Analysis of interatomic Contacts of Structural Units in PDB entry:
4AY1

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 4AY1 entry

There are 4 chains in PDB entry 4AY1 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 26	SER 389
B	ALA 26	SER 389
C	ALA 26	SER 389
D	ALA 26	SER 194

There are192 helices in PDB entry 4AY1. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	36	40	Right-handed 310
Helix 2	AA2	A	47	51	Right-handed 310
Helix 3	AA3	A	77	92	Right-handed alpha
Helix 4	AA4	A	108	112	Right-handed 310
Helix 5	AA5	A	113	116	Right-handed 310
Helix 6	AA6	A	117	135	Right-handed alpha
Helix 7	AA7	A	147	172	Right-handed alpha
Helix 8	AA8	A	187	195	Right-handed alpha
Helix 9	AA9	A	196	204	Right-handed alpha
Helix 10	AB1	A	237	243	Right-handed 310
Helix 11	AB2	A	244	255	Right-handed alpha
Helix 12	AB3	A	258	260	Right-handed 310
Helix 13	AB4	A	304	312	Right-handed alpha
Helix 14	AB5	A	338	352	Right-handed alpha
Helix 15	AB6	A	361	365	Right-handed 310
Helix 16	AB7	A	377	389	Right-handed alpha
Helix 17	AB8	B	36	40	Right-handed 310
Helix 18	AB9	B	47	51	Right-handed 310
Helix 19	AC1	B	77	92	Right-handed alpha
Helix 20	AC2	B	108	112	Right-handed 310
Helix 21	AC3	B	113	116	Right-handed 310
Helix 22	AC4	B	117	135	Right-handed alpha
Helix 23	AC5	B	147	172	Right-handed alpha
Helix 24	AC6	B	187	195	Right-handed alpha
Helix 25	AC7	B	196	204	Right-handed alpha
Helix 26	AC8	B	237	243	Right-handed 310
Helix 27	AC9	B	244	255	Right-handed alpha
Helix 28	AD1	B	258	260	Right-handed 310
Helix 29	AD2	B	304	311	Right-handed alpha
Helix 30	AD3	B	338	352	Right-handed alpha
Helix 31	AD4	B	361	365	Right-handed 310
Helix 32	AD5	B	377	388	Right-handed alpha
Helix 33	AD6	C	36	40	Right-handed 310
Helix 34	AD7	C	47	51	Right-handed 310
Helix 35	AD8	C	77	92	Right-handed alpha
Helix 36	AD9	C	108	112	Right-handed 310
Helix 37	AE1	C	113	116	Right-handed 310
Helix 38	AE2	C	117	135	Right-handed alpha
Helix 39	AE3	C	147	172	Right-handed alpha
Helix 40	AE4	C	187	195	Right-handed alpha
Helix 41	AE5	C	196	204	Right-handed alpha
Helix 42	AE6	C	237	243	Right-handed 310
Helix 43	AE7	C	244	256	Right-handed alpha
Helix 44	AE8	C	258	260	Right-handed 310
Helix 45	AE9	C	304	312	Right-handed alpha
Helix 46	AF1	C	338	352	Right-handed alpha
Helix 47	AF2	C	361	365	Right-handed 310
Helix 48	AF3	C	377	389	Right-handed alpha
Helix 49	AF4	D	36	40	Right-handed 310
Helix 50	AF5	D	47	51	Right-handed 310
Helix 51	AF6	D	77	92	Right-handed alpha
Helix 52	AF7	D	108	112	Right-handed 310
Helix 53	AF8	D	113	116	Right-handed 310
Helix 54	AF9	D	117	135	Right-handed alpha
Helix 55	AG1	D	147	173	Right-handed alpha
Helix 56	AG2	D	187	195	Right-handed alpha
Helix 57	AG3	D	196	204	Right-handed alpha
Helix 58	AG4	D	237	243	Right-handed 310
Helix 59	AG5	D	244	255	Right-handed alpha
