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

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 1XPQ entry

There are 4 chains in PDB entry 1XPQ (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 6	HIS 513
B	LYS 8	LEU 509
C	PRO 6	GLU 510
D	LYS 8	LEU 507

There are 88 helices in PDB entry 1XPQ. 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	31	Right-handed alpha
Helix 2	AA2	A	54	56	Right-handed 310
Helix 3	AA3	A	72	86	Right-handed alpha
Helix 4	AA4	A	114	130	Right-handed alpha
Helix 5	AA5	A	140	153	Right-handed alpha
Helix 6	AA6	A	154	156	Right-handed 310
Helix 7	AA7	A	157	169	Right-handed alpha
Helix 8	AA8	A	170	176	Right-handed alpha
Helix 9	AA9	A	183	188	Right-handed alpha
Helix 10	AB1	A	201	210	Right-handed alpha
Helix 11	AB2	A	211	212	Right-handed 310
Helix 12	AB3	A	213	215	Right-handed 310
Helix 13	AB4	A	254	261	Right-handed alpha
Helix 14	AB5	A	279	286	Right-handed alpha
Helix 15	AB6	A	320	329	Right-handed alpha
Helix 16	AB7	A	332	340	Right-handed alpha
Helix 17	AB8	A	352	356	Right-handed 310
Helix 18	AB9	A	363	368	Right-handed alpha
Helix 19	AC1	A	379	386	Right-handed alpha
Helix 20	AC2	A	390	409	Right-handed alpha
Helix 21	AC3	A	459	468	Right-handed alpha
Helix 22	AC4	A	478	482	Right-handed 310
Helix 23	AC5	A	488	510	Right-handed alpha
Helix 24	AC6	B	17	30	Right-handed alpha
Helix 25	AC7	B	54	56	Right-handed 310
Helix 26	AC8	B	72	86	Right-handed alpha
Helix 27	AC9	B	114	131	Right-handed alpha
Helix 28	AD1	B	140	153	Right-handed alpha
Helix 29	AD2	B	154	156	Right-handed 310
Helix 30	AD3	B	157	168	Right-handed alpha
Helix 31	AD4	B	171	176	Right-handed alpha
Helix 32	AD5	B	183	188	Right-handed alpha
Helix 33	AD6	B	201	210	Right-handed alpha
Helix 34	AD7	B	211	212	Right-handed 310
Helix 35	AD8	B	213	215	Right-handed 310
Helix 36	AD9	B	254	261	Right-handed alpha
Helix 37	AE1	B	279	284	Right-handed alpha
Helix 38	AE2	B	285	289	Right-handed 310
Helix 39	AE3	B	320	330	Right-handed alpha
Helix 40	AE4	B	332	340	Right-handed alpha
Helix 41	AE5	B	363	367	Right-handed alpha
Helix 42	AE6	B	379	386	Right-handed alpha
Helix 43	AE7	B	390	409	Right-handed alpha
Helix 44	AE8	B	458	469	Right-handed alpha
Helix 45	AE9	B	488	508	Right-handed alpha
Helix 46	AF1	C	17	30	Right-handed alpha
Helix 47	AF2	C	54	56	Right-handed 310
Helix 48	AF3	C	72	86	Right-handed alpha
Helix 49	AF4	C	114	130	Right-handed alpha
Helix 50	AF5	C	140	153	Right-handed alpha
Helix 51	AF6	C	154	156	Right-handed 310
Helix 52	AF7	C	157	169	Right-handed alpha
Helix 53	AF8	C	171	176	Right-handed alpha
Helix 54	AF9	C	183	188	Right-handed alpha
Helix 55	AG1	C	201	210	Right-handed alpha
Helix 56	AG2	C	211	212	Right-handed 310
Helix 57	AG3	C	213	215	Right-handed 310
Helix 58	AG4	C	254	259	Right-handed alpha
Helix 59	AG5	C	260	262	Right-handed 310
Helix 60	AG6	C	279	286	Right-handed alpha
Helix 61	AG7	C	321	330	Right-handed alpha
Helix 62	AG8	C	332	339	Right-handed alpha
Helix 63	AG9	C	363	367	Right-handed alpha
Helix 64	AH1	C	379	387	Right-handed alpha
Helix 65	AH2	C	390	409	Right-handed alpha
Helix 66	AH3	C	458	469	Right-handed alpha
Helix 67	AH4	C	488	508	Right-handed alpha
Helix 68	AH5	D	17	30	Right-handed alpha
Helix 69	AH6	D	54	56	Right-handed 310
Helix 70	AH7	D	72	86	Right-handed alpha
Helix 71	AH8	D	114	130	Right-handed alpha
Helix 72	AH9	D	140	152	Right-handed alpha
Helix 73	AI1	D	153	156	Right-handed 310
Helix 74	AI2	D	157	168	Right-handed alpha
Helix 75	AI3	D	171	176	Right-handed alpha
Helix 76	AI4	D	201	210	Right-handed alpha
Helix 77	AI5	D	211	212	Right-handed 310
Helix 78	AI6	D	213	215	Right-handed 310
Helix 79	AI7	D	254	263	Right-handed alpha
Helix 80	AI8	D	279	286	Right-handed alpha
Helix 81	AI9	D	287	289	Right-handed 310
Helix 82	AJ1	D	320	330	Right-handed alpha
Helix 83	AJ2	D	332	340	Right-handed alpha
Helix 84	AJ3	D	363	368	Right-handed alpha
Helix 85	AJ4	D	379	387	Right-handed alpha
Helix 86	AJ5	D	390	409	Right-handed alpha
Helix 87	AJ6	D	459	468	Right-handed alpha
Helix 88	AJ7	D	488	506	Right-handed alpha

