Analysis of interatomic Contacts of Structural Units in PDB entry:
2XQ1

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 2XQ1 entry

There are 16 chains in PDB entry 2XQ1 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 4	LYS 500
B	ALA 2	ALA 501
C	PRO 4	ALA 501
D	ALA 2	ALA 501
E	PRO 5	ALA 501
F	ALA 2	ALA 501
G	PRO 4	ALA 501
H	VAL 6	ALA 501
I	PRO 4	LYS 500
J	ALA 2	LYS 500
K	PRO 4	ALA 501
L	VAL 6	ALA 501
M	PRO 4	ALA 501
N	ALA 2	LYS 500
O	PRO 4	ALA 501
P	PRO 4	ALA 501

There are299 helices in PDB entry 2XQ1. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	44	55	Right-handed alpha
Helix 2	2	A	87	91	Right-handed 310
Helix 3	3	A	147	149	Right-handed 310
Helix 4	4	A	150	159	Right-handed alpha
Helix 5	5	A	168	179	Right-handed alpha
Helix 6	6	A	182	191	Right-handed alpha
Helix 7	7	A	192	195	Right-handed 310
Helix 8	8	A	236	247	Right-handed alpha
Helix 9	9	A	249	262	Right-handed alpha
Helix 10	10	A	275	280	Right-handed alpha
Helix 11	11	A	314	319	Right-handed alpha
Helix 12	12	A	338	356	Right-handed alpha
Helix 13	13	A	359	367	Right-handed 310
Helix 14	14	A	432	435	Right-handed 310
Helix 15	15	A	436	446	Right-handed alpha
Helix 16	16	A	451	465	Right-handed alpha
Helix 17	17	A	468	480	Right-handed alpha
Helix 18	18	A	483	500	Right-handed alpha
Helix 19	19	B	44	55	Right-handed alpha
Helix 20	20	B	87	91	Right-handed 310
Helix 21	21	B	147	149	Right-handed 310
Helix 22	22	B	150	159	Right-handed alpha
Helix 23	23	B	168	179	Right-handed alpha
Helix 24	24	B	182	191	Right-handed alpha
Helix 25	25	B	192	195	Right-handed 310
Helix 26	26	B	198	202	Right-handed 310
Helix 27	27	B	236	247	Right-handed alpha
Helix 28	28	B	249	262	Right-handed alpha
Helix 29	29	B	275	280	Right-handed alpha
Helix 30	30	B	314	319	Right-handed alpha
Helix 31	31	B	338	356	Right-handed alpha
Helix 32	32	B	359	367	Right-handed 310
Helix 33	33	B	432	435	Right-handed 310
Helix 34	34	B	436	446	Right-handed alpha
Helix 35	35	B	451	465	Right-handed alpha
Helix 36	36	B	468	480	Right-handed alpha
Helix 37	37	B	483	498	Right-handed alpha
Helix 38	38	C	44	55	Right-handed alpha
Helix 39	39	C	87	91	Right-handed 310
Helix 40	40	C	147	149	Right-handed 310
Helix 41	41	C	150	159	Right-handed alpha
Helix 42	42	C	168	179	Right-handed alpha
Helix 43	43	C	182	191	Right-handed alpha
Helix 44	44	C	192	195	Right-handed 310
Helix 45	45	C	236	247	Right-handed alpha
Helix 46	46	C	249	262	Right-handed alpha
Helix 47	47	C	275	280	Right-handed alpha
Helix 48	48	C	314	319	Right-handed alpha
Helix 49	49	C	338	356	Right-handed alpha
Helix 50	50	C	359	367	Right-handed 310
Helix 51	51	C	386	390	Right-handed 310
Helix 52	52	C	432	435	Right-handed 310
Helix 53	53	C	436	446	Right-handed alpha
Helix 54	54	C	451	465	Right-handed alpha
Helix 55	55	C	468	480	Right-handed alpha
Helix 56	56	C	483	500	Right-handed alpha
Helix 57	57	D	44	55	Right-handed alpha
Helix 58	58	D	87	91	Right-handed 310
Helix 59	59	D	147	149	Right-handed 310
Helix 60	60	D	150	159	Right-handed alpha
Helix 61	61	D	168	179	Right-handed alpha
Helix 62	62	D	182	191	Right-handed alpha
Helix 63	63	D	192	195	Right-handed 310
Helix 64	64	D	198	202	Right-handed 310
Helix 65	65	D	236	247	Right-handed alpha
Helix 66	66	D	249	262	Right-handed alpha
Helix 67	67	D	275	280	Right-handed alpha
