-handed 310
Helix 15	AB6	C	17	28	Right-handed alpha
Helix 16	AB7	C	69	73	Right-handed 310
Helix 17	AB8	C	88	98	Right-handed alpha
Helix 18	AB9	C	98	107	Right-handed alpha
Helix 19	AC1	C	118	122	Right-handed 310
Helix 20	AC2	C	124	133	Right-handed alpha
Helix 21	AC3	C	140	152	Right-handed alpha
Helix 22	AC4	C	166	180	Right-handed alpha
Helix 23	AC5	D	5	32	Right-handed alpha
Helix 24	AC6	D	35	39	Right-handed 310
Helix 25	AC7	D	42	71	Right-handed alpha
Helix 26	AC8	D	103	113	Right-handed alpha
Helix 27	AC9	D	239	241	Right-handed 310

There are 10 sheets in PDB entry 4XOI. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1,

There are 6 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	39	48	first strand
Strand 2	A	51	60	anti-parallel
Strand 3	A	5	12	parallel
Strand 4	A	79	85	parallel
Strand 5	A	112	117	parallel
Strand 6	A	155	158	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	B	144	145	first strand
Strand 2	B	148	150	anti-parallel
Strand 3	B	91	101	anti-parallel
Strand 4	B	155	160	anti-parallel

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There are 5 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	144	145	first strand
Strand 2	B	148	150	anti-parallel
Strand 3	B	91	101	anti-parallel
Strand 4	B	260	268	anti-parallel
Strand 5	B	245	247	anti-parallel

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There are 3 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	132	134	first strand
Strand 2	B	117	126	anti-parallel
Strand 3	B	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	B	132	134	first strand
Strand 2	B	117	126	anti-parallel
Strand 3	B	166	176	anti-parallel
Strand 4	B	229	236	anti-parallel

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There are 6 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	39	48	first strand
Strand 2	C	51	60	anti-parallel
Strand 3	C	5	12	parallel
Strand 4	C	79	85	parallel
Strand 5	C	112	117	parallel
Strand 6	C	155	158	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	144	145	first strand
Strand 2	D	148	150	anti-parallel
Strand 3	D	91	101	anti-parallel
Strand 4	D	155	160	anti-parallel

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There are 5 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	144	145	first strand
Strand 2	D	148	150	anti-parallel
Strand 3	D	91	101	anti-parallel
Strand 4	D	260	268	anti-parallel
Strand 5	D	245	247	anti-parallel

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There are 3 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	132	134	first strand
Strand 2	D	117	126	anti-parallel
Strand 3	D	138	139	anti-parallel

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There are 4 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	132	134	first strand
Strand 2	D	117	126	anti-parallel
Strand 3	D	165	176	anti-parallel
Strand 4	D	229	237	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: 4XOI

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