Analysis of interatomic Contacts of Structural Units in PDB entry:
1K9M

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 1K9M entry

There are 30 chains in PDB entry 1K9M (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	U 10	A 2914
B	U 3001	C 3122
C	GLY 1	GLY 237
D	PRO 1	GLY 337
E	MET 1	ARG 246
F	PHE 10	VAL 174
G	PRO 1	PRO 172
H	PRO 1	ARG 119
I	ILE 12	ASP 73
J	LYS 1	ALA 167
K	ALA 4	TRP 145
L	MET 1	VAL 132
M	THR 1	GLN 150
N	ALA 1	ALA 194
O	ALA 1	LEU 186
P	SER 1	ARG 115
Q	THR 1	ALA 143
R	PRO 1	GLU 95
S	GLY 1	PRO 150
T	SER 1	ILE 81
U	SER 1	ALA 119
V	ARG 4	ARG 56
W	THR 1	ASP 65
X	MET 1	ARG 154
Y	GLU 7	GLU 88
Z	THR 95	VAL 236
1	ARG 10	ALA 82
2	THR 1	GLU 56
3	GLY 1	GLU 49
4	MET 1	GLU 92

There are140 helices in PDB entry 1K9M. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	C	4	11	Right-handed alpha
Helix 2	2	C	12	12	Right-handed 310
Helix 3	3	C	13	17	Right-handed 310
Helix 4	4	C	19	23	Right-handed 310
Helix 5	5	C	163	167	Right-handed 310
Helix 6	6	C	171	180	Right-handed alpha
Helix 7	7	C	190	194	Right-handed 310
Helix 8	8	C	195	199	Right-handed 310
Helix 9	9	D	108	112	Right-handed 310
Helix 10	10	D	120	135	Right-handed alpha
Helix 11	11	D	147	151	Right-handed 310
Helix 12	12	D	170	185	Right-handed alpha
Helix 13	13	D	189	193	Right-handed 310
Helix 14	14	D	213	219	Right-handed alpha
Helix 15	15	D	224	230	Right-handed 310
Helix 16	16	E	19	24	Right-handed 310
Helix 17	17	E	27	42	Right-handed alpha
Helix 18	18	E	103	118	Right-handed alpha
Helix 19	19	E	120	127	Right-handed alpha
Helix 20	20	E	142	147	Right-handed 310
Helix 21	21	E	149	160	Right-handed alpha
Helix 22	22	E	162	169	Right-handed alpha
Helix 23	23	E	177	183	Right-handed 310
Helix 24	24	E	201	206	Right-handed alpha
Helix 25	25	E	219	224	Right-handed alpha
Helix 26	26	E	225	228	Right-handed 310
Helix 27	27	E	237	244	Right-handed alpha
Helix 28	28	F	37	46	Right-handed alpha
Helix 29	29	F	77	88	Right-handed alpha
Helix 30	30	F	89	91	Right-handed 310
Helix 31	31	F	139	144	Right-handed alpha
Helix 32	32	F	152	156	Right-handed 310
Helix 33	33	F	158	168	Right-handed alpha
Helix 34	34	G	55	77	Right-handed alpha
Helix 35	35	G	106	110	Right-handed 310
Helix 36	36	G	137	152	Right-handed alpha
Helix 37	37	H	9	27	Right-handed alpha
Helix 38	38	H	32	43	Right-handed alpha
Helix 39	39	H	57	62	Right-handed alpha
Helix 40	40	H	62	69	Right-handed alpha
Helix 41	41	H	79	87	Right-handed alpha
Helix 42	42	H	104	118	Right-handed alpha
Helix 43	43	I	13	29	Right-handed alpha
Helix 44	44	I	63	72	Right-handed alpha
Helix 45	45	J	2	6	Right-handed 310
Helix 46	46	J	58	70	Right-handed alpha
Helix 47	47	J	141	148	Right-handed alpha
Helix 48	48	K	18	31	Right-handed alpha
Helix 49	49	K	40	43	Right-handed 310
Helix 50	50	K	49	63	Right-handed alpha
Helix 51	51	K	74	85	Right-handed alpha
Helix 52	52	K	91	100	Right-handed alpha
Helix 53	53	K	122	126	Right-handed 310
Helix 54	54	K	132	140	Right-handed alpha
Helix 55	55	L	116	118	Right-handed 310
Helix 56	56	L	121	126	Right-handed alpha
Helix 57	57	M	3	7	Right-handed 310
Helix 58	58	M	23	28	Right-handed 310
Helix 59	59	M	54	58	Right-handed 310
Helix 60	60	M	66	72	Right-handed alpha
Helix 61	61	M	94	96	Right-handed 310
Helix 62	62	M	126	136	Right-handed alpha
Helix 63	63	N	4	13	Right-handed alpha
Helix 64	64	N	17	32	Right-handed alpha
