Analysis of interatomic Contacts of Structural Units in PDB entry:
5A1U

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 5A1U entry

There are 8 chains in PDB entry 5A1U (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 18	SER 176
B	MET 18	SER 176
C	MET 1	VAL 813
D	MET 1	GLU 803
E	HIS 21	GLY 874
F	LEU 10	LEU 148
G	MET 16	LEU 968
H	MET 1	GLU 135

There are133 helices in PDB entry 5A1U. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	29	40	Right-handed alpha
Helix 2	2	A	71	76	Right-handed alpha
Helix 3	3	A	78	83	Right-handed alpha
Helix 4	4	A	99	111	Right-handed alpha
Helix 5	5	A	113	117	Right-handed 310
Helix 6	6	A	135	144	Right-handed alpha
Helix 7	7	A	145	148	Right-handed 310
Helix 8	8	A	165	175	Right-handed alpha
Helix 9	9	B	29	40	Right-handed alpha
Helix 10	10	B	71	76	Right-handed alpha
Helix 11	11	B	78	83	Right-handed alpha
Helix 12	12	B	99	111	Right-handed alpha
Helix 13	13	B	113	117	Right-handed 310
Helix 14	14	B	135	144	Right-handed alpha
Helix 15	15	B	145	148	Right-handed 310
Helix 16	16	B	165	175	Right-handed alpha
Helix 17	17	C	595	605	Right-handed alpha
Helix 18	18	C	608	615	Right-handed alpha
Helix 19	19	C	636	641	Right-handed alpha
Helix 20	20	C	644	656	Right-handed alpha
Helix 21	21	C	658	668	Right-handed alpha
Helix 22	22	C	670	685	Right-handed alpha
Helix 23	23	C	687	698	Right-handed alpha
Helix 24	24	C	699	711	Right-handed alpha
Helix 25	25	C	713	725	Right-handed alpha
Helix 26	26	C	733	739	Right-handed alpha
Helix 27	27	C	743	753	Right-handed alpha
Helix 28	28	C	754	765	Right-handed alpha
Helix 29	29	C	767	778	Right-handed alpha
Helix 30	30	D	491	502	Right-handed alpha
Helix 31	31	D	588	601	Right-handed alpha
Helix 32	32	D	602	610	Right-handed alpha
Helix 33	33	D	611	613	Right-handed 310
Helix 34	34	D	614	629	Right-handed alpha
Helix 35	35	D	630	638	Right-handed alpha
Helix 36	36	D	640	652	Right-handed alpha
Helix 37	37	D	653	662	Right-handed alpha
Helix 38	38	D	666	681	Right-handed alpha
Helix 39	39	D	682	694	Right-handed alpha
Helix 40	40	D	695	704	Right-handed alpha
Helix 41	41	D	713	717	Right-handed 310
Helix 42	42	D	718	723	Right-handed alpha
Helix 43	43	D	724	733	Right-handed alpha
Helix 44	44	D	740	749	Right-handed alpha
Helix 45	45	D	750	761	Right-handed alpha
Helix 46	46	D	765	780	Right-handed alpha
Helix 47	47	E	23	31	Right-handed alpha
Helix 48	48	E	32	36	Right-handed 310
Helix 49	49	E	40	58	Right-handed alpha
Helix 50	50	E	62	76	Right-handed alpha
Helix 51	51	E	77	79	Right-handed 310
Helix 52	52	E	81	97	Right-handed alpha
Helix 53	53	E	101	103	Right-handed 310
Helix 54	54	E	104	115	Right-handed alpha
Helix 55	55	E	117	132	Right-handed alpha
Helix 56	56	E	133	149	Right-handed alpha
Helix 57	57	E	152	170	Right-handed alpha
Helix 58	58	E	170	177	Right-handed alpha
Helix 59	59	E	177	186	Right-handed alpha
Helix 60	60	E	189	205	Right-handed alpha
Helix 61	61	E	207	220	Right-handed alpha
Helix 62	62	E	225	237	Right-handed alpha
Helix 63	63	E	263	275	Right-handed alpha
Helix 64	64	E	291	297	Right-handed alpha
Helix 65	65	E	303	309	Right-handed alpha
Helix 66	66	E	316	322	Right-handed alpha
Helix 67	67	E	324	335	Right-handed alpha
Helix 68	68	E	337	352	Right-handed alpha
Helix 69	69	E	356	368	Right-handed alpha
Helix 70	70	E	373	390	Right-handed alpha
Helix 71	71	E	393	409	Right-handed alpha
Helix 72	72	E	412	425	Right-handed alpha
Helix 73	73	E	428	441	Right-handed alpha
Helix 74	74	E	448	463	Right-handed alpha
Helix 75	75	E	468	482	Right-handed alpha
Helix 76	76	E	484	502	Right-handed alpha
Helix 77	77	E	505	515	Right-handed alpha
Helix 78	78	E	522	537	Right-handed alpha
Helix 79	79	E	540	547	Right-handed alpha
Helix 80	80	E	559	568	Right-handed alpha
Helix 81	81	E	608	620	Right-handed alpha
Helix 82	82	E	621	626	Right-handed alpha
Helix 83	83	E	759	763	Right-handed alpha
Helix 84	84	E	771	781	Right-handed alpha
Helix 85	85	E	796	809	Right-handed alpha
Helix 86	86	E	862	873	Right-handed alpha
Helix 87	87	F	37	53	Right-handed alpha
Helix 88	88	F	86	106	Right-handed alpha
Helix 89	89	F	110	117	Right-handed alpha
Helix 90	90	F	117	128	Right-handed alpha
Helix 91	91	F	138	146	Right-handed alpha
Helix 92	92	G	22	31	Right-handed alpha
Helix 93	93	G	34	52	Right-handed alpha
Helix 94	94	G	55	57	Right-handed 310
Helix 95	95	G	58	67	Right-handed alpha
Helix 96	96	G	71	82	Right-handed alpha
Helix 97	97	G	105	110	Right-handed alpha
Helix 98	98	G	113	127	Right-handed alpha
Helix 99	99	G	132	137	Right-handed alpha
Helix 100	100	G	138	144	Right-handed 310
Helix 101	101	G	148	165	Right-handed alpha
Helix 102	102	G	182	190	Right-handed alpha
Helix 103	103	G	202	215	Right-handed alpha
Helix 104	104	G	217	228	Right-handed alpha
Helix 105	105	G	238	252	Right-handed alpha
Helix 106	106	G	264	269	Right-handed alpha
Helix 107	107	G	270	273	Right-handed 310
Helix 108	108	G	275	291	Right-handed alpha
Helix 109	109	G	319	326	Right-handed alpha
Helix 110	110	G	333	348	Right-handed alpha
Helix 111	111	G	352	364	Right-handed alpha
Helix 112	112	G	376	394	Right-handed alpha
Helix 113	113	G	395	410	Right-handed alpha
Helix 114	114	G	413	431	Right-handed alpha
Helix 115	115	G	435	437	Right-handed 310
Helix 116	116	G	438	443	Right-handed alpha
Helix 117	117	G	451	465	Right-handed alpha
Helix 118	118	G	471	481	Right-handed alpha
Helix 119	119	G	488	497	Right-handed alpha
Helix 120	120	G	510	523	Right-handed alpha
Helix 121	121	G	544	550	Right-handed alpha
Helix 122	122	G	560	566	Right-handed alpha
Helix 123	123	G	584	594	Right-handed alpha
Helix 124	124	G	840	845	Right-handed 310
Helix 125	125	G	851	862	Right-handed alpha
Helix 126	126	G	879	888	Right-handed alpha
Helix 127	127	G	951	958	Right-handed alpha
Helix 128	128	H	26	36	Right-handed alpha
Helix 129	129	H	37	40	Right-handed 310
Helix 130	130	H	75	95	Right-handed alpha
Helix 131	131	H	98	105	Right-handed alpha
Helix 132	132	H	105	116	Right-handed alpha
Helix 133	133	H	126	134	Right-handed alpha

