Analysis of interatomic Contacts of Structural Units in PDB entry:
4QSH

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 4QSH entry

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

Chain ID	Initial residue	Terminal residue
A	HIS -1	ARG 1145
B	MET 0	ARG 1145
C	HIS -1	ARG 1145
D	MET 0	ARG 1145

There are187 helices in PDB entry 4QSH. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	12	26	Right-handed alpha
Helix 2	2	A	35	39	Right-handed 310
Helix 3	3	A	41	46	Right-handed 310
Helix 4	4	A	58	63	Right-handed alpha
Helix 5	5	A	65	77	Right-handed alpha
Helix 6	6	A	91	101	Right-handed alpha
Helix 7	7	A	109	116	Right-handed alpha
Helix 8	8	A	118	130	Right-handed alpha
Helix 9	9	A	251	269	Right-handed alpha
Helix 10	10	A	298	307	Right-handed alpha
Helix 11	11	A	309	319	Right-handed alpha
Helix 12	12	A	332	336	Right-handed 310
Helix 13	13	A	351	355	Right-handed 310
Helix 14	14	A	404	419	Right-handed alpha
Helix 15	15	A	427	437	Right-handed alpha
Helix 16	16	A	437	443	Right-handed alpha
Helix 17	17	A	453	458	Right-handed 310
Helix 18	18	A	464	480	Right-handed alpha
Helix 19	19	A	509	529	Right-handed alpha
Helix 20	20	A	540	547	Right-handed alpha
Helix 21	21	A	552	567	Right-handed alpha
Helix 22	22	A	579	589	Right-handed alpha
Helix 23	23	A	591	603	Right-handed alpha
Helix 24	24	A	624	639	Right-handed alpha
Helix 25	25	A	651	654	Right-handed 310
Helix 26	26	A	655	665	Right-handed alpha
Helix 27	27	A	688	702	Right-handed alpha
Helix 28	28	A	717	732	Right-handed alpha
Helix 29	29	A	746	757	Right-handed alpha
Helix 30	30	A	766	770	Right-handed 310
Helix 31	31	A	777	786	Right-handed alpha
Helix 32	32	A	795	810	Right-handed alpha
Helix 33	33	A	811	817	Right-handed 310
Helix 34	34	A	826	831	Right-handed alpha
Helix 35	35	A	833	847	Right-handed alpha
Helix 36	36	A	849	851	Right-handed 310
Helix 37	37	A	852	867	Right-handed alpha
Helix 38	38	A	875	890	Right-handed alpha
Helix 39	39	A	893	901	Right-handed alpha
Helix 40	40	A	902	904	Right-handed 310
Helix 41	41	A	907	915	Right-handed alpha
Helix 42	42	A	926	935	Right-handed alpha
Helix 43	43	A	952	965	Right-handed alpha
Helix 44	44	A	969	979	Right-handed alpha
Helix 45	45	A	979	994	Right-handed alpha
Helix 46	46	A	995	999	Right-handed 310
Helix 47	47	A	1000	1007	Right-handed alpha
Helix 48	48	B	12	26	Right-handed alpha
Helix 49	49	B	35	39	Right-handed 310
Helix 50	50	B	41	46	Right-handed 310
Helix 51	51	B	58	63	Right-handed alpha
Helix 52	52	B	65	77	Right-handed alpha
Helix 53	53	B	91	101	Right-handed alpha
Helix 54	54	B	109	116	Right-handed alpha
Helix 55	55	B	118	130	Right-handed alpha
Helix 56	56	B	251	269	Right-handed alpha
Helix 57	57	B	298	307	Right-handed alpha
Helix 58	58	B	309	319	Right-handed alpha
Helix 59	59	B	332	336	Right-handed 310
Helix 60	60	B	351	355	Right-handed 310
Helix 61	61	B	404	419	Right-handed alpha
Helix 62	62	B	427	437	Right-handed alpha
Helix 63	63	B	437	443	Right-handed alpha
Helix 64	64	B	453	458	Right-handed 310
Helix 65	65	B	464	480	Right-handed alpha
Helix 66	66	B	509	529	Right-handed alpha
Helix 67	67	B	540	547	Right-handed alpha
Helix 68	68	B	552	567	Right-handed alpha
Helix 69	69	B	579	588	Right-handed alpha
Helix 70	70	B	591	603	Right-handed alpha
Helix 71	71	B	624	639	Right-handed alpha
Helix 72	72	B	651	654	Right-handed 310
Helix 73	73	B	655	665	Right-handed alpha
Helix 74	74	B	688	702	Right-handed alpha
Helix 75	75	B	717	732	Right-handed alpha
Helix 76	76	B	746	757	Right-handed alpha
Helix 77	77	B	766	770	Right-handed 310
Helix 78	78	B	777	786	Right-handed alpha
Helix 79	79	B	795	810	Right-handed alpha
Helix 80	80	B	811	817	Right-handed 310
Helix 81	81	B	826	831	Right-handed alpha
Helix 82	82	B	833	847	Right-handed alpha
Helix 83	83	B	849	851	Right-handed 310
Helix 84	84	B	852	867	Right-handed alpha
Helix 85	85	B	875	890	Right-handed alpha
Helix 86	86	B	893	901	Right-handed alpha
Helix 87	87	B	902	904	Right-handed 310
Helix 88	88	B	907	915	Right-handed alpha
Helix 89	89	B	926	935	Right-handed alpha
Helix 90	90	B	952	965	Right-handed alpha
Helix 91	91	B	969	979	Right-handed alpha
