Analysis of interatomic Contacts of Structural Units in PDB entry:
2X2I

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 2X2I entry

There are 8 chains in PDB entry 2X2I (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	THR 14	GLU 335
A	VAL 337	THR 1038
B	THR 14	GLU 335
B	VAL 337	THR 1038
C	THR 14	GLU 335
C	VAL 337	THR 1038
D	THR 14	GLU 335
D	VAL 337	THR 1038

There are131 helices in PDB entry 2X2I. 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	33	Right-handed 310
Helix 2	2	A	34	38	Right-handed 310
Helix 3	3	A	108	122	Right-handed alpha
Helix 4	4	A	200	203	Right-handed 310
Helix 5	5	A	240	244	Right-handed 310
Helix 6	6	A	245	249	Right-handed 310
Helix 7	7	A	303	307	Right-handed 310
Helix 8	8	A	333	345	Right-handed alpha
Helix 9	9	A	347	351	Right-handed 310
Helix 10	10	A	362	367	Right-handed 310
Helix 11	11	A	379	383	Right-handed 310
Helix 12	12	A	391	402	Right-handed alpha
Helix 13	13	A	425	428	Right-handed 310
Helix 14	14	A	444	452	Right-handed alpha
Helix 15	15	A	473	482	Right-handed alpha
Helix 16	16	A	530	538	Right-handed alpha
Helix 17	17	A	539	544	Right-handed alpha
Helix 18	18	A	612	616	Right-handed 310
Helix 19	19	A	617	630	Right-handed alpha
Helix 20	20	A	634	638	Right-handed 310
Helix 21	21	A	654	658	Right-handed 310
Helix 22	22	A	669	685	Right-handed alpha
Helix 23	23	A	711	723	Right-handed alpha
Helix 24	24	A	747	751	Right-handed 310
Helix 25	25	A	754	768	Right-handed alpha
Helix 26	26	A	768	783	Right-handed alpha
Helix 27	27	A	791	793	Right-handed 310
Helix 28	28	A	846	850	Right-handed 310
Helix 29	29	A	894	898	Right-handed 310
Helix 30	30	A	929	935	Right-handed alpha
Helix 31	31	A	999	1006	Right-handed alpha
Helix 32	32	B	29	33	Right-handed 310
Helix 33	33	B	108	121	Right-handed alpha
Helix 34	34	B	240	244	Right-handed 310
Helix 35	35	B	245	249	Right-handed 310
Helix 36	36	B	303	307	Right-handed 310
Helix 37	37	B	334	345	Right-handed alpha
Helix 38	38	B	347	351	Right-handed 310
Helix 39	39	B	362	367	Right-handed 310
Helix 40	40	B	379	383	Right-handed 310
Helix 41	41	B	391	401	Right-handed alpha
Helix 42	42	B	413	416	Right-handed 310
Helix 43	43	B	425	428	Right-handed 310
Helix 44	44	B	444	451	Right-handed alpha
Helix 45	45	B	473	482	Right-handed alpha
Helix 46	46	B	530	539	Right-handed alpha
Helix 47	47	B	539	544	Right-handed alpha
Helix 48	48	B	612	616	Right-handed 310
Helix 49	49	B	617	629	Right-handed alpha
Helix 50	50	B	634	638	Right-handed 310
Helix 51	51	B	654	658	Right-handed 310
Helix 52	52	B	669	686	Right-handed alpha
Helix 53	53	B	711	723	Right-handed alpha
Helix 54	54	B	747	751	Right-handed 310
Helix 55	55	B	754	768	Right-handed alpha
Helix 56	56	B	768	783	Right-handed alpha
Helix 57	57	B	791	793	Right-handed 310
Helix 58	58	B	798	803	Right-handed alpha
Helix 59	59	B	844	849	Right-handed 310
Helix 60	60	B	894	898	Right-handed 310
Helix 61	61	B	929	935	Right-handed alpha
