Analysis of interatomic Contacts of Structural Units in PDB entry:
3ETD

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 3ETD entry

There are 6 chains in PDB entry 3ETD (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 1	THR 501
B	ALA 1	THR 501
C	ALA 1	THR 501
D	ALA 1	THR 501
E	ALA 1	THR 501
F	ALA 1	THR 501

There are127 helices in PDB entry 3ETD. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	8	32	Right-handed alpha
Helix 2	2	A	37	53	Right-handed alpha
Helix 3	3	A	100	118	Right-handed alpha
Helix 4	4	A	132	136	Right-handed 310
Helix 5	5	A	137	155	Right-handed alpha
Helix 6	6	A	172	186	Right-handed alpha
Helix 7	7	A	193	198	Right-handed 310
Helix 8	8	A	202	206	Right-handed 310
Helix 9	9	A	213	228	Right-handed alpha
Helix 10	10	A	253	266	Right-handed alpha
Helix 11	11	A	287	299	Right-handed alpha
Helix 12	12	A	313	317	Right-handed 310
Helix 13	13	A	335	339	Right-handed 310
Helix 14	14	A	353	363	Right-handed alpha
Helix 15	15	A	369	374	Right-handed alpha
Helix 16	16	A	375	391	Right-handed alpha
Helix 17	17	A	398	421	Right-handed alpha
Helix 18	18	A	421	426	Right-handed alpha
Helix 19	19	A	433	438	Right-handed alpha
Helix 20	20	A	444	471	Right-handed alpha
Helix 21	21	A	476	495	Right-handed alpha
Helix 22	22	B	8	32	Right-handed alpha
Helix 23	23	B	37	53	Right-handed alpha
Helix 24	24	B	100	118	Right-handed alpha
Helix 25	25	B	132	136	Right-handed 310
Helix 26	26	B	137	155	Right-handed alpha
Helix 27	27	B	172	186	Right-handed alpha
Helix 28	28	B	193	198	Right-handed 310
Helix 29	29	B	202	206	Right-handed 310
Helix 30	30	B	213	228	Right-handed alpha
Helix 31	31	B	253	266	Right-handed alpha
Helix 32	32	B	287	299	Right-handed alpha
Helix 33	33	B	313	317	Right-handed 310
Helix 34	34	B	335	339	Right-handed 310
Helix 35	35	B	353	363	Right-handed alpha
Helix 36	36	B	369	374	Right-handed alpha
Helix 37	37	B	375	391	Right-handed alpha
Helix 38	38	B	398	421	Right-handed alpha
Helix 39	39	B	421	426	Right-handed alpha
Helix 40	40	B	433	438	Right-handed alpha
Helix 41	41	B	444	471	Right-handed alpha
Helix 42	42	B	476	494	Right-handed alpha
Helix 43	43	C	8	32	Right-handed alpha
Helix 44	44	C	37	53	Right-handed alpha
Helix 45	45	C	100	118	Right-handed alpha
Helix 46	46	C	132	136	Right-handed 310
Helix 47	47	C	137	155	Right-handed alpha
Helix 48	48	C	172	186	Right-handed alpha
Helix 49	49	C	193	198	Right-handed 310
Helix 50	50	C	202	206	Right-handed 310
Helix 51	51	C	213	228	Right-handed alpha
Helix 52	52	C	253	266	Right-handed alpha
Helix 53	53	C	287	299	Right-handed alpha
Helix 54	54	C	313	317	Right-handed 310
Helix 55	55	C	335	339	Right-handed 310
Helix 56	56	C	353	363	Right-handed alpha
Helix 57	57	C	369	374	Right-handed alpha
Helix 58	58	C	375	391	Right-handed alpha
Helix 59	59	C	398	421	Right-handed alpha
Helix 60	60	C	421	426	Right-handed alpha
Helix 61	61	C	433	438	Right-handed alpha
Helix 62	62	C	444	471	Right-handed alpha
Helix 63	63	C	476	495	Right-handed alpha
Helix 64	64	D	8	32	Right-handed alpha
