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

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 3EHK entry

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

Chain ID	Initial residue	Terminal residue
A	ASN 10	SER 523
B	ASN 10	SER 523
C	ASN 10	SER 523
D	ASN 10	TRP 191

There are 61 helices in PDB entry 3EHK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	40	47	Right-handed alpha
Helix 2	2	A	271	275	Right-handed 310
Helix 3	3	A	276	285	Right-handed alpha
Helix 4	4	A	287	296	Right-handed alpha
Helix 5	5	A	352	356	Right-handed 310
Helix 6	6	A	364	368	Right-handed 310
Helix 7	7	A	386	390	Right-handed 310
Helix 8	8	A	488	492	Right-handed 310
Helix 9	9	A	493	502	Right-handed alpha
Helix 10	10	A	504	514	Right-handed alpha
Helix 11	11	B	40	47	Right-handed alpha
Helix 12	12	B	271	275	Right-handed 310
Helix 13	13	B	276	285	Right-handed alpha
Helix 14	14	B	287	295	Right-handed alpha
Helix 15	15	B	352	356	Right-handed 310
Helix 16	16	B	364	368	Right-handed 310
Helix 17	17	B	386	390	Right-handed 310
Helix 18	18	B	488	492	Right-handed 310
Helix 19	19	B	493	502	Right-handed alpha
Helix 20	20	B	504	514	Right-handed alpha
Helix 21	21	C	40	47	Right-handed alpha
Helix 22	22	C	271	275	Right-handed 310
Helix 23	23	C	276	285	Right-handed alpha
Helix 24	24	C	287	292	Right-handed alpha
Helix 25	25	C	293	296	Right-handed 310
Helix 26	26	C	352	356	Right-handed 310
Helix 27	27	C	364	368	Right-handed 310
Helix 28	28	C	386	390	Right-handed 310
Helix 29	29	C	488	492	Right-handed 310
Helix 30	30	C	493	502	Right-handed alpha
Helix 31	31	C	504	514	Right-handed alpha
Helix 32	32	D	40	47	Right-handed alpha
Helix 33	33	D	271	275	Right-handed 310
Helix 34	34	D	276	285	Right-handed alpha
Helix 35	35	D	287	295	Right-handed alpha
Helix 36	36	D	352	356	Right-handed 310
Helix 37	37	D	364	368	Right-handed 310
Helix 38	38	D	386	390	Right-handed 310
Helix 39	39	D	488	492	Right-handed 310
Helix 40	40	D	493	502	Right-handed alpha
Helix 41	41	D	504	514	Right-handed alpha
Helix 42	42	E	40	47	Right-handed alpha
Helix 43	43	E	271	275	Right-handed 310
Helix 44	44	E	276	285	Right-handed alpha
Helix 45	45	E	289	295	Right-handed alpha
Helix 46	46	E	352	356	Right-handed 310
Helix 47	47	E	364	368	Right-handed 310
Helix 48	48	E	386	390	Right-handed 310
Helix 49	49	E	488	492	Right-handed 310
Helix 50	50	E	493	502	Right-handed alpha
Helix 51	51	E	504	514	Right-handed alpha
Helix 52	52	F	40	47	Right-handed alpha
Helix 53	53	F	271	275	Right-handed 310
Helix 54	54	F	276	285	Right-handed alpha
Helix 55	55	F	287	296	Right-handed alpha
Helix 56	56	F	352	356	Right-handed 310
Helix 57	57	F	364	368	Right-handed 310
Helix 58	58	F	386	390	Right-handed 310
Helix 59	59	F	488	492	Right-handed 310
Helix 60	60	F	493	502	Right-handed alpha
Helix 61	61	F	504	514	Right-handed alpha

There are 48 sheets in PDB entry 3EHK. 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, Y, Z, AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN, AO, AP, AQ, AR, AS, AT, AU, AV,

There are 7 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	26	28	first strand
Strand 2	A	31	35	anti-parallel
Strand 3	A	48	55	anti-parallel
Strand 4	A	200	207	anti-parallel
Strand 5	A	70	76	anti-parallel
Strand 6	A	180	184	anti-parallel
Strand 7	A	359	361	anti-parallel

