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

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 4IWS entry

There are 3 chains in PDB entry 4IWS (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 1	PHE 493
B	ASN 2	ALA 496
C	ARG 3	ASP 302

There are 91 helices in PDB entry 4IWS. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	1	6	Right-handed alpha
Helix 2	2	A	7	19	Right-handed alpha
Helix 3	3	A	32	45	Right-handed alpha
Helix 4	4	A	78	84	Right-handed alpha
Helix 5	5	A	92	106	Right-handed alpha
Helix 6	6	A	117	121	Right-handed 310
Helix 7	7	A	127	129	Right-handed 310
Helix 8	8	A	130	134	Right-handed 310
Helix 9	9	A	187	198	Right-handed alpha
Helix 10	10	A	212	219	Right-handed alpha
Helix 11	11	A	228	230	Right-handed 310
Helix 12	12	A	231	238	Right-handed alpha
Helix 13	13	A	316	321	Right-handed alpha
Helix 14	14	A	321	336	Right-handed alpha
Helix 15	15	A	347	351	Right-handed 310
Helix 16	16	A	360	368	Right-handed alpha
Helix 17	17	A	370	384	Right-handed alpha
Helix 18	18	A	387	391	Right-handed 310
Helix 19	19	A	405	417	Right-handed alpha
Helix 20	20	A	439	446	Right-handed alpha
Helix 21	21	A	457	462	Right-handed 310
Helix 22	22	A	477	487	Right-handed alpha
Helix 23	23	A	487	492	Right-handed alpha
Helix 24	24	B	3	7	Right-handed alpha
Helix 25	25	B	7	18	Right-handed alpha
Helix 26	26	B	32	45	Right-handed alpha
Helix 27	27	B	73	77	Right-handed 310
Helix 28	28	B	78	83	Right-handed alpha
Helix 29	29	B	84	86	Right-handed 310
Helix 30	30	B	92	104	Right-handed alpha
Helix 31	31	B	117	121	Right-handed 310
Helix 32	32	B	127	129	Right-handed 310
Helix 33	33	B	130	134	Right-handed 310
Helix 34	34	B	187	198	Right-handed alpha
Helix 35	35	B	212	219	Right-handed alpha
Helix 36	36	B	228	230	Right-handed 310
Helix 37	37	B	231	238	Right-handed alpha
Helix 38	38	B	316	337	Right-handed alpha
Helix 39	39	B	347	351	Right-handed 310
Helix 40	40	B	360	367	Right-handed alpha
Helix 41	41	B	370	384	Right-handed alpha
Helix 42	42	B	387	391	Right-handed 310
Helix 43	43	B	405	417	Right-handed alpha
Helix 44	44	B	439	446	Right-handed alpha
Helix 45	45	B	457	463	Right-handed 310
Helix 46	46	B	477	492	Right-handed alpha
Helix 47	47	C	7	18	Right-handed alpha
Helix 48	48	C	32	45	Right-handed alpha
Helix 49	49	C	73	77	Right-handed 310
Helix 50	50	C	78	84	Right-handed alpha
Helix 51	51	C	92	106	Right-handed alpha
Helix 52	52	C	117	121	Right-handed 310
Helix 53	53	C	127	129	Right-handed 310
Helix 54	54	C	130	134	Right-handed 310
Helix 55	55	C	187	198	Right-handed alpha
Helix 56	56	C	212	219	Right-handed alpha
Helix 57	57	C	230	238	Right-handed alpha
Helix 58	58	C	316	321	Right-handed alpha
Helix 59	59	C	321	337	Right-handed alpha
Helix 60	60	C	347	351	Right-handed 310
Helix 61	61	C	360	365	Right-handed alpha
Helix 62	62	C	366	368	Right-handed 310
Helix 63	63	C	370	384	Right-handed alpha
Helix 64	64	C	385	390	Right-handed alpha
Helix 65	65	C	405	417	Right-handed alpha
Helix 66	66	C	439	446	Right-handed alpha
Helix 67	67	C	457	461	Right-handed 310
Helix 68	68	C	477	492	Right-handed alpha
Helix 69	69	D	2	7	Right-handed alpha
Helix 70	70	D	7	18	Right-handed alpha
Helix 71	71	D	32	45	Right-handed alpha
Helix 72	72	D	78	83	Right-handed alpha
Helix 73	73	D	84	86	Right-handed 310
Helix 74	74	D	92	106	Right-handed alpha
Helix 75	75	D	117	121	Right-handed 310
Helix 76	76	D	127	129	Right-handed 310
Helix 77	77	D	130	134	Right-handed 310
Helix 78	78	D	187	199	Right-handed alpha
Helix 79	79	D	212	219	Right-handed alpha
Helix 80	80	D	228	230	Right-handed 310
Helix 81	81	D	231	238	Right-handed alpha
Helix 82	82	D	316	321	Right-handed alpha
Helix 83	83	D	321	336	Right-handed alpha
Helix 84	84	D	362	367	Right-handed alpha
Helix 85	85	D	370	385	Right-handed alpha
Helix 86	86	D	387	391	Right-handed 310
Helix 87	87	D	405	417	Right-handed alpha
Helix 88	88	D	439	446	Right-handed alpha
Helix 89	89	D	457	462	Right-handed 310
Helix 90	90	D	477	487	Right-handed alpha
Helix 91	91	D	487	492	Right-handed alpha