Helix 60	AG6	D	258	260	Right-handed 310
Helix 61	AG7	D	304	311	Right-handed alpha
Helix 62	AG8	D	338	352	Right-handed alpha
Helix 63	AG9	D	361	365	Right-handed 310
Helix 64	AH1	D	377	388	Right-handed alpha
Helix 65	AH2	E	36	40	Right-handed 310
Helix 66	AH3	E	47	51	Right-handed 310
Helix 67	AH4	E	77	92	Right-handed alpha
Helix 68	AH5	E	108	112	Right-handed 310
Helix 69	AH6	E	113	116	Right-handed 310
Helix 70	AH7	E	117	135	Right-handed alpha
Helix 71	AH8	E	147	173	Right-handed alpha
Helix 72	AH9	E	187	195	Right-handed alpha
Helix 73	AI1	E	196	204	Right-handed alpha
Helix 74	AI2	E	237	243	Right-handed 310
Helix 75	AI3	E	244	255	Right-handed alpha
Helix 76	AI4	E	258	260	Right-handed 310
Helix 77	AI5	E	304	311	Right-handed alpha
Helix 78	AI6	E	338	352	Right-handed alpha
Helix 79	AI7	E	361	365	Right-handed 310
Helix 80	AI8	E	377	388	Right-handed alpha
Helix 81	AI9	F	36	40	Right-handed 310
Helix 82	AJ1	F	47	51	Right-handed 310
Helix 83	AJ2	F	77	92	Right-handed alpha
Helix 84	AJ3	F	108	112	Right-handed 310
Helix 85	AJ4	F	113	116	Right-handed 310
Helix 86	AJ5	F	117	135	Right-handed alpha
Helix 87	AJ6	F	147	172	Right-handed alpha
Helix 88	AJ7	F	187	195	Right-handed alpha
Helix 89	AJ8	F	196	204	Right-handed alpha
Helix 90	AJ9	F	237	243	Right-handed 310
Helix 91	AK1	F	244	255	Right-handed alpha
Helix 92	AK2	F	258	260	Right-handed 310
Helix 93	AK3	F	304	311	Right-handed alpha
Helix 94	AK4	F	338	352	Right-handed alpha
Helix 95	AK5	F	361	365	Right-handed 310
Helix 96	AK6	F	377	389	Right-handed alpha
Helix 97	AK7	G	36	40	Right-handed 310
Helix 98	AK8	G	47	51	Right-handed 310
Helix 99	AK9	G	77	92	Right-handed alpha
Helix 100	AL1	G	108	112	Right-handed 310
Helix 101	AL2	G	113	116	Right-handed 310
Helix 102	AL3	G	117	135	Right-handed alpha
Helix 103	AL4	G	147	171	Right-handed alpha
Helix 104	AL5	G	187	195	Right-handed alpha
Helix 105	AL6	G	196	204	Right-handed alpha
Helix 106	AL7	G	237	243	Right-handed 310
Helix 107	AL8	G	244	255	Right-handed alpha
Helix 108	AL9	G	258	260	Right-handed 310
Helix 109	AM1	G	304	311	Right-handed alpha
Helix 110	AM2	G	338	352	Right-handed alpha
Helix 111	AM3	G	361	365	Right-handed 310
Helix 112	AM4	G	377	389	Right-handed alpha
Helix 113	AM5	H	36	40	Right-handed 310
Helix 114	AM6	H	47	51	Right-handed 310
Helix 115	AM7	H	77	92	Right-handed alpha
Helix 116	AM8	H	108	112	Right-handed 310
Helix 117	AM9	H	113	116	Right-handed 310
Helix 118	AN1	H	117	135	Right-handed alpha
Helix 119	AN2	H	147	172	Right-handed alpha
Helix 120	AN3	H	187	195	Right-handed alpha
Helix 121	AN4	H	196	204	Right-handed alpha
Helix 122	AN5	H	237	243	Right-handed 310
Helix 123	AN6	H	244	255	Right-handed alpha
Helix 124	AN7	H	258	260	Right-handed 310
Helix 125	AN8	H	304	311	Right-handed alpha
Helix 126	AN9	H	338	352	Right-handed alpha
