Analysis of interatomic Contacts of Structural Units in PDB entry:
21BH

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 21BH entry

There are 14 chains in PDB entry 21BH (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
B	ALA 2	LYS 200
C	LYS 3	LYS 200
D	ALA 2	LYS 200
E	ALA 2	LYS 200
F	LYS 3	PHE 198
G	MET 1	LEU 239
H	MET 1	LEU 609
I	VAL 435	LEU 609
J	LYS 3	LYS 200
K	MET 1	LEU 609
L	LYS 433	PRO 607
M	U -8	U 39
N	C 2	U 38
O	LYS 3	LYS 200

There are 99 helices in PDB entry 21BH. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	B	24	33	Right-handed alpha
Helix 2	AA2	B	51	66	Right-handed alpha
Helix 3	AA3	B	84	91	Right-handed alpha
Helix 4	AA4	B	109	113	Right-handed alpha
Helix 5	AA5	B	156	172	Right-handed alpha
Helix 6	AA6	B	196	199	Right-handed 310
Helix 7	AA7	C	24	32	Right-handed alpha
Helix 8	AA8	C	51	67	Right-handed alpha
Helix 9	AA9	C	84	90	Right-handed alpha
Helix 10	AB1	C	110	113	Right-handed alpha
Helix 11	AB2	C	155	172	Right-handed alpha
Helix 12	AB3	C	196	199	Right-handed 310
Helix 13	AB4	D	24	32	Right-handed alpha
Helix 14	AB5	D	51	67	Right-handed alpha
Helix 15	AB6	D	84	91	Right-handed alpha
Helix 16	AB7	D	109	113	Right-handed alpha
Helix 17	AB8	D	154	171	Right-handed alpha
Helix 18	AB9	D	196	200	Right-handed 310
Helix 19	AC1	E	24	33	Right-handed alpha
Helix 20	AC2	E	51	66	Right-handed alpha
Helix 21	AC3	E	84	91	Right-handed alpha
Helix 22	AC4	E	109	113	Right-handed alpha
Helix 23	AC5	E	155	172	Right-handed alpha
Helix 24	AC6	E	196	200	Right-handed 310
Helix 25	AC7	F	24	33	Right-handed alpha
Helix 26	AC8	F	51	67	Right-handed alpha
Helix 27	AC9	F	84	91	Right-handed alpha
Helix 28	AD1	F	109	113	Right-handed alpha
Helix 29	AD2	F	157	172	Right-handed alpha
Helix 30	AD3	G	28	44	Right-handed alpha
Helix 31	AD4	G	46	53	Right-handed alpha
Helix 32	AD5	G	93	95	Right-handed 310
Helix 33	AD6	G	124	142	Right-handed alpha
Helix 34	AD7	G	148	152	Right-handed 310
Helix 35	AD8	H	42	52	Right-handed alpha
Helix 36	AD9	H	64	69	Right-handed alpha
Helix 37	AE1	H	70	78	Right-handed alpha
Helix 38	AE2	H	86	107	Right-handed alpha
Helix 39	AE3	H	114	124	Right-handed alpha
Helix 40	AE4	H	207	221	Right-handed alpha
Helix 41	AE5	H	233	244	Right-handed alpha
Helix 42	AE6	H	255	268	Right-handed alpha
Helix 43	AE7	H	273	278	Right-handed alpha
Helix 44	AE8	H	295	305	Right-handed alpha
Helix 45	AE9	H	322	331	Right-handed alpha
Helix 46	AF1	H	348	355	Right-handed alpha
Helix 47	AF2	H	375	386	Right-handed alpha
Helix 48	AF3	H	399	413	Right-handed alpha
Helix 49	AF4	H	470	481	Right-handed alpha
Helix 50	AF5	H	509	523	Right-handed alpha
Helix 51	AF6	H	527	541	Right-handed alpha
Helix 52	AF7	H	541	553	Right-handed alpha
Helix 53	AF8	H	572	592	Right-handed alpha
Helix 54	AF9	H	594	604	Right-handed alpha
Helix 55	AG1	I	470	487	Right-handed alpha
Helix 56	AG2	I	509	524	Right-handed alpha
Helix 57	AG3	I	527	541	Right-handed alpha
Helix 58	AG4	I	541	554	Right-handed alpha
Helix 59	AG5	I	572	592	Right-handed alpha
Helix 60	AG6	I	594	604	Right-handed alpha
Helix 61	AG7	J	24	30	Right-handed alpha
Helix 62	AG8	J	51	67	Right-handed alpha
Helix 63	AG9	J	84	91	Right-handed alpha
Helix 64	AH1	J	109	113	Right-handed alpha
Helix 65	AH2	J	156	172	Right-handed alpha
Helix 66	AH3	J	176	180	Right-handed 310
Helix 67	AH4	K	8	10	Right-handed 310
Helix 68	AH5	K	40	53	Right-handed alpha
Helix 69	AH6	K	64	69	Right-handed alpha
Helix 70	AH7	K	70	77	Right-handed alpha
Helix 71	AH8	K	86	108	Right-handed alpha
Helix 72	AH9	K	114	124	Right-handed alpha
Helix 73	AI1	K	205	221	Right-handed alpha
Helix 74	AI2	K	233	244	Right-handed alpha
Helix 75	AI3	K	255	268	Right-handed alpha
Helix 76	AI4	K	269	272	Right-handed 310
Helix 77	AI5	K	273	280	Right-handed alpha
Helix 78	AI6	K	298	305	Right-handed alpha
Helix 79	AI7	K	323	329	Right-handed alpha
Helix 80	AI8	K	375	385	Right-handed alpha
Helix 81	AI9	K	399	412	Right-handed alpha
Helix 82	AJ1	K	470	488	Right-handed alpha
Helix 83	AJ2	K	509	524	Right-handed alpha
Helix 84	AJ3	K	527	539	Right-handed alpha
Helix 85	AJ4	K	540	554	Right-handed alpha
Helix 86	AJ5	K	572	591	Right-handed alpha
Helix 87	AJ6	K	594	604	Right-handed alpha
Helix 88	AJ7	L	470	488	Right-handed alpha
Helix 89	AJ8	L	511	524	Right-handed alpha
Helix 90	AJ9	L	527	541	Right-handed alpha
Helix 91	AK1	L	541	554	Right-handed alpha
Helix 92	AK2	L	572	592	Right-handed alpha
Helix 93	AK3	L	594	604	Right-handed alpha
Helix 94	AK4	O	24	33	Right-handed alpha
Helix 95	AK5	O	50	67	Right-handed alpha
Helix 96	AK6	O	84	91	Right-handed alpha
Helix 97	AK7	O	109	113	Right-handed alpha
Helix 98	AK8	O	156	172	Right-handed alpha
Helix 99	AK9	O	196	198	Right-handed 310

