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

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 2PKR entry

There are 12 chains in PDB entry 2PKR (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
O	LYS 0	GLY 334
R	LYS 0	GLY 334
P	LYS 0	GLY 334
Q	LYS 0	GLY 334
A	LYS 0	GLY 334
B	LYS 0	GLY 334
C	LYS 0	GLY 334
D	LYS 0	GLN 333
H	LYS 0	GLN 333
I	LYS 0	GLY 334
L	LYS 0	GLN 333
M	LYS 0	GLY 334

There are163 helices in PDB entry 2PKR. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	O	9	19	Right-handed alpha
Helix 2	2	O	36	46	Right-handed alpha
Helix 3	3	O	78	82	Right-handed 310
Helix 4	4	O	83	88	Right-handed alpha
Helix 5	5	O	101	111	Right-handed alpha
Helix 6	6	O	133	137	Right-handed 310
Helix 7	7	O	148	166	Right-handed alpha
Helix 8	8	O	209	218	Right-handed alpha
Helix 9	9	O	219	222	Right-handed 310
Helix 10	10	O	251	264	Right-handed alpha
Helix 11	11	O	279	284	Right-handed 310
Helix 12	12	O	295	297	Right-handed 310
Helix 13	13	O	314	331	Right-handed alpha
Helix 14	14	R	9	20	Right-handed alpha
Helix 15	15	R	36	46	Right-handed alpha
Helix 16	16	R	78	82	Right-handed 310
Helix 17	17	R	83	88	Right-handed alpha
Helix 18	18	R	101	111	Right-handed alpha
Helix 19	19	R	133	137	Right-handed 310
Helix 20	20	R	148	165	Right-handed alpha
Helix 21	21	R	209	218	Right-handed alpha
Helix 22	22	R	219	222	Right-handed 310
Helix 23	23	R	251	264	Right-handed alpha
Helix 24	24	R	279	284	Right-handed 310
Helix 25	25	R	295	297	Right-handed 310
Helix 26	26	R	314	331	Right-handed alpha
Helix 27	27	P	9	20	Right-handed alpha
Helix 28	28	P	36	46	Right-handed alpha
Helix 29	29	P	78	82	Right-handed 310
Helix 30	30	P	83	88	Right-handed alpha
Helix 31	31	P	101	106	Right-handed alpha
Helix 32	32	P	106	111	Right-handed alpha
Helix 33	33	P	133	137	Right-handed 310
Helix 34	34	P	148	166	Right-handed alpha
Helix 35	35	P	212	218	Right-handed alpha
Helix 36	36	P	219	222	Right-handed 310
Helix 37	37	P	251	265	Right-handed alpha
Helix 38	38	P	279	284	Right-handed 310
Helix 39	39	P	295	297	Right-handed 310
Helix 40	40	P	314	331	Right-handed alpha
Helix 41	41	Q	9	20	Right-handed alpha
Helix 42	42	Q	36	45	Right-handed alpha
Helix 43	43	Q	78	82	Right-handed 310
Helix 44	44	Q	83	88	Right-handed alpha
Helix 45	45	Q	101	106	Right-handed alpha
Helix 46	46	Q	106	111	Right-handed alpha
Helix 47	47	Q	133	137	Right-handed 310
Helix 48	48	Q	148	166	Right-handed alpha
Helix 49	49	Q	209	218	Right-handed alpha
Helix 50	50	Q	219	222	Right-handed 310
Helix 51	51	Q	251	265	Right-handed alpha
Helix 52	52	Q	279	284	Right-handed 310
Helix 53	53	Q	295	297	Right-handed 310
Helix 54	54	Q	314	331	Right-handed alpha
Helix 55	55	A	9	20	Right-handed alpha
Helix 56	56	A	36	46	Right-handed alpha
Helix 57	57	A	78	82	Right-handed 310
Helix 58	58	A	83	88	Right-handed alpha
Helix 59	59	A	101	106	Right-handed alpha
Helix 60	60	A	106	111	Right-handed alpha
Helix 61	61	A	133	137	Right-handed 310
Helix 62	62	A	148	166	Right-handed alpha
Helix 63	63	A	212	218	Right-handed alpha
Helix 64	64	A	219	222	Right-handed 310
Helix 65	65	A	251	265	Right-handed alpha
Helix 66	66	A	279	284	Right-handed 310
Helix 67	67	A	295	297	Right-handed 310
Helix 68	68	A	314	331	Right-handed alpha
Helix 69	69	B	9	20	Right-handed alpha
Helix 70	70	B	36	46	Right-handed alpha
Helix 71	71	B	78	82	Right-handed 310
Helix 72	72	B	83	88	Right-handed alpha
Helix 73	73	B	101	106	Right-handed alpha
Helix 74	74	B	106	111	Right-handed alpha
Helix 75	75	B	133	137	Right-handed 310
Helix 76	76	B	148	166	Right-handed alpha
Helix 77	77	B	212	218	Right-handed alpha