Helix 62	62	B	999	1006	Right-handed alpha
Helix 63	63	B	1016	1019	Right-handed 310
Helix 64	64	B	1026	1030	Right-handed 310
Helix 65	65	C	29	33	Right-handed 310
Helix 66	66	C	34	38	Right-handed 310
Helix 67	67	C	108	123	Right-handed alpha
Helix 68	68	C	240	244	Right-handed 310
Helix 69	69	C	245	249	Right-handed 310
Helix 70	70	C	303	307	Right-handed 310
Helix 71	71	C	333	346	Right-handed alpha
Helix 72	72	C	347	351	Right-handed 310
Helix 73	73	C	362	367	Right-handed 310
Helix 74	74	C	379	383	Right-handed 310
Helix 75	75	C	391	402	Right-handed alpha
Helix 76	76	C	413	416	Right-handed 310
Helix 77	77	C	425	428	Right-handed 310
Helix 78	78	C	444	452	Right-handed alpha
Helix 79	79	C	473	482	Right-handed alpha
Helix 80	80	C	530	539	Right-handed alpha
Helix 81	81	C	539	544	Right-handed alpha
Helix 82	82	C	612	616	Right-handed 310
Helix 83	83	C	617	629	Right-handed alpha
Helix 84	84	C	634	638	Right-handed 310
Helix 85	85	C	654	658	Right-handed 310
Helix 86	86	C	669	686	Right-handed alpha
Helix 87	87	C	711	723	Right-handed alpha
Helix 88	88	C	747	751	Right-handed 310
Helix 89	89	C	751	753	Right-handed 310
Helix 90	90	C	754	768	Right-handed alpha
Helix 91	91	C	768	783	Right-handed alpha
Helix 92	92	C	791	793	Right-handed 310
Helix 93	93	C	798	803	Right-handed alpha
Helix 94	94	C	846	850	Right-handed 310
Helix 95	95	C	894	898	Right-handed 310
Helix 96	96	C	929	935	Right-handed alpha
Helix 97	97	C	999	1006	Right-handed alpha
Helix 98	98	C	1026	1030	Right-handed 310
Helix 99	99	D	29	33	Right-handed 310
Helix 100	100	D	34	38	Right-handed 310
Helix 101	101	D	108	121	Right-handed alpha
Helix 102	102	D	159	161	Right-handed 310
Helix 103	103	D	240	244	Right-handed 310
Helix 104	104	D	245	249	Right-handed 310
Helix 105	105	D	303	307	Right-handed 310
Helix 106	106	D	334	345	Right-handed alpha
Helix 107	107	D	347	351	Right-handed 310
Helix 108	108	D	362	367	Right-handed 310
Helix 109	109	D	379	383	Right-handed 310
Helix 110	110	D	391	401	Right-handed alpha
Helix 111	111	D	413	416	Right-handed 310
Helix 112	112	D	425	428	Right-handed 310
Helix 113	113	D	444	452	Right-handed alpha
Helix 114	114	D	473	482	Right-handed alpha
Helix 115	115	D	530	539	Right-handed alpha
Helix 116	116	D	539	544	Right-handed alpha
Helix 117	117	D	612	616	Right-handed 310
Helix 118	118	D	617	629	Right-handed alpha
Helix 119	119	D	634	638	Right-handed 310
Helix 120	120	D	654	657	Right-handed 310
Helix 121	121	D	669	686	Right-handed alpha
Helix 122	122	D	711	723	Right-handed alpha
Helix 123	123	D	747	751	Right-handed 310
Helix 124	124	D	754	768	Right-handed alpha
Helix 125	125	D	768	782	Right-handed alpha
Helix 126	126	D	791	793	Right-handed 310
Helix 127	127	D	845	849	Right-handed 310
Helix 128	128	D	894	898	Right-handed 310
Helix 129	129	D	929	935	Right-handed alpha
Helix 130	130	D	999	1006	Right-handed alpha
Helix 131	131	D	1026	1030	Right-handed 310