There are 47 sheets in PDB entry 5A1U. Click on sheet of interest to get list of strands forming it: AA, BA, CA, CB, CC, CD, CE, CF, CG, CH, CI, CJ, CK, CL, CM, CN, A, DB, C, DD, DE, DF, G, DH, DI, DJ, DK, DL, DM, EA, EB, EC, ED, EE, EF, EG, EH, EI, EJ, EK, FA, FB, GA, GB, GC, HA, HB,

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	51	58	first strand
Strand 2	A	61	68	anti-parallel
Strand 3	A	19	24	parallel
Strand 4	A	87	93	parallel
Strand 5	A	120	126	parallel
Strand 6	A	153	157	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	51	58	first strand
Strand 2	B	61	68	anti-parallel
Strand 3	B	19	23	parallel
Strand 4	B	87	93	parallel
Strand 5	B	120	126	parallel
Strand 6	B	153	157	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	2	8	first strand
Strand 2	C	313	318	anti-parallel
Strand 3	C	306	309	anti-parallel
Strand 4	C	296	299	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	12	17	first strand
Strand 2	C	23	28	anti-parallel
Strand 3	C	32	37	anti-parallel
Strand 4	C	42	48	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	56	60	first strand
Strand 2	C	65	69	anti-parallel
Strand 3	C	74	78	anti-parallel
Strand 4	C	87	90	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	96	101	first strand
Strand 2	C	107	112	anti-parallel
Strand 3	C	116	121	anti-parallel
Strand 4	C	129	132	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	138	143	first strand
Strand 2	C	149	154	anti-parallel
Strand 3	C	158	163	anti-parallel
Strand 4	C	200	202	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	208	213	first strand
Strand 2	C	219	224	anti-parallel
Strand 3	C	228	233	anti-parallel
Strand 4	C	243	246	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	252	257	first strand
Strand 2	C	263	268	anti-parallel
Strand 3	C	272	277	anti-parallel
Strand 4	C	283	288	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	326	328	first strand
Strand 2	C	333	335	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	367	370	first strand
Strand 2	C	376	381	anti-parallel
Strand 3	C	390	395	anti-parallel
Strand 4	C	412	414	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	417	421	first strand
Strand 2	C	426	430	anti-parallel
Strand 3	C	436	438	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	472	475	first strand
Strand 2	C	482	486	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	503	506	first strand
Strand 2	C	511	515	anti-parallel
Strand 3	C	519	523	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	532	535	first strand
Strand 2	C	541	544	anti-parallel
Strand 3	C	548	554	anti-parallel
Strand 4	C	557	563	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	569	573	first strand
Strand 2	C	578	581	anti-parallel
Strand 3	C	587	590	anti-parallel

