Analysis of interatomic Contacts of Structural Units in PDB entry:
1A5U

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 1A5U entry

There are 8 chains in PDB entry 1A5U (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ILE 12	PRO 530
B	ILE 612	PRO 1130
C	ILE 1212	PRO 1730
D	ILE 1812	PRO 2330
E	ILE 3012	PRO 3530
F	ILE 3612	PRO 4130
G	ILE 4212	PRO 4730
H	ILE 4812	PRO 5330

There are175 helices in PDB entry 1A5U. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	19	21	Right-handed 310
Helix 2	2	A	25	31	Right-handed alpha
Helix 3	3	A	52	54	Right-handed 310
Helix 4	4	A	57	66	Right-handed alpha
Helix 5	5	A	80	97	Right-handed alpha
Helix 6	6	A	123	125	Right-handed 310
Helix 7	7	A	145	147	Right-handed 310
Helix 8	8	A	222	233	Right-handed alpha
Helix 9	9	A	247	257	Right-handed alpha
Helix 10	10	A	259	261	Right-handed 310
Helix 11	11	A	273	277	Right-handed alpha
Helix 12	12	A	279	285	Right-handed alpha
Helix 13	13	A	293	299	Right-handed alpha
Helix 14	14	A	302	319	Right-handed 310
Helix 15	15	A	331	334	Right-handed 310
Helix 16	16	A	341	353	Right-handed alpha
Helix 17	17	A	362	365	Right-handed alpha
Helix 18	18	A	370	386	Right-handed alpha
Helix 19	19	A	390	403	Right-handed alpha
Helix 20	20	A	407	422	Right-handed alpha
Helix 21	21	A	435	443	Right-handed alpha
Helix 22	22	A	456	464	Right-handed alpha
Helix 23	23	A	481	498	Right-handed alpha
Helix 24	24	B	617	621	Right-handed alpha
Helix 25	25	B	625	630	Right-handed alpha
Helix 26	26	B	657	666	Right-handed alpha
Helix 27	27	B	680	697	Right-handed alpha
Helix 28	28	B	723	725	Right-handed 310
Helix 29	29	B	745	747	Right-handed 310
Helix 30	30	B	763	766	Right-handed alpha
Helix 31	31	B	822	834	Right-handed alpha
Helix 32	32	B	847	857	Right-handed alpha
Helix 33	33	B	859	861	Right-handed 310
Helix 34	34	B	873	877	Right-handed alpha
Helix 35	35	B	879	885	Right-handed alpha
Helix 36	36	B	893	899	Right-handed alpha
Helix 37	37	B	905	919	Right-handed alpha
Helix 38	38	B	931	934	Right-handed 310
Helix 39	39	B	941	953	Right-handed alpha
Helix 40	40	B	962	965	Right-handed alpha
Helix 41	41	B	970	986	Right-handed alpha
Helix 42	42	B	990	1001	Right-handed alpha
Helix 43	43	B	1007	1021	Right-handed alpha
Helix 44	44	B	1035	1043	Right-handed alpha
Helix 45	45	B	1056	1064	Right-handed alpha
Helix 46	46	B	1081	1099	Right-handed alpha
Helix 47	47	C	1219	1221	Right-handed 310
Helix 48	48	C	1225	1231	Right-handed alpha
Helix 49	49	C	1252	1254	Right-handed 310
Helix 50	50	C	1257	1266	Right-handed alpha
Helix 51	51	C	1280	1297	Right-handed alpha
Helix 52	52	C	1323	1325	Right-handed 310
Helix 53	53	C	1345	1348	Right-handed alpha
Helix 54	54	C	1363	1366	Right-handed alpha
Helix 55	55	C	1422	1433	Right-handed alpha
Helix 56	56	C	1447	1457	Right-handed alpha
Helix 57	57	C	1473	1477	Right-handed alpha
Helix 58	58	C	1479	1485	Right-handed alpha
Helix 59	59	C	1493	1499	Right-handed alpha
Helix 60	60	C	1502	1519	Right-handed 310
Helix 61	61	C	1532	1534	Right-handed 310
Helix 62	62	C	1541	1553	Right-handed alpha
Helix 63	63	C	1562	1565	Right-handed alpha
Helix 64	64	C	1570	1587	Right-handed alpha
Helix 65	65	C	1590	1603	Right-handed alpha
Helix 66	66	C	1607	1621	Right-handed alpha
Helix 67	67	C	1635	1643	Right-handed alpha
Helix 68	68	C	1656	1664	Right-handed alpha
Helix 69	69	C	1681	1699	Right-handed alpha
Helix 70	70	D	1819	1821	Right-handed 310
Helix 71	71	D	1825	1831	Right-handed alpha
Helix 72	72	D	1857	1866	Right-handed alpha
Helix 73	73	D	1880	1897	Right-handed alpha
Helix 74	74	D	1945	1947	Right-handed 310
Helix 75	75	D	2022	2033	Right-handed alpha
Helix 76	76	D	2047	2057	Right-handed alpha
Helix 77	77	D	2059	2061	Right-handed 310
Helix 78	78	D	2073	2077	Right-handed alpha
Helix 79	79	D	2079	2085	Right-handed alpha
Helix 80	80	D	2093	2099	Right-handed alpha
Helix 81	81	D	2102	2119	Right-handed 310
Helix 82	82	D	2131	2134	Right-handed 310
Helix 83	83	D	2141	2153	Right-handed alpha
Helix 84	84	D	2162	2165	Right-handed alpha
Helix 85	85	D	2170	2186	Right-handed alpha
