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

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 1EFK entry

There are 4 chains in PDB entry 1EFK (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ILE 21	PRO 573
B	ILE 21	PRO 573
C	ILE 21	PRO 573
D	ILE 21	PRO 573

There are132 helices in PDB entry 1EFK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	26	31	Right-handed alpha
Helix 2	2	A	36	40	Right-handed 310
Helix 3	3	A	41	48	Right-handed alpha
Helix 4	4	A	60	73	Right-handed alpha
Helix 5	5	A	77	89	Right-handed alpha
Helix 6	6	A	92	102	Right-handed alpha
Helix 7	7	A	103	112	Right-handed alpha
Helix 8	8	A	114	121	Right-handed alpha
Helix 9	9	A	122	127	Right-handed alpha
Helix 10	10	A	138	140	Right-handed 310
Helix 11	11	A	142	148	Right-handed alpha
Helix 12	12	A	166	170	Right-handed 310
Helix 13	13	A	172	176	Right-handed 310
Helix 14	14	A	177	192	Right-handed alpha
Helix 15	15	A	194	196	Right-handed 310
Helix 16	16	A	209	215	Right-handed alpha
Helix 17	17	A	228	247	Right-handed alpha
Helix 18	18	A	258	270	Right-handed alpha
Helix 19	19	A	280	299	Right-handed alpha
Helix 20	20	A	301	305	Right-handed 310
Helix 21	21	A	313	329	Right-handed alpha
Helix 22	22	A	333	339	Right-handed alpha
Helix 23	23	A	362	366	Right-handed 310
Helix 24	24	A	376	385	Right-handed alpha
Helix 25	25	A	400	411	Right-handed alpha
Helix 26	26	A	429	437	Right-handed alpha
Helix 27	27	A	466	469	Right-handed 310
Helix 28	28	A	470	481	Right-handed alpha
Helix 29	29	A	487	500	Right-handed alpha
Helix 30	30	A	503	508	Right-handed alpha
Helix 31	31	A	515	517	Right-handed 310
Helix 32	32	A	518	537	Right-handed alpha
Helix 33	33	A	548	556	Right-handed alpha
Helix 34	34	B	26	31	Right-handed alpha
Helix 35	35	B	36	40	Right-handed 310
Helix 36	36	B	41	48	Right-handed alpha
Helix 37	37	B	60	73	Right-handed alpha
Helix 38	38	B	77	89	Right-handed alpha
Helix 39	39	B	92	102	Right-handed alpha
Helix 40	40	B	103	112	Right-handed alpha
Helix 41	41	B	114	121	Right-handed alpha
Helix 42	42	B	138	140	Right-handed 310
Helix 43	43	B	142	148	Right-handed alpha
Helix 44	44	B	172	176	Right-handed 310
Helix 45	45	B	177	192	Right-handed alpha
Helix 46	46	B	194	196	Right-handed 310
Helix 47	47	B	211	215	Right-handed 310
Helix 48	48	B	228	247	Right-handed alpha
Helix 49	49	B	258	271	Right-handed alpha
Helix 50	50	B	278	299	Right-handed alpha
Helix 51	51	B	301	305	Right-handed 310
Helix 52	52	B	313	330	Right-handed alpha
Helix 53	53	B	333	340	Right-handed alpha
Helix 54	54	B	362	366	Right-handed 310
Helix 55	55	B	376	385	Right-handed alpha
Helix 56	56	B	400	411	Right-handed alpha
Helix 57	57	B	422	426	Right-handed 310
Helix 58	58	B	429	437	Right-handed alpha
Helix 59	59	B	466	469	Right-handed 310
Helix 60	60	B	470	482	Right-handed alpha
Helix 61	61	B	488	500	Right-handed alpha
Helix 62	62	B	503	509	Right-handed alpha
Helix 63	63	B	515	517	Right-handed 310
Helix 64	64	B	518	537	Right-handed alpha
Helix 65	65	B	548	555	Right-handed alpha
Helix 66	66	C	26	31	Right-handed alpha
Helix 67	67	C	36	40	Right-handed 310
Helix 68	68	C	41	48	Right-handed alpha
Helix 69	69	C	60	75	Right-handed alpha
Helix 70	70	C	77	89	Right-handed alpha
Helix 71	71	C	92	103	Right-handed alpha
Helix 72	72	C	103	112	Right-handed alpha
Helix 73	73	C	114	121	Right-handed alpha
Helix 74	74	C	122	127	Right-handed alpha
Helix 75	75	C	138	140	Right-handed 310
Helix 76	76	C	142	148	Right-handed alpha
Helix 77	77	C	166	170	Right-handed 310
Helix 78	78	C	172	176	Right-handed 310
Helix 79	79	C	177	192	Right-handed alpha
Helix 80	80	C	194	196	Right-handed 310
Helix 81	81	C	209	214	Right-handed alpha
Helix 82	82	C	228	247	Right-handed alpha
Helix 83	83	C	258	270	Right-handed alpha
Helix 84	84	C	278	299	Right-handed alpha
Helix 85	85	C	301	305	Right-handed 310
Helix 86	86	C	313	330	Right-handed alpha
Helix 87	87	C	333	340	Right-handed alpha
Helix 88	88	C	362	366	Right-handed 310
Helix 89	89	C	376	385	Right-handed alpha
Helix 90	90	C	400	411	Right-handed alpha
Helix 91	91	C	422	426	Right-handed 310
Helix 92	92	C	429	437	Right-handed alpha
Helix 93	93	C	466	469	Right-handed 310
Helix 94	94	C	470	482	Right-handed alpha
Helix 95	95	C	487	500	Right-handed alpha
Helix 96	96	C	503	510	Right-handed alpha
Helix 97	97	C	515	517	Right-handed 310
Helix 98	98	C	518	537	Right-handed alpha
Helix 99	99	C	548	556	Right-handed alpha
Helix 100	100	D	26	31	Right-handed alpha
Helix 101	101	D	36	40	Right-handed 310
Helix 102	102	D	41	48	Right-handed alpha
Helix 103	103	D	60	75	Right-handed alpha
Helix 104	104	D	77	89	Right-handed alpha
Helix 105	105	D	92	102	Right-handed alpha
Helix 106	106	D	103	112	Right-handed alpha
Helix 107	107	D	114	121	Right-handed alpha
Helix 108	108	D	122	127	Right-handed alpha
Helix 109	109	D	138	140	Right-handed 310
Helix 110	110	D	142	148	Right-handed alpha
Helix 111	111	D	172	176	Right-handed 310
Helix 112	112	D	177	192	Right-handed alpha
Helix 113	113	D	194	196	Right-handed 310
Helix 114	114	D	209	214	Right-handed alpha
Helix 115	115	D	228	247	Right-handed alpha
Helix 116	116	D	258	270	Right-handed alpha
Helix 117	117	D	280	299	Right-handed alpha
Helix 118	118	D	301	305	Right-handed 310
Helix 119	119	D	313	329	Right-handed alpha
Helix 120	120	D	333	340	Right-handed alpha
Helix 121	121	D	362	366	Right-handed 310
Helix 122	122	D	376	385	Right-handed alpha
Helix 123	123	D	400	411	Right-handed alpha
Helix 124	124	D	422	426	Right-handed 310
Helix 125	125	D	429	437	Right-handed alpha
Helix 126	126	D	466	469	Right-handed 310
Helix 127	127	D	470	481	Right-handed alpha
Helix 128	128	D	488	500	Right-handed alpha
Helix 129	129	D	503	508	Right-handed alpha
Helix 130	130	D	515	517	Right-handed 310
Helix 131	131	D	518	537	Right-handed alpha
Helix 132	132	D	548	556	Right-handed alpha