Helix 78	78	B	219	222	Right-handed 310
Helix 79	79	B	251	265	Right-handed alpha
Helix 80	80	B	279	284	Right-handed 310
Helix 81	81	B	295	297	Right-handed 310
Helix 82	82	B	314	331	Right-handed alpha
Helix 83	83	C	9	19	Right-handed alpha
Helix 84	84	C	36	46	Right-handed alpha
Helix 85	85	C	78	82	Right-handed 310
Helix 86	86	C	83	88	Right-handed alpha
Helix 87	87	C	101	111	Right-handed alpha
Helix 88	88	C	133	137	Right-handed 310
Helix 89	89	C	148	166	Right-handed alpha
Helix 90	90	C	209	218	Right-handed alpha
Helix 91	91	C	219	222	Right-handed 310
Helix 92	92	C	251	264	Right-handed alpha
Helix 93	93	C	279	284	Right-handed 310
Helix 94	94	C	295	297	Right-handed 310
Helix 95	95	C	314	331	Right-handed alpha
Helix 96	96	D	9	19	Right-handed alpha
Helix 97	97	D	36	46	Right-handed alpha
Helix 98	98	D	78	82	Right-handed 310
Helix 99	99	D	83	88	Right-handed alpha
Helix 100	100	D	101	111	Right-handed alpha
Helix 101	101	D	133	137	Right-handed 310
Helix 102	102	D	148	165	Right-handed alpha
Helix 103	103	D	209	218	Right-handed alpha
Helix 104	104	D	219	222	Right-handed 310
Helix 105	105	D	251	264	Right-handed alpha
Helix 106	106	D	279	284	Right-handed 310
Helix 107	107	D	295	297	Right-handed 310
Helix 108	108	D	314	331	Right-handed alpha
Helix 109	109	H	9	20	Right-handed alpha
Helix 110	110	H	36	36	Right-handed alpha
Helix 111	111	H	37	46	Right-handed alpha
Helix 112	112	H	78	82	Right-handed 310
Helix 113	113	H	83	88	Right-handed alpha
Helix 114	114	H	101	111	Right-handed alpha
Helix 115	115	H	133	137	Right-handed 310
Helix 116	116	H	148	166	Right-handed alpha
Helix 117	117	H	210	218	Right-handed alpha
Helix 118	118	H	219	222	Right-handed 310
Helix 119	119	H	251	264	Right-handed alpha
Helix 120	120	H	279	284	Right-handed 310
Helix 121	121	H	295	297	Right-handed 310
Helix 122	122	H	314	331	Right-handed alpha
Helix 123	123	I	9	19	Right-handed alpha
Helix 124	124	I	36	46	Right-handed alpha
Helix 125	125	I	78	82	Right-handed 310
Helix 126	126	I	83	88	Right-handed alpha
Helix 127	127	I	101	106	Right-handed alpha
Helix 128	128	I	106	111	Right-handed alpha
Helix 129	129	I	133	137	Right-handed 310
Helix 130	130	I	148	165	Right-handed alpha
Helix 131	131	I	209	218	Right-handed alpha
Helix 132	132	I	219	222	Right-handed 310
Helix 133	133	I	251	265	Right-handed alpha
Helix 134	134	I	279	284	Right-handed 310
Helix 135	135	I	295	297	Right-handed 310
Helix 136	136	I	314	331	Right-handed alpha
Helix 137	137	L	9	19	Right-handed alpha
Helix 138	138	L	36	46	Right-handed alpha
Helix 139	139	L	78	82	Right-handed 310
Helix 140	140	L	83	88	Right-handed alpha
Helix 141	141	L	101	111	Right-handed alpha
Helix 142	142	L	133	137	Right-handed 310
Helix 143	143	L	148	166	Right-handed alpha
Helix 144	144	L	210	218	Right-handed alpha
Helix 145	145	L	219	222	Right-handed 310
Helix 146	146	L	251	265	Right-handed alpha
Helix 147	147	L	279	284	Right-handed 310
Helix 148	148	L	295	297	Right-handed 310
Helix 149	149	L	314	331	Right-handed alpha
Helix 150	150	M	9	19	Right-handed alpha
Helix 151	151	M	36	46	Right-handed alpha
Helix 152	152	M	78	82	Right-handed 310
Helix 153	153	M	83	88	Right-handed alpha
Helix 154	154	M	101	106	Right-handed alpha
Helix 155	155	M	106	111	Right-handed alpha
Helix 156	156	M	133	137	Right-handed 310
Helix 157	157	M	148	166	Right-handed alpha
Helix 158	158	M	209	218	Right-handed alpha
Helix 159	159	M	219	222	Right-handed 310
Helix 160	160	M	251	265	Right-handed alpha
Helix 161	161	M	279	284	Right-handed 310
Helix 162	162	M	295	297	Right-handed 310
Helix 163	163	M	314	331	Right-handed alpha