Helix 68	68	D	314	319	Right-handed alpha
Helix 69	69	D	338	356	Right-handed alpha
Helix 70	70	D	359	367	Right-handed 310
Helix 71	71	D	432	435	Right-handed 310
Helix 72	72	D	436	446	Right-handed alpha
Helix 73	73	D	451	465	Right-handed alpha
Helix 74	74	D	468	481	Right-handed alpha
Helix 75	75	D	483	500	Right-handed alpha
Helix 76	76	E	44	55	Right-handed alpha
Helix 77	77	E	87	91	Right-handed 310
Helix 78	78	E	147	149	Right-handed 310
Helix 79	79	E	150	159	Right-handed alpha
Helix 80	80	E	168	179	Right-handed alpha
Helix 81	81	E	182	191	Right-handed alpha
Helix 82	82	E	192	195	Right-handed 310
Helix 83	83	E	198	202	Right-handed 310
Helix 84	84	E	236	247	Right-handed alpha
Helix 85	85	E	249	262	Right-handed alpha
Helix 86	86	E	275	280	Right-handed alpha
Helix 87	87	E	314	319	Right-handed alpha
Helix 88	88	E	338	356	Right-handed alpha
Helix 89	89	E	359	367	Right-handed 310
Helix 90	90	E	432	435	Right-handed 310
Helix 91	91	E	436	446	Right-handed alpha
Helix 92	92	E	451	465	Right-handed alpha
Helix 93	93	E	468	480	Right-handed alpha
Helix 94	94	E	483	500	Right-handed alpha
Helix 95	95	F	44	55	Right-handed alpha
Helix 96	96	F	87	91	Right-handed 310
Helix 97	97	F	147	149	Right-handed 310
Helix 98	98	F	150	159	Right-handed alpha
Helix 99	99	F	168	179	Right-handed alpha
Helix 100	100	F	182	191	Right-handed alpha
Helix 101	101	F	192	195	Right-handed 310
Helix 102	102	F	198	202	Right-handed 310
Helix 103	103	F	236	247	Right-handed alpha
Helix 104	104	F	249	262	Right-handed alpha
Helix 105	105	F	275	280	Right-handed alpha
Helix 106	106	F	314	319	Right-handed alpha
Helix 107	107	F	338	356	Right-handed alpha
Helix 108	108	F	359	367	Right-handed 310
Helix 109	109	F	432	435	Right-handed 310
Helix 110	110	F	436	446	Right-handed alpha
Helix 111	111	F	451	465	Right-handed alpha
Helix 112	112	F	468	480	Right-handed alpha
Helix 113	113	F	483	500	Right-handed alpha
Helix 114	114	G	44	55	Right-handed alpha
Helix 115	115	G	87	91	Right-handed 310
Helix 116	116	G	147	149	Right-handed 310
Helix 117	117	G	150	159	Right-handed alpha
Helix 118	118	G	168	179	Right-handed alpha
Helix 119	119	G	182	191	Right-handed alpha
Helix 120	120	G	192	195	Right-handed 310
Helix 121	121	G	198	202	Right-handed 310
Helix 122	122	G	236	247	Right-handed alpha
Helix 123	123	G	249	262	Right-handed alpha
Helix 124	124	G	275	280	Right-handed alpha
Helix 125	125	G	314	319	Right-handed alpha
Helix 126	126	G	338	356	Right-handed alpha
Helix 127	127	G	359	367	Right-handed 310
Helix 128	128	G	432	435	Right-handed 310
Helix 129	129	G	436	446	Right-handed alpha
Helix 130	130	G	451	465	Right-handed alpha
Helix 131	131	G	468	480	Right-handed alpha
Helix 132	132	G	483	500	Right-handed alpha
Helix 133	133	H	44	55	Right-handed alpha
Helix 134	134	H	87	91	Right-handed 310
Helix 135	135	H	147	149	Right-handed 310
Helix 136	136	H	150	159	Right-handed alpha
Helix 137	137	H	168	179	Right-handed alpha
Helix 138	138	H	182	191	Right-handed alpha
Helix 139	139	H	192	195	Right-handed 310
Helix 140	140	H	198	202	Right-handed 310
Helix 141	141	H	236	247	Right-handed alpha
Helix 142	142	H	249	262	Right-handed alpha
Helix 143	143	H	275	281	Right-handed alpha
Helix 144	144	H	314	319	Right-handed alpha
Helix 145	145	H	338	356	Right-handed alpha
