Analysis of interatomic Contacts of Structural Units in PDB entry:
2XN1

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 2XN1 entry

There is 1 chain in PDB entry 2XN1 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASN 4	LYS 630

There are 76 helices in PDB entry 2XN1. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	30	32	Right-handed 310
Helix 2	2	A	130	132	Right-handed 310
Helix 3	3	A	307	323	Right-handed alpha
Helix 4	4	A	339	344	Right-handed alpha
Helix 5	5	A	348	363	Right-handed alpha
Helix 6	6	A	397	408	Right-handed alpha
Helix 7	7	A	425	431	Right-handed alpha
Helix 8	8	A	432	434	Right-handed 310
Helix 9	9	A	456	472	Right-handed alpha
Helix 10	10	A	496	501	Right-handed 310
Helix 11	11	A	502	522	Right-handed alpha
Helix 12	12	A	538	543	Right-handed alpha
Helix 13	13	A	555	568	Right-handed alpha
Helix 14	14	A	571	573	Right-handed 310
Helix 15	15	A	592	601	Right-handed alpha
Helix 16	16	A	610	614	Right-handed 310
Helix 17	17	A	615	639	Right-handed alpha
Helix 18	18	A	646	649	Right-handed 310
Helix 19	19	A	704	710	Right-handed alpha
Helix 20	20	B	30	32	Right-handed 310
Helix 21	21	B	130	132	Right-handed 310
Helix 22	22	B	307	323	Right-handed alpha
Helix 23	23	B	339	344	Right-handed alpha
Helix 24	24	B	348	363	Right-handed alpha
Helix 25	25	B	397	408	Right-handed alpha
Helix 26	26	B	425	431	Right-handed alpha
Helix 27	27	B	432	434	Right-handed 310
Helix 28	28	B	456	472	Right-handed alpha
Helix 29	29	B	496	501	Right-handed 310
Helix 30	30	B	502	522	Right-handed alpha
Helix 31	31	B	538	543	Right-handed alpha
Helix 32	32	B	555	568	Right-handed alpha
Helix 33	33	B	571	573	Right-handed 310
Helix 34	34	B	592	601	Right-handed alpha
Helix 35	35	B	610	614	Right-handed 310
Helix 36	36	B	615	639	Right-handed alpha
Helix 37	37	B	646	649	Right-handed 310
Helix 38	38	B	704	710	Right-handed alpha
Helix 39	39	C	30	32	Right-handed 310
Helix 40	40	C	130	132	Right-handed 310
Helix 41	41	C	307	323	Right-handed alpha
Helix 42	42	C	339	344	Right-handed alpha
Helix 43	43	C	348	362	Right-handed alpha
Helix 44	44	C	397	408	Right-handed alpha
Helix 45	45	C	425	431	Right-handed alpha
Helix 46	46	C	432	434	Right-handed 310
Helix 47	47	C	456	472	Right-handed alpha
Helix 48	48	C	496	501	Right-handed 310
Helix 49	49	C	502	522	Right-handed alpha
Helix 50	50	C	538	543	Right-handed alpha
Helix 51	51	C	555	568	Right-handed alpha
Helix 52	52	C	571	573	Right-handed 310
Helix 53	53	C	592	601	Right-handed alpha
Helix 54	54	C	610	614	Right-handed 310
Helix 55	55	C	615	639	Right-handed alpha
Helix 56	56	C	646	649	Right-handed 310
Helix 57	57	C	704	710	Right-handed alpha
Helix 58	58	D	30	32	Right-handed 310
Helix 59	59	D	130	132	Right-handed 310
Helix 60	60	D	306	323	Right-handed alpha
Helix 61	61	D	339	344	Right-handed alpha
Helix 62	62	D	348	363	Right-handed alpha
Helix 63	63	D	396	408	Right-handed alpha
Helix 64	64	D	425	431	Right-handed alpha
Helix 65	65	D	432	434	Right-handed 310
Helix 66	66	D	456	472	Right-handed alpha
Helix 67	67	D	496	501	Right-handed 310
Helix 68	68	D	502	522	Right-handed alpha
Helix 69	69	D	538	545	Right-handed alpha
Helix 70	70	D	555	567	Right-handed alpha
Helix 71	71	D	571	573	Right-handed 310
Helix 72	72	D	592	601	Right-handed alpha
Helix 73	73	D	610	614	Right-handed 310
Helix 74	74	D	615	639	Right-handed alpha
Helix 75	75	D	646	649	Right-handed 310
Helix 76	76	D	704	710	Right-handed alpha

