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

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 1FEA entry

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

Chain ID	Initial residue	Terminal residue
A	SER 1	ASP 487
B	SER 1	GLU 484
C	SER 1	ASP 487
D	SER 1	GLU 484

There are 69 helices in PDB entry 1FEA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	53	A	13	26	Right-handed alpha
Helix 2	54	A	50	54	Right-handed alpha
Helix 3	55	A	56	76	Right-handed alpha
Helix 4	56	A	84	86	Right-handed 310
Helix 5	57	A	91	114	Right-handed alpha
Helix 6	58	A	171	173	Right-handed 310
Helix 7	59	A	177	182	Right-handed alpha
Helix 8	60	A	197	209	Right-handed alpha
Helix 9	61	A	231	244	Right-handed alpha
Helix 10	62	A	291	293	Right-handed 310
Helix 11	63	A	325	328	Right-handed 310
Helix 12	64	A	334	349	Right-handed alpha
Helix 13	65	A	378	383	Right-handed alpha
Helix 14	66	A	398	403	Right-handed 310
Helix 15	67	A	433	446	Right-handed alpha
Helix 16	68	A	450	454	Right-handed alpha
Helix 17	69	A	464	469	Right-handed 310
Helix 18	35	B	13	26	Right-handed alpha
Helix 19	36	B	49	54	Right-handed alpha
Helix 20	37	B	56	78	Right-handed alpha
Helix 21	38	B	84	86	Right-handed 310
Helix 22	39	B	91	111	Right-handed alpha
Helix 23	40	B	171	173	Right-handed 310
Helix 24	41	B	177	182	Right-handed alpha
Helix 25	42	B	197	208	Right-handed alpha
Helix 26	43	B	231	243	Right-handed alpha
Helix 27	44	B	291	293	Right-handed 310
Helix 28	45	B	295	298	Right-handed 310
Helix 29	46	B	325	328	Right-handed 310
Helix 30	47	B	334	348	Right-handed alpha
Helix 31	48	B	378	383	Right-handed alpha
Helix 32	49	B	398	403	Right-handed alpha
Helix 33	50	B	433	445	Right-handed alpha
Helix 34	51	B	450	454	Right-handed alpha
Helix 35	52	B	464	468	Right-handed 310
Helix 36	17	C	13	26	Right-handed alpha
Helix 37	18	C	49	54	Right-handed alpha
Helix 38	19	C	56	78	Right-handed alpha
Helix 39	20	C	84	86	Right-handed 310
Helix 40	21	C	91	113	Right-handed alpha
Helix 41	22	C	171	173	Right-handed 310
Helix 42	23	C	177	182	Right-handed alpha
Helix 43	24	C	197	209	Right-handed alpha
Helix 44	25	C	231	243	Right-handed alpha
Helix 45	26	C	291	293	Right-handed 310
Helix 46	27	C	295	298	Right-handed 310
Helix 47	28	C	325	328	Right-handed 310
Helix 48	29	C	334	350	Right-handed alpha
Helix 49	30	C	378	382	Right-handed alpha
Helix 50	31	C	398	402	Right-handed 310
Helix 51	32	C	433	445	Right-handed alpha
Helix 52	33	C	450	454	Right-handed alpha
Helix 53	34	C	464	469	Right-handed 310
Helix 54	1	D	15	24	Right-handed alpha
Helix 55	2	D	49	54	Right-handed alpha
Helix 56	3	D	56	78	Right-handed alpha
Helix 57	4	D	91	112	Right-handed alpha
Helix 58	5	D	171	173	Right-handed 310
Helix 59	6	D	177	182	Right-handed alpha
Helix 60	7	D	197	209	Right-handed alpha
Helix 61	8	D	231	244	Right-handed alpha
Helix 62	9	D	295	298	Right-handed alpha
Helix 63	10	D	326	328	Right-handed 310
Helix 64	11	D	334	349	Right-handed alpha
Helix 65	12	D	378	382	Right-handed alpha
Helix 66	13	D	398	403	Right-handed 310
Helix 67	14	D	433	445	Right-handed alpha
Helix 68	15	D	450	454	Right-handed alpha
Helix 69	16	D	464	468	Right-handed 310

