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

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 4XPT entry

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

Chain ID	Initial residue	Terminal residue
A	ASP 25	ASP 599
L	GLU 1	GLU 214
H	GLU 1	ARG 219

There are 37 helices in PDB entry 4XPT. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	32	45	Right-handed alpha
Helix 2	AA2	A	46	52	Right-handed alpha
Helix 3	AA3	A	52	60	Right-handed alpha
Helix 4	AA4	A	61	64	Right-handed 310
Helix 5	AA5	A	65	76	Right-handed alpha
Helix 6	AA6	A	76	92	Right-handed alpha
Helix 7	AA7	A	94	103	Right-handed alpha
Helix 8	AA8	A	107	137	Right-handed alpha
Helix 9	AA9	A	210	219	Right-handed alpha
Helix 10	AB1	A	222	226	Right-handed 310
Helix 11	AB2	A	236	254	Right-handed alpha
Helix 12	AB3	A	257	269	Right-handed alpha
Helix 13	AB4	A	270	285	Right-handed alpha
Helix 14	AB5	A	288	298	Right-handed alpha
Helix 15	AB6	A	300	306	Right-handed 310
Helix 16	AB7	A	307	322	Right-handed alpha
Helix 17	AB8	A	326	334	Right-handed alpha
Helix 18	AB9	A	340	371	Right-handed alpha
Helix 19	AC1	A	377	382	Right-handed alpha
Helix 20	AC2	A	384	391	Right-handed alpha
Helix 21	AC3	A	391	400	Right-handed alpha
Helix 22	AC4	A	402	437	Right-handed alpha
Helix 23	AC5	A	437	443	Right-handed alpha
Helix 24	AC6	A	443	460	Right-handed alpha
Helix 25	AC7	A	466	478	Right-handed alpha
Helix 26	AC8	A	481	496	Right-handed alpha
Helix 27	AC9	A	499	512	Right-handed alpha
Helix 28	AD1	A	516	525	Right-handed alpha
Helix 29	AD2	A	525	541	Right-handed alpha
Helix 30	AD3	A	553	569	Right-handed alpha
Helix 31	AD4	A	569	582	Right-handed alpha
Helix 32	AD5	A	585	595	Right-handed alpha
Helix 33	AD6	L	80	84	Right-handed 310
Helix 34	AD7	L	122	127	Right-handed alpha
Helix 35	AD8	L	184	189	Right-handed alpha
Helix 36	AD9	H	28	32	Right-handed 310
Helix 37	AE1	H	87	91	Right-handed 310

There are 12 sheets in PDB entry 4XPT. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3,

There are 2 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	546	547	first strand
Strand 2	A	550	551	anti-parallel

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There are 3 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	4	7	first strand
Strand 2	L	19	29	anti-parallel
Strand 3	L	63	76	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	L	10	13	first strand
Strand 2	L	103	107	parallel
Strand 3	L	86	91	anti-parallel
Strand 4	L	34	39	anti-parallel
Strand 5	L	45	49	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	L	10	13	first strand
Strand 2	L	103	107	parallel
Strand 3	L	86	91	anti-parallel
Strand 4	L	98	99	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	L	115	119	first strand
Strand 2	L	130	140	anti-parallel
Strand 3	L	174	183	anti-parallel
Strand 4	L	160	164	anti-parallel

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There are 2 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	193	197	first strand
Strand 2	L	206	210	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	H	3	7	first strand
Strand 2	H	19	25	anti-parallel
Strand 3	H	78	82	anti-parallel
Strand 4	H	69	73	anti-parallel

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There are 6 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	11	12	first strand
Strand 2	H	113	117	parallel
Strand 3	H	92	98	anti-parallel
Strand 4	H	34	39	anti-parallel
Strand 5	H	45	51	anti-parallel
Strand 6	H	58	60	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	H	11	12	first strand
Strand 2	H	113	117	parallel
Strand 3	H	92	98	anti-parallel
Strand 4	H	108	109	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	H	126	130	first strand
Strand 2	H	141	151	anti-parallel
Strand 3	H	181	190	anti-parallel
Strand 4	H	169	171	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	H	126	130	first strand
Strand 2	H	141	151	anti-parallel
Strand 3	H	181	190	anti-parallel
Strand 4	H	175	176	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	H	157	160	first strand
Strand 2	H	200	205	anti-parallel
Strand 3	H	210	215	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: 4XPT

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