Analysis of interatomic Contacts of Structural Units in PDB entry:
2B4K

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 2B4K entry

There are 4 chains in PDB entry 2B4K (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	HIS 50	LYS 666
B	HIS 50	LYS 666
C	HIS 50	LYS 666
D	HIS 50	LYS 666

There are100 helices in PDB entry 2B4K. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	68	73	Right-handed alpha
Helix 2	2	A	113	118	Right-handed alpha
Helix 3	3	A	126	131	Right-handed alpha
Helix 4	4	A	132	134	Right-handed 310
Helix 5	5	A	135	142	Right-handed alpha
Helix 6	6	A	176	192	Right-handed alpha
Helix 7	7	A	205	217	Right-handed alpha
Helix 8	8	A	249	259	Right-handed alpha
Helix 9	9	A	273	282	Right-handed alpha
Helix 10	10	A	283	292	Right-handed alpha
Helix 11	11	A	293	295	Right-handed 310
Helix 12	12	A	296	304	Right-handed alpha
Helix 13	13	A	309	314	Right-handed alpha
Helix 14	14	A	316	324	Right-handed alpha
Helix 15	15	A	343	355	Right-handed alpha
Helix 16	16	A	371	375	Right-handed 310
Helix 17	17	A	388	397	Right-handed alpha
Helix 18	18	A	397	407	Right-handed alpha
Helix 19	19	A	489	494	Right-handed alpha
Helix 20	20	A	495	499	Right-handed 310
Helix 21	21	A	501	506	Right-handed alpha
Helix 22	22	A	558	562	Right-handed 310
Helix 23	23	A	576	578	Right-handed 310
Helix 24	24	A	634	638	Right-handed 310
Helix 25	25	A	653	657	Right-handed 310
Helix 26	26	B	68	73	Right-handed alpha
Helix 27	27	B	113	118	Right-handed alpha
Helix 28	28	B	126	131	Right-handed alpha
Helix 29	29	B	132	134	Right-handed 310
Helix 30	30	B	135	141	Right-handed alpha
Helix 31	31	B	176	191	Right-handed alpha
Helix 32	32	B	205	217	Right-handed alpha
Helix 33	33	B	249	259	Right-handed alpha
Helix 34	34	B	273	282	Right-handed alpha
Helix 35	35	B	283	292	Right-handed alpha
Helix 36	36	B	296	305	Right-handed alpha
Helix 37	37	B	309	314	Right-handed alpha
Helix 38	38	B	316	324	Right-handed alpha
Helix 39	39	B	343	355	Right-handed alpha
Helix 40	40	B	371	375	Right-handed 310
Helix 41	41	B	388	397	Right-handed alpha
Helix 42	42	B	397	407	Right-handed alpha
Helix 43	43	B	489	494	Right-handed alpha
Helix 44	44	B	495	499	Right-handed 310
Helix 45	45	B	501	506	Right-handed alpha
Helix 46	46	B	558	562	Right-handed 310
Helix 47	47	B	576	578	Right-handed 310
Helix 48	48	B	634	638	Right-handed 310
Helix 49	49	B	639	643	Right-handed 310
Helix 50	50	B	653	657	Right-handed 310
Helix 51	51	C	67	71	Right-handed 310
Helix 52	52	C	113	118	Right-handed alpha
Helix 53	53	C	126	131	Right-handed alpha
Helix 54	54	C	132	134	Right-handed 310
Helix 55	55	C	135	141	Right-handed alpha
Helix 56	56	C	178	190	Right-handed alpha
Helix 57	57	C	205	217	Right-handed alpha
Helix 58	58	C	249	259	Right-handed alpha
Helix 59	59	C	273	282	Right-handed alpha
Helix 60	60	C	283	291	Right-handed alpha
Helix 61	61	C	292	295	Right-handed 310
Helix 62	62	C	296	305	Right-handed alpha
Helix 63	63	C	309	314	Right-handed alpha
Helix 64	64	C	316	325	Right-handed alpha
Helix 65	65	C	343	355	Right-handed alpha
Helix 66	66	C	371	375	Right-handed 310
Helix 67	67	C	388	397	Right-handed alpha
Helix 68	68	C	397	407	Right-handed alpha
Helix 69	69	C	489	494	Right-handed alpha
Helix 70	70	C	495	499	Right-handed 310
Helix 71	71	C	501	506	Right-handed alpha
Helix 72	72	C	558	562	Right-handed 310
Helix 73	73	C	576	578	Right-handed 310
Helix 74	74	C	634	638	Right-handed 310
Helix 75	75	D	68	73	Right-handed alpha
Helix 76	76	D	113	118	Right-handed alpha
Helix 77	77	D	126	131	Right-handed alpha
Helix 78	78	D	132	134	Right-handed 310
Helix 79	79	D	135	141	Right-handed alpha
Helix 80	80	D	176	192	Right-handed alpha
Helix 81	81	D	206	215	Right-handed alpha
Helix 82	82	D	249	259	Right-handed alpha
Helix 83	83	D	273	282	Right-handed alpha
Helix 84	84	D	283	291	Right-handed alpha
Helix 85	85	D	296	305	Right-handed alpha
Helix 86	86	D	309	314	Right-handed alpha
Helix 87	87	D	316	325	Right-handed alpha
Helix 88	88	D	343	355	Right-handed alpha
Helix 89	89	D	371	375	Right-handed 310
Helix 90	90	D	388	397	Right-handed alpha
Helix 91	91	D	397	407	Right-handed alpha
Helix 92	92	D	453	455	Right-handed 310
Helix 93	93	D	489	494	Right-handed alpha
Helix 94	94	D	495	499	Right-handed 310
Helix 95	95	D	501	507	Right-handed alpha
Helix 96	96	D	558	562	Right-handed 310
Helix 97	97	D	576	578	Right-handed 310
Helix 98	98	D	634	638	Right-handed 310
Helix 99	99	D	639	643	Right-handed 310
Helix 100	100	D	653	657	Right-handed 310

