Analysis of interatomic Contacts of Structural Units in PDB entry:
20YR

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 20YR entry

There are 10 chains in PDB entry 20YR (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 1	GLU 608
A	ALA 610	ASN 852
B	MET 1	GLU 608
B	ALA 610	ASN 852
D	MET 1	GLU 608
D	ALA 610	ASN 852
E	MET 1	GLU 608
E	ALA 610	ASN 852
C	MET 1	GLU 608
C	ALA 610	ASN 852

There are203 helices in PDB entry 20YR. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	23	27	Right-handed 310
Helix 2	AA2	A	41	52	Right-handed alpha
Helix 3	AA3	A	52	57	Right-handed alpha
Helix 4	AA4	A	62	69	Right-handed alpha
Helix 5	AA5	A	71	80	Right-handed alpha
Helix 6	AA6	A	81	100	Right-handed alpha
Helix 7	AA7	A	128	144	Right-handed alpha
Helix 8	AA8	A	178	182	Right-handed 310
Helix 9	AA9	A	245	267	Right-handed alpha
Helix 10	AB1	A	282	297	Right-handed alpha
Helix 11	AB2	A	299	309	Right-handed alpha
Helix 12	AB3	A	319	323	Right-handed 310
Helix 13	AB4	A	328	335	Right-handed alpha
Helix 14	AB5	A	337	343	Right-handed alpha
Helix 15	AB6	A	345	353	Right-handed alpha
Helix 16	AB7	A	366	373	Right-handed alpha
Helix 17	AB8	A	381	392	Right-handed alpha
Helix 18	AB9	A	393	397	Right-handed 310
Helix 19	AC1	A	400	404	Right-handed 310
Helix 20	AC2	A	414	419	Right-handed alpha
Helix 21	AC3	A	420	431	Right-handed alpha
Helix 22	AC4	A	434	438	Right-handed 310
Helix 23	AC5	A	441	446	Right-handed alpha
Helix 24	AC6	A	447	451	Right-handed 310
Helix 25	AC7	A	452	482	Right-handed alpha
Helix 26	AC8	A	485	487	Right-handed 310
Helix 27	AC9	A	488	494	Right-handed alpha
Helix 28	AD1	A	510	514	Right-handed 310
Helix 29	AD2	A	516	520	Right-handed 310
Helix 30	AD3	A	521	530	Right-handed alpha
Helix 31	AD4	A	549	563	Right-handed alpha
Helix 32	AD5	A	578	589	Right-handed alpha
Helix 33	AD6	A	605	612	Right-handed alpha
Helix 34	AD7	A	624	629	Right-handed alpha
Helix 35	AD8	A	645	664	Right-handed alpha
Helix 36	AD9	A	665	670	Right-handed alpha
Helix 37	AE1	A	680	692	Right-handed alpha
Helix 38	AE2	A	693	696	Right-handed 310
Helix 39	AE3	A	697	709	Right-handed alpha
Helix 40	AE4	A	710	741	Right-handed alpha
Helix 41	AE5	B	23	26	Right-handed 310
Helix 42	AE6	B	27	35	Right-handed alpha
Helix 43	AE7	B	36	40	Right-handed 310
Helix 44	AE8	B	41	52	Right-handed alpha
Helix 45	AE9	B	54	59	Right-handed alpha
Helix 46	AF1	B	62	69	Right-handed alpha
Helix 47	AF2	B	71	81	Right-handed alpha
Helix 48	AF3	B	81	100	Right-handed alpha
Helix 49	AF4	B	128	145	Right-handed alpha
Helix 50	AF5	B	178	182	Right-handed 310
Helix 51	AF6	B	245	256	Right-handed alpha
Helix 52	AF7	B	257	266	Right-handed alpha
Helix 53	AF8	B	279	282	Right-handed 310
Helix 54	AF9	B	283	295	Right-handed alpha
Helix 55	AG1	B	299	310	Right-handed alpha
Helix 56	AG2	B	319	323	Right-handed 310
Helix 57	AG3	B	328	336	Right-handed alpha
Helix 58	AG4	B	337	343	Right-handed alpha
Helix 59	AG5	B	345	352	Right-handed alpha
Helix 60	AG6	B	366	374	Right-handed alpha
Helix 61	AG7	B	381	392	Right-handed alpha
