Analysis of interatomic Contacts of Structural Units in PDB entry:
2A7S

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 2A7S entry

There are 6 chains in PDB entry 2A7S (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ILE 20	LEU 548
B	ILE 20	LEU 548
C	ILE 20	LEU 548
D	ILE 20	LEU 548
E	ILE 20	LEU 548
F	ILE 20	LEU 548

There are169 helices in PDB entry 2A7S. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	24	39	Right-handed alpha
Helix 2	2	A	44	54	Right-handed alpha
Helix 3	3	A	58	67	Right-handed alpha
Helix 4	4	A	119	123	Right-handed 310
Helix 5	5	A	125	143	Right-handed alpha
Helix 6	6	A	156	160	Right-handed 310
Helix 7	7	A	161	178	Right-handed alpha
Helix 8	8	A	193	195	Right-handed 310
Helix 9	9	A	196	202	Right-handed alpha
Helix 10	10	A	218	227	Right-handed alpha
Helix 11	11	A	231	237	Right-handed alpha
Helix 12	12	A	237	244	Right-handed alpha
Helix 13	13	A	254	269	Right-handed alpha
Helix 14	14	A	288	292	Right-handed 310
Helix 15	15	A	294	299	Right-handed alpha
Helix 16	16	A	314	322	Right-handed alpha
Helix 17	17	A	358	362	Right-handed 310
Helix 18	18	A	364	381	Right-handed alpha
Helix 19	19	A	397	404	Right-handed alpha
Helix 20	20	A	404	419	Right-handed alpha
Helix 21	21	A	433	439	Right-handed alpha
Helix 22	22	A	441	445	Right-handed 310
Helix 23	23	A	461	470	Right-handed alpha
Helix 24	24	A	475	479	Right-handed 310
Helix 25	25	A	489	497	Right-handed alpha
Helix 26	26	A	502	508	Right-handed alpha
Helix 27	27	A	516	518	Right-handed 310
Helix 28	28	A	519	531	Right-handed alpha
Helix 29	29	B	24	39	Right-handed alpha
Helix 30	30	B	44	54	Right-handed alpha
Helix 31	31	B	58	67	Right-handed alpha
Helix 32	32	B	87	91	Right-handed 310
Helix 33	33	B	119	123	Right-handed 310
Helix 34	34	B	125	143	Right-handed alpha
Helix 35	35	B	156	160	Right-handed 310
Helix 36	36	B	161	178	Right-handed alpha
Helix 37	37	B	196	202	Right-handed alpha
Helix 38	38	B	218	227	Right-handed alpha
Helix 39	39	B	231	237	Right-handed alpha
Helix 40	40	B	237	244	Right-handed alpha
Helix 41	41	B	254	269	Right-handed alpha
Helix 42	42	B	288	292	Right-handed 310
Helix 43	43	B	294	300	Right-handed alpha
Helix 44	44	B	301	303	Right-handed 310
Helix 45	45	B	314	322	Right-handed alpha
Helix 46	46	B	358	362	Right-handed 310
Helix 47	47	B	364	381	Right-handed alpha
Helix 48	48	B	397	403	Right-handed alpha
Helix 49	49	B	404	419	Right-handed alpha
Helix 50	50	B	433	439	Right-handed alpha
Helix 51	51	B	441	445	Right-handed 310
Helix 52	52	B	461	469	Right-handed alpha
Helix 53	53	B	470	480	Right-handed alpha
Helix 54	54	B	487	497	Right-handed alpha
Helix 55	55	B	502	509	Right-handed alpha
Helix 56	56	B	516	518	Right-handed 310
Helix 57	57	B	519	531	Right-handed alpha
Helix 58	58	C	24	39	Right-handed alpha
Helix 59	59	C	44	54	Right-handed alpha
Helix 60	60	C	58	67	Right-handed alpha
Helix 61	61	C	84	88	Right-handed 310
Helix 62	62	C	93	97	Right-handed 310
Helix 63	63	C	119	123	Right-handed 310
Helix 64	64	C	125	143	Right-handed alpha
Helix 65	65	C	156	160	Right-handed 310
Helix 66	66	C	161	178	Right-handed alpha
Helix 67	67	C	196	202	Right-handed alpha
Helix 68	68	C	218	227	Right-handed alpha
Helix 69	69	C	231	237	Right-handed alpha
Helix 70	70	C	237	244	Right-handed alpha
Helix 71	71	C	254	269	Right-handed alpha
Helix 72	72	C	289	293	Right-handed 310
Helix 73	73	C	294	304	Right-handed alpha
Helix 74	74	C	314	322	Right-handed alpha
Helix 75	75	C	358	362	Right-handed 310
Helix 76	76	C	364	381	Right-handed alpha
Helix 77	77	C	397	403	Right-handed alpha
Helix 78	78	C	404	419	Right-handed alpha
Helix 79	79	C	433	439	Right-handed alpha
Helix 80	80	C	441	445	Right-handed 310
Helix 81	81	C	461	470	Right-handed alpha