There are 24 sheets in PDB entry 4IWS. 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 4 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	21	24	first strand
Strand 2	A	48	51	parallel
Strand 3	A	62	64	anti-parallel
Strand 4	A	305	307	parallel

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There are 3 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	112	113	first strand
Strand 2	A	242	245	parallel
Strand 3	A	252	254	anti-parallel

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There are 5 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	122	125	first strand
Strand 2	A	288	300	anti-parallel
Strand 3	A	178	180	anti-parallel
Strand 4	A	171	175	anti-parallel
Strand 5	A	147	149	anti-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	A	122	125	first strand
Strand 2	A	288	300	anti-parallel
Strand 3	A	259	273	anti-parallel
Strand 4	A	203	209	anti-parallel
Strand 5	A	152	157	anti-parallel
Strand 6	A	164	168	anti-parallel

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There are 2 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	282	283	first strand
Strand 2	B	468	469	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	A	341	345	first strand
Strand 2	A	354	359	anti-parallel
Strand 3	A	393	398	parallel
Strand 4	A	450	454	parallel
Strand 5	A	423	426	anti-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	A	468	469	first strand
Strand 2	B	282	283	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	B	21	28	first strand
Strand 2	B	48	54	parallel
Strand 3	B	62	64	anti-parallel
Strand 4	B	305	307	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	B	112	113	first strand
Strand 2	B	242	245	parallel
Strand 3	B	252	254	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	B	122	125	first strand
Strand 2	B	288	300	anti-parallel
Strand 3	B	178	180	anti-parallel
Strand 4	B	171	175	anti-parallel
Strand 5	B	147	149	anti-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	B	122	125	first strand
Strand 2	B	288	300	anti-parallel
Strand 3	B	259	273	anti-parallel
Strand 4	B	203	209	anti-parallel
Strand 5	B	152	157	anti-parallel
Strand 6	B	164	168	anti-parallel

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There are 5 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	341	345	first strand
Strand 2	B	354	359	anti-parallel
Strand 3	B	393	398	parallel
Strand 4	B	451	454	parallel
Strand 5	B	423	425	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	C	21	24	first strand
Strand 2	C	48	51	parallel
Strand 3	C	62	64	anti-parallel
Strand 4	C	305	307	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	C	112	113	first strand
Strand 2	C	242	245	parallel
Strand 3	C	252	254	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	122	125	first strand
Strand 2	C	288	300	anti-parallel
Strand 3	C	178	180	anti-parallel
Strand 4	C	171	173	anti-parallel
Strand 5	C	147	149	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	122	125	first strand
Strand 2	C	288	300	anti-parallel
Strand 3	C	259	273	anti-parallel
Strand 4	C	203	209	anti-parallel
Strand 5	C	152	157	anti-parallel
Strand 6	C	164	168	anti-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	C	282	283	first strand
Strand 2	D	468	469	anti-parallel

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There are 5 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	341	345	first strand
Strand 2	C	354	359	anti-parallel
Strand 3	C	393	398	parallel
Strand 4	C	451	454	parallel
Strand 5	C	423	425	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	468	469	first strand
Strand 2	D	282	283	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	21	24	first strand
Strand 2	D	48	51	parallel
Strand 3	D	62	64	anti-parallel
Strand 4	D	305	307	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	112	113	first strand
Strand 2	D	242	245	parallel
Strand 3	D	252	254	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	123	125	first strand
Strand 2	D	288	300	anti-parallel
Strand 3	D	178	180	anti-parallel
Strand 4	D	171	175	anti-parallel
Strand 5	D	147	149	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	123	125	first strand
Strand 2	D	288	300	anti-parallel
Strand 3	D	259	273	anti-parallel
Strand 4	D	203	209	anti-parallel
Strand 5	D	152	157	anti-parallel
Strand 6	D	164	168	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	341	345	first strand
Strand 2	D	354	359	anti-parallel
Strand 3	D	393	398	parallel
Strand 4	D	450	454	parallel
Strand 5	D	423	426	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: 4IWS

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