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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	D	8	14	first strand
Strand 2	D	293	298	anti-parallel
Strand 3	D	285	290	anti-parallel
Strand 4	D	274	279	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	18	23	first strand
Strand 2	D	29	34	anti-parallel
Strand 3	D	39	43	anti-parallel
Strand 4	D	48	53	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	60	66	first strand
Strand 2	D	71	76	anti-parallel
Strand 3	D	81	85	anti-parallel
Strand 4	D	90	95	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	102	107	first strand
Strand 2	D	113	118	anti-parallel
Strand 3	D	122	127	anti-parallel
Strand 4	D	133	139	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	145	150	first strand
Strand 2	D	157	162	anti-parallel
Strand 3	D	167	171	anti-parallel
Strand 4	D	177	181	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	190	192	first strand
Strand 2	D	201	205	anti-parallel
Strand 3	D	211	215	anti-parallel
Strand 4	D	221	225	anti-parallel

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There are 4 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	232	237	first strand
Strand 2	D	243	248	anti-parallel
Strand 3	D	253	257	anti-parallel
Strand 4	D	263	267	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	340	341	first strand
Strand 2	D	582	585	anti-parallel
Strand 3	D	572	576	anti-parallel
Strand 4	D	562	567	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	357	360	first strand
Strand 2	D	366	371	anti-parallel
Strand 3	D	374	379	anti-parallel
Strand 4	D	385	390	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	393	396	first strand
Strand 2	D	402	406	anti-parallel
Strand 3	D	412	416	anti-parallel
Strand 4	D	419	421	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	432	434	first strand
Strand 2	D	439	443	anti-parallel
Strand 3	D	446	450	anti-parallel
Strand 4	D	457	461	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	465	470	first strand
Strand 2	D	476	481	anti-parallel
Strand 3	D	485	490	anti-parallel
Strand 4	D	514	520	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	527	530	first strand
Strand 2	D	533	537	anti-parallel
Strand 3	D	542	547	anti-parallel
Strand 4	D	550	556	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	629	632	first strand
Strand 2	E	646	655	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	637	640	first strand
Strand 2	E	646	655	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	688	693	first strand
Strand 2	E	704	711	anti-parallel
Strand 3	E	658	667	anti-parallel
Strand 4	E	646	655	anti-parallel
Strand 5	E	637	640	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	688	693	first strand
Strand 2	E	704	711	anti-parallel
Strand 3	E	658	667	anti-parallel
Strand 4	E	646	655	anti-parallel
Strand 5	E	629	632	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	695	698	first strand
Strand 2	E	672	683	anti-parallel
Strand 3	E	722	734	anti-parallel
Strand 4	E	746	752	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	695	698	first strand
Strand 2	E	672	683	anti-parallel
Strand 3	E	722	734	anti-parallel
Strand 4	E	756	758	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	746	752	first strand
Strand 2	E	722	734	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	764	766	first strand
Strand 2	E	825	834	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	785	791	first strand
Strand 2	E	852	860	anti-parallel
Strand 3	E	838	848	anti-parallel
Strand 4	E	825	834	anti-parallel
Strand 5	E	811	812	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	785	791	first strand
Strand 2	E	852	860	anti-parallel
Strand 3	E	838	848	anti-parallel
Strand 4	E	825	834	anti-parallel
Strand 5	E	764	766	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	811	812	first strand
Strand 2	E	825	834	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	27	29	first strand
Strand 2	F	13	20	anti-parallel
Strand 3	F	75	81	anti-parallel
Strand 4	F	65	71	anti-parallel
Strand 5	F	60	62	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	129	130	first strand
Strand 2	F	133	134	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	742	750	first strand
Strand 2	G	753	761	anti-parallel
Strand 3	G	797	805	anti-parallel
Strand 4	G	782	785	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	772	775	first strand
Strand 2	G	820	823	anti-parallel
Strand 3	G	831	834	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	867	870	first strand
Strand 2	G	940	946	anti-parallel
Strand 3	G	920	926	anti-parallel
Strand 4	G	906	912	anti-parallel
Strand 5	G	891	892	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	14	19	first strand
Strand 2	H	5	10	anti-parallel
Strand 3	H	64	70	anti-parallel
Strand 4	H	54	61	anti-parallel
Strand 5	H	48	51	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	117	118	first strand
Strand 2	H	121	122	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: 5A1U

Analysis of interatomic Contacts of Structural Units in PDB entry:
5A1U