There are 37 sheets in PDB entry 2PKR. 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,

There are 8 strands in A sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	57	60	first strand
Strand 2	O	63	66	anti-parallel
Strand 3	O	69	74	anti-parallel
Strand 4	O	25	31	parallel
Strand 5	O	1	6	parallel
Strand 6	O	91	94	parallel
Strand 7	O	115	118	parallel
Strand 8	O	143	145	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	204	206	first strand
Strand 2	O	225	232	anti-parallel
Strand 3	O	167	177	parallel
Strand 4	O	238	246	anti-parallel
Strand 5	O	304	311	anti-parallel
Strand 6	O	290	293	anti-parallel
Strand 7	O	271	274	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	204	206	first strand
Strand 2	O	225	232	anti-parallel
Strand 3	O	167	177	parallel
Strand 4	O	238	246	anti-parallel
Strand 5	O	304	311	anti-parallel
Strand 6	O	298	300	anti-parallel

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There are 8 strands in D sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	57	59	first strand
Strand 2	R	63	66	anti-parallel
Strand 3	R	69	74	anti-parallel
Strand 4	R	26	31	parallel
Strand 5	R	2	6	parallel
Strand 6	R	91	94	parallel
Strand 7	R	115	118	parallel
Strand 8	R	143	145	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	204	206	first strand
Strand 2	R	225	232	anti-parallel
Strand 3	R	167	177	parallel
Strand 4	R	238	246	anti-parallel
Strand 5	R	304	311	anti-parallel
Strand 6	R	290	293	anti-parallel
Strand 7	R	271	274	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	204	206	first strand
Strand 2	R	225	232	anti-parallel
Strand 3	R	167	177	parallel
Strand 4	R	238	246	anti-parallel
Strand 5	R	304	311	anti-parallel
Strand 6	R	298	300	anti-parallel

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There are 8 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	57	59	first strand
Strand 2	P	63	66	anti-parallel
Strand 3	P	69	74	anti-parallel
Strand 4	P	25	31	parallel
Strand 5	P	1	6	parallel
Strand 6	P	91	94	parallel
Strand 7	P	115	118	parallel
Strand 8	P	143	145	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	204	206	first strand
Strand 2	P	225	232	anti-parallel
Strand 3	P	167	177	parallel
Strand 4	P	238	246	anti-parallel
Strand 5	P	304	311	anti-parallel
Strand 6	P	290	293	anti-parallel
Strand 7	P	271	274	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	P	204	206	first strand
Strand 2	P	225	232	anti-parallel
Strand 3	P	167	177	parallel
Strand 4	P	238	246	anti-parallel
Strand 5	P	304	311	anti-parallel
Strand 6	P	298	300	anti-parallel

