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

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 1XPL entry

There are 8 chains in PDB entry 1XPL (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 2	ALA 110
A	TYR 112	GLU 390
B	ALA 2	ALA 110
B	TYR 112	GLU 390
C	ALA 2	ALA 110
C	TYR 112	GLU 390
D	ALA 2	ALA 110
D	TYR 112	GLU 390

There are 79 helices in PDB entry 1XPL. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	19	26	Right-handed alpha
Helix 2	2	A	29	35	Right-handed alpha
Helix 3	3	A	50	61	Right-handed alpha
Helix 4	4	A	64	70	Right-handed alpha
Helix 5	5	A	87	96	Right-handed alpha
Helix 6	6	A	109	112	Right-handed 310
Helix 7	7	A	113	126	Right-handed alpha
Helix 8	8	A	149	153	Right-handed 310
Helix 9	9	A	197	221	Right-handed alpha
Helix 10	10	A	223	227	Right-handed 310
Helix 11	11	A	236	248	Right-handed alpha
Helix 12	12	A	249	251	Right-handed 310
Helix 13	13	A	252	267	Right-handed alpha
Helix 14	14	A	268	273	Right-handed 310
Helix 15	15	A	276	278	Right-handed 310
Helix 16	16	A	279	292	Right-handed alpha
Helix 17	17	A	321	326	Right-handed 310
Helix 18	18	A	327	337	Right-handed alpha
Helix 19	19	A	342	355	Right-handed alpha
Helix 20	20	A	364	369	Right-handed 310
Helix 21	21	B	19	26	Right-handed alpha
Helix 22	22	B	29	35	Right-handed alpha
Helix 23	23	B	50	61	Right-handed alpha
Helix 24	24	B	64	70	Right-handed alpha
Helix 25	25	B	87	96	Right-handed alpha
Helix 26	26	B	109	112	Right-handed 310
Helix 27	27	B	113	126	Right-handed alpha
Helix 28	28	B	149	153	Right-handed 310
Helix 29	29	B	197	221	Right-handed alpha
Helix 30	30	B	223	227	Right-handed 310
Helix 31	31	B	236	248	Right-handed alpha
Helix 32	32	B	249	251	Right-handed 310
Helix 33	33	B	252	267	Right-handed alpha
Helix 34	34	B	268	273	Right-handed 310
Helix 35	35	B	276	278	Right-handed 310
Helix 36	36	B	279	292	Right-handed alpha
Helix 37	37	B	321	326	Right-handed 310
Helix 38	38	B	327	337	Right-handed alpha
Helix 39	39	B	342	356	Right-handed alpha
Helix 40	40	B	364	369	Right-handed 310
Helix 41	41	C	19	26	Right-handed alpha
Helix 42	42	C	29	35	Right-handed alpha
Helix 43	43	C	50	61	Right-handed alpha
Helix 44	44	C	66	70	Right-handed alpha
Helix 45	45	C	87	96	Right-handed alpha
Helix 46	46	C	113	126	Right-handed alpha
Helix 47	47	C	149	153	Right-handed 310
Helix 48	48	C	199	221	Right-handed alpha
Helix 49	49	C	223	227	Right-handed 310
Helix 50	50	C	236	248	Right-handed alpha
Helix 51	51	C	249	251	Right-handed 310
Helix 52	52	C	252	268	Right-handed alpha
Helix 53	53	C	269	273	Right-handed 310
Helix 54	54	C	276	278	Right-handed 310
Helix 55	55	C	279	292	Right-handed alpha
Helix 56	56	C	321	326	Right-handed 310
Helix 57	57	C	327	337	Right-handed alpha
Helix 58	58	C	342	356	Right-handed alpha
Helix 59	59	C	364	368	Right-handed 310
Helix 60	60	D	19	26	Right-handed alpha
Helix 61	61	D	29	35	Right-handed alpha
Helix 62	62	D	50	61	Right-handed alpha
Helix 63	63	D	64	70	Right-handed alpha
Helix 64	64	D	87	96	Right-handed alpha
Helix 65	65	D	109	112	Right-handed 310
Helix 66	66	D	113	126	Right-handed alpha
Helix 67	67	D	149	153	Right-handed 310
Helix 68	68	D	199	201	Right-handed alpha
Helix 69	69	D	202	221	Right-handed alpha
Helix 70	70	D	223	227	Right-handed 310
Helix 71	71	D	236	248	Right-handed alpha
Helix 72	72	D	252	267	Right-handed alpha
Helix 73	73	D	269	273	Right-handed 310
Helix 74	74	D	276	278	Right-handed 310
Helix 75	75	D	279	292	Right-handed alpha
Helix 76	76	D	321	326	Right-handed 310
Helix 77	77	D	327	337	Right-handed alpha
Helix 78	78	D	342	356	Right-handed alpha
Helix 79	79	D	364	369	Right-handed 310