Helix 62	AG8	B	400	404	Right-handed 310
Helix 63	AG9	B	414	419	Right-handed alpha
Helix 64	AH1	B	420	431	Right-handed alpha
Helix 65	AH2	B	441	446	Right-handed alpha
Helix 66	AH3	B	447	450	Right-handed 310
Helix 67	AH4	B	452	482	Right-handed alpha
Helix 68	AH5	B	485	487	Right-handed 310
Helix 69	AH6	B	488	493	Right-handed alpha
Helix 70	AH7	B	510	514	Right-handed 310
Helix 71	AH8	B	517	520	Right-handed 310
Helix 72	AH9	B	521	530	Right-handed alpha
Helix 73	AI1	B	549	563	Right-handed alpha
Helix 74	AI2	B	584	589	Right-handed alpha
Helix 75	AI3	B	605	613	Right-handed alpha
Helix 76	AI4	B	624	629	Right-handed alpha
Helix 77	AI5	B	648	665	Right-handed alpha
Helix 78	AI6	B	665	670	Right-handed alpha
Helix 79	AI7	B	678	692	Right-handed alpha
Helix 80	AI8	B	693	696	Right-handed 310
Helix 81	AI9	B	697	709	Right-handed alpha
Helix 82	AJ1	B	712	721	Right-handed alpha
Helix 83	AJ2	B	721	741	Right-handed alpha
Helix 84	AJ3	D	28	33	Right-handed alpha
Helix 85	AJ4	D	35	40	Right-handed 310
Helix 86	AJ5	D	41	52	Right-handed alpha
Helix 87	AJ6	D	52	58	Right-handed alpha
Helix 88	AJ7	D	64	69	Right-handed alpha
Helix 89	AJ8	D	71	81	Right-handed alpha
Helix 90	AJ9	D	81	99	Right-handed alpha
Helix 91	AK1	D	128	145	Right-handed alpha
Helix 92	AK2	D	234	239	Right-handed 310
Helix 93	AK3	D	245	267	Right-handed alpha
Helix 94	AK4	D	282	297	Right-handed alpha
Helix 95	AK5	D	299	310	Right-handed alpha
Helix 96	AK6	D	327	336	Right-handed alpha
Helix 97	AK7	D	337	343	Right-handed alpha
Helix 98	AK8	D	345	352	Right-handed alpha
Helix 99	AK9	D	366	374	Right-handed alpha
Helix 100	AL1	D	381	392	Right-handed alpha
Helix 101	AL2	D	400	404	Right-handed 310
Helix 102	AL3	D	414	419	Right-handed alpha
Helix 103	AL4	D	420	431	Right-handed alpha
Helix 104	AL5	D	434	438	Right-handed 310
Helix 105	AL6	D	441	446	Right-handed alpha
Helix 106	AL7	D	447	451	Right-handed 310
Helix 107	AL8	D	452	482	Right-handed alpha
Helix 108	AL9	D	485	487	Right-handed 310
Helix 109	AM1	D	488	494	Right-handed alpha
Helix 110	AM2	D	514	520	Right-handed 310
Helix 111	AM3	D	521	530	Right-handed alpha
Helix 112	AM4	D	548	563	Right-handed alpha
Helix 113	AM5	D	578	589	Right-handed alpha
Helix 114	AM6	D	605	612	Right-handed alpha
Helix 115	AM7	D	624	629	Right-handed alpha
Helix 116	AM8	D	645	664	Right-handed alpha
Helix 117	AM9	D	665	670	Right-handed alpha
Helix 118	AN1	D	678	692	Right-handed alpha
Helix 119	AN2	D	693	696	Right-handed 310
Helix 120	AN3	D	697	709	Right-handed alpha
Helix 121	AN4	D	709	741	Right-handed alpha
Helix 122	AN5	D	752	757	Right-handed alpha
Helix 123	AN6	E	26	34	Right-handed alpha
Helix 124	AN7	E	37	40	Right-handed 310
Helix 125	AN8	E	41	52	Right-handed alpha
Helix 126	AN9	E	52	59	Right-handed alpha
Helix 127	AO1	E	62	70	Right-handed alpha
Helix 128	AO2	E	71	81	Right-handed alpha
Helix 129	AO3	E	82	100	Right-handed alpha
Helix 130	AO4	E	128	145	Right-handed alpha
Helix 131	AO5	E	234	239	Right-handed 310
Helix 132	AO6	E	245	267	Right-handed alpha
Helix 133	AO7	E	279	281	Right-handed 310