Helix 146	146	H	359	367	Right-handed 310
Helix 147	147	H	432	435	Right-handed 310
Helix 148	148	H	436	446	Right-handed alpha
Helix 149	149	H	451	465	Right-handed alpha
Helix 150	150	H	468	480	Right-handed alpha
Helix 151	151	H	483	500	Right-handed alpha
Helix 152	152	I	44	55	Right-handed alpha
Helix 153	153	I	87	91	Right-handed 310
Helix 154	154	I	147	149	Right-handed 310
Helix 155	155	I	150	159	Right-handed alpha
Helix 156	156	I	168	179	Right-handed alpha
Helix 157	157	I	182	191	Right-handed alpha
Helix 158	158	I	192	195	Right-handed 310
Helix 159	159	I	198	202	Right-handed 310
Helix 160	160	I	236	247	Right-handed alpha
Helix 161	161	I	249	262	Right-handed alpha
Helix 162	162	I	275	280	Right-handed alpha
Helix 163	163	I	314	319	Right-handed alpha
Helix 164	164	I	338	356	Right-handed alpha
Helix 165	165	I	359	367	Right-handed 310
Helix 166	166	I	433	446	Right-handed alpha
Helix 167	167	I	451	465	Right-handed alpha
Helix 168	168	I	468	480	Right-handed alpha
Helix 169	169	I	483	500	Right-handed alpha
Helix 170	170	J	44	55	Right-handed alpha
Helix 171	171	J	87	91	Right-handed 310
Helix 172	172	J	147	149	Right-handed 310
Helix 173	173	J	150	159	Right-handed alpha
Helix 174	174	J	168	179	Right-handed alpha
Helix 175	175	J	182	191	Right-handed alpha
Helix 176	176	J	192	195	Right-handed 310
Helix 177	177	J	198	202	Right-handed 310
Helix 178	178	J	236	247	Right-handed alpha
Helix 179	179	J	249	262	Right-handed alpha
Helix 180	180	J	275	281	Right-handed alpha
Helix 181	181	J	314	319	Right-handed alpha
Helix 182	182	J	338	356	Right-handed alpha
Helix 183	183	J	359	367	Right-handed 310
Helix 184	184	J	432	435	Right-handed 310
Helix 185	185	J	436	446	Right-handed alpha
Helix 186	186	J	451	465	Right-handed alpha
Helix 187	187	J	468	480	Right-handed alpha
Helix 188	188	J	483	500	Right-handed alpha
Helix 189	189	K	44	56	Right-handed alpha
Helix 190	190	K	87	91	Right-handed 310
Helix 191	191	K	147	149	Right-handed 310
Helix 192	192	K	150	159	Right-handed alpha
Helix 193	193	K	168	179	Right-handed alpha
Helix 194	194	K	182	191	Right-handed alpha
Helix 195	195	K	192	195	Right-handed 310
Helix 196	196	K	198	202	Right-handed 310
Helix 197	197	K	236	247	Right-handed alpha
Helix 198	198	K	249	262	Right-handed alpha
Helix 199	199	K	275	280	Right-handed alpha
Helix 200	200	K	314	319	Right-handed alpha
Helix 201	201	K	338	356	Right-handed alpha
Helix 202	202	K	359	367	Right-handed 310
Helix 203	203	K	432	435	Right-handed 310
Helix 204	204	K	436	446	Right-handed alpha
Helix 205	205	K	451	465	Right-handed alpha
Helix 206	206	K	468	480	Right-handed alpha
Helix 207	207	K	483	500	Right-handed alpha
Helix 208	208	L	44	55	Right-handed alpha
Helix 209	209	L	87	91	Right-handed 310
Helix 210	210	L	147	149	Right-handed 310
Helix 211	211	L	150	159	Right-handed alpha
Helix 212	212	L	168	179	Right-handed alpha
Helix 213	213	L	182	191	Right-handed alpha
Helix 214	214	L	192	195	Right-handed 310
Helix 215	215	L	198	202	Right-handed 310
Helix 216	216	L	236	247	Right-handed alpha
Helix 217	217	L	249	262	Right-handed alpha
Helix 218	218	L	275	280	Right-handed alpha
Helix 219	219	L	314	319	Right-handed alpha
Helix 220	220	L	338	356	Right-handed alpha
Helix 221	221	L	359	367	Right-handed 310
Helix 222	222	L	433	446	Right-handed alpha