Helix 86	86	D	2190	2201	Right-handed alpha
Helix 87	87	D	2207	2221	Right-handed alpha
Helix 88	88	D	2235	2243	Right-handed alpha
Helix 89	89	D	2256	2264	Right-handed alpha
Helix 90	90	D	2281	2298	Right-handed alpha
Helix 91	91	E	3017	3021	Right-handed alpha
Helix 92	92	E	3025	3030	Right-handed alpha
Helix 93	93	E	3057	3066	Right-handed alpha
Helix 94	94	E	3080	3097	Right-handed alpha
Helix 95	95	E	3123	3125	Right-handed 310
Helix 96	96	E	3222	3234	Right-handed alpha
Helix 97	97	E	3247	3257	Right-handed alpha
Helix 98	98	E	3273	3277	Right-handed alpha
Helix 99	99	E	3279	3285	Right-handed alpha
Helix 100	100	E	3293	3299	Right-handed alpha
Helix 101	101	E	3305	3319	Right-handed alpha
Helix 102	102	E	3331	3334	Right-handed 310
Helix 103	103	E	3341	3353	Right-handed alpha
Helix 104	104	E	3362	3365	Right-handed alpha
Helix 105	105	E	3370	3386	Right-handed alpha
Helix 106	106	E	3390	3400	Right-handed alpha
Helix 107	107	E	3407	3421	Right-handed alpha
Helix 108	108	E	3435	3443	Right-handed alpha
Helix 109	109	E	3456	3464	Right-handed alpha
Helix 110	110	E	3481	3498	Right-handed alpha
Helix 111	111	F	3617	3621	Right-handed alpha
Helix 112	112	F	3625	3630	Right-handed alpha
Helix 113	113	F	3657	3665	Right-handed alpha
Helix 114	114	F	3680	3697	Right-handed alpha
Helix 115	115	F	3745	3747	Right-handed 310
Helix 116	116	F	3763	3766	Right-handed alpha
Helix 117	117	F	3822	3833	Right-handed alpha
Helix 118	118	F	3847	3857	Right-handed alpha
Helix 119	119	F	3873	3877	Right-handed alpha
Helix 120	120	F	3879	3885	Right-handed alpha
Helix 121	121	F	3893	3899	Right-handed alpha
Helix 122	122	F	3902	3919	Right-handed 310
Helix 123	123	F	3931	3934	Right-handed 310
Helix 124	124	F	3941	3953	Right-handed alpha
Helix 125	125	F	3962	3965	Right-handed alpha
Helix 126	126	F	3970	3987	Right-handed alpha
Helix 127	127	F	3990	4001	Right-handed alpha
Helix 128	128	F	4007	4021	Right-handed alpha
Helix 129	129	F	4035	4043	Right-handed alpha
Helix 130	130	F	4056	4064	Right-handed alpha
Helix 131	131	F	4081	4099	Right-handed alpha
Helix 132	132	G	4219	4221	Right-handed 310
Helix 133	133	G	4225	4231	Right-handed alpha
Helix 134	134	G	4257	4266	Right-handed alpha
Helix 135	135	G	4280	4297	Right-handed alpha
Helix 136	136	G	4323	4325	Right-handed 310
Helix 137	137	G	4345	4347	Right-handed 310
Helix 138	138	G	4363	4366	Right-handed alpha
Helix 139	139	G	4422	4433	Right-handed alpha
Helix 140	140	G	4447	4457	Right-handed alpha
Helix 141	141	G	4459	4461	Right-handed 310
Helix 142	142	G	4473	4477	Right-handed alpha
Helix 143	143	G	4479	4485	Right-handed alpha
Helix 144	144	G	4493	4499	Right-handed alpha
Helix 145	145	G	4502	4519	Right-handed 310
Helix 146	146	G	4531	4534	Right-handed 310
Helix 147	147	G	4541	4553	Right-handed alpha
Helix 148	148	G	4562	4565	Right-handed alpha
Helix 149	149	G	4570	4586	Right-handed alpha
Helix 150	150	G	4590	4600	Right-handed alpha
Helix 151	151	G	4607	4621	Right-handed alpha
Helix 152	152	G	4635	4643	Right-handed alpha
Helix 153	153	G	4656	4664	Right-handed alpha
Helix 154	154	G	4681	4698	Right-handed alpha
Helix 155	155	H	4819	4821	Right-handed 310
Helix 156	156	H	4825	4831	Right-handed alpha
Helix 157	157	H	4857	4866	Right-handed alpha
Helix 158	158	H	4880	4899	Right-handed alpha
Helix 159	159	H	4945	4947	Right-handed 310
Helix 160	160	H	4961	4966	Right-handed 310
Helix 161	161	H	5022	5033	Right-handed alpha
Helix 162	162	H	5047	5057	Right-handed alpha
Helix 163	163	H	5073	5077	Right-handed alpha
Helix 164	164	H	5079	5085	Right-handed alpha
Helix 165	165	H	5093	5099	Right-handed alpha
Helix 166	166	H	5102	5119	Right-handed 310
Helix 167	167	H	5131	5134	Right-handed 310
Helix 168	168	H	5141	5153	Right-handed alpha
Helix 169	169	H	5162	5165	Right-handed alpha
Helix 170	170	H	5170	5187	Right-handed alpha
Helix 171	171	H	5190	5200	Right-handed alpha
Helix 172	172	H	5207	5221	Right-handed alpha
Helix 173	173	H	5235	5243	Right-handed alpha
Helix 174	174	H	5256	5264	Right-handed alpha
Helix 175	175	H	5281	5299	Right-handed alpha

