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

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 1SQP entry

There are 11 chains in PDB entry 1SQP (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	THR 1	PHE 446
B	VAL 17	LEU 439
C	THR 2	TRP 379
D	SER 1	LYS 241
E	SER 1	GLY 196
F	VAL 6	LYS 110
G	GLY 1	ALA 75
H	GLU 12	LYS 78
I	MET 1	GLY 57
J	VAL 1	ASN 61
K	MET 1	LYS 53

There are 89 helices in PDB entry 1SQP. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	3	11	Right-handed alpha
Helix 2	2	A	54	63	Right-handed alpha
Helix 3	3	A	73	82	Right-handed alpha
Helix 4	4	A	105	119	Right-handed alpha
Helix 5	5	A	123	142	Right-handed alpha
Helix 6	6	A	144	158	Right-handed alpha
Helix 7	7	A	161	165	Right-handed 310
Helix 8	8	A	170	177	Right-handed alpha
Helix 9	9	A	178	190	Right-handed alpha
Helix 10	10	A	191	193	Right-handed 310
Helix 11	11	A	204	216	Right-handed alpha
Helix 12	12	A	266	278	Right-handed alpha
Helix 13	13	A	286	290	Right-handed 310
Helix 14	14	A	292	301	Right-handed alpha
Helix 15	15	A	327	329	Right-handed 310
Helix 16	16	A	330	349	Right-handed alpha
Helix 17	17	A	350	369	Right-handed alpha
Helix 18	18	A	371	386	Right-handed alpha
Helix 19	19	A	391	401	Right-handed alpha
Helix 20	20	A	403	415	Right-handed alpha
Helix 21	21	A	433	440	Right-handed alpha
Helix 22	22	B	54	58	Right-handed 310
Helix 23	23	B	64	72	Right-handed alpha
Helix 24	24	B	81	93	Right-handed alpha
Helix 25	25	B	115	129	Right-handed alpha
Helix 26	26	B	133	153	Right-handed alpha
Helix 27	27	B	154	168	Right-handed alpha
Helix 28	28	B	179	183	Right-handed 310
Helix 29	29	B	187	199	Right-handed alpha
Helix 30	30	B	200	202	Right-handed 310
Helix 31	31	B	212	224	Right-handed alpha
Helix 32	32	B	266	280	Right-handed alpha
Helix 33	33	B	293	301	Right-handed alpha
Helix 34	34	B	332	349	Right-handed alpha
Helix 35	35	B	353	372	Right-handed alpha
Helix 36	36	B	374	389	Right-handed alpha
Helix 37	37	B	394	405	Right-handed alpha
Helix 38	38	B	406	419	Right-handed alpha
Helix 39	39	C	3	8	Right-handed alpha
Helix 40	40	C	10	19	Right-handed alpha
Helix 41	41	C	28	31	Right-handed 310
Helix 42	42	C	32	53	Right-handed alpha
Helix 43	43	C	58	73	Right-handed alpha
Helix 44	44	C	75	104	Right-handed alpha
Helix 45	45	C	105	108	Right-handed 310
Helix 46	46	C	109	133	Right-handed alpha
Helix 47	47	C	136	149	Right-handed alpha
Helix 48	48	C	150	153	Right-handed 310
Helix 49	49	C	156	166	Right-handed alpha
Helix 50	50	C	171	202	Right-handed alpha
Helix 51	51	C	220	245	Right-handed alpha
Helix 52	52	C	252	257	Right-handed 310
Helix 53	53	C	271	273	Right-handed 310
Helix 54	54	C	274	284	Right-handed alpha
Helix 55	55	C	286	300	Right-handed alpha
Helix 56	56	C	301	308	Right-handed 310
Helix 57	57	C	318	340	Right-handed alpha
Helix 58	58	C	344	364	Right-handed alpha
Helix 59	59	C	364	377	Right-handed alpha
Helix 60	60	D	22	35	Right-handed alpha
Helix 61	61	D	48	52	Right-handed 310
Helix 62	62	D	57	66	Right-handed alpha
Helix 63	63	D	97	104	Right-handed alpha
Helix 64	64	D	123	133	Right-handed alpha
Helix 65	65	D	178	191	Right-handed alpha
Helix 66	66	D	197	232	Right-handed alpha
Helix 67	67	E	1	5	Right-handed 310
Helix 68	68	E	15	19	Right-handed 310
Helix 69	69	E	25	64	Right-handed alpha
Helix 70	70	E	65	70	Right-handed alpha
Helix 71	71	E	105	111	Right-handed alpha
Helix 72	72	E	123	127	Right-handed 310
Helix 73	73	F	12	25	Right-handed alpha
Helix 74	74	F	26	30	Right-handed 310
Helix 75	75	F	32	36	Right-handed 310
Helix 76	76	F	40	50	Right-handed alpha
Helix 77	77	F	51	72	Right-handed alpha
Helix 78	78	F	76	80	Right-handed 310
Helix 79	79	F	90	108	Right-handed alpha
Helix 80	80	G	32	68	Right-handed alpha
Helix 81	81	H	15	26	Right-handed alpha
Helix 82	82	H	27	45	Right-handed alpha
Helix 83	83	H	54	73	Right-handed alpha
Helix 84	84	J	4	13	Right-handed alpha
Helix 85	85	J	16	46	Right-handed alpha
Helix 86	86	J	51	56	Right-handed alpha
Helix 87	87	J	57	59	Right-handed 310
Helix 88	88	K	2	6	Right-handed 310
Helix 89	89	K	7	37	Right-handed alpha

There are 9 sheets in PDB entry 1SQP. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

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	15	18	first strand
Strand 2	A	24	29	anti-parallel
Strand 3	A	195	201	parallel
Strand 4	A	34	41	anti-parallel
Strand 5	A	95	102	anti-parallel
Strand 6	A	85	90	anti-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	279	281	first strand
Strand 2	A	306	314	anti-parallel
Strand 3	A	317	326	anti-parallel
Strand 4	A	251	259	anti-parallel
Strand 5	A	421	426	anti-parallel
Strand 6	A	239	245	parallel
Strand 7	G	11	18	anti-parallel
Strand 8	D	234	237	anti-parallel

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There are 8 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	25	28	first strand
Strand 2	B	34	38	anti-parallel
Strand 3	B	204	209	parallel
Strand 4	B	44	51	anti-parallel
Strand 5	B	105	112	anti-parallel
Strand 6	B	95	100	anti-parallel
Strand 7	I	13	16	anti-parallel
Strand 8	I	22	23	anti-parallel

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There are 5 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	242	247	first strand
Strand 2	B	422	428	parallel
Strand 3	B	252	260	anti-parallel
Strand 4	B	320	329	anti-parallel
Strand 5	B	307	315	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	C	22	24	first strand
Strand 2	C	217	219	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	D	69	72	first strand
Strand 2	D	81	84	anti-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	E	96	100	first strand
Strand 2	E	132	136	anti-parallel

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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	147	148	first strand
Strand 2	E	156	158	anti-parallel
Strand 3	E	163	165	anti-parallel
Strand 4	E	171	173	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	E	185	187	first strand
Strand 2	E	193	195	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: 1SQP

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