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There are 5 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	173	177	first strand
Strand 2	A	78	84	anti-parallel
Strand 3	A	189	193	anti-parallel
Strand 4	A	59	65	anti-parallel
Strand 5	A	222	223	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	173	177	first strand
Strand 2	A	78	84	anti-parallel
Strand 3	A	189	193	anti-parallel
Strand 4	A	59	65	anti-parallel
Strand 5	A	304	306	anti-parallel

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There are 2 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	92	93	first strand
Strand 2	A	169	170	anti-parallel

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There are 6 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	370	372	first strand
Strand 2	A	376	381	anti-parallel
Strand 3	A	395	401	anti-parallel
Strand 4	A	456	472	anti-parallel
Strand 5	A	405	412	anti-parallel
Strand 6	A	479	481	anti-parallel

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There are 3 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	448	451	first strand
Strand 2	A	417	431	anti-parallel
Strand 3	A	439	443	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	A	448	451	first strand
Strand 2	A	417	431	anti-parallel
Strand 3	A	456	472	anti-parallel
Strand 4	A	405	412	anti-parallel
Strand 5	A	521	522	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	479	481	first strand
Strand 2	A	405	412	anti-parallel
Strand 3	A	521	522	anti-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	B	26	28	first strand
Strand 2	B	31	35	anti-parallel
Strand 3	B	48	55	anti-parallel
Strand 4	B	200	207	anti-parallel
Strand 5	B	70	76	anti-parallel
Strand 6	B	180	184	anti-parallel
Strand 7	B	359	361	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	173	177	first strand
Strand 2	B	78	84	anti-parallel
Strand 3	B	189	193	anti-parallel
Strand 4	B	59	65	anti-parallel
Strand 5	B	222	223	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	173	177	first strand
Strand 2	B	78	84	anti-parallel
Strand 3	B	189	193	anti-parallel
Strand 4	B	59	65	anti-parallel
Strand 5	B	304	306	anti-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	92	93	first strand
Strand 2	B	169	170	anti-parallel

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There are 6 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	370	372	first strand
Strand 2	B	376	381	anti-parallel
Strand 3	B	395	401	anti-parallel
Strand 4	B	456	472	anti-parallel
Strand 5	B	405	412	anti-parallel
Strand 6	B	479	481	anti-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	448	451	first strand
Strand 2	B	417	431	anti-parallel
Strand 3	B	439	442	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	B	448	451	first strand
Strand 2	B	417	431	anti-parallel
Strand 3	B	456	472	anti-parallel
Strand 4	B	405	412	anti-parallel
Strand 5	B	521	522	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	479	481	first strand
Strand 2	B	405	412	anti-parallel
Strand 3	B	521	522	anti-parallel

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There are 7 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	26	28	first strand
Strand 2	C	31	36	anti-parallel
Strand 3	C	48	55	anti-parallel
Strand 4	C	200	207	anti-parallel
Strand 5	C	70	76	anti-parallel
Strand 6	C	180	184	anti-parallel
Strand 7	C	359	361	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	173	177	first strand
Strand 2	C	78	84	anti-parallel
Strand 3	C	189	193	anti-parallel
Strand 4	C	59	65	anti-parallel
Strand 5	C	222	223	anti-parallel

