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

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 4CQN entry

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

Chain ID	Initial residue	Terminal residue
A	MET 1	GLY 860
B	G 1	A 76
D	MET 1	GLY 860
E	G 1	A 76

There are 74 helices in PDB entry 4CQN. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	6	21	Right-handed alpha
Helix 2	2	A	49	69	Right-handed alpha
Helix 3	3	A	84	93	Right-handed alpha
Helix 4	4	A	96	115	Right-handed alpha
Helix 5	5	A	120	124	Right-handed 310
Helix 6	6	A	129	146	Right-handed alpha
Helix 7	7	A	167	169	Right-handed 310
Helix 8	8	A	195	197	Right-handed 310
Helix 9	9	A	198	205	Right-handed alpha
Helix 10	10	A	206	209	Right-handed 310
Helix 11	11	A	213	225	Right-handed alpha
Helix 12	12	A	249	256	Right-handed 310
Helix 13	13	A	265	274	Right-handed alpha
Helix 14	14	A	275	285	Right-handed alpha
Helix 15	15	A	286	288	Right-handed 310
Helix 16	16	A	291	298	Right-handed alpha
Helix 17	17	A	338	341	Right-handed 310
Helix 18	18	A	342	353	Right-handed alpha
Helix 19	19	A	384	388	Right-handed 310
Helix 20	20	A	391	406	Right-handed alpha
Helix 21	21	A	446	450	Right-handed 310
Helix 22	22	A	465	470	Right-handed alpha
Helix 23	23	A	492	497	Right-handed alpha
Helix 24	24	A	498	503	Right-handed alpha
Helix 25	25	A	514	522	Right-handed alpha
Helix 26	26	A	532	534	Right-handed 310
Helix 27	27	A	535	551	Right-handed alpha
Helix 28	28	A	587	591	Right-handed 310
Helix 29	29	A	621	625	Right-handed 310
Helix 30	30	A	630	638	Right-handed alpha
Helix 31	31	A	638	649	Right-handed alpha
Helix 32	32	A	662	682	Right-handed alpha
Helix 33	33	A	695	718	Right-handed alpha
Helix 34	34	A	721	738	Right-handed alpha
Helix 35	35	A	743	762	Right-handed alpha
Helix 36	36	A	765	776	Right-handed alpha
Helix 37	37	A	781	785	Right-handed 310
Helix 38	38	A	791	795	Right-handed 310
Helix 39	39	A	821	832	Right-handed alpha
Helix 40	40	A	832	840	Right-handed alpha
Helix 41	41	D	7	22	Right-handed alpha
Helix 42	42	D	49	68	Right-handed alpha
Helix 43	43	D	84	93	Right-handed alpha
Helix 44	44	D	96	115	Right-handed alpha
Helix 45	45	D	120	124	Right-handed 310
Helix 46	46	D	129	146	Right-handed alpha
Helix 47	47	D	195	197	Right-handed 310
Helix 48	48	D	198	206	Right-handed alpha
Helix 49	49	D	213	225	Right-handed alpha
Helix 50	50	D	249	256	Right-handed 310
Helix 51	51	D	265	273	Right-handed alpha
Helix 52	52	D	278	283	Right-handed alpha
Helix 53	53	D	284	287	Right-handed 310
Helix 54	54	D	291	298	Right-handed alpha
Helix 55	55	D	342	351	Right-handed alpha
Helix 56	56	D	384	388	Right-handed 310
Helix 57	57	D	391	406	Right-handed alpha
Helix 58	58	D	446	450	Right-handed 310
Helix 59	59	D	465	470	Right-handed alpha
Helix 60	60	D	492	503	Right-handed alpha
Helix 61	61	D	514	522	Right-handed alpha
Helix 62	62	D	530	534	Right-handed 310
Helix 63	63	D	535	551	Right-handed alpha
Helix 64	64	D	630	638	Right-handed alpha
Helix 65	65	D	638	650	Right-handed alpha
Helix 66	66	D	662	682	Right-handed alpha
Helix 67	67	D	697	718	Right-handed alpha
Helix 68	68	D	721	736	Right-handed alpha
Helix 69	69	D	743	762	Right-handed alpha
Helix 70	70	D	765	774	Right-handed alpha
Helix 71	71	D	781	785	Right-handed 310
Helix 72	72	D	792	796	Right-handed 310
Helix 73	73	D	821	831	Right-handed alpha
Helix 74	74	D	832	838	Right-handed alpha

There are 23 sheets in PDB entry 4CQN. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, A, DB, C, DD, DE, DF, G, DH, DI, DJ, DK,

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	72	74	first strand
Strand 2	A	34	39	parallel
Strand 3	A	524	530	parallel
Strand 4	A	560	566	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	164	166	first strand
Strand 2	A	149	159	anti-parallel
Strand 3	A	184	193	anti-parallel
Strand 4	A	420	421	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	171	172	first strand
Strand 2	A	175	176	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	243	247	first strand
Strand 2	A	226	234	anti-parallel
Strand 3	A	409	415	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	302	310	first strand
Strand 2	A	317	323	anti-parallel
Strand 3	A	258	262	parallel
Strand 4	A	334	337	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	423	424	first strand
Strand 2	A	489	490	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	442	444	first strand
Strand 2	A	434	437	anti-parallel
Strand 3	A	481	485	anti-parallel
Strand 4	A	475	478	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	583	586	first strand
Strand 2	A	569	577	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	613	619	first strand
Strand 2	A	569	577	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	656	657	first strand
Strand 2	A	569	577	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	592	595	first strand
Strand 2	A	601	605	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	809	817	first strand
Strand 2	A	799	806	anti-parallel
Strand 3	A	854	860	parallel
Strand 4	A	843	850	anti-parallel

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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	D	72	74	first strand
Strand 2	D	34	39	parallel
Strand 3	D	524	528	parallel
Strand 4	D	560	564	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	78	79	first strand
Strand 2	D	125	126	parallel

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There are 3 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	149	152	first strand
Strand 2	D	190	193	anti-parallel
Strand 3	D	420	421	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	165	166	first strand
Strand 2	D	157	158	anti-parallel
Strand 3	D	184	185	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	243	247	first strand
Strand 2	D	230	234	anti-parallel
Strand 3	D	409	411	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	302	310	first strand
Strand 2	D	317	323	anti-parallel
Strand 3	D	258	262	parallel
Strand 4	D	334	337	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	D	360	361	first strand
Strand 2	D	380	381	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	423	424	first strand
Strand 2	D	489	490	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	442	444	first strand
Strand 2	D	434	437	anti-parallel
Strand 3	D	481	485	anti-parallel
Strand 4	D	475	478	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	592	594	first strand
Strand 2	D	603	605	anti-parallel
Strand 3	D	611	619	anti-parallel
Strand 4	D	569	575	anti-parallel
Strand 5	D	656	657	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	809	817	first strand
Strand 2	D	799	806	anti-parallel
Strand 3	D	854	857	parallel
Strand 4	D	848	850	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: 4CQN

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