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

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 1XBT entry

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

Chain ID	Initial residue	Terminal residue
A	ARG 18	LYS 191
B	ARG 18	LYS 191
C	ARG 18	LYS 191
D	ARG 18	LYS 191
E	ARG 18	LYS 191
F	ARG 18	LYS 192
G	ARG 18	LYS 191
H	ARG 18	LYS 191

There are 56 helices in PDB entry 1XBT. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	31	45	Right-handed alpha
Helix 2	2	A	80	83	Right-handed 310
Helix 3	3	A	84	90	Right-handed alpha
Helix 4	4	A	98	102	Right-handed 310
Helix 5	5	A	104	115	Right-handed alpha
Helix 6	6	A	135	143	Right-handed 310
Helix 7	7	A	185	190	Right-handed alpha
Helix 8	8	B	31	45	Right-handed alpha
Helix 9	9	B	80	83	Right-handed 310
Helix 10	10	B	84	90	Right-handed alpha
Helix 11	11	B	98	102	Right-handed 310
Helix 12	12	B	104	115	Right-handed alpha
Helix 13	13	B	135	143	Right-handed 310
Helix 14	14	B	185	191	Right-handed alpha
Helix 15	15	C	31	45	Right-handed alpha
Helix 16	16	C	80	83	Right-handed 310
Helix 17	17	C	84	90	Right-handed alpha
Helix 18	18	C	98	102	Right-handed 310
Helix 19	19	C	104	115	Right-handed alpha
Helix 20	20	C	135	143	Right-handed 310
Helix 21	21	C	185	191	Right-handed alpha
Helix 22	22	D	31	45	Right-handed alpha
Helix 23	23	D	80	83	Right-handed 310
Helix 24	24	D	84	90	Right-handed alpha
Helix 25	25	D	99	102	Right-handed 310
Helix 26	26	D	104	115	Right-handed alpha
Helix 27	27	D	135	143	Right-handed 310
Helix 28	28	D	185	191	Right-handed alpha
Helix 29	29	E	31	45	Right-handed alpha
Helix 30	30	E	80	83	Right-handed 310
Helix 31	31	E	84	90	Right-handed alpha
Helix 32	32	E	98	102	Right-handed 310
Helix 33	33	E	104	115	Right-handed alpha
Helix 34	34	E	135	143	Right-handed 310
Helix 35	35	E	185	191	Right-handed alpha
Helix 36	36	F	31	45	Right-handed alpha
Helix 37	37	F	80	83	Right-handed 310
Helix 38	38	F	84	90	Right-handed alpha
Helix 39	39	F	99	102	Right-handed 310
Helix 40	40	F	104	115	Right-handed alpha
Helix 41	41	F	135	143	Right-handed 310
Helix 42	42	F	185	191	Right-handed alpha
Helix 43	43	G	31	45	Right-handed alpha
Helix 44	44	G	80	83	Right-handed 310
Helix 45	45	G	84	90	Right-handed alpha
Helix 46	46	G	99	102	Right-handed 310
Helix 47	47	G	104	115	Right-handed alpha
Helix 48	48	G	135	143	Right-handed 310
Helix 49	49	G	185	191	Right-handed alpha
Helix 50	50	H	31	45	Right-handed alpha
Helix 51	51	H	80	83	Right-handed 310
Helix 52	52	H	84	90	Right-handed alpha
Helix 53	53	H	99	102	Right-handed 310
Helix 54	54	H	104	115	Right-handed alpha
Helix 55	55	H	135	143	Right-handed 310
Helix 56	56	H	185	191	Right-handed alpha

There are 24 sheets in PDB entry 1XBT. 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, Q, R, S, T, U, V, W, X,

There are 6 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	76	78	first strand
Strand 2	A	50	55	parallel
Strand 3	A	93	96	parallel
Strand 4	A	118	122	parallel
Strand 5	A	20	25	parallel
Strand 6	A	145	148	parallel

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There are 2 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	151	152	first strand
Strand 2	A	159	160	anti-parallel

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There are 2 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	162	165	first strand
Strand 2	A	181	184	anti-parallel

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There are 6 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	76	78	first strand
Strand 2	B	50	55	parallel
Strand 3	B	93	96	parallel
Strand 4	B	118	122	parallel
Strand 5	B	20	25	parallel
Strand 6	B	145	148	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	B	151	152	first strand
Strand 2	B	159	160	anti-parallel

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There are 2 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	162	165	first strand
Strand 2	B	181	184	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	C	76	78	first strand
Strand 2	C	50	55	parallel
Strand 3	C	93	96	parallel
Strand 4	C	118	122	parallel
Strand 5	C	20	25	parallel
Strand 6	C	145	148	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	C	151	152	first strand
Strand 2	C	159	160	anti-parallel

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There are 2 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	162	165	first strand
Strand 2	C	181	184	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	76	78	first strand
Strand 2	D	50	55	parallel
Strand 3	D	93	97	parallel
Strand 4	D	118	122	parallel
Strand 5	D	20	25	parallel
Strand 6	D	145	148	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	151	152	first strand
Strand 2	D	159	160	anti-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	D	162	165	first strand
Strand 2	D	181	184	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	76	78	first strand
Strand 2	E	50	55	parallel
Strand 3	E	93	96	parallel
Strand 4	E	118	122	parallel
Strand 5	E	20	25	parallel
Strand 6	E	145	148	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	151	152	first strand
Strand 2	E	159	160	anti-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	E	162	165	first strand
Strand 2	E	181	184	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	76	78	first strand
Strand 2	F	50	55	parallel
Strand 3	F	93	97	parallel
Strand 4	F	118	122	parallel
Strand 5	F	20	25	parallel
Strand 6	F	145	148	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	151	152	first strand
Strand 2	F	159	160	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	162	165	first strand
Strand 2	F	181	184	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	75	78	first strand
Strand 2	G	50	55	parallel
Strand 3	G	93	97	parallel
Strand 4	G	118	124	parallel
Strand 5	G	20	26	parallel
Strand 6	G	145	148	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	151	152	first strand
Strand 2	G	159	160	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	162	165	first strand
Strand 2	G	181	184	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	76	78	first strand
Strand 2	H	50	55	parallel
Strand 3	H	93	97	parallel
Strand 4	H	118	124	parallel
Strand 5	H	20	26	parallel
Strand 6	H	145	148	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	151	152	first strand
Strand 2	H	159	160	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	162	165	first strand
Strand 2	H	181	184	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: 1XBT

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