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There are 5 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	173	177	first strand
Strand 2	C	78	84	anti-parallel
Strand 3	C	189	193	anti-parallel
Strand 4	C	59	65	anti-parallel
Strand 5	C	304	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	92	93	first strand
Strand 2	C	169	170	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	370	372	first strand
Strand 2	C	376	381	anti-parallel
Strand 3	C	395	401	anti-parallel
Strand 4	C	456	472	anti-parallel
Strand 5	C	405	412	anti-parallel
Strand 6	C	479	481	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	448	451	first strand
Strand 2	C	417	431	anti-parallel
Strand 3	C	439	443	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	448	451	first strand
Strand 2	C	417	431	anti-parallel
Strand 3	C	456	472	anti-parallel
Strand 4	C	405	412	anti-parallel
Strand 5	C	521	522	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	C	479	481	first strand
Strand 2	C	405	412	anti-parallel
Strand 3	C	521	522	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	26	28	first strand
Strand 2	D	31	35	anti-parallel
Strand 3	D	49	55	anti-parallel
Strand 4	D	200	206	anti-parallel
Strand 5	D	70	76	anti-parallel
Strand 6	D	180	184	anti-parallel
Strand 7	D	359	361	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	173	177	first strand
Strand 2	D	78	84	anti-parallel
Strand 3	D	189	193	anti-parallel
Strand 4	D	59	65	anti-parallel
Strand 5	D	222	223	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	173	177	first strand
Strand 2	D	78	84	anti-parallel
Strand 3	D	189	193	anti-parallel
Strand 4	D	59	65	anti-parallel
Strand 5	D	304	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	92	93	first strand
Strand 2	D	169	170	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	370	372	first strand
Strand 2	D	376	381	anti-parallel
Strand 3	D	395	401	anti-parallel
Strand 4	D	456	472	anti-parallel
Strand 5	D	405	412	anti-parallel
Strand 6	D	479	481	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	D	448	451	first strand
Strand 2	D	417	431	anti-parallel
Strand 3	D	439	443	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	448	451	first strand
Strand 2	D	417	431	anti-parallel
Strand 3	D	456	472	anti-parallel
Strand 4	D	405	412	anti-parallel
Strand 5	D	521	522	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	479	481	first strand
Strand 2	D	405	412	anti-parallel
Strand 3	D	521	522	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	26	28	first strand
Strand 2	E	31	35	anti-parallel
Strand 3	E	48	55	anti-parallel
Strand 4	E	200	207	anti-parallel
Strand 5	E	70	76	anti-parallel
Strand 6	E	180	184	anti-parallel
Strand 7	E	359	361	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	173	177	first strand
Strand 2	E	78	84	anti-parallel
Strand 3	E	189	193	anti-parallel
Strand 4	E	59	65	anti-parallel
Strand 5	E	222	223	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	173	177	first strand
Strand 2	E	78	84	anti-parallel
Strand 3	E	189	193	anti-parallel
Strand 4	E	59	65	anti-parallel
Strand 5	E	304	306	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	E	92	93	first strand
Strand 2	E	169	170	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	370	372	first strand
Strand 2	E	376	381	anti-parallel
Strand 3	E	395	401	anti-parallel
Strand 4	E	456	472	anti-parallel
Strand 5	E	405	412	anti-parallel
Strand 6	E	479	481	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	448	451	first strand
Strand 2	E	417	431	anti-parallel
Strand 3	E	439	443	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	448	451	first strand
Strand 2	E	417	431	anti-parallel
Strand 3	E	456	472	anti-parallel
Strand 4	E	405	412	anti-parallel
Strand 5	E	521	522	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	479	481	first strand
Strand 2	E	405	412	anti-parallel
Strand 3	E	521	522	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	26	28	first strand
Strand 2	F	31	35	anti-parallel
Strand 3	F	49	55	anti-parallel
Strand 4	F	200	206	anti-parallel
Strand 5	F	70	76	anti-parallel
Strand 6	F	180	184	anti-parallel
Strand 7	F	359	361	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	173	175	first strand
Strand 2	F	80	84	anti-parallel
Strand 3	F	189	193	anti-parallel
Strand 4	F	59	65	anti-parallel
Strand 5	F	222	223	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	173	175	first strand
Strand 2	F	80	84	anti-parallel
Strand 3	F	189	193	anti-parallel
Strand 4	F	59	65	anti-parallel
Strand 5	F	304	306	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	92	93	first strand
Strand 2	F	169	170	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	370	372	first strand
Strand 2	F	376	381	anti-parallel
Strand 3	F	395	401	anti-parallel
Strand 4	F	456	472	anti-parallel
Strand 5	F	405	412	anti-parallel
Strand 6	F	479	481	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	448	451	first strand
Strand 2	F	417	431	anti-parallel
Strand 3	F	439	442	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	448	451	first strand
Strand 2	F	417	431	anti-parallel
Strand 3	F	456	472	anti-parallel
Strand 4	F	405	412	anti-parallel
Strand 5	F	521	522	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	479	481	first strand
Strand 2	F	405	412	anti-parallel
Strand 3	F	521	522	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: 3EHK

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