There are 34 sheets in PDB entry 2B4K. 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,

There are 6 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	75	83	first strand
Strand 2	A	89	97	anti-parallel
Strand 3	A	144	149	anti-parallel
Strand 4	A	103	110	parallel
Strand 5	A	195	204	parallel
Strand 6	A	222	228	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	A	241	242	first strand
Strand 2	A	245	246	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	A	330	335	first strand
Strand 2	A	361	366	parallel
Strand 3	A	418	422	parallel
Strand 4	A	427	431	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	379	380	first strand
Strand 2	A	383	384	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	457	458	first strand
Strand 2	A	447	451	anti-parallel
Strand 3	A	659	662	anti-parallel
Strand 4	A	529	536	anti-parallel
Strand 5	A	646	652	anti-parallel
Strand 6	A	466	472	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	457	458	first strand
Strand 2	A	447	451	anti-parallel
Strand 3	A	659	662	anti-parallel
Strand 4	A	529	536	anti-parallel
Strand 5	A	593	598	anti-parallel

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There are 4 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	511	514	first strand
Strand 2	A	611	617	anti-parallel
Strand 3	A	542	550	anti-parallel
Strand 4	A	565	574	anti-parallel

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There are 2 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	522	526	first strand
Strand 2	A	602	606	anti-parallel

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There are 6 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	75	83	first strand
Strand 2	B	89	97	anti-parallel
Strand 3	B	144	149	anti-parallel
Strand 4	B	103	110	parallel
Strand 5	B	195	204	parallel
Strand 6	B	222	228	parallel

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There are 2 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	241	242	first strand
Strand 2	B	245	246	anti-parallel

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There are 4 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	330	335	first strand
Strand 2	B	361	366	parallel
Strand 3	B	418	422	parallel
Strand 4	B	427	431	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	379	380	first strand
Strand 2	B	383	384	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	456	458	first strand
Strand 2	B	447	452	anti-parallel
Strand 3	B	659	662	anti-parallel
Strand 4	B	529	536	anti-parallel
Strand 5	B	646	652	anti-parallel
Strand 6	B	466	472	anti-parallel

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There are 5 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	456	458	first strand
Strand 2	B	447	452	anti-parallel
Strand 3	B	659	662	anti-parallel
Strand 4	B	529	536	anti-parallel
Strand 5	B	593	598	anti-parallel

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There are 4 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	510	514	first strand
Strand 2	B	611	617	anti-parallel
Strand 3	B	542	550	anti-parallel
Strand 4	B	565	574	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	602	606	first strand
Strand 2	B	522	526	anti-parallel
Strand 3	B	664	665	anti-parallel

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There are 6 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	75	83	first strand
Strand 2	C	89	97	anti-parallel
Strand 3	C	144	149	anti-parallel
Strand 4	C	103	110	parallel
Strand 5	C	195	204	parallel
Strand 6	C	222	228	parallel

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There are 2 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	241	242	first strand
Strand 2	C	245	246	anti-parallel

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There are 4 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	330	335	first strand
Strand 2	C	361	366	parallel
Strand 3	C	418	422	parallel
Strand 4	C	427	431	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	379	380	first strand
Strand 2	C	383	384	anti-parallel

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There are 2 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	437	438	first strand
Strand 2	C	444	445	parallel

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There are 6 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	456	458	first strand
Strand 2	C	447	452	anti-parallel
Strand 3	C	659	662	anti-parallel
Strand 4	C	529	536	anti-parallel
Strand 5	C	646	652	anti-parallel
Strand 6	C	466	472	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	456	458	first strand
Strand 2	C	447	452	anti-parallel
Strand 3	C	659	662	anti-parallel
Strand 4	C	529	536	anti-parallel
Strand 5	C	592	598	anti-parallel

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There are 4 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	510	514	first strand
Strand 2	C	611	617	anti-parallel
Strand 3	C	542	550	anti-parallel
Strand 4	C	565	574	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	602	606	first strand
Strand 2	C	522	526	anti-parallel
Strand 3	C	664	665	anti-parallel

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There are 6 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	75	83	first strand
Strand 2	D	89	97	anti-parallel
Strand 3	D	144	149	anti-parallel
Strand 4	D	103	110	parallel
Strand 5	D	195	205	parallel
Strand 6	D	222	230	parallel

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There are 2 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	241	242	first strand
Strand 2	D	245	246	anti-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	D	330	335	first strand
Strand 2	D	361	366	parallel
Strand 3	D	418	422	parallel
Strand 4	D	427	431	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	D	379	380	first strand
Strand 2	D	383	384	anti-parallel

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There are 2 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	437	438	first strand
Strand 2	D	444	445	parallel

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There are 6 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	457	458	first strand
Strand 2	D	447	451	anti-parallel
Strand 3	D	659	662	anti-parallel
Strand 4	D	529	536	anti-parallel
Strand 5	D	646	652	anti-parallel
Strand 6	D	466	472	anti-parallel

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There are 5 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	457	458	first strand
Strand 2	D	447	451	anti-parallel
Strand 3	D	659	662	anti-parallel
Strand 4	D	529	536	anti-parallel
Strand 5	D	593	598	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	D	511	514	first strand
Strand 2	D	611	617	anti-parallel
Strand 3	D	542	550	anti-parallel
Strand 4	D	565	574	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	D	522	523	first strand
Strand 2	D	605	606	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: 2B4K

Analysis of interatomic Contacts of Structural Units in PDB entry:
2B4K