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There are 8 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	57	59	first strand
Strand 2	Q	63	66	anti-parallel
Strand 3	Q	69	74	anti-parallel
Strand 4	Q	25	31	parallel
Strand 5	Q	1	6	parallel
Strand 6	Q	91	94	parallel
Strand 7	Q	115	118	parallel
Strand 8	Q	143	145	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	46	47	first strand
Strand 2	Q	51	52	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	204	206	first strand
Strand 2	Q	225	232	anti-parallel
Strand 3	Q	167	177	parallel
Strand 4	Q	238	246	anti-parallel
Strand 5	Q	304	311	anti-parallel
Strand 6	Q	290	293	anti-parallel
Strand 7	Q	271	274	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	Q	204	206	first strand
Strand 2	Q	225	232	anti-parallel
Strand 3	Q	167	177	parallel
Strand 4	Q	238	246	anti-parallel
Strand 5	Q	304	311	anti-parallel
Strand 6	Q	298	300	anti-parallel

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There are 8 strands in N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	57	59	first strand
Strand 2	A	63	66	anti-parallel
Strand 3	A	69	74	anti-parallel
Strand 4	A	25	31	parallel
Strand 5	A	1	6	parallel
Strand 6	A	91	94	parallel
Strand 7	A	115	118	parallel
Strand 8	A	143	145	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	204	206	first strand
Strand 2	A	225	232	anti-parallel
Strand 3	A	167	177	parallel
Strand 4	A	238	246	anti-parallel
Strand 5	A	304	311	anti-parallel
Strand 6	A	290	293	anti-parallel
Strand 7	A	271	274	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	A	204	206	first strand
Strand 2	A	225	232	anti-parallel
Strand 3	A	167	177	parallel
Strand 4	A	238	246	anti-parallel
Strand 5	A	304	311	anti-parallel
Strand 6	A	298	300	anti-parallel

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There are 8 strands in Q sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	57	59	first strand
Strand 2	B	63	66	anti-parallel
Strand 3	B	69	74	anti-parallel
Strand 4	B	25	31	parallel
Strand 5	B	1	6	parallel
Strand 6	B	91	94	parallel
Strand 7	B	115	118	parallel
Strand 8	B	143	145	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	204	206	first strand
Strand 2	B	225	232	anti-parallel
Strand 3	B	167	177	parallel
Strand 4	B	238	246	anti-parallel
Strand 5	B	304	311	anti-parallel
Strand 6	B	290	293	anti-parallel
Strand 7	B	271	274	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	204	206	first strand
Strand 2	B	225	232	anti-parallel
Strand 3	B	167	177	parallel
Strand 4	B	238	246	anti-parallel
Strand 5	B	304	311	anti-parallel
Strand 6	B	298	300	anti-parallel

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There are 8 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	57	59	first strand
Strand 2	C	63	66	anti-parallel
Strand 3	C	69	74	anti-parallel
Strand 4	C	25	31	parallel
Strand 5	C	1	6	parallel
Strand 6	C	91	94	parallel
Strand 7	C	115	118	parallel
Strand 8	C	143	145	parallel

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There are 7 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	204	206	first strand
Strand 2	C	225	232	anti-parallel
Strand 3	C	167	177	parallel
Strand 4	C	238	246	anti-parallel
Strand 5	C	304	311	anti-parallel
Strand 6	C	290	293	anti-parallel
Strand 7	C	271	274	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	204	206	first strand
Strand 2	C	225	232	anti-parallel
Strand 3	C	167	177	parallel
Strand 4	C	238	246	anti-parallel
Strand 5	C	304	311	anti-parallel
Strand 6	C	298	300	anti-parallel

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There are 8 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	57	59	first strand
Strand 2	D	63	66	anti-parallel
Strand 3	D	69	74	anti-parallel
Strand 4	D	25	31	parallel
Strand 5	D	1	6	parallel
Strand 6	D	91	94	parallel
Strand 7	D	115	118	parallel
Strand 8	D	143	145	parallel

