Analysis of interatomic Contacts of Structural Units in PDB entry:
2IOP

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 2IOP entry

There are 4 chains in PDB entry 2IOP (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 1	SER 624
B	MET 1	SER 624
C	MET 1	SER 624
D	MET 1	SER 624

There are119 helices in PDB entry 2IOP. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	10	24	Right-handed alpha
Helix 2	2	A	25	28	Right-handed 310
Helix 3	3	A	29	50	Right-handed alpha
Helix 4	4	A	53	58	Right-handed 310
Helix 5	5	A	86	93	Right-handed alpha
Helix 6	6	A	98	109	Right-handed alpha
Helix 7	7	A	111	116	Right-handed alpha
Helix 8	8	A	117	121	Right-handed 310
Helix 9	9	A	126	132	Right-handed 310
Helix 10	10	A	147	150	Right-handed 310
Helix 11	11	A	184	188	Right-handed 310
Helix 12	12	A	189	201	Right-handed alpha
Helix 13	13	A	242	253	Right-handed alpha
Helix 14	14	A	286	290	Right-handed 310
Helix 15	15	A	315	319	Right-handed 310
Helix 16	16	A	335	340	Right-handed alpha
Helix 17	17	A	343	367	Right-handed alpha
Helix 18	18	A	367	383	Right-handed alpha
Helix 19	19	A	384	389	Right-handed alpha
Helix 20	20	A	392	400	Right-handed alpha
Helix 21	21	A	415	422	Right-handed alpha
Helix 22	22	A	437	443	Right-handed alpha
Helix 23	23	A	444	446	Right-handed 310
Helix 24	24	A	447	454	Right-handed alpha
Helix 25	25	A	464	469	Right-handed alpha
Helix 26	26	A	509	520	Right-handed alpha
Helix 27	27	A	547	557	Right-handed alpha
Helix 28	28	A	574	583	Right-handed alpha
Helix 29	29	A	585	605	Right-handed alpha
Helix 30	30	A	610	624	Right-handed alpha
Helix 31	31	B	10	24	Right-handed alpha
Helix 32	32	B	25	28	Right-handed 310
Helix 33	33	B	29	50	Right-handed alpha
Helix 34	34	B	53	58	Right-handed 310
Helix 35	35	B	86	93	Right-handed alpha
Helix 36	36	B	98	109	Right-handed alpha
Helix 37	37	B	111	116	Right-handed alpha
Helix 38	38	B	126	132	Right-handed 310
Helix 39	39	B	147	150	Right-handed 310
Helix 40	40	B	184	188	Right-handed 310
Helix 41	41	B	189	201	Right-handed alpha
Helix 42	42	B	242	253	Right-handed alpha
Helix 43	43	B	286	290	Right-handed 310
Helix 44	44	B	315	319	Right-handed 310
Helix 45	45	B	335	340	Right-handed alpha
Helix 46	46	B	343	367	Right-handed alpha
Helix 47	47	B	367	383	Right-handed alpha
Helix 48	48	B	384	388	Right-handed 310
Helix 49	49	B	389	391	Right-handed 310
Helix 50	50	B	392	400	Right-handed alpha
Helix 51	51	B	415	422	Right-handed alpha
Helix 52	52	B	437	443	Right-handed alpha
Helix 53	53	B	444	446	Right-handed 310
Helix 54	54	B	447	454	Right-handed alpha
Helix 55	55	B	464	469	Right-handed alpha
Helix 56	56	B	508	520	Right-handed alpha
Helix 57	57	B	547	557	Right-handed alpha
Helix 58	58	B	574	583	Right-handed alpha
Helix 59	59	B	585	605	Right-handed alpha
Helix 60	60	B	610	624	Right-handed alpha
Helix 61	61	C	10	24	Right-handed alpha
Helix 62	62	C	25	28	Right-handed 310
Helix 63	63	C	29	50	Right-handed alpha
Helix 64	64	C	53	58	Right-handed 310
Helix 65	65	C	86	93	Right-handed alpha
Helix 66	66	C	98	108	Right-handed alpha
Helix 67	67	C	111	117	Right-handed alpha
Helix 68	68	C	126	132	Right-handed 310
Helix 69	69	C	147	150	Right-handed 310
Helix 70	70	C	184	188	Right-handed 310
Helix 71	71	C	189	201	Right-handed alpha
Helix 72	72	C	242	253	Right-handed alpha
Helix 73	73	C	286	290	Right-handed 310
Helix 74	74	C	315	319	Right-handed 310
Helix 75	75	C	335	340	Right-handed alpha
Helix 76	76	C	343	367	Right-handed alpha
Helix 77	77	C	367	383	Right-handed alpha
Helix 78	78	C	384	388	Right-handed 310
Helix 79	79	C	389	391	Right-handed 310
Helix 80	80	C	392	400	Right-handed alpha
Helix 81	81	C	415	422	Right-handed alpha
Helix 82	82	C	437	443	Right-handed alpha
Helix 83	83	C	444	446	Right-handed 310
Helix 84	84	C	447	454	Right-handed alpha
Helix 85	85	C	464	469	Right-handed alpha
Helix 86	86	C	509	520	Right-handed alpha
Helix 87	87	C	547	557	Right-handed alpha
Helix 88	88	C	574	583	Right-handed alpha
Helix 89	89	C	585	605	Right-handed alpha
Helix 90	90	C	610	624	Right-handed alpha
Helix 91	91	D	10	24	Right-handed alpha
Helix 92	92	D	25	28	Right-handed 310
Helix 93	93	D	29	51	Right-handed alpha
Helix 94	94	D	53	58	Right-handed 310
Helix 95	95	D	86	93	Right-handed alpha
Helix 96	96	D	98	109	Right-handed alpha
Helix 97	97	D	113	117	Right-handed 310
Helix 98	98	D	126	132	Right-handed 310
Helix 99	99	D	147	150	Right-handed 310
Helix 100	100	D	184	188	Right-handed 310
Helix 101	101	D	189	201	Right-handed alpha
Helix 102	102	D	242	253	Right-handed alpha
Helix 103	103	D	286	290	Right-handed 310
Helix 104	104	D	315	319	Right-handed 310
Helix 105	105	D	335	342	Right-handed alpha
Helix 106	106	D	343	367	Right-handed alpha
Helix 107	107	D	367	383	Right-handed alpha
Helix 108	108	D	384	389	Right-handed alpha
Helix 109	109	D	392	400	Right-handed alpha
Helix 110	110	D	415	422	Right-handed alpha
Helix 111	111	D	437	443	Right-handed alpha
Helix 112	112	D	444	446	Right-handed 310
Helix 113	113	D	447	454	Right-handed alpha
Helix 114	114	D	464	469	Right-handed alpha
Helix 115	115	D	511	520	Right-handed alpha
Helix 116	116	D	547	557	Right-handed alpha
Helix 117	117	D	574	583	Right-handed alpha
Helix 118	118	D	585	605	Right-handed alpha
Helix 119	119	D	610	624	Right-handed alpha

