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

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 1XEA entry

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

Chain ID	Initial residue	Terminal residue
A	SER 2	LYS 312
B	SER 2	LYS 312
C	SER 2	LYS 312
D	SER 2	LYS 312

There are 60 helices in PDB entry 1XEA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	11	17	Right-handed alpha
Helix 2	2	A	17	23	Right-handed alpha
Helix 3	3	A	36	47	Right-handed alpha
Helix 4	4	A	57	63	Right-handed 310
Helix 5	5	A	72	74	Right-handed 310
Helix 6	6	A	75	86	Right-handed alpha
Helix 7	7	A	99	113	Right-handed alpha
Helix 8	8	A	121	125	Right-handed 310
Helix 9	9	A	126	133	Right-handed alpha
Helix 10	10	A	133	139	Right-handed alpha
Helix 11	11	A	159	166	Right-handed alpha
Helix 12	12	A	168	176	Right-handed alpha
Helix 13	13	A	261	266	Right-handed alpha
Helix 14	14	A	267	281	Right-handed alpha
Helix 15	15	A	285	312	Right-handed alpha
Helix 16	16	B	11	17	Right-handed alpha
Helix 17	17	B	17	24	Right-handed alpha
Helix 18	18	B	36	47	Right-handed alpha
Helix 19	19	B	59	63	Right-handed 310
Helix 20	20	B	72	74	Right-handed 310
Helix 21	21	B	75	87	Right-handed alpha
Helix 22	22	B	99	113	Right-handed alpha
Helix 23	23	B	121	125	Right-handed 310
Helix 24	24	B	126	133	Right-handed alpha
Helix 25	25	B	133	139	Right-handed alpha
Helix 26	26	B	159	167	Right-handed alpha
Helix 27	27	B	168	175	Right-handed alpha
Helix 28	28	B	261	266	Right-handed alpha
Helix 29	29	B	267	282	Right-handed alpha
Helix 30	30	B	285	312	Right-handed alpha
Helix 31	31	C	11	17	Right-handed alpha
Helix 32	32	C	17	23	Right-handed alpha
Helix 33	33	C	36	47	Right-handed alpha
Helix 34	34	C	57	63	Right-handed 310
Helix 35	35	C	72	74	Right-handed 310
Helix 36	36	C	75	86	Right-handed alpha
Helix 37	37	C	99	113	Right-handed alpha
Helix 38	38	C	121	125	Right-handed 310
Helix 39	39	C	126	133	Right-handed alpha
Helix 40	40	C	133	139	Right-handed alpha
Helix 41	41	C	159	167	Right-handed alpha
Helix 42	42	C	168	176	Right-handed alpha
Helix 43	43	C	261	266	Right-handed alpha
Helix 44	44	C	267	282	Right-handed alpha
Helix 45	45	C	285	311	Right-handed alpha
Helix 46	46	D	11	17	Right-handed alpha
Helix 47	47	D	17	24	Right-handed alpha
Helix 48	48	D	36	47	Right-handed alpha
Helix 49	49	D	55	63	Right-handed 310
Helix 50	50	D	72	74	Right-handed 310
Helix 51	51	D	75	85	Right-handed alpha
Helix 52	52	D	99	112	Right-handed alpha
Helix 53	53	D	121	125	Right-handed 310
Helix 54	54	D	126	133	Right-handed alpha
Helix 55	55	D	133	139	Right-handed alpha
Helix 56	56	D	159	167	Right-handed alpha
Helix 57	57	D	168	176	Right-handed alpha
Helix 58	58	D	261	266	Right-handed alpha
Helix 59	59	D	267	282	Right-handed alpha
Helix 60	60	D	285	312	Right-handed alpha

There are 8 sheets in PDB entry 1XEA. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 5 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	28	33	first strand
Strand 2	A	3	8	parallel
Strand 3	A	66	69	parallel
Strand 4	A	90	93	parallel
Strand 5	A	117	120	parallel

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There are 8 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	186	193	first strand
Strand 2	A	196	206	anti-parallel
Strand 3	A	209	216	anti-parallel
Strand 4	A	146	152	parallel
Strand 5	A	223	230	anti-parallel
Strand 6	A	233	237	anti-parallel
Strand 7	A	242	247	anti-parallel
Strand 8	A	250	255	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	28	33	first strand
Strand 2	B	3	8	parallel
Strand 3	B	66	69	parallel
Strand 4	B	90	93	parallel
Strand 5	B	117	120	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	186	193	first strand
Strand 2	B	196	206	anti-parallel
Strand 3	B	209	216	anti-parallel
Strand 4	B	146	152	parallel
Strand 5	B	223	230	anti-parallel
Strand 6	B	233	237	anti-parallel
Strand 7	B	242	247	anti-parallel
Strand 8	B	250	255	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	52	53	first strand
Strand 2	C	28	33	parallel
Strand 3	C	3	8	parallel
Strand 4	C	66	69	parallel
Strand 5	C	90	93	parallel
Strand 6	C	117	120	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	186	193	first strand
Strand 2	C	196	206	anti-parallel
Strand 3	C	209	216	anti-parallel
Strand 4	C	146	152	parallel
Strand 5	C	223	230	anti-parallel
Strand 6	C	233	237	anti-parallel
Strand 7	C	242	247	anti-parallel
Strand 8	C	250	255	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	52	53	first strand
Strand 2	D	28	33	parallel
Strand 3	D	3	8	parallel
Strand 4	D	66	69	parallel
Strand 5	D	90	93	parallel
Strand 6	D	117	120	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	186	193	first strand
Strand 2	D	196	206	anti-parallel
Strand 3	D	209	216	anti-parallel
Strand 4	D	146	152	parallel
Strand 5	D	223	229	anti-parallel
Strand 6	D	233	237	anti-parallel
Strand 7	D	242	247	anti-parallel
Strand 8	D	250	255	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: 1XEA

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