Helix 65	65	N	45	53	Right-handed alpha
Helix 66	66	N	82	86	Right-handed 310
Helix 67	67	N	96	109	Right-handed alpha
Helix 68	68	N	147	156	Right-handed 310
Helix 69	69	N	158	162	Right-handed 310
Helix 70	70	N	164	171	Right-handed alpha
Helix 71	71	N	187	191	Right-handed 310
Helix 72	72	O	10	15	Right-handed alpha
Helix 73	73	O	19	29	Right-handed alpha
Helix 74	74	O	64	70	Right-handed 310
Helix 75	75	O	77	95	Right-handed alpha
Helix 76	76	O	113	125	Right-handed alpha
Helix 77	77	O	132	136	Right-handed 310
Helix 78	78	O	139	144	Right-handed alpha
Helix 79	79	O	144	153	Right-handed alpha
Helix 80	80	O	168	180	Right-handed alpha
Helix 81	81	P	4	21	Right-handed alpha
Helix 82	82	P	24	35	Right-handed alpha
Helix 83	83	P	36	40	Right-handed 310
Helix 84	84	P	45	52	Right-handed alpha
Helix 85	85	P	82	93	Right-handed alpha
Helix 86	86	P	98	105	Right-handed alpha
Helix 87	87	Q	3	14	Right-handed alpha
Helix 88	88	Q	17	19	Right-handed 310
Helix 89	89	Q	27	34	Right-handed alpha
Helix 90	90	Q	36	46	Right-handed alpha
Helix 91	91	Q	59	71	Right-handed alpha
Helix 92	92	Q	76	80	Right-handed 310
Helix 93	93	Q	83	88	Right-handed alpha
Helix 94	94	Q	89	111	Right-handed alpha
Helix 95	95	Q	115	128	Right-handed alpha
Helix 96	96	Q	133	142	Right-handed alpha
Helix 97	97	R	17	21	Right-handed 310
Helix 98	98	R	26	31	Right-handed alpha
Helix 99	99	R	53	57	Right-handed 310
Helix 100	100	R	87	89	Right-handed 310
Helix 101	101	S	24	36	Right-handed alpha
Helix 102	102	S	39	53	Right-handed alpha
Helix 103	103	S	81	101	Right-handed alpha
Helix 104	104	T	11	22	Right-handed alpha
Helix 105	105	T	33	46	Right-handed alpha
Helix 106	106	T	73	80	Right-handed alpha
Helix 107	107	U	3	13	Right-handed alpha
Helix 108	108	U	15	22	Right-handed 310
Helix 109	109	U	28	36	Right-handed alpha
Helix 110	110	U	92	94	Right-handed 310
Helix 111	111	U	105	114	Right-handed alpha
Helix 112	112	V	33	42	Right-handed alpha
Helix 113	113	V	45	49	Right-handed 310
Helix 114	114	W	4	10	Right-handed alpha
Helix 115	115	W	12	36	Right-handed alpha
Helix 116	116	W	43	64	Right-handed alpha
Helix 117	117	X	14	24	Right-handed alpha
Helix 118	118	X	38	49	Right-handed alpha
Helix 119	119	X	58	70	Right-handed alpha
Helix 120	120	X	80	88	Right-handed alpha
Helix 121	121	X	92	102	Right-handed alpha
Helix 122	122	X	131	135	Right-handed 310
Helix 123	123	X	142	153	Right-handed alpha
Helix 124	124	Y	15	20	Right-handed 310
Helix 125	125	Y	21	23	Right-handed 310
Helix 126	126	Y	24	41	Right-handed alpha
Helix 127	127	Y	51	60	Right-handed alpha
Helix 128	128	Z	110	124	Right-handed alpha
Helix 129	129	Z	165	169	Right-handed 310
Helix 130	130	Z	190	194	Right-handed 310
Helix 131	131	Z	210	224	Right-handed alpha
Helix 132	132	1	10	15	Right-handed 310
Helix 133	133	1	19	35	Right-handed alpha
Helix 134	134	1	73	82	Right-handed alpha
Helix 135	135	2	4	9	Right-handed 310
Helix 136	136	2	48	52	Right-handed 310
Helix 137	137	3	4	18	Right-handed alpha
Helix 138	138	3	22	29	Right-handed alpha
Helix 139	139	4	34	44	Right-handed alpha
Helix 140	140	4	49	54	Right-handed 310

There are 47 sheets in PDB entry 1K9M. 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,

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	C	65	68	first strand
Strand 2	C	54	60	anti-parallel
Strand 3	C	39	47	anti-parallel