There are 31 sheets in PDB entry 1A5U. 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, Y, Z, AA, AB, AC, AD, AE,

There are 8 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	357	360	first strand
Strand 2	A	45	49	parallel
Strand 3	A	70	74	parallel
Strand 4	A	108	112	parallel
Strand 5	A	238	241	parallel
Strand 6	A	265	270	parallel
Strand 7	A	288	292	parallel
Strand 8	A	322	326	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	155	157	first strand
Strand 2	A	138	142	parallel
Strand 3	A	191	196	anti-parallel
Strand 4	A	180	187	anti-parallel
Strand 5	A	172	175	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	523	528	first strand
Strand 2	A	507	512	anti-parallel
Strand 3	A	426	430	parallel
Strand 4	A	448	453	parallel
Strand 5	A	468	472	parallel

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There are 8 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	957	960	first strand
Strand 2	B	645	649	parallel
Strand 3	B	670	674	parallel
Strand 4	B	708	712	parallel
Strand 5	B	838	841	parallel
Strand 6	B	865	870	parallel
Strand 7	B	888	892	parallel
Strand 8	B	922	926	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	731	733	first strand
Strand 2	B	800	802	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	755	757	first strand
Strand 2	B	738	742	parallel
Strand 3	B	791	798	anti-parallel
Strand 4	B	780	784	anti-parallel
Strand 5	B	772	775	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	1123	1128	first strand
Strand 2	B	1107	1112	anti-parallel
Strand 3	B	1026	1030	parallel
Strand 4	B	1048	1053	parallel
Strand 5	B	1068	1072	parallel

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There are 8 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	1557	1560	first strand
Strand 2	C	1245	1249	parallel
Strand 3	C	1270	1274	parallel
Strand 4	C	1308	1312	parallel
Strand 5	C	1438	1441	parallel
Strand 6	C	1465	1470	parallel
Strand 7	C	1488	1492	parallel
Strand 8	C	1522	1526	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	1331	1333	first strand
Strand 2	C	1400	1402	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	1355	1357	first strand
Strand 2	C	1338	1342	parallel
Strand 3	C	1391	1396	anti-parallel
Strand 4	C	1380	1387	anti-parallel
Strand 5	C	1372	1375	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	1723	1728	first strand
Strand 2	C	1707	1712	anti-parallel
Strand 3	C	1626	1630	parallel
Strand 4	C	1648	1653	parallel
Strand 5	C	1668	1672	parallel

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There are 8 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	2157	2160	first strand
Strand 2	D	1845	1849	parallel
Strand 3	D	1870	1874	parallel
Strand 4	D	1908	1912	parallel
Strand 5	D	2038	2041	parallel
Strand 6	D	2065	2070	parallel
Strand 7	D	2088	2092	parallel
Strand 8	D	2123	2126	parallel