There are 23 sheets in PDB entry 1XPQ. 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, AC2, AC3, AC4, AC5,

There are 7 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	217	218	first strand
Strand 2	A	35	38	parallel
Strand 3	A	7	14	parallel
Strand 4	A	243	251	parallel
Strand 5	A	233	238	anti-parallel
Strand 6	A	223	229	anti-parallel
Strand 7	A	273	275	parallel

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There are 5 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	217	218	first strand
Strand 2	A	35	38	parallel
Strand 3	A	7	14	parallel
Strand 4	A	243	251	parallel
Strand 5	A	474	476	parallel

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There are 2 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	50	52	first strand
Strand 2	A	58	60	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	A	65	66	first strand
Strand 2	A	196	198	anti-parallel
Strand 3	A	90	92	anti-parallel

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There are 8 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	105	106	first strand
Strand 2	A	98	101	anti-parallel
Strand 3	A	312	315	parallel
Strand 4	A	358	362	anti-parallel
Strand 5	A	371	376	anti-parallel
Strand 6	A	295	301	anti-parallel
Strand 7	A	431	437	anti-parallel
Strand 8	A	415	416	parallel

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There are 7 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	217	218	first strand
Strand 2	B	35	38	parallel
Strand 3	B	9	14	parallel
Strand 4	B	243	251	parallel
Strand 5	B	233	238	anti-parallel
Strand 6	B	223	229	anti-parallel
Strand 7	B	273	275	parallel

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There are 5 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	217	218	first strand
Strand 2	B	35	38	parallel
Strand 3	B	9	14	parallel
Strand 4	B	243	251	parallel
Strand 5	B	474	476	parallel

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There are 2 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	50	52	first strand
Strand 2	B	58	60	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	B	65	66	first strand
Strand 2	B	196	198	anti-parallel
Strand 3	B	90	91	anti-parallel

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There are 8 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	105	106	first strand
Strand 2	B	98	101	anti-parallel
Strand 3	B	312	316	parallel
Strand 4	B	358	362	anti-parallel
Strand 5	B	371	376	anti-parallel
Strand 6	B	295	301	anti-parallel
Strand 7	B	431	437	anti-parallel
Strand 8	B	415	416	parallel

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There are 2 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	290	291	first strand
Strand 2	B	451	452	anti-parallel

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There are 7 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	217	219	first strand
Strand 2	C	35	39	parallel
Strand 3	C	7	14	parallel
Strand 4	C	243	251	parallel
Strand 5	C	233	238	anti-parallel
Strand 6	C	223	229	anti-parallel
Strand 7	C	273	275	parallel

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There are 5 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	217	219	first strand
Strand 2	C	35	39	parallel
Strand 3	C	7	14	parallel
Strand 4	C	243	251	parallel
Strand 5	C	474	476	parallel

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There are 2 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	50	52	first strand
Strand 2	C	58	60	anti-parallel

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There are 3 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	65	66	first strand
Strand 2	C	196	198	anti-parallel
Strand 3	C	90	92	anti-parallel

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There are 8 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	105	106	first strand
Strand 2	C	98	101	anti-parallel
Strand 3	C	312	315	parallel
Strand 4	C	358	362	anti-parallel
Strand 5	C	371	376	anti-parallel
Strand 6	C	295	301	anti-parallel
Strand 7	C	431	437	anti-parallel
Strand 8	C	415	416	parallel

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There are 2 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	290	292	first strand
Strand 2	C	450	452	anti-parallel

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There are 7 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	217	218	first strand
Strand 2	D	35	38	parallel
Strand 3	D	9	14	parallel
Strand 4	D	243	251	parallel
Strand 5	D	232	238	anti-parallel
Strand 6	D	223	229	anti-parallel
Strand 7	D	273	275	parallel

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There are 5 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	217	218	first strand
Strand 2	D	35	38	parallel
Strand 3	D	9	14	parallel
Strand 4	D	243	251	parallel
Strand 5	D	474	476	parallel

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There are 2 strands in AC2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	50	52	first strand
Strand 2	D	58	60	anti-parallel

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There are 3 strands in AC3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	65	66	first strand
Strand 2	D	196	198	anti-parallel
Strand 3	D	90	92	anti-parallel

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There are 8 strands in AC4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	105	106	first strand
Strand 2	D	98	101	anti-parallel
Strand 3	D	312	315	parallel
Strand 4	D	358	362	anti-parallel
Strand 5	D	371	376	anti-parallel
Strand 6	D	295	301	anti-parallel
Strand 7	D	431	437	anti-parallel
Strand 8	D	415	416	parallel

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There are 2 strands in AC5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	291	292	first strand
Strand 2	D	450	451	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: 1XPQ

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