Helix 134	AO8	E	282	297	Right-handed alpha
Helix 135	AO9	E	299	310	Right-handed alpha
Helix 136	AP1	E	319	323	Right-handed 310
Helix 137	AP2	E	327	336	Right-handed alpha
Helix 138	AP3	E	338	343	Right-handed alpha
Helix 139	AP4	E	345	353	Right-handed alpha
Helix 140	AP5	E	365	374	Right-handed alpha
Helix 141	AP6	E	381	392	Right-handed alpha
Helix 142	AP7	E	393	396	Right-handed 310
Helix 143	AP8	E	400	404	Right-handed 310
Helix 144	AP9	E	414	419	Right-handed alpha
Helix 145	AQ1	E	420	431	Right-handed alpha
Helix 146	AQ2	E	441	446	Right-handed alpha
Helix 147	AQ3	E	447	451	Right-handed 310
Helix 148	AQ4	E	452	482	Right-handed alpha
Helix 149	AQ5	E	485	487	Right-handed 310
Helix 150	AQ6	E	488	494	Right-handed alpha
Helix 151	AQ7	E	510	520	Right-handed 310
Helix 152	AQ8	E	521	530	Right-handed alpha
Helix 153	AQ9	E	548	563	Right-handed alpha
Helix 154	AR1	E	578	589	Right-handed alpha
Helix 155	AR2	E	605	612	Right-handed alpha
Helix 156	AR3	E	623	629	Right-handed alpha
Helix 157	AR4	E	645	664	Right-handed alpha
Helix 158	AR5	E	664	670	Right-handed alpha
Helix 159	AR6	E	678	692	Right-handed alpha
Helix 160	AR7	E	693	696	Right-handed 310
Helix 161	AR8	E	697	709	Right-handed alpha
Helix 162	AR9	E	709	721	Right-handed alpha
Helix 163	AS1	E	721	741	Right-handed alpha
Helix 164	AS2	C	26	35	Right-handed alpha
Helix 165	AS3	C	36	40	Right-handed 310
Helix 166	AS4	C	41	52	Right-handed alpha
Helix 167	AS5	C	52	59	Right-handed alpha
Helix 168	AS6	C	62	69	Right-handed alpha
Helix 169	AS7	C	71	80	Right-handed alpha
Helix 170	AS8	C	82	100	Right-handed alpha
Helix 171	AS9	C	129	145	Right-handed alpha
Helix 172	AT1	C	245	268	Right-handed alpha
Helix 173	AT2	C	278	282	Right-handed 310
Helix 174	AT3	C	283	295	Right-handed alpha
Helix 175	AT4	C	299	309	Right-handed alpha
Helix 176	AT5	C	319	323	Right-handed 310
Helix 177	AT6	C	327	335	Right-handed alpha
Helix 178	AT7	C	337	343	Right-handed alpha
Helix 179	AT8	C	346	354	Right-handed alpha
Helix 180	AT9	C	365	374	Right-handed alpha
Helix 181	AU1	C	381	392	Right-handed alpha
Helix 182	AU2	C	400	404	Right-handed 310
Helix 183	AU3	C	414	419	Right-handed alpha
Helix 184	AU4	C	420	431	Right-handed alpha
Helix 185	AU5	C	441	446	Right-handed alpha
Helix 186	AU6	C	447	451	Right-handed 310
Helix 187	AU7	C	452	482	Right-handed alpha
Helix 188	AU8	C	488	495	Right-handed alpha
Helix 189	AU9	C	515	520	Right-handed 310
Helix 190	AV1	C	521	530	Right-handed alpha
Helix 191	AV2	C	549	564	Right-handed alpha
Helix 192	AV3	C	578	589	Right-handed alpha
Helix 193	AV4	C	605	612	Right-handed alpha
Helix 194	AV5	C	622	627	Right-handed 310
Helix 195	AV6	C	632	636	Right-handed 310
Helix 196	AV7	C	645	664	Right-handed alpha
Helix 197	AV8	C	664	670	Right-handed alpha
Helix 198	AV9	C	678	691	Right-handed alpha
Helix 199	AW1	C	692	696	Right-handed 310
Helix 200	AW2	C	697	709	Right-handed alpha
Helix 201	AW3	C	709	721	Right-handed alpha
Helix 202	AW4	C	721	742	Right-handed alpha
Helix 203	AW5	C	743	745	Right-handed 310