Helix 65	65	D	37	53	Right-handed alpha
Helix 66	66	D	100	118	Right-handed alpha
Helix 67	67	D	132	136	Right-handed 310
Helix 68	68	D	137	155	Right-handed alpha
Helix 69	69	D	172	186	Right-handed alpha
Helix 70	70	D	193	198	Right-handed 310
Helix 71	71	D	202	206	Right-handed 310
Helix 72	72	D	213	228	Right-handed alpha
Helix 73	73	D	253	266	Right-handed alpha
Helix 74	74	D	287	299	Right-handed alpha
Helix 75	75	D	313	317	Right-handed 310
Helix 76	76	D	335	339	Right-handed 310
Helix 77	77	D	353	363	Right-handed alpha
Helix 78	78	D	369	374	Right-handed alpha
Helix 79	79	D	375	391	Right-handed alpha
Helix 80	80	D	398	421	Right-handed alpha
Helix 81	81	D	421	426	Right-handed alpha
Helix 82	82	D	433	438	Right-handed alpha
Helix 83	83	D	444	471	Right-handed alpha
Helix 84	84	D	476	494	Right-handed alpha
Helix 85	85	E	8	32	Right-handed alpha
Helix 86	86	E	37	53	Right-handed alpha
Helix 87	87	E	100	118	Right-handed alpha
Helix 88	88	E	132	136	Right-handed 310
Helix 89	89	E	137	155	Right-handed alpha
Helix 90	90	E	172	186	Right-handed alpha
Helix 91	91	E	193	198	Right-handed 310
Helix 92	92	E	202	206	Right-handed 310
Helix 93	93	E	213	228	Right-handed alpha
Helix 94	94	E	253	266	Right-handed alpha
Helix 95	95	E	287	299	Right-handed alpha
Helix 96	96	E	313	317	Right-handed 310
Helix 97	97	E	335	339	Right-handed 310
Helix 98	98	E	353	363	Right-handed alpha
Helix 99	99	E	369	374	Right-handed alpha
Helix 100	100	E	375	391	Right-handed alpha
Helix 101	101	E	398	421	Right-handed alpha
Helix 102	102	E	421	426	Right-handed alpha
Helix 103	103	E	433	438	Right-handed alpha
Helix 104	104	E	444	471	Right-handed alpha
Helix 105	105	E	476	494	Right-handed alpha
Helix 106	106	E	495	500	Right-handed alpha
Helix 107	107	F	8	32	Right-handed alpha
Helix 108	108	F	37	53	Right-handed alpha
Helix 109	109	F	100	118	Right-handed alpha
Helix 110	110	F	132	136	Right-handed 310
Helix 111	111	F	137	155	Right-handed alpha
Helix 112	112	F	172	186	Right-handed alpha
Helix 113	113	F	193	198	Right-handed 310
Helix 114	114	F	202	206	Right-handed 310
Helix 115	115	F	213	228	Right-handed alpha
Helix 116	116	F	253	266	Right-handed alpha
Helix 117	117	F	287	299	Right-handed alpha
Helix 118	118	F	313	317	Right-handed 310
Helix 119	119	F	335	339	Right-handed 310
Helix 120	120	F	353	363	Right-handed alpha
Helix 121	121	F	369	374	Right-handed alpha
Helix 122	122	F	375	391	Right-handed alpha
Helix 123	123	F	398	421	Right-handed alpha
Helix 124	124	F	421	426	Right-handed alpha
Helix 125	125	F	433	438	Right-handed alpha
Helix 126	126	F	444	471	Right-handed alpha
Helix 127	127	F	476	495	Right-handed alpha

There are 12 sheets in PDB entry 3ETD. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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	93	95	first strand
Strand 2	A	123	129	parallel
Strand 3	A	72	81	anti-parallel
Strand 4	A	57	66	anti-parallel
Strand 5	D	57	66	anti-parallel
Strand 6	D	72	81	anti-parallel
Strand 7	D	123	129	anti-parallel
Strand 8	D	93	95	parallel