There are 36 sheets in PDB entry 21BH. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3, AB4, AB5, AB6, AB7, AB8, AB9, AC1, AC2, AC3, AC4, AC5, AC6, AC7, AC8, AC9, AD1, AD2, AD3, AD4, AD5, AD6, AD7, AD8, AD9,

There are 4 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	48	49	first strand
Strand 2	B	104	106	anti-parallel
Strand 3	B	143	150	anti-parallel
Strand 4	B	99	101	anti-parallel

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There are 5 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	48	49	first strand
Strand 2	B	104	106	anti-parallel
Strand 3	B	143	150	anti-parallel
Strand 4	B	4	14	anti-parallel
Strand 5	B	184	194	anti-parallel

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There are 2 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	114	118	first strand
Strand 2	B	134	138	anti-parallel

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There are 2 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	121	122	first strand
Strand 2	B	129	131	anti-parallel

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There are 4 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	46	49	first strand
Strand 2	C	104	109	anti-parallel
Strand 3	C	143	150	anti-parallel
Strand 4	C	99	101	anti-parallel

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There are 5 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	46	49	first strand
Strand 2	C	104	109	anti-parallel
Strand 3	C	143	150	anti-parallel
Strand 4	C	4	14	anti-parallel
Strand 5	C	184	194	anti-parallel

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There are 2 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	114	118	first strand
Strand 2	C	134	138	anti-parallel

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There are 4 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	48	49	first strand
Strand 2	D	104	106	anti-parallel
Strand 3	D	143	151	anti-parallel
Strand 4	D	99	101	anti-parallel

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There are 5 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	48	49	first strand
Strand 2	D	104	106	anti-parallel
Strand 3	D	143	151	anti-parallel
Strand 4	D	4	14	anti-parallel
Strand 5	D	184	194	anti-parallel

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There are 2 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	114	122	first strand
Strand 2	D	129	138	anti-parallel

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There are 4 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	48	49	first strand
Strand 2	E	104	106	anti-parallel
Strand 3	E	143	151	anti-parallel
Strand 4	E	99	101	anti-parallel

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There are 5 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	48	49	first strand
Strand 2	E	104	106	anti-parallel
Strand 3	E	143	151	anti-parallel
Strand 4	E	4	14	anti-parallel
Strand 5	E	184	194	anti-parallel

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There are 2 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	114	122	first strand
Strand 2	E	129	138	anti-parallel