Helix 92	92	B	979	994	Right-handed alpha
Helix 93	93	B	995	999	Right-handed 310
Helix 94	94	B	1000	1007	Right-handed alpha
Helix 95	95	C	12	26	Right-handed alpha
Helix 96	96	C	35	39	Right-handed 310
Helix 97	97	C	41	46	Right-handed 310
Helix 98	98	C	58	63	Right-handed alpha
Helix 99	99	C	65	77	Right-handed alpha
Helix 100	100	C	91	102	Right-handed alpha
Helix 101	101	C	109	116	Right-handed alpha
Helix 102	102	C	118	130	Right-handed alpha
Helix 103	103	C	251	269	Right-handed alpha
Helix 104	104	C	298	307	Right-handed alpha
Helix 105	105	C	309	319	Right-handed alpha
Helix 106	106	C	332	336	Right-handed 310
Helix 107	107	C	351	355	Right-handed 310
Helix 108	108	C	404	419	Right-handed alpha
Helix 109	109	C	427	437	Right-handed alpha
Helix 110	110	C	437	443	Right-handed alpha
Helix 111	111	C	453	458	Right-handed 310
Helix 112	112	C	464	480	Right-handed alpha
Helix 113	113	C	509	529	Right-handed alpha
Helix 114	114	C	540	547	Right-handed alpha
Helix 115	115	C	552	567	Right-handed alpha
Helix 116	116	C	579	588	Right-handed alpha
Helix 117	117	C	591	603	Right-handed alpha
Helix 118	118	C	624	639	Right-handed alpha
Helix 119	119	C	651	654	Right-handed 310
Helix 120	120	C	655	665	Right-handed alpha
Helix 121	121	C	688	702	Right-handed alpha
Helix 122	122	C	717	732	Right-handed alpha
Helix 123	123	C	746	757	Right-handed alpha
Helix 124	124	C	766	770	Right-handed 310
Helix 125	125	C	777	786	Right-handed alpha
Helix 126	126	C	795	811	Right-handed alpha
Helix 127	127	C	812	817	Right-handed 310
Helix 128	128	C	826	831	Right-handed alpha
Helix 129	129	C	833	847	Right-handed alpha
Helix 130	130	C	849	851	Right-handed 310
Helix 131	131	C	852	867	Right-handed alpha
Helix 132	132	C	875	890	Right-handed alpha
Helix 133	133	C	893	901	Right-handed alpha
Helix 134	134	C	902	904	Right-handed 310
Helix 135	135	C	907	915	Right-handed alpha
Helix 136	136	C	926	935	Right-handed alpha
Helix 137	137	C	952	965	Right-handed alpha
Helix 138	138	C	969	979	Right-handed alpha
Helix 139	139	C	979	994	Right-handed alpha
Helix 140	140	C	995	999	Right-handed 310
Helix 141	141	C	1000	1007	Right-handed alpha
Helix 142	142	D	12	26	Right-handed alpha
Helix 143	143	D	35	39	Right-handed 310
Helix 144	144	D	41	46	Right-handed 310
Helix 145	145	D	58	63	Right-handed alpha
Helix 146	146	D	65	77	Right-handed alpha
Helix 147	147	D	91	101	Right-handed alpha
Helix 148	148	D	109	116	Right-handed alpha
Helix 149	149	D	118	129	Right-handed alpha
Helix 150	150	D	251	269	Right-handed alpha
Helix 151	151	D	298	307	Right-handed alpha
Helix 152	152	D	309	319	Right-handed alpha
Helix 153	153	D	332	336	Right-handed 310
Helix 154	154	D	351	355	Right-handed 310
Helix 155	155	D	404	419	Right-handed alpha
Helix 156	156	D	427	437	Right-handed alpha
Helix 157	157	D	437	443	Right-handed alpha
Helix 158	158	D	453	458	Right-handed 310
Helix 159	159	D	464	480	Right-handed alpha
Helix 160	160	D	509	529	Right-handed alpha
Helix 161	161	D	540	547	Right-handed alpha
Helix 162	162	D	552	567	Right-handed alpha
Helix 163	163	D	579	588	Right-handed alpha
Helix 164	164	D	591	603	Right-handed alpha
Helix 165	165	D	624	639	Right-handed alpha
Helix 166	166	D	651	665	Right-handed alpha
Helix 167	167	D	688	702	Right-handed alpha
Helix 168	168	D	717	732	Right-handed alpha
Helix 169	169	D	746	757	Right-handed alpha
Helix 170	170	D	766	770	Right-handed 310
Helix 171	171	D	777	786	Right-handed alpha
Helix 172	172	D	795	811	Right-handed alpha
Helix 173	173	D	812	817	Right-handed 310
Helix 174	174	D	826	831	Right-handed alpha
Helix 175	175	D	833	847	Right-handed alpha
Helix 176	176	D	849	851	Right-handed 310
Helix 177	177	D	852	867	Right-handed alpha
Helix 178	178	D	875	890	Right-handed alpha
Helix 179	179	D	893	901	Right-handed alpha
Helix 180	180	D	902	904	Right-handed 310
Helix 181	181	D	907	915	Right-handed alpha
Helix 182	182	D	926	935	Right-handed alpha
Helix 183	183	D	952	965	Right-handed alpha
Helix 184	184	D	969	979	Right-handed alpha
Helix 185	185	D	979	994	Right-handed alpha
Helix 186	186	D	995	999	Right-handed 310
Helix 187	187	D	1000	1007	Right-handed alpha