Helix 223	223	L	451	465	Right-handed alpha
Helix 224	224	L	468	481	Right-handed alpha
Helix 225	225	L	483	500	Right-handed alpha
Helix 226	226	M	44	55	Right-handed alpha
Helix 227	227	M	87	91	Right-handed 310
Helix 228	228	M	147	149	Right-handed 310
Helix 229	229	M	150	158	Right-handed alpha
Helix 230	230	M	168	179	Right-handed alpha
Helix 231	231	M	182	191	Right-handed alpha
Helix 232	232	M	192	195	Right-handed 310
Helix 233	233	M	198	202	Right-handed 310
Helix 234	234	M	236	247	Right-handed alpha
Helix 235	235	M	249	262	Right-handed alpha
Helix 236	236	M	275	280	Right-handed alpha
Helix 237	237	M	314	319	Right-handed alpha
Helix 238	238	M	338	356	Right-handed alpha
Helix 239	239	M	359	367	Right-handed 310
Helix 240	240	M	432	435	Right-handed 310
Helix 241	241	M	436	446	Right-handed alpha
Helix 242	242	M	451	465	Right-handed alpha
Helix 243	243	M	468	480	Right-handed alpha
Helix 244	244	M	483	500	Right-handed alpha
Helix 245	245	N	44	55	Right-handed alpha
Helix 246	246	N	87	91	Right-handed 310
Helix 247	247	N	147	149	Right-handed 310
Helix 248	248	N	150	159	Right-handed alpha
Helix 249	249	N	168	179	Right-handed alpha
Helix 250	250	N	182	191	Right-handed alpha
Helix 251	251	N	192	195	Right-handed 310
Helix 252	252	N	198	202	Right-handed 310
Helix 253	253	N	236	247	Right-handed alpha
Helix 254	254	N	249	262	Right-handed alpha
Helix 255	255	N	275	281	Right-handed alpha
Helix 256	256	N	314	319	Right-handed alpha
Helix 257	257	N	338	356	Right-handed alpha
Helix 258	258	N	359	367	Right-handed 310
Helix 259	259	N	432	435	Right-handed 310
Helix 260	260	N	436	446	Right-handed alpha
Helix 261	261	N	451	465	Right-handed alpha
Helix 262	262	N	468	480	Right-handed alpha
Helix 263	263	N	483	499	Right-handed alpha
Helix 264	264	O	44	55	Right-handed alpha
Helix 265	265	O	87	91	Right-handed 310
Helix 266	266	O	147	149	Right-handed 310
Helix 267	267	O	150	159	Right-handed alpha
Helix 268	268	O	168	179	Right-handed alpha
Helix 269	269	O	182	191	Right-handed alpha
Helix 270	270	O	192	195	Right-handed 310
Helix 271	271	O	236	247	Right-handed alpha
Helix 272	272	O	249	262	Right-handed alpha
Helix 273	273	O	275	280	Right-handed alpha
Helix 274	274	O	314	319	Right-handed alpha
Helix 275	275	O	338	356	Right-handed alpha
Helix 276	276	O	359	367	Right-handed 310
Helix 277	277	O	432	435	Right-handed 310
Helix 278	278	O	436	446	Right-handed alpha
Helix 279	279	O	451	465	Right-handed alpha
Helix 280	280	O	468	480	Right-handed alpha
Helix 281	281	O	483	499	Right-handed alpha
Helix 282	282	P	44	55	Right-handed alpha
Helix 283	283	P	87	91	Right-handed 310
Helix 284	284	P	147	149	Right-handed 310
Helix 285	285	P	150	159	Right-handed alpha
Helix 286	286	P	168	179	Right-handed alpha
Helix 287	287	P	182	191	Right-handed alpha
Helix 288	288	P	192	195	Right-handed 310
Helix 289	289	P	236	247	Right-handed alpha
Helix 290	290	P	249	262	Right-handed alpha
Helix 291	291	P	275	280	Right-handed alpha
Helix 292	292	P	314	319	Right-handed alpha
Helix 293	293	P	338	356	Right-handed alpha
Helix 294	294	P	359	367	Right-handed 310
Helix 295	295	P	432	435	Right-handed 310
Helix 296	296	P	436	446	Right-handed alpha
Helix 297	297	P	451	465	Right-handed alpha
Helix 298	298	P	468	481	Right-handed alpha
Helix 299	299	P	483	500	Right-handed alpha