Strand 4	C	79	81	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	93	95	first strand
Strand 2	C	153	156	anti-parallel
Strand 3	C	104	106	anti-parallel
Strand 4	C	126	130	anti-parallel
Strand 5	C	136	139	anti-parallel
Strand 6	C	145	148	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	214	215	first strand
Strand 2	C	227	228	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	37	38	first strand
Strand 2	D	161	167	anti-parallel
Strand 3	D	137	145	anti-parallel
Strand 4	D	79	90	anti-parallel
Strand 5	D	93	101	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	37	38	first strand
Strand 2	D	161	167	anti-parallel
Strand 3	D	137	145	anti-parallel
Strand 4	D	79	90	anti-parallel
Strand 5	D	187	188	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	327	330	first strand
Strand 2	D	41	53	anti-parallel
Strand 3	D	308	313	anti-parallel
Strand 4	D	199	205	anti-parallel
Strand 5	D	261	275	anti-parallel
Strand 6	D	292	298	anti-parallel
Strand 7	D	68	75	anti-parallel
Strand 8	D	41	53	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	211	212	first strand
Strand 2	D	255	256	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	12	17	first strand
Strand 2	E	2	6	anti-parallel
Strand 3	E	138	140	parallel
Strand 4	E	233	236	parallel
Strand 5	E	193	196	parallel
Strand 6	E	211	214	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	59	60	first strand
Strand 2	E	71	73	anti-parallel
Strand 3	E	76	77	anti-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	E	173	174	first strand
Strand 2	E	186	187	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	F	74	75	first strand
Strand 2	F	17	24	anti-parallel
Strand 3	F	129	135	anti-parallel
Strand 4	F	104	106	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	F	50	51	first strand
Strand 2	F	71	72	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	2	6	first strand
Strand 2	G	46	51	anti-parallel
Strand 3	G	38	43	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	G	12	16	first strand
Strand 2	G	19	24	anti-parallel
Strand 3	G	27	32	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	G	123	127	first strand
Strand 2	G	130	135	anti-parallel
Strand 3	G	80	87	anti-parallel
Strand 4	G	165	170	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	G	94	98	first strand
Strand 2	G	101	105	anti-parallel
Strand 3	G	114	117	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	29	31	first strand
Strand 2	H	95	98	anti-parallel
Strand 3	H	48	51	anti-parallel
Strand 4	H	74	77	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	J	32	34	first strand
Strand 2	J	82	85	anti-parallel
Strand 3	J	130	136	anti-parallel
Strand 4	J	44	50	anti-parallel
Strand 5	J	157	161	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	54	57	first strand
Strand 2	J	117	125	anti-parallel
Strand 3	J	91	95	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	10	13	first strand
Strand 2	K	36	39	parallel
Strand 3	K	101	103	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	K	45	47	first strand
Strand 2	K	129	131	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	7	8	first strand
Strand 2	L	80	81	anti-parallel
Strand 3	L	87	90	anti-parallel
Strand 4	V	19	22	parallel
Strand 5	V	28	31	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	12	13	first strand
Strand 2	L	46	47	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	17	20	first strand
