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

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 1SIW entry

There are 3 chains in PDB entry 1SIW (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	SER 1	GLU 1243
B	MET 1	THR 508
C	GLN 2	HIS 225

There are 99 helices in PDB entry 1SIW. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	1	6	Right-handed alpha
Helix 2	2	A	7	11	Right-handed 310
Helix 3	3	A	29	31	Right-handed 310
Helix 4	4	A	32	40	Right-handed alpha
Helix 5	5	A	92	97	Right-handed alpha
Helix 6	6	A	98	102	Right-handed 310
Helix 7	7	A	115	126	Right-handed alpha
Helix 8	8	A	130	140	Right-handed alpha
Helix 9	9	A	141	150	Right-handed alpha
Helix 10	10	A	161	180	Right-handed alpha
Helix 11	11	A	181	183	Right-handed 310
Helix 12	12	A	191	194	Right-handed 310
Helix 13	13	A	195	210	Right-handed alpha
Helix 14	14	A	225	232	Right-handed alpha
Helix 15	15	A	239	244	Right-handed alpha
Helix 16	16	A	255	260	Right-handed alpha
Helix 17	17	A	263	271	Right-handed alpha
Helix 18	18	A	272	274	Right-handed 310
Helix 19	19	A	285	290	Right-handed alpha
Helix 20	20	A	301	318	Right-handed alpha
Helix 21	21	A	323	334	Right-handed alpha
Helix 22	22	A	356	360	Right-handed 310
Helix 23	23	A	362	366	Right-handed 310
Helix 24	24	A	369	373	Right-handed 310
Helix 25	25	A	389	393	Right-handed 310
Helix 26	26	A	473	482	Right-handed alpha
Helix 27	27	A	503	512	Right-handed alpha
Helix 28	28	A	514	533	Right-handed alpha
Helix 29	29	A	541	546	Right-handed alpha
Helix 30	30	A	549	564	Right-handed alpha
Helix 31	31	A	585	594	Right-handed alpha
Helix 32	32	A	606	615	Right-handed alpha
Helix 33	33	A	616	621	Right-handed 310
Helix 34	34	A	625	629	Right-handed 310
Helix 35	35	A	634	638	Right-handed 310
Helix 36	36	A	641	652	Right-handed alpha
Helix 37	37	A	667	675	Right-handed alpha
Helix 38	38	A	678	689	Right-handed alpha
Helix 39	39	A	694	698	Right-handed 310
Helix 40	40	A	723	731	Right-handed alpha
Helix 41	41	A	776	781	Right-handed alpha
Helix 42	42	A	821	837	Right-handed alpha
Helix 43	43	A	856	860	Right-handed 310
Helix 44	44	A	868	872	Right-handed 310
Helix 45	45	A	894	900	Right-handed alpha
Helix 46	46	A	904	909	Right-handed alpha
Helix 47	47	A	920	932	Right-handed alpha
Helix 48	48	A	947	959	Right-handed alpha
Helix 49	49	A	963	979	Right-handed alpha
Helix 50	50	A	982	990	Right-handed 310
Helix 51	51	A	995	1002	Right-handed alpha
Helix 52	52	A	1025	1032	Right-handed alpha
Helix 53	53	A	1048	1054	Right-handed alpha
Helix 54	54	A	1104	1111	Right-handed alpha
Helix 55	55	A	1121	1128	Right-handed alpha
Helix 56	56	A	1183	1187	Right-handed 310
Helix 57	57	A	1193	1198	Right-handed 310
Helix 58	58	B	20	31	Right-handed alpha
Helix 59	59	B	58	63	Right-handed alpha
Helix 60	60	B	80	86	Right-handed alpha
Helix 61	61	B	96	101	Right-handed alpha
Helix 62	62	B	108	114	Right-handed alpha
Helix 63	63	B	145	149	Right-handed 310
Helix 64	64	B	151	156	Right-handed alpha
Helix 65	65	B	157	162	Right-handed 310
Helix 66	66	B	166	175	Right-handed 310
Helix 67	67	B	190	195	Right-handed alpha
Helix 68	68	B	222	227	Right-handed alpha
Helix 69	69	B	247	252	Right-handed alpha
Helix 70	70	B	257	262	Right-handed alpha
Helix 71	71	B	279	285	Right-handed alpha
Helix 72	72	B	288	290	Right-handed 310
Helix 73	73	B	291	298	Right-handed alpha
Helix 74	74	B	305	315	Right-handed alpha
Helix 75	75	B	318	327	Right-handed alpha
Helix 76	76	B	328	335	Right-handed alpha
Helix 77	77	B	344	348	Right-handed 310
Helix 78	78	B	379	383	Right-handed 310
Helix 79	79	B	386	395	Right-handed alpha
Helix 80	80	B	399	421	Right-handed alpha
Helix 81	81	B	427	433	Right-handed alpha
Helix 82	82	B	436	448	Right-handed alpha
Helix 83	83	B	451	455	Right-handed alpha
Helix 84	84	B	468	476	Right-handed alpha
Helix 85	85	C	1	11	Right-handed alpha
Helix 86	86	C	11	31	Right-handed alpha
Helix 87	87	C	32	35	Right-handed 310
Helix 88	88	C	40	44	Right-handed 310
Helix 89	89	C	47	71	Right-handed alpha
Helix 90	90	C	82	115	Right-handed alpha
Helix 91	91	C	115	122	Right-handed alpha
Helix 92	92	C	123	143	Right-handed alpha
Helix 93	93	C	143	148	Right-handed alpha
Helix 94	94	C	149	151	Right-handed 310
Helix 95	95	C	153	168	Right-handed alpha
Helix 96	96	C	172	178	Right-handed 310
Helix 97	97	C	181	198	Right-handed alpha
Helix 98	98	C	199	209	Right-handed 310
Helix 99	99	C	210	216	Right-handed 310