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There are 4 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	48	49	first strand
Strand 2	F	104	106	anti-parallel
Strand 3	F	143	150	anti-parallel
Strand 4	F	99	101	anti-parallel

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There are 5 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	48	49	first strand
Strand 2	F	104	106	anti-parallel
Strand 3	F	143	150	anti-parallel
Strand 4	F	6	14	anti-parallel
Strand 5	F	184	192	anti-parallel

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There are 2 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	114	122	first strand
Strand 2	F	129	138	anti-parallel

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There are 5 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	59	62	first strand
Strand 2	G	115	122	anti-parallel
Strand 3	G	3	10	anti-parallel
Strand 4	G	155	164	anti-parallel
Strand 5	G	143	144	anti-parallel

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There are 3 strands in AB9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	75	76	first strand
Strand 2	G	83	84	anti-parallel
Strand 3	G	91	92	anti-parallel

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There are 2 strands in AC1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	97	100	first strand
Strand 2	G	107	110	anti-parallel

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There are 3 strands in AC2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	214	215	first strand
Strand 2	G	174	176	anti-parallel
Strand 3	G	236	237	anti-parallel

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There are 2 strands in AC3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	187	192	first strand
Strand 2	G	203	208	anti-parallel

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There are 6 strands in AC4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	2	5	first strand
Strand 2	H	14	20	anti-parallel
Strand 3	H	23	30	anti-parallel
Strand 4	H	57	59	parallel
Strand 5	H	83	85	parallel
Strand 6	H	125	127	parallel

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There are 6 strands in AC5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	134	136	first strand
Strand 2	H	139	145	anti-parallel
Strand 3	H	153	158	anti-parallel
Strand 4	H	163	168	anti-parallel
Strand 5	H	191	194	parallel
Strand 6	H	392	395	parallel

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There are 6 strands in AC6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	290	292	first strand
Strand 2	H	251	253	parallel
Strand 3	H	310	313	parallel
Strand 4	H	225	228	parallel
Strand 5	H	337	340	parallel
Strand 6	H	363	366	parallel

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There are 4 strands in AC7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	434	436	first strand
Strand 2	H	465	469	parallel
Strand 3	H	450	462	anti-parallel
Strand 4	H	445	447	anti-parallel

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There are 6 strands in AC8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	434	436	first strand
Strand 2	H	465	469	parallel
Strand 3	H	450	462	anti-parallel
Strand 4	K	453	461	anti-parallel
Strand 5	K	465	469	anti-parallel
Strand 6	K	435	438	parallel

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There are 5 strands in AC9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	467	469	first strand
Strand 2	I	452	460	anti-parallel
Strand 3	L	454	460	anti-parallel
Strand 4	L	465	469	anti-parallel
Strand 5	L	434	438	parallel

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There are 4 strands in AD1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	48	49	first strand
Strand 2	J	104	106	anti-parallel
Strand 3	J	143	151	anti-parallel
Strand 4	J	99	101	anti-parallel

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There are 5 strands in AD2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	48	49	first strand
Strand 2	J	104	106	anti-parallel
Strand 3	J	143	151	anti-parallel
Strand 4	J	4	13	anti-parallel
Strand 5	J	187	194	anti-parallel

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There are 2 strands in AD3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	114	122	first strand
Strand 2	J	129	138	anti-parallel

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There are 6 strands in AD4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	2	6	first strand
Strand 2	K	14	19	anti-parallel
Strand 3	K	24	27	anti-parallel
Strand 4	K	57	59	parallel
Strand 5	K	83	85	parallel
Strand 6	K	125	127	parallel

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There are 7 strands in AD5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	134	136	first strand
Strand 2	K	139	145	anti-parallel
Strand 3	K	153	159	anti-parallel
Strand 4	K	162	166	anti-parallel
Strand 5	K	191	195	parallel
Strand 6	K	392	396	parallel
Strand 7	K	417	418	parallel

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There are 3 strands in AD6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	290	292	first strand
Strand 2	K	251	254	parallel
Strand 3	K	310	313	parallel

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There are 4 strands in AD7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	48	49	first strand
Strand 2	O	104	106	anti-parallel
Strand 3	O	143	150	anti-parallel
Strand 4	O	99	101	anti-parallel

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There are 5 strands in AD8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	48	49	first strand
Strand 2	O	104	106	anti-parallel
Strand 3	O	143	150	anti-parallel
Strand 4	O	4	14	anti-parallel
Strand 5	O	184	194	anti-parallel

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There are 2 strands in AD9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	114	118	first strand
Strand 2	O	134	138	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: 21BH

Analysis of interatomic Contacts of Structural Units in PDB entry:
21BH