Helix 127	AO1	H	361	365	Right-handed 310
Helix 128	AO2	H	377	389	Right-handed alpha
Helix 129	AO3	I	36	40	Right-handed 310
Helix 130	AO4	I	47	51	Right-handed 310
Helix 131	AO5	I	77	92	Right-handed alpha
Helix 132	AO6	I	108	112	Right-handed 310
Helix 133	AO7	I	113	116	Right-handed 310
Helix 134	AO8	I	117	135	Right-handed alpha
Helix 135	AO9	I	147	172	Right-handed alpha
Helix 136	AP1	I	187	195	Right-handed alpha
Helix 137	AP2	I	196	204	Right-handed alpha
Helix 138	AP3	I	237	243	Right-handed 310
Helix 139	AP4	I	244	256	Right-handed alpha
Helix 140	AP5	I	258	260	Right-handed 310
Helix 141	AP6	I	304	311	Right-handed alpha
Helix 142	AP7	I	338	352	Right-handed alpha
Helix 143	AP8	I	361	365	Right-handed 310
Helix 144	AP9	I	377	389	Right-handed alpha
Helix 145	AQ1	J	36	40	Right-handed 310
Helix 146	AQ2	J	47	51	Right-handed 310
Helix 147	AQ3	J	77	92	Right-handed alpha
Helix 148	AQ4	J	108	112	Right-handed 310
Helix 149	AQ5	J	113	116	Right-handed 310
Helix 150	AQ6	J	117	135	Right-handed alpha
Helix 151	AQ7	J	147	173	Right-handed alpha
Helix 152	AQ8	J	187	195	Right-handed alpha
Helix 153	AQ9	J	196	204	Right-handed alpha
Helix 154	AR1	J	237	243	Right-handed 310
Helix 155	AR2	J	244	256	Right-handed alpha
Helix 156	AR3	J	258	260	Right-handed 310
Helix 157	AR4	J	304	311	Right-handed alpha
Helix 158	AR5	J	338	352	Right-handed alpha
Helix 159	AR6	J	361	365	Right-handed 310
Helix 160	AR7	J	377	389	Right-handed alpha
Helix 161	AR8	K	36	40	Right-handed 310
Helix 162	AR9	K	47	51	Right-handed 310
Helix 163	AS1	K	77	92	Right-handed alpha
Helix 164	AS2	K	108	112	Right-handed 310
Helix 165	AS3	K	113	116	Right-handed 310
Helix 166	AS4	K	117	135	Right-handed alpha
Helix 167	AS5	K	147	172	Right-handed alpha
Helix 168	AS6	K	187	195	Right-handed alpha
Helix 169	AS7	K	196	204	Right-handed alpha
Helix 170	AS8	K	237	243	Right-handed 310
Helix 171	AS9	K	244	255	Right-handed alpha
Helix 172	AT1	K	258	260	Right-handed 310
Helix 173	AT2	K	304	311	Right-handed alpha
Helix 174	AT3	K	338	352	Right-handed alpha
Helix 175	AT4	K	361	365	Right-handed 310
Helix 176	AT5	K	377	389	Right-handed alpha
Helix 177	AT6	L	36	40	Right-handed 310
Helix 178	AT7	L	47	51	Right-handed 310
Helix 179	AT8	L	77	92	Right-handed alpha
Helix 180	AT9	L	108	112	Right-handed 310
Helix 181	AU1	L	113	116	Right-handed 310
Helix 182	AU2	L	117	135	Right-handed alpha
Helix 183	AU3	L	147	173	Right-handed alpha
Helix 184	AU4	L	187	195	Right-handed alpha
Helix 185	AU5	L	196	204	Right-handed alpha
Helix 186	AU6	L	237	243	Right-handed 310
Helix 187	AU7	L	244	256	Right-handed alpha
Helix 188	AU8	L	258	260	Right-handed 310
Helix 189	AU9	L	304	311	Right-handed alpha
Helix 190	AV1	L	338	352	Right-handed alpha
Helix 191	AV2	L	361	365	Right-handed 310
Helix 192	AV3	L	377	388	Right-handed alpha