There are 40 sheets in PDB entry 2XQ1. 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,

There are 2 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	21	23	first strand
Strand 2	D	425	427	anti-parallel

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There are 11 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	333	335	first strand
Strand 2	A	210	213	anti-parallel
Strand 3	A	219	228	anti-parallel
Strand 4	A	266	274	anti-parallel
Strand 5	A	301	310	anti-parallel
Strand 6	A	68	77	anti-parallel
Strand 7	A	96	104	anti-parallel
Strand 8	A	121	128	anti-parallel
Strand 9	A	131	138	anti-parallel
Strand 10	A	204	205	anti-parallel
Strand 11	A	219	228	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	A	420	422	first strand
Strand 2	C	420	422	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	425	427	first strand
Strand 2	D	21	23	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	21	23	first strand
Strand 2	C	425	427	anti-parallel

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There are 11 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	333	335	first strand
Strand 2	B	210	213	anti-parallel
Strand 3	B	219	228	anti-parallel
Strand 4	B	266	274	anti-parallel
Strand 5	B	301	310	anti-parallel
Strand 6	B	68	77	anti-parallel
Strand 7	B	96	104	anti-parallel
Strand 8	B	121	128	anti-parallel
Strand 9	B	131	138	anti-parallel
Strand 10	B	204	205	anti-parallel
Strand 11	B	219	228	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	B	420	422	first strand
Strand 2	D	420	422	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	B	425	427	first strand
Strand 2	C	21	23	anti-parallel

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There are 11 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	333	335	first strand
Strand 2	C	210	213	anti-parallel
Strand 3	C	219	228	anti-parallel
Strand 4	C	266	274	anti-parallel
Strand 5	C	301	310	anti-parallel
Strand 6	C	68	77	anti-parallel
Strand 7	C	96	104	anti-parallel
Strand 8	C	121	128	anti-parallel
Strand 9	C	131	138	anti-parallel
Strand 10	C	204	205	anti-parallel
Strand 11	C	219	228	anti-parallel