Strand 2	L	26	34	anti-parallel
Strand 3	L	52	60	anti-parallel
Strand 4	L	68	75	anti-parallel
Strand 5	L	94	98	anti-parallel
Strand 6	L	17	20	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	112	114	first strand
Strand 2	L	130	132	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	61	65	first strand
Strand 2	M	105	109	parallel
Strand 3	M	124	125	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	90	92	first strand
Strand 2	M	119	122	parallel
Strand 3	M	139	142	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	N	37	39	first strand
Strand 2	N	60	68	anti-parallel
Strand 3	N	126	134	anti-parallel
Strand 4	N	113	122	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	56	62	first strand
Strand 2	O	43	49	anti-parallel
Strand 3	O	33	38	anti-parallel
Strand 4	O	101	103	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	41	44	first strand
Strand 2	P	57	65	parallel
Strand 3	P	75	81	parallel
Strand 4	P	94	97	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	41	44	first strand
Strand 2	P	57	65	parallel
Strand 3	P	111	113	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	Q	21	23	first strand
Strand 2	Q	49	51	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	80	86	first strand
Strand 2	R	70	77	anti-parallel
Strand 3	R	60	67	anti-parallel
Strand 4	R	38	41	anti-parallel
Strand 5	R	91	93	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	13	21	first strand
Strand 2	S	138	148	anti-parallel
Strand 3	S	110	122	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	S	57	58	first strand
Strand 2	S	78	79	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	S	125	127	first strand
Strand 2	S	133	135	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	T	5	8	first strand
Strand 2	T	23	28	anti-parallel
Strand 3	T	62	68	anti-parallel
Strand 4	T	49	56	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	39	41	first strand
Strand 2	U	24	27	anti-parallel
Strand 3	U	96	100	parallel
Strand 4	U	47	50	anti-parallel
Strand 5	U	59	66	anti-parallel
Strand 6	U	71	74	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	78	80	first strand
Strand 2	U	86	88	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	X	116	117	first strand
Strand 2	X	31	35	anti-parallel
Strand 3	X	2	6	anti-parallel
Strand 4	X	52	55	anti-parallel
Strand 5	X	139	140	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Y	8	13	first strand
Strand 2	Y	69	77	anti-parallel
Strand 3	Y	82	86	anti-parallel
Strand 4	Y	48	50	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Z	96	99	first strand
Strand 2	Z	233	236	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Z	183	187	first strand
Strand 2	Z	201	205	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	1	47	51	first strand
Strand 2	1	54	57	anti-parallel
Strand 3	1	63	65	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	2	16	18	first strand
Strand 2	2	25	28	anti-parallel
Strand 3	2	33	34	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	4	2	4	first strand
Strand 2	4	89	91	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	4	6	11	first strand
Strand 2	4	16	24	anti-parallel
Strand 3	4	67	71	anti-parallel
Strand 4	4	77	78	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: 1K9M

Analysis of interatomic Contacts of Structural Units in PDB entry:
1K9M