There are 52 sheets in PDB entry 2X2I. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL, CA, CB, CC, CD, CE, CF, CG, CH, CI, CJ, CK, CL, CM, CN, CO, A, DB, DC, DD, DE, DF, G, DH, DI, DJ, DK, DL,

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	A	169	171	first strand
Strand 2	A	177	185	parallel

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There are 13 strands in AB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	209	212	first strand
Strand 2	A	271	276	anti-parallel
Strand 3	A	284	290	anti-parallel
Strand 4	A	322	327	anti-parallel
Strand 5	A	88	93	anti-parallel
Strand 6	A	72	83	anti-parallel
Strand 7	A	56	65	anti-parallel
Strand 8	A	41	53	anti-parallel
Strand 9	A	177	185	anti-parallel
Strand 10	A	193	198	anti-parallel
Strand 11	A	312	317	anti-parallel
Strand 12	A	296	299	anti-parallel
Strand 13	A	232	235	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	209	212	first strand
Strand 2	A	271	276	anti-parallel
Strand 3	A	284	290	anti-parallel
Strand 4	A	322	327	anti-parallel
Strand 5	A	88	93	anti-parallel
Strand 6	A	72	83	anti-parallel
Strand 7	A	56	65	anti-parallel
Strand 8	A	41	53	anti-parallel
Strand 9	A	177	185	anti-parallel
Strand 10	A	169	171	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	129	130	first strand
Strand 2	A	136	139	anti-parallel
Strand 3	A	143	147	anti-parallel
Strand 4	A	153	157	anti-parallel
Strand 5	A	163	166	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	A	219	220	first strand
Strand 2	A	223	224	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	267	268	first strand
Strand 2	A	651	652	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	691	692	first strand
Strand 2	A	660	662	parallel
Strand 3	A	646	648	parallel
Strand 4	A	549	552	parallel
Strand 5	A	457	460	parallel
Strand 6	A	408	411	parallel
Strand 7	A	369	371	parallel
Strand 8	A	729	730	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	464	465	first strand
Strand 2	A	518	522	anti-parallel
Strand 3	A	509	512	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	A	597	599	first strand
Strand 2	A	608	610	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	788	789	first strand
Strand 2	A	807	809	anti-parallel
Strand 3	A	817	819	anti-parallel
Strand 4	A	874	877	anti-parallel
Strand 5	A	839	843	anti-parallel
Strand 6	A	856	857	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	A	829	833	first strand
Strand 2	A	861	866	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	881	885	first strand
Strand 2	A	904	908	anti-parallel
Strand 3	A	968	973	parallel
Strand 4	A	1020	1025	anti-parallel
Strand 5	A	1011	1015	anti-parallel
Strand 6	A	993	994	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	915	922	first strand
Strand 2	A	938	947	anti-parallel
Strand 3	A	950	960	anti-parallel
Strand 4	A	1033	1038	anti-parallel
Strand 5	A	980	985	anti-parallel
Strand 6	A	988	991	anti-parallel

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There are 2 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	169	170	first strand
Strand 2	B	178	185	parallel