There are 12 sheets in PDB entry 1EFK. 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 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	133	136	first strand
Strand 2	A	198	204	parallel
Strand 3	A	157	161	parallel
Strand 4	A	251	254	parallel
Strand 5	A	275	277	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	341	344	first strand
Strand 2	A	307	310	parallel
Strand 3	A	388	391	parallel
Strand 4	A	415	418	parallel
Strand 5	A	442	445	parallel
Strand 6	A	463	464	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	452	453	first strand
Strand 2	A	459	460	anti-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	B	133	136	first strand
Strand 2	B	198	204	parallel
Strand 3	B	157	161	parallel
Strand 4	B	251	254	parallel
Strand 5	B	275	277	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	348	349	first strand
Strand 2	B	341	345	anti-parallel
Strand 3	B	307	310	parallel
Strand 4	B	388	391	parallel
Strand 5	B	415	418	parallel
Strand 6	B	442	445	parallel
Strand 7	B	463	464	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	B	452	453	first strand
Strand 2	B	459	460	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	C	133	136	first strand
Strand 2	C	198	204	parallel
Strand 3	C	157	161	parallel
Strand 4	C	251	254	parallel
Strand 5	C	275	277	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	348	349	first strand
Strand 2	C	341	345	anti-parallel
Strand 3	C	307	310	parallel
Strand 4	C	388	391	parallel
Strand 5	C	415	418	parallel
Strand 6	C	442	445	parallel
Strand 7	C	463	464	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	452	453	first strand
Strand 2	C	459	460	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	D	133	136	first strand
Strand 2	D	198	204	parallel
Strand 3	D	157	161	parallel
Strand 4	D	251	254	parallel
Strand 5	D	275	277	parallel

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There are 6 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	341	344	first strand
Strand 2	D	307	310	parallel
Strand 3	D	388	391	parallel
Strand 4	D	415	418	parallel
Strand 5	D	442	445	parallel
Strand 6	D	463	464	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	D	452	453	first strand
Strand 2	D	459	460	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: 1EFK

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