There are 16 sheets in PDB entry 2IOP. 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 9 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	6	8	first strand
Strand 2	A	161	167	anti-parallel
Strand 3	A	151	156	anti-parallel
Strand 4	A	134	142	anti-parallel
Strand 5	A	173	180	anti-parallel
Strand 6	A	75	80	anti-parallel
Strand 7	A	65	70	anti-parallel
Strand 8	A	208	216	parallel
Strand 9	A	219	226	anti-parallel

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There are 5 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	262	268	first strand
Strand 2	A	273	280	anti-parallel
Strand 3	A	322	328	anti-parallel
Strand 4	A	298	301	parallel
Strand 5	A	305	307	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	A	403	404	first strand
Strand 2	A	457	460	anti-parallel
Strand 3	A	430	434	parallel
Strand 4	A	478	482	parallel
Strand 5	A	474	475	anti-parallel

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There are 3 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	525	528	first strand
Strand 2	A	567	570	parallel
Strand 3	A	537	540	anti-parallel

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There are 9 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	2	8	first strand
Strand 2	B	161	167	anti-parallel
Strand 3	B	151	156	anti-parallel
Strand 4	B	134	142	anti-parallel
Strand 5	B	173	180	anti-parallel
Strand 6	B	75	80	anti-parallel
Strand 7	B	65	70	anti-parallel
Strand 8	B	208	216	parallel
Strand 9	B	219	226	anti-parallel

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There are 5 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	262	268	first strand
Strand 2	B	273	280	anti-parallel
Strand 3	B	322	328	anti-parallel
Strand 4	B	298	301	parallel
Strand 5	B	305	307	anti-parallel

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There are 5 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	403	404	first strand
Strand 2	B	457	460	anti-parallel
Strand 3	B	430	434	parallel
Strand 4	B	478	482	parallel
Strand 5	B	474	475	anti-parallel

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There are 3 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	525	528	first strand
Strand 2	B	567	570	parallel
Strand 3	B	537	540	anti-parallel

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There are 9 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	2	8	first strand
Strand 2	C	161	167	anti-parallel
Strand 3	C	151	156	anti-parallel
Strand 4	C	134	142	anti-parallel
Strand 5	C	173	180	anti-parallel
Strand 6	C	75	80	anti-parallel
Strand 7	C	65	70	anti-parallel
Strand 8	C	208	210	parallel
Strand 9	C	225	226	anti-parallel

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There are 5 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	262	268	first strand
Strand 2	C	273	280	anti-parallel
Strand 3	C	322	328	anti-parallel
Strand 4	C	298	301	parallel
Strand 5	C	305	307	anti-parallel

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There are 5 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	403	404	first strand
Strand 2	C	457	460	anti-parallel
Strand 3	C	430	434	parallel
Strand 4	C	478	482	parallel
Strand 5	C	474	475	anti-parallel

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There are 3 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	525	528	first strand
Strand 2	C	567	570	parallel
Strand 3	C	537	540	anti-parallel

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There are 9 strands in M sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	2	7	first strand
Strand 2	D	162	167	anti-parallel
Strand 3	D	151	156	anti-parallel
Strand 4	D	134	142	anti-parallel
Strand 5	D	173	180	anti-parallel
Strand 6	D	75	80	anti-parallel
Strand 7	D	65	70	anti-parallel
Strand 8	D	208	212	parallel
Strand 9	D	223	226	anti-parallel

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There are 5 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	262	268	first strand
Strand 2	D	274	280	anti-parallel
Strand 3	D	322	327	anti-parallel
Strand 4	D	297	301	parallel
Strand 5	D	305	310	anti-parallel

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There are 5 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	403	404	first strand
Strand 2	D	457	460	anti-parallel
Strand 3	D	430	434	parallel
Strand 4	D	478	482	parallel
Strand 5	D	474	475	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	D	525	528	first strand
Strand 2	D	567	570	parallel
Strand 3	D	537	540	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: 2IOP

Analysis of interatomic Contacts of Structural Units in PDB entry:
2IOP