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There are 13 strands in BB sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	209	212	first strand
Strand 2	B	271	276	anti-parallel
Strand 3	B	284	290	anti-parallel
Strand 4	B	322	327	anti-parallel
Strand 5	B	88	93	anti-parallel
Strand 6	B	72	83	anti-parallel
Strand 7	B	56	65	anti-parallel
Strand 8	B	41	53	anti-parallel
Strand 9	B	178	185	anti-parallel
Strand 10	B	193	198	anti-parallel
Strand 11	B	312	317	anti-parallel
Strand 12	B	296	299	anti-parallel
Strand 13	B	232	235	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	209	212	first strand
Strand 2	B	271	276	anti-parallel
Strand 3	B	284	290	anti-parallel
Strand 4	B	322	327	anti-parallel
Strand 5	B	88	93	anti-parallel
Strand 6	B	72	83	anti-parallel
Strand 7	B	56	65	anti-parallel
Strand 8	B	41	53	anti-parallel
Strand 9	B	178	185	anti-parallel
Strand 10	B	169	170	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	129	130	first strand
Strand 2	B	136	140	anti-parallel
Strand 3	B	143	147	anti-parallel
Strand 4	B	153	157	anti-parallel
Strand 5	B	163	166	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	219	220	first strand
Strand 2	B	223	224	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	267	268	first strand
Strand 2	B	651	652	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	660	661	first strand
Strand 2	B	646	648	parallel
Strand 3	B	549	552	parallel
Strand 4	B	455	460	parallel
Strand 5	B	408	411	parallel
Strand 6	B	369	373	parallel
Strand 7	B	729	733	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	464	465	first strand
Strand 2	B	518	522	anti-parallel
Strand 3	B	509	512	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	597	599	first strand
Strand 2	B	608	610	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	788	789	first strand
Strand 2	B	807	809	anti-parallel
Strand 3	B	817	819	anti-parallel
Strand 4	B	874	877	anti-parallel
Strand 5	B	839	842	anti-parallel
Strand 6	B	856	857	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	829	833	first strand
Strand 2	B	861	866	anti-parallel

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There are 12 strands in BL sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	990	991	first strand
Strand 2	B	980	983	anti-parallel
Strand 3	B	1034	1038	anti-parallel
Strand 4	B	950	960	anti-parallel
Strand 5	B	938	947	anti-parallel
Strand 6	B	915	922	anti-parallel
Strand 7	B	880	885	parallel
Strand 8	B	904	908	anti-parallel
Strand 9	B	968	972	parallel
Strand 10	B	1020	1025	anti-parallel
Strand 11	B	1011	1015	anti-parallel
Strand 12	B	993	994	parallel

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There are 2 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	49	53	first strand
Strand 2	C	56	65	anti-parallel

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There are 2 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	169	170	first strand
Strand 2	C	178	185	anti-parallel

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There are 8 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	209	212	first strand
Strand 2	C	271	276	anti-parallel
Strand 3	C	284	290	anti-parallel
Strand 4	C	322	327	anti-parallel
Strand 5	C	88	93	anti-parallel
Strand 6	C	72	83	anti-parallel
Strand 7	C	56	65	anti-parallel
Strand 8	C	49	53	anti-parallel

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There are 13 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	209	212	first strand
Strand 2	C	271	276	anti-parallel
Strand 3	C	284	290	anti-parallel
Strand 4	C	322	327	anti-parallel
Strand 5	C	88	93	anti-parallel
Strand 6	C	72	83	anti-parallel
Strand 7	C	56	65	anti-parallel
Strand 8	C	41	46	parallel
Strand 9	C	178	185	anti-parallel
Strand 10	C	193	198	anti-parallel
Strand 11	C	312	317	parallel
Strand 12	C	296	299	parallel
Strand 13	C	232	235	parallel

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There are 10 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	209	212	first strand
Strand 2	C	271	276	anti-parallel
Strand 3	C	284	290	anti-parallel
Strand 4	C	322	327	anti-parallel
Strand 5	C	88	93	anti-parallel
Strand 6	C	72	83	anti-parallel
Strand 7	C	56	65	anti-parallel
Strand 8	C	41	46	parallel
Strand 9	C	178	185	anti-parallel
Strand 10	C	169	170	anti-parallel

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There are 5 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	129	130	first strand
Strand 2	C	136	139	anti-parallel
Strand 3	C	143	147	anti-parallel
Strand 4	C	153	157	anti-parallel
Strand 5	C	163	166	anti-parallel

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There are 2 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	219	220	first strand
Strand 2	C	223	224	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	267	268	first strand
Strand 2	C	651	652	parallel

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There are 8 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	691	692	first strand
Strand 2	C	660	662	parallel
Strand 3	C	646	648	parallel
Strand 4	C	549	552	parallel
Strand 5	C	455	460	parallel
Strand 6	C	408	411	parallel
Strand 7	C	369	373	parallel
Strand 8	C	729	733	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	464	465	first strand
Strand 2	C	517	522	anti-parallel
Strand 3	C	509	514	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	597	599	first strand
Strand 2	C	608	610	anti-parallel