There are 17 sheets in PDB entry 1SIW. 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,

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	13	17	first strand
Strand 2	A	22	25	anti-parallel
Strand 3	C	219	222	parallel
Strand 4	B	201	204	parallel
Strand 5	B	210	212	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	43	47	first strand
Strand 2	A	59	64	anti-parallel
Strand 3	A	67	73	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	A	157	159	first strand
Strand 2	A	112	114	anti-parallel
Strand 3	A	784	787	anti-parallel
Strand 4	A	767	772	parallel
Strand 5	A	708	712	parallel
Strand 6	A	185	188	parallel
Strand 7	A	212	214	parallel
Strand 8	A	604	605	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	A	293	295	first strand
Strand 2	A	276	280	parallel
Strand 3	A	248	252	parallel
Strand 4	A	536	540	parallel
Strand 5	A	573	576	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	A	339	344	first strand
Strand 2	A	349	354	anti-parallel
Strand 3	A	425	432	parallel
Strand 4	A	450	461	anti-parallel
Strand 5	A	467	472	anti-parallel
Strand 6	A	339	344	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	A	376	377	first strand
Strand 2	A	383	384	anti-parallel

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There are 3 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	796	798	first strand
Strand 2	A	805	809	anti-parallel
Strand 3	A	1004	1005	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	A	843	850	first strand
Strand 2	A	884	891	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	A	911	913	first strand
Strand 2	A	916	918	anti-parallel

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There are 7 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	1084	1089	first strand
Strand 2	A	1158	1160	parallel
Strand 3	A	1116	1120	anti-parallel
Strand 4	A	1142	1151	parallel
Strand 5	A	1134	1139	anti-parallel
Strand 6	A	1221	1226	anti-parallel
Strand 7	A	1084	1089	anti-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	A	1229	1230	first strand
Strand 2	A	1240	1241	anti-parallel

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There are 5 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	300	301	first strand
Strand 2	B	268	276	anti-parallel
Strand 3	B	3	12	anti-parallel
Strand 4	B	353	356	parallel
Strand 5	B	341	342	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	300	301	first strand
Strand 2	B	268	276	anti-parallel
Strand 3	B	456	457	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	43	47	first strand
Strand 2	B	178	182	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	B	66	68	first strand
Strand 2	B	74	76	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	104	106	first strand
Strand 2	B	126	128	anti-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	B	232	234	first strand
Strand 2	B	241	243	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: 1SIW

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