There are 40 sheets in PDB entry 2XN1. Click on sheet of interest to get list of strands forming it: AA, AB, AC, BA, BB, AD, AE, AF, AG, AH, AI, AJ, BC, BD, BE, BF, BG, BH, BI, BJ, CA, CB, CC, A, DB, CD, CE, CF, CG, CH, CI, CJ, C, DD, DE, DF, G, DH, DI, DJ,

There are 4 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	6	9	first strand
Strand 2	A	14	18	anti-parallel
Strand 3	A	22	29	anti-parallel
Strand 4	A	33	41	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	93	96	first strand
Strand 2	A	177	189	anti-parallel

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There are 2 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	286	288	first strand
Strand 2	A	177	189	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	93	96	first strand
Strand 2	B	177	189	anti-parallel

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There are 2 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	286	288	first strand
Strand 2	B	177	189	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	107	115	first strand
Strand 2	A	134	143	anti-parallel
Strand 3	A	148	157	anti-parallel
Strand 4	A	162	171	anti-parallel
Strand 5	A	293	295	anti-parallel

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There are 9 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	107	115	first strand
Strand 2	A	134	143	anti-parallel
Strand 3	A	148	157	anti-parallel
Strand 4	A	162	171	anti-parallel
Strand 5	A	299	304	anti-parallel
Strand 6	A	250	255	anti-parallel
Strand 7	A	235	239	anti-parallel
Strand 8	A	195	198	anti-parallel
Strand 9	A	210	213	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	293	295	first strand
Strand 2	A	162	171	anti-parallel

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There are 9 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	336	338	first strand
Strand 2	A	366	369	parallel
Strand 3	A	411	416	parallel
Strand 4	A	478	481	parallel
Strand 5	A	526	529	parallel
Strand 6	A	547	549	parallel
Strand 7	A	575	580	parallel
Strand 8	A	604	608	parallel
Strand 9	A	336	338	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	420	421	first strand
Strand 2	A	450	451	anti-parallel

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There are 6 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	640	645	first strand
Strand 2	A	651	657	anti-parallel
Strand 3	A	663	670	anti-parallel
Strand 4	A	722	730	anti-parallel
Strand 5	A	692	695	anti-parallel
Strand 6	A	701	703	anti-parallel

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There are 2 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	681	682	first strand
Strand 2	A	712	713	anti-parallel

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There are 4 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	6	9	first strand
Strand 2	B	14	18	anti-parallel
Strand 3	B	22	29	anti-parallel
Strand 4	B	33	41	anti-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	107	115	first strand
Strand 2	B	134	143	anti-parallel
Strand 3	B	148	157	anti-parallel
Strand 4	B	162	171	anti-parallel
Strand 5	B	293	295	anti-parallel

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There are 9 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	107	115	first strand
Strand 2	B	134	143	anti-parallel
Strand 3	B	148	157	anti-parallel
Strand 4	B	162	171	anti-parallel
Strand 5	B	299	304	anti-parallel
Strand 6	B	250	255	anti-parallel
Strand 7	B	232	239	anti-parallel
Strand 8	B	195	200	anti-parallel
Strand 9	B	210	213	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	293	295	first strand
Strand 2	B	162	171	anti-parallel

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There are 9 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	336	338	first strand
Strand 2	B	366	369	parallel
Strand 3	B	411	416	parallel
Strand 4	B	478	481	parallel
Strand 5	B	526	529	parallel
Strand 6	B	547	549	parallel
Strand 7	B	575	580	parallel
Strand 8	B	604	608	parallel
Strand 9	B	336	338	parallel