There are 32 sheets in PDB entry 4QSH. 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, AF,

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	49	52	first strand
Strand 2	A	29	34	parallel
Strand 3	A	6	9	parallel
Strand 4	A	80	82	parallel
Strand 5	A	104	105	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	285	292	first strand
Strand 2	A	273	282	anti-parallel
Strand 3	A	210	218	anti-parallel
Strand 4	A	224	236	anti-parallel
Strand 5	A	239	245	anti-parallel
Strand 6	A	341	347	anti-parallel
Strand 7	A	396	402	anti-parallel
Strand 8	A	374	378	anti-parallel

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There are 2 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	361	362	first strand
Strand 2	A	386	387	anti-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	365	367	first strand
Strand 2	A	420	422	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	A	533	536	first strand
Strand 2	A	572	577	parallel
Strand 3	A	607	613	parallel
Strand 4	A	642	646	parallel
Strand 5	A	668	674	parallel
Strand 6	A	706	711	parallel
Strand 7	A	736	740	parallel
Strand 8	A	761	764	parallel
Strand 9	A	533	536	parallel

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There are 4 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	1013	1019	first strand
Strand 2	A	1022	1031	anti-parallel
Strand 3	A	1039	1046	anti-parallel
Strand 4	A	1049	1056	anti-parallel

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There are 4 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	1077	1079	first strand
Strand 2	A	1139	1144	anti-parallel
Strand 3	A	1121	1126	anti-parallel
Strand 4	A	1096	1097	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	A	1113	1116	first strand
Strand 2	A	1102	1107	anti-parallel
Strand 3	A	1084	1089	anti-parallel
Strand 4	A	1133	1134	anti-parallel

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There are 5 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	49	52	first strand
Strand 2	B	29	34	parallel
Strand 3	B	6	9	parallel
Strand 4	B	80	82	parallel
Strand 5	B	104	105	parallel