There are 40 sheets in PDB entry 20YR. 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, AE1, AE2, AE3, AE4,

There are 5 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	6	8	first strand
Strand 2	B	846	850	parallel
Strand 3	B	824	834	anti-parallel
Strand 4	A	14	19	anti-parallel
Strand 5	B	758	759	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	6	8	first strand
Strand 2	B	846	850	parallel
Strand 3	B	824	834	anti-parallel
Strand 4	B	779	785	anti-parallel
Strand 5	B	798	801	anti-parallel

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There are 3 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	185	186	first strand
Strand 2	A	206	215	anti-parallel
Strand 3	A	196	199	anti-parallel

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There are 9 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	185	186	first strand
Strand 2	A	206	215	anti-parallel
Strand 3	A	218	224	anti-parallel
Strand 4	A	148	153	parallel
Strand 5	A	110	113	parallel
Strand 6	A	273	276	parallel
Strand 7	A	312	314	parallel
Strand 8	A	376	379	parallel
Strand 9	A	407	408	parallel

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There are 2 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	161	164	first strand
Strand 2	A	170	173	anti-parallel

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There are 2 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	325	326	first strand
Strand 2	A	364	365	anti-parallel

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There are 6 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	571	574	first strand
Strand 2	A	536	541	parallel
Strand 3	A	501	506	parallel
Strand 4	A	591	594	parallel
Strand 5	A	616	620	parallel
Strand 6	A	634	637	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	746	750	first strand
Strand 2	A	766	771	anti-parallel
Strand 3	A	811	816	anti-parallel
Strand 4	A	803	808	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	A	758	759	first strand
Strand 2	E	14	19	parallel
Strand 3	A	824	834	anti-parallel
Strand 4	A	779	791	anti-parallel
Strand 5	A	794	801	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	846	848	first strand
Strand 2	E	6	8	parallel

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There are 2 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	17	18	first strand
Strand 2	C	824	825	anti-parallel

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There are 4 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	149	153	first strand
Strand 2	B	218	224	parallel
Strand 3	B	206	215	anti-parallel
Strand 4	B	196	199	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	161	164	first strand
Strand 2	B	170	173	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	275	277	first strand
Strand 2	B	312	314	parallel
Strand 3	B	376	379	parallel
Strand 4	B	407	408	parallel

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There are 2 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	325	326	first strand
Strand 2	B	364	365	anti-parallel

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There are 6 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	571	574	first strand
Strand 2	B	536	541	parallel
Strand 3	B	501	506	parallel
Strand 4	B	591	594	parallel
Strand 5	B	616	620	parallel
Strand 6	B	635	637	parallel

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There are 4 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	746	750	first strand
Strand 2	B	768	771	anti-parallel
Strand 3	B	811	815	anti-parallel
Strand 4	B	803	804	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	D	7	8	first strand
Strand 2	E	847	850	parallel
Strand 3	E	824	834	anti-parallel
Strand 4	D	14	19	anti-parallel
Strand 5	E	758	759	parallel