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There are 11 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	333	335	first strand
Strand 2	D	210	213	anti-parallel
Strand 3	D	219	228	anti-parallel
Strand 4	D	266	274	anti-parallel
Strand 5	D	301	310	anti-parallel
Strand 6	D	68	77	anti-parallel
Strand 7	D	96	104	anti-parallel
Strand 8	D	121	128	anti-parallel
Strand 9	D	131	138	anti-parallel
Strand 10	D	204	205	anti-parallel
Strand 11	D	219	228	anti-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	E	21	23	first strand
Strand 2	H	425	427	anti-parallel

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There are 11 strands in L sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	333	335	first strand
Strand 2	E	210	213	anti-parallel
Strand 3	E	219	228	anti-parallel
Strand 4	E	266	274	anti-parallel
Strand 5	E	301	310	anti-parallel
Strand 6	E	68	77	anti-parallel
Strand 7	E	96	104	anti-parallel
Strand 8	E	121	128	anti-parallel
Strand 9	E	131	138	anti-parallel
Strand 10	E	204	205	anti-parallel
Strand 11	E	219	228	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	420	422	first strand
Strand 2	G	420	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	425	427	first strand
Strand 2	H	21	23	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	21	23	first strand
Strand 2	G	425	427	anti-parallel

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There are 11 strands in P sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	333	335	first strand
Strand 2	F	210	213	anti-parallel
Strand 3	F	219	228	anti-parallel
Strand 4	F	266	274	anti-parallel
Strand 5	F	301	310	anti-parallel
Strand 6	F	68	77	anti-parallel
Strand 7	F	96	104	anti-parallel
Strand 8	F	121	128	anti-parallel
Strand 9	F	131	138	anti-parallel
Strand 10	F	204	205	anti-parallel
Strand 11	F	219	228	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	420	422	first strand
Strand 2	H	420	422	anti-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	F	425	427	first strand
Strand 2	G	21	23	anti-parallel

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There are 11 strands in S sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	333	335	first strand
Strand 2	G	210	213	anti-parallel
Strand 3	G	219	228	anti-parallel
Strand 4	G	266	274	anti-parallel
Strand 5	G	301	310	anti-parallel
Strand 6	G	68	77	anti-parallel
Strand 7	G	96	104	anti-parallel
Strand 8	G	121	128	anti-parallel
Strand 9	G	131	138	anti-parallel
Strand 10	G	204	205	anti-parallel
Strand 11	G	219	228	anti-parallel

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There are 11 strands in T sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	333	335	first strand
Strand 2	H	210	213	anti-parallel
Strand 3	H	219	228	anti-parallel
Strand 4	H	266	274	anti-parallel
Strand 5	H	301	310	anti-parallel
Strand 6	H	68	77	anti-parallel
Strand 7	H	96	104	anti-parallel
Strand 8	H	121	128	anti-parallel
Strand 9	H	131	138	anti-parallel
Strand 10	H	204	205	anti-parallel
Strand 11	H	219	228	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	I	21	23	first strand
Strand 2	L	425	427	anti-parallel

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There are 11 strands in V sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	333	335	first strand
Strand 2	I	210	213	anti-parallel
Strand 3	I	219	228	anti-parallel
Strand 4	I	266	274	anti-parallel
Strand 5	I	301	310	anti-parallel
Strand 6	I	68	77	anti-parallel
Strand 7	I	96	104	anti-parallel
Strand 8	I	121	128	anti-parallel
Strand 9	I	131	138	anti-parallel
Strand 10	I	204	205	anti-parallel
Strand 11	I	219	228	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	I	420	422	first strand
Strand 2	K	420	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	425	427	first strand
Strand 2	L	21	23	anti-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	J	21	23	first strand
Strand 2	K	425	427	anti-parallel