Helix 82	82	C	472	477	Right-handed alpha
Helix 83	83	C	487	499	Right-handed alpha
Helix 84	84	C	501	508	Right-handed alpha
Helix 85	85	C	516	518	Right-handed 310
Helix 86	86	C	519	531	Right-handed alpha
Helix 87	87	D	24	40	Right-handed alpha
Helix 88	88	D	46	53	Right-handed alpha
Helix 89	89	D	58	67	Right-handed alpha
Helix 90	90	D	119	123	Right-handed 310
Helix 91	91	D	125	143	Right-handed alpha
Helix 92	92	D	156	160	Right-handed 310
Helix 93	93	D	161	177	Right-handed alpha
Helix 94	94	D	196	202	Right-handed alpha
Helix 95	95	D	218	227	Right-handed alpha
Helix 96	96	D	231	237	Right-handed alpha
Helix 97	97	D	237	244	Right-handed alpha
Helix 98	98	D	254	269	Right-handed alpha
Helix 99	99	D	288	292	Right-handed 310
Helix 100	100	D	294	300	Right-handed alpha
Helix 101	101	D	301	303	Right-handed 310
Helix 102	102	D	314	322	Right-handed alpha
Helix 103	103	D	358	362	Right-handed 310
Helix 104	104	D	364	381	Right-handed alpha
Helix 105	105	D	397	403	Right-handed alpha
Helix 106	106	D	404	419	Right-handed alpha
Helix 107	107	D	433	439	Right-handed alpha
Helix 108	108	D	441	445	Right-handed 310
Helix 109	109	D	461	470	Right-handed alpha
Helix 110	110	D	470	476	Right-handed alpha
Helix 111	111	D	489	497	Right-handed alpha
Helix 112	112	D	501	509	Right-handed alpha
Helix 113	113	D	519	531	Right-handed alpha
Helix 114	114	E	24	40	Right-handed alpha
Helix 115	115	E	44	54	Right-handed alpha
Helix 116	116	E	58	67	Right-handed alpha
Helix 117	117	E	84	91	Right-handed 310
Helix 118	118	E	93	96	Right-handed 310
Helix 119	119	E	119	123	Right-handed 310
Helix 120	120	E	125	143	Right-handed alpha
Helix 121	121	E	156	159	Right-handed 310
Helix 122	122	E	160	178	Right-handed alpha
Helix 123	123	E	196	202	Right-handed alpha
Helix 124	124	E	218	227	Right-handed alpha
Helix 125	125	E	231	237	Right-handed alpha
Helix 126	126	E	239	244	Right-handed alpha
Helix 127	127	E	254	267	Right-handed alpha
Helix 128	128	E	288	292	Right-handed 310
Helix 129	129	E	294	300	Right-handed alpha
Helix 130	130	E	314	322	Right-handed alpha
Helix 131	131	E	358	362	Right-handed 310
Helix 132	132	E	364	381	Right-handed alpha
Helix 133	133	E	397	403	Right-handed alpha
Helix 134	134	E	404	419	Right-handed alpha
Helix 135	135	E	433	439	Right-handed alpha
Helix 136	136	E	441	445	Right-handed 310
Helix 137	137	E	461	470	Right-handed alpha
Helix 138	138	E	470	480	Right-handed alpha
Helix 139	139	E	486	497	Right-handed alpha
Helix 140	140	E	502	507	Right-handed alpha
Helix 141	141	E	516	518	Right-handed 310
Helix 142	142	E	519	531	Right-handed alpha
Helix 143	143	F	24	39	Right-handed alpha
Helix 144	144	F	43	53	Right-handed alpha
Helix 145	145	F	58	67	Right-handed alpha
Helix 146	146	F	119	123	Right-handed 310
Helix 147	147	F	125	143	Right-handed alpha
Helix 148	148	F	156	159	Right-handed 310
Helix 149	149	F	160	178	Right-handed alpha
Helix 150	150	F	196	202	Right-handed alpha
Helix 151	151	F	218	227	Right-handed alpha
Helix 152	152	F	231	237	Right-handed alpha
Helix 153	153	F	239	244	Right-handed alpha
Helix 154	154	F	254	267	Right-handed alpha
Helix 155	155	F	294	300	Right-handed alpha
Helix 156	156	F	301	303	Right-handed 310
Helix 157	157	F	314	322	Right-handed alpha
Helix 158	158	F	358	362	Right-handed 310
Helix 159	159	F	364	381	Right-handed alpha
Helix 160	160	F	397	403	Right-handed alpha
Helix 161	161	F	404	419	Right-handed alpha
Helix 162	162	F	433	439	Right-handed alpha
Helix 163	163	F	441	445	Right-handed 310
Helix 164	164	F	461	470	Right-handed alpha
Helix 165	165	F	472	477	Right-handed alpha
Helix 166	166	F	487	497	Right-handed alpha
Helix 167	167	F	501	508	Right-handed alpha
Helix 168	168	F	516	518	Right-handed 310
Helix 169	169	F	519	531	Right-handed alpha