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There are 5 strands in AC1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	7	8	first strand
Strand 2	E	847	850	parallel
Strand 3	E	824	834	anti-parallel
Strand 4	E	779	791	anti-parallel
Strand 5	E	794	801	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	185	186	first strand
Strand 2	D	204	215	anti-parallel
Strand 3	D	196	201	anti-parallel

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There are 9 strands in AC3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	185	186	first strand
Strand 2	D	204	215	anti-parallel
Strand 3	D	218	224	anti-parallel
Strand 4	D	147	153	parallel
Strand 5	D	109	113	parallel
Strand 6	D	273	277	parallel
Strand 7	D	311	314	parallel
Strand 8	D	376	379	parallel
Strand 9	D	407	408	parallel

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There are 2 strands in AC4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	161	164	first strand
Strand 2	D	170	173	anti-parallel

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There are 2 strands in AC5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	325	326	first strand
Strand 2	D	364	365	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	571	574	first strand
Strand 2	D	536	541	parallel
Strand 3	D	501	506	parallel
Strand 4	D	591	594	parallel
Strand 5	D	616	620	parallel
Strand 6	D	635	637	parallel

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There are 8 strands in AC7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	746	751	first strand
Strand 2	D	764	771	anti-parallel
Strand 3	D	811	818	anti-parallel
Strand 4	D	798	808	anti-parallel
Strand 5	D	779	785	anti-parallel
Strand 6	D	825	834	anti-parallel
Strand 7	C	14	19	anti-parallel
Strand 8	D	758	759	parallel

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There are 7 strands in AC8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	746	751	first strand
Strand 2	D	764	771	anti-parallel
Strand 3	D	811	818	anti-parallel
Strand 4	D	798	808	anti-parallel
Strand 5	D	779	785	anti-parallel
Strand 6	D	825	834	anti-parallel
Strand 7	D	849	850	anti-parallel

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There are 2 strands in AC9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	846	847	first strand
Strand 2	C	6	7	parallel

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There are 3 strands in AD1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	185	186	first strand
Strand 2	E	206	215	anti-parallel
Strand 3	E	196	199	anti-parallel

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There are 9 strands in AD2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	185	186	first strand
Strand 2	E	206	215	anti-parallel
Strand 3	E	218	224	anti-parallel
Strand 4	E	147	153	parallel
Strand 5	E	109	113	parallel
Strand 6	E	273	277	parallel
Strand 7	E	311	314	parallel
Strand 8	E	376	379	parallel
Strand 9	E	407	408	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	161	164	first strand
Strand 2	E	170	173	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	571	574	first strand
Strand 2	E	536	541	parallel
Strand 3	E	501	506	parallel
Strand 4	E	591	594	parallel
Strand 5	E	616	620	parallel
Strand 6	E	635	637	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	E	764	771	first strand
Strand 2	E	811	818	anti-parallel
Strand 3	E	803	808	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	185	186	first strand
Strand 2	C	205	215	anti-parallel
Strand 3	C	196	200	anti-parallel

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There are 6 strands in AD7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	185	186	first strand
Strand 2	C	205	215	anti-parallel
Strand 3	C	218	224	anti-parallel
Strand 4	C	148	153	parallel
Strand 5	C	110	113	parallel
Strand 6	C	273	276	parallel

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There are 2 strands in AD8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	161	164	first strand
Strand 2	C	170	173	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	378	379	first strand
Strand 2	C	407	408	parallel

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There are 4 strands in AE1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	571	574	first strand
Strand 2	C	536	541	parallel
Strand 3	C	501	504	parallel
Strand 4	C	591	592	parallel

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There are 3 strands in AE2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	746	747	first strand
Strand 2	C	770	771	anti-parallel
Strand 3	C	811	812	anti-parallel

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There are 3 strands in AE3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	794	796	first strand
Strand 2	C	781	791	anti-parallel
Strand 3	C	827	831	anti-parallel

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There are 2 strands in AE4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	803	804	first strand
Strand 2	C	814	815	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: 20YR

Analysis of interatomic Contacts of Structural Units in PDB entry:
20YR