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There are 11 strands in Z sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	333	335	first strand
Strand 2	J	210	213	anti-parallel
Strand 3	J	219	228	anti-parallel
Strand 4	J	266	274	anti-parallel
Strand 5	J	301	310	anti-parallel
Strand 6	J	68	77	anti-parallel
Strand 7	J	96	104	anti-parallel
Strand 8	J	121	128	anti-parallel
Strand 9	J	131	138	anti-parallel
Strand 10	J	204	205	anti-parallel
Strand 11	J	219	228	anti-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	J	420	422	first strand
Strand 2	L	420	422	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	J	425	427	first strand
Strand 2	K	21	23	anti-parallel

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There are 11 strands in AC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	333	335	first strand
Strand 2	K	210	213	anti-parallel
Strand 3	K	219	228	anti-parallel
Strand 4	K	266	274	anti-parallel
Strand 5	K	301	310	anti-parallel
Strand 6	K	68	77	anti-parallel
Strand 7	K	96	104	anti-parallel
Strand 8	K	121	128	anti-parallel
Strand 9	K	131	138	anti-parallel
Strand 10	K	204	205	anti-parallel
Strand 11	K	219	228	anti-parallel

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There are 11 strands in AD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	333	335	first strand
Strand 2	L	210	213	anti-parallel
Strand 3	L	219	228	anti-parallel
Strand 4	L	266	274	anti-parallel
Strand 5	L	301	310	anti-parallel
Strand 6	L	68	77	anti-parallel
Strand 7	L	96	104	anti-parallel
Strand 8	L	121	128	anti-parallel
Strand 9	L	131	138	anti-parallel
Strand 10	L	204	205	anti-parallel
Strand 11	L	219	228	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	21	23	first strand
Strand 2	P	425	427	anti-parallel

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There are 11 strands in AF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	333	335	first strand
Strand 2	M	210	213	anti-parallel
Strand 3	M	219	228	anti-parallel
Strand 4	M	266	274	anti-parallel
Strand 5	M	301	310	anti-parallel
Strand 6	M	68	77	anti-parallel
Strand 7	M	96	104	anti-parallel
Strand 8	M	121	128	anti-parallel
Strand 9	M	131	138	anti-parallel
Strand 10	M	204	205	anti-parallel
Strand 11	M	219	228	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	420	422	first strand
Strand 2	O	420	422	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	M	425	427	first strand
Strand 2	P	21	23	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	N	21	23	first strand
Strand 2	O	425	427	anti-parallel

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There are 11 strands in AJ sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	333	335	first strand
Strand 2	N	210	213	anti-parallel
Strand 3	N	219	228	anti-parallel
Strand 4	N	266	274	anti-parallel
Strand 5	N	301	310	anti-parallel
Strand 6	N	68	77	anti-parallel
Strand 7	N	96	104	anti-parallel
Strand 8	N	121	128	anti-parallel
Strand 9	N	131	138	anti-parallel
Strand 10	N	204	205	anti-parallel
Strand 11	N	219	228	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	420	422	first strand
Strand 2	P	420	422	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	425	427	first strand
Strand 2	O	21	23	anti-parallel

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There are 11 strands in AM sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	333	335	first strand
Strand 2	O	210	213	anti-parallel
Strand 3	O	219	228	anti-parallel
Strand 4	O	266	274	anti-parallel
Strand 5	O	301	310	anti-parallel
Strand 6	O	68	77	anti-parallel
Strand 7	O	96	105	anti-parallel
Strand 8	O	120	128	anti-parallel
Strand 9	O	131	138	anti-parallel
Strand 10	O	204	205	anti-parallel
Strand 11	O	219	228	anti-parallel

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There are 11 strands in AN sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	333	335	first strand
Strand 2	P	210	213	anti-parallel
Strand 3	P	219	228	anti-parallel
Strand 4	P	266	274	anti-parallel
Strand 5	P	301	310	anti-parallel
Strand 6	P	68	77	anti-parallel
Strand 7	P	96	104	anti-parallel
Strand 8	P	121	128	anti-parallel
Strand 9	P	131	138	anti-parallel
Strand 10	P	204	205	anti-parallel
Strand 11	P	219	228	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: 2XQ1

Analysis of interatomic Contacts of Structural Units in PDB entry:
2XQ1