There are 24 sheets in PDB entry 1FEA. 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,

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	D	321	323	first strand
Strand 2	D	154	157	parallel
Strand 3	D	6	9	parallel
Strand 4	D	30	34	parallel
Strand 5	D	119	123	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	161	163	first strand
Strand 2	D	286	288	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	279	282	first strand
Strand 2	D	189	193	parallel
Strand 3	D	215	220	parallel
Strand 4	D	247	250	parallel

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There are 3 strands in D sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	274	277	first strand
Strand 2	D	265	269	anti-parallel
Strand 3	D	254	259	anti-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	D	362	365	first strand
Strand 2	D	371	375	anti-parallel
Strand 3	D	423	429	anti-parallel
Strand 4	D	409	417	anti-parallel
Strand 5	D	387	396	anti-parallel
Strand 6	D	475	478	anti-parallel
Strand 7	D	481	483	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	C	321	323	first strand
Strand 2	C	154	157	parallel
Strand 3	C	6	9	parallel
Strand 4	C	30	34	parallel
Strand 5	C	119	123	parallel

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There are 2 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	161	163	first strand
Strand 2	C	286	288	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	C	279	282	first strand
Strand 2	C	189	193	parallel
Strand 3	C	215	220	parallel
Strand 4	C	247	250	parallel

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There are 3 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	274	277	first strand
Strand 2	C	265	269	anti-parallel
Strand 3	C	254	259	anti-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	363	365	first strand
Strand 2	C	371	375	anti-parallel
Strand 3	C	423	429	anti-parallel
Strand 4	C	409	417	anti-parallel
Strand 5	C	387	396	anti-parallel
Strand 6	C	475	478	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	B	321	323	first strand
Strand 2	B	154	157	parallel
Strand 3	B	6	9	parallel
Strand 4	B	30	34	parallel
Strand 5	B	119	123	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	161	163	first strand
Strand 2	B	286	288	anti-parallel

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There are 4 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	279	282	first strand
Strand 2	B	189	193	parallel
Strand 3	B	215	220	parallel
Strand 4	B	246	250	parallel

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There are 3 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	274	277	first strand
Strand 2	B	265	269	anti-parallel
Strand 3	B	254	259	anti-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	B	362	365	first strand
Strand 2	B	371	375	anti-parallel
Strand 3	B	422	429	anti-parallel
Strand 4	B	409	417	anti-parallel
Strand 5	B	387	396	anti-parallel
Strand 6	B	475	478	anti-parallel
Strand 7	B	481	483	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	321	323	first strand
Strand 2	A	154	157	parallel
Strand 3	A	6	9	parallel
Strand 4	A	30	34	parallel
Strand 5	A	119	123	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	A	161	163	first strand
Strand 2	A	286	288	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	279	282	first strand
Strand 2	A	189	193	parallel
Strand 3	A	215	220	parallel
Strand 4	A	247	250	parallel

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There are 3 strands in S sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	274	277	first strand
Strand 2	A	265	269	anti-parallel
Strand 3	A	254	259	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	363	365	first strand
Strand 2	A	371	375	anti-parallel
Strand 3	A	422	429	anti-parallel
Strand 4	A	409	417	anti-parallel
Strand 5	A	387	396	anti-parallel
Strand 6	A	475	478	anti-parallel
Strand 7	A	481	483	anti-parallel

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There are 3 strands in U sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	125	130	first strand
Strand 2	D	133	137	anti-parallel
Strand 3	D	146	151	anti-parallel

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There are 3 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	125	130	first strand
Strand 2	C	133	137	anti-parallel
Strand 3	C	146	151	anti-parallel

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There are 3 strands in W sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	125	130	first strand
Strand 2	B	133	137	anti-parallel
Strand 3	B	146	151	anti-parallel

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There are 3 strands in X sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	125	130	first strand
Strand 2	A	133	137	anti-parallel
Strand 3	A	146	151	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: 1FEA

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