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There are 2 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	1931	1933	first strand
Strand 2	D	2000	2002	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	1955	1957	first strand
Strand 2	D	1938	1942	parallel
Strand 3	D	1991	1996	anti-parallel
Strand 4	D	1980	1987	anti-parallel
Strand 5	D	1972	1975	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	2323	2328	first strand
Strand 2	D	2307	2312	anti-parallel
Strand 3	D	2226	2230	parallel
Strand 4	D	2248	2253	parallel
Strand 5	D	2268	2272	parallel

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There are 8 strands in P sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	3357	3360	first strand
Strand 2	E	3045	3049	parallel
Strand 3	E	3070	3074	parallel
Strand 4	E	3108	3112	parallel
Strand 5	E	3238	3241	parallel
Strand 6	E	3265	3270	parallel
Strand 7	E	3288	3292	parallel
Strand 8	E	3322	3326	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	E	3130	3133	first strand
Strand 2	E	3200	3203	anti-parallel

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There are 5 strands in R sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	3155	3157	first strand
Strand 2	E	3138	3142	parallel
Strand 3	E	3191	3196	anti-parallel
Strand 4	E	3180	3187	anti-parallel
Strand 5	E	3172	3175	anti-parallel

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There are 5 strands in S sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	3523	3528	first strand
Strand 2	E	3507	3512	anti-parallel
Strand 3	E	3426	3430	parallel
Strand 4	E	3448	3453	parallel
Strand 5	E	3468	3472	parallel

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There are 8 strands in T sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	3957	3960	first strand
Strand 2	F	3645	3649	parallel
Strand 3	F	3670	3674	parallel
Strand 4	F	3708	3712	parallel
Strand 5	F	3838	3841	parallel
Strand 6	F	3865	3869	parallel
Strand 7	F	3888	3892	parallel
Strand 8	F	3922	3926	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	F	3731	3733	first strand
Strand 2	F	3800	3802	anti-parallel

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There are 5 strands in V sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	3755	3757	first strand
Strand 2	F	3738	3742	parallel
Strand 3	F	3791	3798	anti-parallel
Strand 4	F	3780	3784	anti-parallel
Strand 5	F	3772	3775	anti-parallel

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There are 5 strands in W sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	4123	4128	first strand
Strand 2	F	4107	4112	anti-parallel
Strand 3	F	4026	4030	parallel
Strand 4	F	4048	4053	parallel
Strand 5	F	4068	4072	parallel

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There are 8 strands in X sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	4557	4560	first strand
Strand 2	G	4245	4249	parallel
Strand 3	G	4270	4274	parallel
Strand 4	G	4308	4312	parallel
Strand 5	G	4438	4441	parallel
Strand 6	G	4465	4470	parallel
Strand 7	G	4488	4492	parallel
Strand 8	G	4522	4526	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	4330	4333	first strand
Strand 2	G	4400	4403	anti-parallel

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There are 5 strands in Z sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	4355	4357	first strand
Strand 2	G	4337	4342	parallel
Strand 3	G	4391	4396	anti-parallel
Strand 4	G	4380	4387	anti-parallel
Strand 5	G	4372	4375	anti-parallel

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There are 5 strands in AA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	4723	4728	first strand
Strand 2	G	4707	4712	anti-parallel
Strand 3	G	4626	4630	parallel
Strand 4	G	4648	4653	parallel
Strand 5	G	4668	4672	parallel

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There are 8 strands in AB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	5157	5160	first strand
Strand 2	H	4845	4849	parallel
Strand 3	H	4870	4874	parallel
Strand 4	H	4908	4912	parallel
Strand 5	H	5038	5041	parallel
Strand 6	H	5065	5069	parallel
Strand 7	H	5088	5092	parallel
Strand 8	H	5122	5126	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	4931	4933	first strand
Strand 2	H	5000	5002	anti-parallel

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There are 5 strands in AD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	4955	4957	first strand
Strand 2	H	4938	4942	parallel
Strand 3	H	4991	4998	anti-parallel
Strand 4	H	4980	4984	anti-parallel
Strand 5	H	4972	4975	anti-parallel

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There are 5 strands in AE sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	5323	5328	first strand
Strand 2	H	5307	5312	anti-parallel
Strand 3	H	5226	5230	parallel
Strand 4	H	5248	5253	parallel
Strand 5	H	5268	5272	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: 1A5U

Analysis of interatomic Contacts of Structural Units in PDB entry:
1A5U