There are 23 sheets in PDB entry 2A7S. 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,

There are 7 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	73	75	first strand
Strand 2	A	98	104	anti-parallel
Strand 3	A	109	115	anti-parallel
Strand 4	A	146	150	parallel
Strand 5	A	183	187	parallel
Strand 6	A	204	208	parallel
Strand 7	A	250	252	parallel

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There are 6 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	327	329	first strand
Strand 2	A	337	343	anti-parallel
Strand 3	A	348	354	anti-parallel
Strand 4	A	385	391	parallel
Strand 5	A	423	432	parallel
Strand 6	A	456	458	parallel

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There are 7 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	327	329	first strand
Strand 2	A	337	343	anti-parallel
Strand 3	A	348	354	anti-parallel
Strand 4	A	385	391	parallel
Strand 5	A	423	432	parallel
Strand 6	A	448	451	parallel
Strand 7	A	513	514	parallel

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There are 6 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	73	75	first strand
Strand 2	B	98	105	anti-parallel
Strand 3	B	108	115	anti-parallel
Strand 4	B	146	152	parallel
Strand 5	B	183	192	parallel
Strand 6	B	213	215	parallel

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There are 7 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	73	75	first strand
Strand 2	B	98	105	anti-parallel
Strand 3	B	108	115	anti-parallel
Strand 4	B	146	152	parallel
Strand 5	B	183	192	parallel
Strand 6	B	204	208	parallel
Strand 7	B	250	252	parallel

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There are 6 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	327	328	first strand
Strand 2	B	337	344	anti-parallel
Strand 3	B	347	354	anti-parallel
Strand 4	B	385	391	parallel
Strand 5	B	423	432	parallel
Strand 6	B	456	458	parallel

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There are 7 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	327	328	first strand
Strand 2	B	337	344	anti-parallel
Strand 3	B	347	354	anti-parallel
Strand 4	B	385	391	parallel
Strand 5	B	423	432	parallel
Strand 6	B	448	451	parallel
Strand 7	B	513	514	parallel