There are 36 sheets in PDB entry 4AY1. 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 10 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	70	72	first strand
Strand 2	A	58	67	anti-parallel
Strand 3	A	96	103	parallel
Strand 4	A	139	144	parallel
Strand 5	A	179	185	parallel
Strand 6	A	206	210	parallel
Strand 7	A	262	267	parallel
Strand 8	A	356	360	parallel
Strand 9	A	28	34	parallel
Strand 10	A	58	67	parallel

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There are 3 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	286	289	first strand
Strand 2	A	269	275	anti-parallel
Strand 3	A	301	303	anti-parallel

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There are 5 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	286	289	first strand
Strand 2	A	269	275	anti-parallel
Strand 3	A	332	335	anti-parallel
Strand 4	A	325	329	anti-parallel
Strand 5	A	315	318	anti-parallel

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There are 10 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	70	72	first strand
Strand 2	B	58	67	anti-parallel
Strand 3	B	96	103	parallel
Strand 4	B	139	144	parallel
Strand 5	B	179	185	parallel
Strand 6	B	206	210	parallel
Strand 7	B	262	267	parallel
Strand 8	B	356	360	parallel
Strand 9	B	28	34	parallel
Strand 10	B	58	67	parallel

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There are 3 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	286	289	first strand
Strand 2	B	269	275	anti-parallel
Strand 3	B	301	303	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	B	286	289	first strand
Strand 2	B	269	275	anti-parallel
Strand 3	B	332	335	anti-parallel
Strand 4	B	325	329	anti-parallel
Strand 5	B	315	318	anti-parallel

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There are 10 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	70	72	first strand
Strand 2	C	58	67	anti-parallel
Strand 3	C	96	102	parallel
Strand 4	C	139	143	parallel
Strand 5	C	179	185	parallel
Strand 6	C	206	210	parallel
Strand 7	C	262	267	parallel
Strand 8	C	356	360	parallel
Strand 9	C	28	34	parallel
Strand 10	C	58	67	parallel

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There are 3 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	286	289	first strand
Strand 2	C	269	275	anti-parallel
Strand 3	C	301	303	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	C	286	289	first strand
Strand 2	C	269	275	anti-parallel
Strand 3	C	332	335	anti-parallel
Strand 4	C	325	329	anti-parallel
Strand 5	C	315	318	anti-parallel

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There are 10 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	70	72	first strand
Strand 2	D	58	67	anti-parallel
Strand 3	D	96	103	parallel
Strand 4	D	139	144	parallel
Strand 5	D	179	185	parallel
Strand 6	D	206	210	parallel
Strand 7	D	262	267	parallel
Strand 8	D	356	360	parallel
Strand 9	D	28	34	parallel
Strand 10	D	58	67	parallel

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There are 3 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	286	289	first strand
Strand 2	D	269	275	anti-parallel
Strand 3	D	301	303	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	D	286	289	first strand
Strand 2	D	269	275	anti-parallel
Strand 3	D	332	335	anti-parallel
Strand 4	D	325	329	anti-parallel
Strand 5	D	315	318	anti-parallel

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There are 10 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	70	72	first strand
Strand 2	E	58	67	anti-parallel
Strand 3	E	96	103	parallel
Strand 4	E	139	144	parallel
Strand 5	E	179	185	parallel
Strand 6	E	206	210	parallel
Strand 7	E	262	267	parallel
Strand 8	E	356	360	parallel
Strand 9	E	28	34	parallel
Strand 10	E	58	67	parallel

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There are 3 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	286	289	first strand
Strand 2	E	269	275	anti-parallel
Strand 3	E	301	303	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	E	286	289	first strand
Strand 2	E	269	275	anti-parallel
Strand 3	E	332	335	anti-parallel
Strand 4	E	325	329	anti-parallel
Strand 5	E	315	318	anti-parallel

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There are 10 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	70	72	first strand
Strand 2	F	58	67	anti-parallel
Strand 3	F	96	103	parallel
Strand 4	F	139	144	parallel
Strand 5	F	179	185	parallel
Strand 6	F	206	210	parallel
Strand 7	F	262	267	parallel
Strand 8	F	356	360	parallel
Strand 9	F	28	34	parallel
Strand 10	F	58	67	parallel

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There are 3 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	286	289	first strand
Strand 2	F	269	275	anti-parallel
Strand 3	F	301	303	anti-parallel

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There are 5 strands in AB9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	286	289	first strand
Strand 2	F	269	275	anti-parallel
Strand 3	F	332	335	anti-parallel
Strand 4	F	324	329	anti-parallel
Strand 5	F	315	319	anti-parallel

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There are 10 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	70	72	first strand
Strand 2	G	58	67	anti-parallel
Strand 3	G	96	102	parallel
Strand 4	G	139	143	parallel
Strand 5	G	179	185	parallel
Strand 6	G	206	210	parallel
Strand 7	G	262	267	parallel
Strand 8	G	356	360	parallel
Strand 9	G	28	34	parallel
Strand 10	G	58	67	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	286	289	first strand
Strand 2	G	269	275	anti-parallel
Strand 3	G	301	303	anti-parallel