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There are 8 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	285	292	first strand
Strand 2	B	273	282	anti-parallel
Strand 3	B	210	218	anti-parallel
Strand 4	B	224	236	anti-parallel
Strand 5	B	239	245	anti-parallel
Strand 6	B	341	347	anti-parallel
Strand 7	B	396	402	anti-parallel
Strand 8	B	374	378	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	B	361	362	first strand
Strand 2	B	386	387	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	365	367	first strand
Strand 2	B	420	422	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	B	533	536	first strand
Strand 2	B	572	577	parallel
Strand 3	B	607	613	parallel
Strand 4	B	642	646	parallel
Strand 5	B	668	674	parallel
Strand 6	B	706	710	parallel
Strand 7	B	736	739	parallel
Strand 8	B	761	764	parallel
Strand 9	B	533	536	parallel

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There are 4 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	1013	1019	first strand
Strand 2	B	1022	1031	anti-parallel
Strand 3	B	1039	1046	anti-parallel
Strand 4	B	1049	1056	anti-parallel

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There are 4 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	1077	1079	first strand
Strand 2	B	1139	1144	anti-parallel
Strand 3	B	1121	1126	anti-parallel
Strand 4	B	1096	1097	anti-parallel

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There are 4 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	1113	1116	first strand
Strand 2	B	1102	1107	anti-parallel
Strand 3	B	1084	1089	anti-parallel
Strand 4	B	1133	1134	anti-parallel

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There are 5 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	49	52	first strand
Strand 2	C	29	34	parallel
Strand 3	C	6	9	parallel
Strand 4	C	80	82	parallel
Strand 5	C	104	105	parallel

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There are 8 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	285	292	first strand
Strand 2	C	273	282	anti-parallel
Strand 3	C	210	218	anti-parallel
Strand 4	C	224	236	anti-parallel
Strand 5	C	239	245	anti-parallel
Strand 6	C	341	347	anti-parallel
Strand 7	C	396	402	anti-parallel
Strand 8	C	374	378	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	361	362	first strand
Strand 2	C	386	387	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	C	365	367	first strand
Strand 2	C	420	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	533	536	first strand
Strand 2	C	572	577	parallel
Strand 3	C	607	613	parallel
Strand 4	C	642	646	parallel
Strand 5	C	668	674	parallel
Strand 6	C	706	710	parallel
Strand 7	C	736	739	parallel
Strand 8	C	761	764	parallel
Strand 9	C	533	536	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	1013	1019	first strand
Strand 2	C	1022	1031	anti-parallel
Strand 3	C	1039	1046	anti-parallel
Strand 4	C	1049	1056	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	1077	1079	first strand
Strand 2	C	1139	1144	anti-parallel
Strand 3	C	1121	1126	anti-parallel
Strand 4	C	1096	1097	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	1113	1116	first strand
Strand 2	C	1102	1107	anti-parallel
Strand 3	C	1084	1089	anti-parallel
Strand 4	C	1133	1134	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	49	52	first strand
Strand 2	D	29	34	parallel
Strand 3	D	6	9	parallel
Strand 4	D	80	82	parallel
Strand 5	D	104	105	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	285	292	first strand
Strand 2	D	273	282	anti-parallel
Strand 3	D	210	218	anti-parallel
Strand 4	D	224	236	anti-parallel
Strand 5	D	239	245	anti-parallel
Strand 6	D	341	347	anti-parallel
Strand 7	D	396	402	anti-parallel
Strand 8	D	374	378	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	361	362	first strand
Strand 2	D	386	387	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	365	367	first strand
Strand 2	D	420	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	533	536	first strand
Strand 2	D	572	577	parallel
Strand 3	D	607	613	parallel
Strand 4	D	642	646	parallel
Strand 5	D	668	674	parallel
Strand 6	D	706	710	parallel
Strand 7	D	736	739	parallel
Strand 8	D	761	764	parallel
Strand 9	D	533	536	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	1013	1019	first strand
Strand 2	D	1022	1031	anti-parallel
Strand 3	D	1039	1046	anti-parallel
Strand 4	D	1049	1056	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	1077	1079	first strand
Strand 2	D	1139	1144	anti-parallel
Strand 3	D	1121	1126	anti-parallel
Strand 4	D	1096	1097	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	1113	1116	first strand
Strand 2	D	1102	1107	anti-parallel
Strand 3	D	1084	1089	anti-parallel
Strand 4	D	1133	1134	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: 4QSH

Analysis of interatomic Contacts of Structural Units in PDB entry:
4QSH