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There are 7 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	73	75	first strand
Strand 2	C	99	104	anti-parallel
Strand 3	C	109	114	anti-parallel
Strand 4	C	146	150	parallel
Strand 5	C	183	187	parallel
Strand 6	C	204	208	parallel
Strand 7	C	250	252	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	190	192	first strand
Strand 2	C	213	215	parallel

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There are 6 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	327	329	first strand
Strand 2	C	337	344	anti-parallel
Strand 3	C	347	354	anti-parallel
Strand 4	C	385	391	parallel
Strand 5	C	423	432	parallel
Strand 6	C	456	458	parallel

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There are 7 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	327	329	first strand
Strand 2	C	337	344	anti-parallel
Strand 3	C	347	354	anti-parallel
Strand 4	C	385	391	parallel
Strand 5	C	423	432	parallel
Strand 6	C	448	451	parallel
Strand 7	C	513	514	parallel

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There are 6 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	73	75	first strand
Strand 2	D	98	105	anti-parallel
Strand 3	D	108	115	anti-parallel
Strand 4	D	146	152	parallel
Strand 5	D	183	192	parallel
Strand 6	D	213	215	parallel

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There are 7 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	73	75	first strand
Strand 2	D	98	105	anti-parallel
Strand 3	D	108	115	anti-parallel
Strand 4	D	146	152	parallel
Strand 5	D	183	192	parallel
Strand 6	D	204	208	parallel
Strand 7	D	250	252	parallel

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There are 6 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	327	329	first strand
Strand 2	D	337	344	anti-parallel
Strand 3	D	347	354	anti-parallel
Strand 4	D	385	391	parallel
Strand 5	D	423	432	parallel
Strand 6	D	456	458	parallel

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There are 7 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	327	329	first strand
Strand 2	D	337	344	anti-parallel
Strand 3	D	347	354	anti-parallel
Strand 4	D	385	391	parallel
Strand 5	D	423	432	parallel
Strand 6	D	448	451	parallel
Strand 7	D	513	514	parallel

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There are 7 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	73	75	first strand
Strand 2	E	98	104	anti-parallel
Strand 3	E	109	115	anti-parallel
Strand 4	E	146	150	parallel
Strand 5	E	183	187	parallel
Strand 6	E	204	208	parallel
Strand 7	E	250	252	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	190	192	first strand
Strand 2	E	213	215	parallel

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There are 6 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	327	329	first strand
Strand 2	E	337	344	anti-parallel
Strand 3	E	347	354	anti-parallel
Strand 4	E	385	391	parallel
Strand 5	E	423	432	parallel
Strand 6	E	456	458	parallel

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There are 7 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	327	329	first strand
Strand 2	E	337	344	anti-parallel
Strand 3	E	347	354	anti-parallel
Strand 4	E	385	391	parallel
Strand 5	E	423	432	parallel
Strand 6	E	448	451	parallel
Strand 7	E	513	514	parallel

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There are 6 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	73	75	first strand
Strand 2	F	98	105	anti-parallel
Strand 3	F	108	115	anti-parallel
Strand 4	F	146	152	parallel
Strand 5	F	183	192	parallel
Strand 6	F	213	215	parallel

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There are 7 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	73	75	first strand
Strand 2	F	98	105	anti-parallel
Strand 3	F	108	115	anti-parallel
Strand 4	F	146	152	parallel
Strand 5	F	183	192	parallel
Strand 6	F	204	208	parallel
Strand 7	F	250	252	parallel

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There are 6 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	327	329	first strand
Strand 2	F	337	344	anti-parallel
Strand 3	F	347	354	anti-parallel
Strand 4	F	385	391	parallel
Strand 5	F	423	432	parallel
Strand 6	F	456	458	parallel

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There are 7 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	327	329	first strand
Strand 2	F	337	344	anti-parallel
Strand 3	F	347	354	anti-parallel
Strand 4	F	385	391	parallel
Strand 5	F	423	432	parallel
Strand 6	F	448	451	parallel
Strand 7	F	513	514	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: 2A7S

Analysis of interatomic Contacts of Structural Units in PDB entry:
2A7S