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There are 10 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	163	164	first strand
Strand 2	A	89	90	parallel
Strand 3	A	123	129	parallel
Strand 4	A	72	81	anti-parallel
Strand 5	A	57	66	anti-parallel
Strand 6	D	57	66	anti-parallel
Strand 7	D	72	81	anti-parallel
Strand 8	D	123	129	anti-parallel
Strand 9	D	89	90	parallel
Strand 10	D	163	164	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	308	310	first strand
Strand 2	A	279	286	anti-parallel
Strand 3	A	269	274	anti-parallel
Strand 4	A	246	250	parallel
Strand 5	A	321	324	parallel
Strand 6	A	343	345	parallel
Strand 7	A	366	368	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	93	95	first strand
Strand 2	B	123	129	parallel
Strand 3	B	72	81	anti-parallel
Strand 4	B	57	66	anti-parallel
Strand 5	E	57	66	anti-parallel
Strand 6	E	72	81	anti-parallel
Strand 7	E	123	129	anti-parallel
Strand 8	E	93	95	parallel

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There are 10 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	163	164	first strand
Strand 2	B	89	90	parallel
Strand 3	B	123	129	parallel
Strand 4	B	72	81	anti-parallel
Strand 5	B	57	66	anti-parallel
Strand 6	E	57	66	anti-parallel
Strand 7	E	72	81	anti-parallel
Strand 8	E	123	129	anti-parallel
Strand 9	E	89	90	parallel
Strand 10	E	163	164	parallel

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There are 7 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	308	310	first strand
Strand 2	B	279	286	anti-parallel
Strand 3	B	269	274	anti-parallel
Strand 4	B	246	250	parallel
Strand 5	B	321	324	parallel
Strand 6	B	343	345	parallel
Strand 7	B	366	368	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	93	95	first strand
Strand 2	C	123	129	parallel
Strand 3	C	72	81	anti-parallel
Strand 4	C	57	66	anti-parallel
Strand 5	F	57	66	anti-parallel
Strand 6	F	72	81	anti-parallel
Strand 7	F	123	129	anti-parallel
Strand 8	F	93	95	parallel

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There are 10 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	163	164	first strand
Strand 2	C	89	90	parallel
Strand 3	C	123	129	parallel
Strand 4	C	72	81	anti-parallel
Strand 5	C	57	66	anti-parallel
Strand 6	F	57	66	anti-parallel
Strand 7	F	72	81	anti-parallel
Strand 8	F	123	129	anti-parallel
Strand 9	F	89	90	parallel
Strand 10	F	163	164	parallel

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There are 7 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	308	310	first strand
Strand 2	C	279	286	anti-parallel
Strand 3	C	269	274	anti-parallel
Strand 4	C	246	250	parallel
Strand 5	C	321	324	parallel
Strand 6	C	343	345	parallel
Strand 7	C	366	368	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	D	308	310	first strand
Strand 2	D	279	286	anti-parallel
Strand 3	D	269	274	anti-parallel
Strand 4	D	246	250	parallel
Strand 5	D	321	324	parallel
Strand 6	D	343	345	parallel
Strand 7	D	366	368	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	E	308	310	first strand
Strand 2	E	279	286	anti-parallel
Strand 3	E	269	274	anti-parallel
Strand 4	E	246	250	parallel
Strand 5	E	321	324	parallel
Strand 6	E	343	345	parallel
Strand 7	E	366	368	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	308	310	first strand
Strand 2	F	279	286	anti-parallel
Strand 3	F	269	274	anti-parallel
Strand 4	F	246	250	parallel
Strand 5	F	321	324	parallel
Strand 6	F	343	345	parallel
Strand 7	F	366	368	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: 3ETD

Analysis of interatomic Contacts of Structural Units in PDB entry:
3ETD