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

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 1BTO entry

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

Chain ID	Initial residue	Terminal residue
A	SER 1	PHE 374
B	SER 1	PHE 374
C	SER 1	PHE 374
D	SER 1	PHE 374

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

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	47	54	Right-handed alpha
Helix 2	2	A	101	104	Right-handed alpha
Helix 3	3	A	154	156	Right-handed 310
Helix 4	4	A	166	173	Right-handed alpha
Helix 5	5	A	175	184	Right-handed alpha
Helix 6	6	A	202	213	Right-handed alpha
Helix 7	7	A	226	235	Right-handed 310
Helix 8	8	A	243	245	Right-handed 310
Helix 9	9	A	250	257	Right-handed alpha
Helix 10	10	A	272	281	Right-handed alpha
Helix 11	11	A	305	309	Right-handed 310
Helix 12	12	A	319	321	Right-handed 310
Helix 13	13	A	324	336	Right-handed alpha
Helix 14	14	A	343	345	Right-handed 310
Helix 15	15	A	352	363	Right-handed 310
Helix 16	16	B	47	54	Right-handed alpha
Helix 17	17	B	101	104	Right-handed alpha
Helix 18	18	B	154	156	Right-handed 310
Helix 19	19	B	166	173	Right-handed alpha
Helix 20	20	B	175	184	Right-handed alpha
Helix 21	21	B	202	213	Right-handed alpha
Helix 22	22	B	226	234	Right-handed 310
Helix 23	23	B	243	245	Right-handed 310
Helix 24	24	B	250	257	Right-handed alpha
Helix 25	25	B	272	281	Right-handed alpha
Helix 26	26	B	305	309	Right-handed 310
Helix 27	27	B	319	321	Right-handed 310
Helix 28	28	B	324	336	Right-handed alpha
Helix 29	29	B	343	345	Right-handed 310
Helix 30	30	B	352	364	Right-handed 310
Helix 31	31	C	47	54	Right-handed alpha
Helix 32	32	C	101	104	Right-handed alpha
Helix 33	33	C	154	156	Right-handed 310
Helix 34	34	C	166	173	Right-handed alpha
Helix 35	35	C	175	184	Right-handed alpha
Helix 36	36	C	202	213	Right-handed alpha
Helix 37	37	C	226	234	Right-handed 310
Helix 38	38	C	243	245	Right-handed 310
Helix 39	39	C	250	257	Right-handed alpha
Helix 40	40	C	272	280	Right-handed alpha
Helix 41	41	C	305	309	Right-handed 310
Helix 42	42	C	319	321	Right-handed 310
Helix 43	43	C	324	336	Right-handed alpha
Helix 44	44	C	343	345	Right-handed 310
Helix 45	45	C	352	363	Right-handed 310
Helix 46	46	D	47	54	Right-handed alpha
Helix 47	47	D	101	104	Right-handed alpha
Helix 48	48	D	154	156	Right-handed 310
Helix 49	49	D	166	173	Right-handed alpha
Helix 50	50	D	175	184	Right-handed alpha
Helix 51	51	D	202	213	Right-handed alpha
Helix 52	52	D	226	234	Right-handed 310
Helix 53	53	D	243	245	Right-handed 310
Helix 54	54	D	250	257	Right-handed alpha
Helix 55	55	D	272	281	Right-handed alpha
Helix 56	56	D	305	309	Right-handed 310
Helix 57	57	D	319	321	Right-handed 310
Helix 58	58	D	324	336	Right-handed alpha
Helix 59	59	D	343	345	Right-handed 310
Helix 60	60	D	352	364	Right-handed 310

There are 23 sheets in PDB entry 1BTO. 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,

There are 2 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	7	13	first strand
Strand 2	A	22	28	anti-parallel

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There are 3 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	149	153	first strand
Strand 2	A	35	40	anti-parallel
Strand 3	A	71	76	anti-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	42	44	first strand
Strand 2	A	369	373	anti-parallel
Strand 3	A	346	351	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	89	91	first strand
Strand 2	A	157	159	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	130	132	first strand
Strand 2	A	135	137	anti-parallel

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There are 12 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	239	241	first strand
Strand 2	D	218	222	parallel
Strand 3	D	194	198	parallel
Strand 4	D	264	267	parallel
Strand 5	D	288	291	parallel
Strand 6	D	313	316	parallel
Strand 7	A	313	316	anti-parallel
Strand 8	A	288	291	parallel
Strand 9	A	264	267	parallel
Strand 10	A	194	198	parallel
Strand 11	A	218	222	parallel
Strand 12	A	239	241	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	A	301	303	first strand
Strand 2	D	301	303	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	7	13	first strand
Strand 2	B	22	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	149	153	first strand
Strand 2	B	35	40	anti-parallel
Strand 3	B	71	76	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	42	44	first strand
Strand 2	B	369	373	anti-parallel
Strand 3	B	346	351	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	B	89	91	first strand
Strand 2	B	157	159	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	B	130	132	first strand
Strand 2	B	135	137	anti-parallel

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There are 12 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	239	241	first strand
Strand 2	C	218	222	parallel
Strand 3	C	194	198	parallel
Strand 4	C	264	267	parallel
Strand 5	C	288	291	parallel
Strand 6	C	313	316	parallel
Strand 7	B	313	316	anti-parallel
Strand 8	B	288	291	parallel
Strand 9	B	264	267	parallel
Strand 10	B	194	198	parallel
Strand 11	B	218	222	parallel
Strand 12	B	239	241	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	B	301	303	first strand
Strand 2	C	301	303	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	C	7	13	first strand
Strand 2	C	22	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	149	153	first strand
Strand 2	C	35	40	anti-parallel
Strand 3	C	71	76	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	42	44	first strand
Strand 2	C	369	373	anti-parallel
Strand 3	C	346	351	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	C	89	91	first strand
Strand 2	C	157	159	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	130	132	first strand
Strand 2	C	135	137	anti-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	D	7	13	first strand
Strand 2	D	22	28	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	149	153	first strand
Strand 2	D	35	40	anti-parallel
Strand 3	D	71	76	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	42	44	first strand
Strand 2	D	369	373	anti-parallel
Strand 3	D	346	351	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	D	89	91	first strand
Strand 2	D	157	159	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: 1BTO

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