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There are 2 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	420	421	first strand
Strand 2	B	450	451	anti-parallel

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There are 6 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	640	645	first strand
Strand 2	B	651	657	anti-parallel
Strand 3	B	663	670	anti-parallel
Strand 4	B	722	730	anti-parallel
Strand 5	B	692	695	anti-parallel
Strand 6	B	701	703	anti-parallel

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There are 2 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	681	682	first strand
Strand 2	B	712	713	anti-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	6	9	first strand
Strand 2	C	14	18	anti-parallel
Strand 3	C	22	29	anti-parallel
Strand 4	C	33	41	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	93	96	first strand
Strand 2	C	177	189	anti-parallel

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There are 2 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	286	288	first strand
Strand 2	C	177	189	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	93	96	first strand
Strand 2	D	177	189	anti-parallel

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There are 2 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	286	288	first strand
Strand 2	D	177	189	parallel

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There are 5 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	107	115	first strand
Strand 2	C	134	143	anti-parallel
Strand 3	C	148	157	anti-parallel
Strand 4	C	162	171	anti-parallel
Strand 5	C	293	295	anti-parallel

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There are 9 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	107	115	first strand
Strand 2	C	134	143	anti-parallel
Strand 3	C	148	157	anti-parallel
Strand 4	C	162	171	anti-parallel
Strand 5	C	299	304	anti-parallel
Strand 6	C	250	255	anti-parallel
Strand 7	C	235	239	anti-parallel
Strand 8	C	195	198	anti-parallel
Strand 9	C	210	213	anti-parallel

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There are 2 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	293	295	first strand
Strand 2	C	162	171	anti-parallel

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There are 9 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	336	338	first strand
Strand 2	C	366	369	parallel
Strand 3	C	411	416	parallel
Strand 4	C	478	481	parallel
Strand 5	C	526	529	parallel
Strand 6	C	547	549	parallel
Strand 7	C	575	580	parallel
Strand 8	C	604	608	parallel
Strand 9	C	336	338	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	420	421	first strand
Strand 2	C	450	451	anti-parallel

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There are 6 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	640	645	first strand
Strand 2	C	651	657	anti-parallel
Strand 3	C	663	670	anti-parallel
Strand 4	C	722	730	anti-parallel
Strand 5	C	692	695	anti-parallel
Strand 6	C	701	703	anti-parallel

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There are 2 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	681	682	first strand
Strand 2	C	712	713	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	6	9	first strand
Strand 2	D	14	18	anti-parallel
Strand 3	D	22	29	anti-parallel
Strand 4	D	33	41	anti-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	107	115	first strand
Strand 2	D	134	143	anti-parallel
Strand 3	D	148	157	anti-parallel
Strand 4	D	162	171	anti-parallel
Strand 5	D	293	295	anti-parallel

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There are 9 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	107	115	first strand
Strand 2	D	134	143	anti-parallel
Strand 3	D	148	157	anti-parallel
Strand 4	D	162	171	anti-parallel
Strand 5	D	299	304	anti-parallel
Strand 6	D	250	255	anti-parallel
Strand 7	D	235	239	anti-parallel
Strand 8	D	195	198	anti-parallel
Strand 9	D	210	213	anti-parallel

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There are 2 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	293	295	first strand
Strand 2	D	162	171	anti-parallel

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There are 9 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	336	338	first strand
Strand 2	D	366	369	parallel
Strand 3	D	411	416	parallel
Strand 4	D	478	481	parallel
Strand 5	D	526	529	first strand
Strand 6	D	547	549	first strand
Strand 7	D	575	580	first strand
Strand 8	D	604	608	first strand
Strand 9	D	336	338	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	420	421	first strand
Strand 2	D	450	451	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	640	645	first strand
Strand 2	D	651	657	anti-parallel
Strand 3	D	663	670	anti-parallel
Strand 4	D	722	730	anti-parallel
Strand 5	D	692	695	anti-parallel
Strand 6	D	701	703	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	681	682	first strand
Strand 2	D	712	713	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: 2XN1

Analysis of interatomic Contacts of Structural Units in PDB entry:
2XN1