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There are 7 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	204	206	first strand
Strand 2	D	225	232	anti-parallel
Strand 3	D	167	177	parallel
Strand 4	D	238	246	anti-parallel
Strand 5	D	304	311	anti-parallel
Strand 6	D	290	293	anti-parallel
Strand 7	D	271	274	parallel

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There are 6 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	204	206	first strand
Strand 2	D	225	232	anti-parallel
Strand 3	D	167	177	parallel
Strand 4	D	238	246	anti-parallel
Strand 5	D	304	311	anti-parallel
Strand 6	D	298	300	anti-parallel

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There are 8 strands in Z sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	57	59	first strand
Strand 2	H	63	66	anti-parallel
Strand 3	H	69	74	anti-parallel
Strand 4	H	25	31	parallel
Strand 5	H	1	6	parallel
Strand 6	H	91	94	parallel
Strand 7	H	115	118	parallel
Strand 8	H	143	145	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	204	206	first strand
Strand 2	H	225	232	anti-parallel
Strand 3	H	167	177	parallel
Strand 4	H	238	246	anti-parallel
Strand 5	H	304	311	anti-parallel
Strand 6	H	290	293	anti-parallel
Strand 7	H	271	274	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	204	206	first strand
Strand 2	H	225	232	anti-parallel
Strand 3	H	167	177	parallel
Strand 4	H	238	246	anti-parallel
Strand 5	H	304	311	anti-parallel
Strand 6	H	298	300	anti-parallel

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There are 8 strands in AC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	57	59	first strand
Strand 2	I	63	66	anti-parallel
Strand 3	I	69	74	anti-parallel
Strand 4	I	25	31	parallel
Strand 5	I	1	6	parallel
Strand 6	I	91	94	parallel
Strand 7	I	115	118	parallel
Strand 8	I	143	145	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	204	207	first strand
Strand 2	I	225	232	anti-parallel
Strand 3	I	167	177	parallel
Strand 4	I	238	246	anti-parallel
Strand 5	I	304	311	anti-parallel
Strand 6	I	290	293	anti-parallel
Strand 7	I	271	274	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	I	204	207	first strand
Strand 2	I	225	232	anti-parallel
Strand 3	I	167	177	parallel
Strand 4	I	238	246	anti-parallel
Strand 5	I	304	311	anti-parallel
Strand 6	I	298	300	anti-parallel

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There are 8 strands in AF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	57	59	first strand
Strand 2	L	63	66	anti-parallel
Strand 3	L	69	74	anti-parallel
Strand 4	L	25	31	parallel
Strand 5	L	1	6	parallel
Strand 6	L	91	94	parallel
Strand 7	L	115	118	parallel
Strand 8	L	143	145	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	L	204	207	first strand
Strand 2	L	225	232	anti-parallel
Strand 3	L	167	177	parallel
Strand 4	L	238	246	anti-parallel
Strand 5	L	304	311	anti-parallel
Strand 6	L	290	293	anti-parallel
Strand 7	L	271	274	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	204	207	first strand
Strand 2	L	225	232	anti-parallel
Strand 3	L	167	177	parallel
Strand 4	L	238	246	anti-parallel
Strand 5	L	304	311	anti-parallel
Strand 6	L	298	300	anti-parallel

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There are 8 strands in AI sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	57	59	first strand
Strand 2	M	63	66	anti-parallel
Strand 3	M	69	74	anti-parallel
Strand 4	M	25	31	parallel
Strand 5	M	1	6	parallel
Strand 6	M	91	94	parallel
Strand 7	M	115	118	parallel
Strand 8	M	143	145	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	204	207	first strand
Strand 2	M	225	232	anti-parallel
Strand 3	M	167	177	parallel
Strand 4	M	238	246	anti-parallel
Strand 5	M	304	311	anti-parallel
Strand 6	M	290	293	anti-parallel
Strand 7	M	271	274	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	M	204	207	first strand
Strand 2	M	225	232	anti-parallel
Strand 3	M	167	177	parallel
Strand 4	M	238	246	anti-parallel
Strand 5	M	304	311	anti-parallel
Strand 6	M	298	300	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: 2PKR

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