There are 16 sheets in PDB entry 1XPL. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P,

There are 16 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	176	179	first strand
Strand 2	A	310	318	anti-parallel
Strand 3	A	169	171	anti-parallel
Strand 4	A	3	11	anti-parallel
Strand 5	A	154	164	anti-parallel
Strand 6	A	132	141	anti-parallel
Strand 7	A	71	77	parallel
Strand 8	A	103	108	parallel
Strand 9	B	103	108	anti-parallel
Strand 10	B	71	77	parallel
Strand 11	B	132	141	parallel
Strand 12	B	154	164	anti-parallel
Strand 13	B	3	11	anti-parallel
Strand 14	B	169	171	anti-parallel
Strand 15	B	310	318	anti-parallel
Strand 16	B	176	179	anti-parallel

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There are 18 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	229	232	first strand
Strand 2	A	299	306	parallel
Strand 3	A	310	318	anti-parallel
Strand 4	A	169	171	anti-parallel
Strand 5	A	3	11	anti-parallel
Strand 6	A	154	164	anti-parallel
Strand 7	A	132	141	anti-parallel
Strand 8	A	71	77	parallel
Strand 9	A	103	108	parallel
Strand 10	B	103	108	anti-parallel
Strand 11	B	71	77	parallel
Strand 12	B	132	141	parallel
Strand 13	B	154	164	anti-parallel
Strand 14	B	3	11	anti-parallel
Strand 15	B	169	171	anti-parallel
Strand 16	B	310	318	anti-parallel
Strand 17	B	299	306	anti-parallel
Strand 18	B	229	232	parallel

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There are 3 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	41	44	first strand
Strand 2	A	15	18	anti-parallel
Strand 3	A	339	340	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	185	186	first strand
Strand 2	A	195	196	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	373	378	first strand
Strand 2	A	381	385	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	41	44	first strand
Strand 2	B	15	18	anti-parallel
Strand 3	B	339	341	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	185	186	first strand
Strand 2	B	195	196	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	373	378	first strand
Strand 2	B	381	385	anti-parallel

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There are 16 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	176	179	first strand
Strand 2	C	310	318	anti-parallel
Strand 3	C	169	171	anti-parallel
Strand 4	C	3	11	anti-parallel
Strand 5	C	154	164	anti-parallel
Strand 6	C	132	141	anti-parallel
Strand 7	C	71	77	parallel
Strand 8	C	103	108	parallel
Strand 9	D	103	108	anti-parallel
Strand 10	D	71	77	parallel
Strand 11	D	132	141	parallel
Strand 12	D	154	164	anti-parallel
Strand 13	D	3	11	anti-parallel
Strand 14	D	169	171	anti-parallel
Strand 15	D	310	318	anti-parallel
Strand 16	D	176	179	anti-parallel

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There are 18 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	229	232	first strand
Strand 2	C	299	306	parallel
Strand 3	C	310	318	anti-parallel
Strand 4	C	169	171	anti-parallel
Strand 5	C	3	11	anti-parallel
Strand 6	C	154	164	anti-parallel
Strand 7	C	132	141	anti-parallel
Strand 8	C	71	77	parallel
Strand 9	C	103	108	parallel
Strand 10	D	103	108	anti-parallel
Strand 11	D	71	77	parallel
Strand 12	D	132	141	parallel
Strand 13	D	154	164	anti-parallel
Strand 14	D	3	11	anti-parallel
Strand 15	D	169	171	anti-parallel
Strand 16	D	310	318	anti-parallel
Strand 17	D	299	306	anti-parallel
Strand 18	D	229	232	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	41	44	first strand
Strand 2	C	15	18	anti-parallel
Strand 3	C	339	340	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	185	186	first strand
Strand 2	C	195	196	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	373	378	first strand
Strand 2	C	381	385	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	41	44	first strand
Strand 2	D	15	18	anti-parallel
Strand 3	D	339	340	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	185	186	first strand
Strand 2	D	195	196	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	373	378	first strand
Strand 2	D	381	385	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: 1XPL

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