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There are 5 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	286	289	first strand
Strand 2	G	269	275	anti-parallel
Strand 3	G	332	335	anti-parallel
Strand 4	G	325	329	anti-parallel
Strand 5	G	315	318	anti-parallel

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There are 10 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	70	72	first strand
Strand 2	H	58	67	anti-parallel
Strand 3	H	96	103	parallel
Strand 4	H	139	144	parallel
Strand 5	H	179	185	parallel
Strand 6	H	206	210	parallel
Strand 7	H	262	267	parallel
Strand 8	H	356	360	parallel
Strand 9	H	28	34	parallel
Strand 10	H	58	67	parallel

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There are 3 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	286	289	first strand
Strand 2	H	269	275	anti-parallel
Strand 3	H	301	303	anti-parallel

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There are 5 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	286	289	first strand
Strand 2	H	269	275	anti-parallel
Strand 3	H	332	335	anti-parallel
Strand 4	H	325	329	anti-parallel
Strand 5	H	315	318	anti-parallel

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There are 10 strands in AC7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	70	72	first strand
Strand 2	I	58	67	anti-parallel
Strand 3	I	96	102	parallel
Strand 4	I	139	143	parallel
Strand 5	I	179	185	parallel
Strand 6	I	206	210	parallel
Strand 7	I	262	267	parallel
Strand 8	I	356	360	parallel
Strand 9	I	28	34	parallel
Strand 10	I	58	67	parallel

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There are 3 strands in AC8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	286	289	first strand
Strand 2	I	269	275	anti-parallel
Strand 3	I	301	303	anti-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	286	289	first strand
Strand 2	I	269	275	anti-parallel
Strand 3	I	332	335	anti-parallel
Strand 4	I	325	329	anti-parallel
Strand 5	I	315	318	anti-parallel

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There are 10 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	70	72	first strand
Strand 2	J	58	67	anti-parallel
Strand 3	J	96	103	parallel
Strand 4	J	139	144	parallel
Strand 5	J	179	185	parallel
Strand 6	J	206	210	parallel
Strand 7	J	262	267	parallel
Strand 8	J	356	360	parallel
Strand 9	J	28	34	parallel
Strand 10	J	58	67	parallel

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There are 3 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	286	289	first strand
Strand 2	J	269	275	anti-parallel
Strand 3	J	301	303	anti-parallel

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There are 5 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	286	289	first strand
Strand 2	J	269	275	anti-parallel
Strand 3	J	332	335	anti-parallel
Strand 4	J	325	329	anti-parallel
Strand 5	J	315	318	anti-parallel

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There are 10 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	70	72	first strand
Strand 2	K	58	67	anti-parallel
Strand 3	K	96	103	parallel
Strand 4	K	139	144	parallel
Strand 5	K	179	185	parallel
Strand 6	K	206	210	parallel
Strand 7	K	262	267	parallel
Strand 8	K	356	360	parallel
Strand 9	K	28	34	parallel
Strand 10	K	58	67	parallel

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There are 3 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	286	289	first strand
Strand 2	K	269	275	anti-parallel
Strand 3	K	301	303	anti-parallel

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There are 5 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	286	289	first strand
Strand 2	K	269	275	anti-parallel
Strand 3	K	332	335	anti-parallel
Strand 4	K	325	329	anti-parallel
Strand 5	K	315	318	anti-parallel

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There are 10 strands in AD7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	70	72	first strand
Strand 2	L	58	67	anti-parallel
Strand 3	L	96	103	parallel
Strand 4	L	139	144	parallel
Strand 5	L	179	185	parallel
Strand 6	L	206	210	parallel
Strand 7	L	262	267	parallel
Strand 8	L	356	360	parallel
Strand 9	L	28	34	parallel
Strand 10	L	58	67	parallel

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There are 3 strands in AD8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	286	289	first strand
Strand 2	L	269	275	anti-parallel
Strand 3	L	301	303	anti-parallel

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There are 5 strands in AD9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	286	289	first strand
Strand 2	L	269	275	anti-parallel
Strand 3	L	332	335	anti-parallel
Strand 4	L	324	329	anti-parallel
Strand 5	L	315	319	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: 4AY1

Analysis of interatomic Contacts of Structural Units in PDB entry:
4AY1