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There are 6 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	788	789	first strand
Strand 2	C	807	809	anti-parallel
Strand 3	C	817	819	anti-parallel
Strand 4	C	874	877	anti-parallel
Strand 5	C	839	843	anti-parallel
Strand 6	C	856	857	anti-parallel

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There are 2 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	829	833	first strand
Strand 2	C	861	866	anti-parallel

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There are 6 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	881	885	first strand
Strand 2	C	904	908	anti-parallel
Strand 3	C	968	973	parallel
Strand 4	C	1020	1025	anti-parallel
Strand 5	C	1011	1015	anti-parallel
Strand 6	C	993	994	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	915	922	first strand
Strand 2	C	938	947	anti-parallel
Strand 3	C	950	960	anti-parallel
Strand 4	C	1033	1038	anti-parallel
Strand 5	C	980	984	anti-parallel
Strand 6	C	990	991	anti-parallel

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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	D	169	170	first strand
Strand 2	D	178	185	parallel

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There are 13 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	209	212	first strand
Strand 2	D	271	276	anti-parallel
Strand 3	D	284	290	anti-parallel
Strand 4	D	322	327	anti-parallel
Strand 5	D	88	93	anti-parallel
Strand 6	D	72	83	anti-parallel
Strand 7	D	56	65	anti-parallel
Strand 8	D	41	53	anti-parallel
Strand 9	D	178	185	anti-parallel
Strand 10	D	193	198	anti-parallel
Strand 11	D	312	317	anti-parallel
Strand 12	D	296	299	anti-parallel
Strand 13	D	232	235	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	209	212	first strand
Strand 2	D	271	276	anti-parallel
Strand 3	D	284	290	anti-parallel
Strand 4	D	322	327	anti-parallel
Strand 5	D	88	93	anti-parallel
Strand 6	D	72	83	anti-parallel
Strand 7	D	56	65	anti-parallel
Strand 8	D	41	53	anti-parallel
Strand 9	D	178	185	anti-parallel
Strand 10	D	169	170	parallel

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There are 5 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	129	130	first strand
Strand 2	D	136	139	anti-parallel
Strand 3	D	143	147	anti-parallel
Strand 4	D	153	157	anti-parallel
Strand 5	D	163	166	anti-parallel

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There are 2 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	219	220	first strand
Strand 2	D	223	224	anti-parallel

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There are 8 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	691	692	first strand
Strand 2	D	659	662	parallel
Strand 3	D	646	648	parallel
Strand 4	D	549	552	parallel
Strand 5	D	455	460	parallel
Strand 6	D	408	411	parallel
Strand 7	D	369	373	parallel
Strand 8	D	729	733	parallel

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There are 3 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	464	465	first strand
Strand 2	D	518	522	anti-parallel
Strand 3	D	509	512	anti-parallel

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There are 2 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	597	599	first strand
Strand 2	D	608	610	anti-parallel

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There are 6 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	788	789	first strand
Strand 2	D	807	809	anti-parallel
Strand 3	D	817	819	anti-parallel
Strand 4	D	874	877	anti-parallel
Strand 5	D	839	843	anti-parallel
Strand 6	D	856	857	anti-parallel

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There are 2 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	829	833	first strand
Strand 2	D	861	866	anti-parallel

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There are 5 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	881	885	first strand
Strand 2	D	904	908	anti-parallel
Strand 3	D	968	972	parallel
Strand 4	D	1020	1025	anti-parallel
Strand 5	D	1012	1015	anti-parallel

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There are 6 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	915	922	first strand
Strand 2	D	938	947	anti-parallel
Strand 3	D	950	960	anti-parallel
Strand 4	D	1034	1037	anti-parallel
Strand 5	D	982	984	anti-parallel
Strand 6	D	990	991	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: 2X2I

Analysis of interatomic Contacts of Structural Units in PDB entry:
2X2I