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

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 2XRC entry

There are 4 chains in PDB entry 2XRC (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLU 8	VAL 555
B	ASP 9	VAL 565
C	GLU 8	VAL 555
D	LEU 10	VAL 555

There are 45 helices in PDB entry 2XRC. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	25	28	Right-handed 310
Helix 2	2	A	45	49	Right-handed 310
Helix 3	3	A	66	77	Right-handed alpha
Helix 4	4	A	128	139	Right-handed alpha
Helix 5	5	A	174	178	Right-handed 310
Helix 6	6	A	255	259	Right-handed 310
Helix 7	7	A	293	302	Right-handed alpha
Helix 8	8	A	360	365	Right-handed alpha
Helix 9	9	A	477	482	Right-handed alpha
Helix 10	10	A	547	555	Right-handed alpha
Helix 11	11	B	12	16	Right-handed 310
Helix 12	12	B	45	49	Right-handed 310
Helix 13	13	B	66	77	Right-handed alpha
Helix 14	14	B	128	140	Right-handed alpha
Helix 15	15	B	174	178	Right-handed 310
Helix 16	16	B	218	222	Right-handed 310
Helix 17	17	B	232	236	Right-handed 310
Helix 18	18	B	257	259	Right-handed 310
Helix 19	19	B	269	273	Right-handed 310
Helix 20	20	B	292	304	Right-handed alpha
Helix 21	21	B	361	366	Right-handed alpha
Helix 22	22	B	476	480	Right-handed 310
Helix 23	23	B	547	555	Right-handed alpha
Helix 24	24	C	12	17	Right-handed alpha
Helix 25	25	C	45	49	Right-handed 310
Helix 26	26	C	66	77	Right-handed alpha
Helix 27	27	C	128	139	Right-handed alpha
Helix 28	28	C	220	222	Right-handed 310
Helix 29	29	C	232	236	Right-handed 310
Helix 30	30	C	257	259	Right-handed 310
Helix 31	31	C	269	273	Right-handed 310
Helix 32	32	C	293	302	Right-handed alpha
Helix 33	33	C	477	482	Right-handed alpha
Helix 34	34	C	483	485	Right-handed 310
Helix 35	35	C	547	555	Right-handed alpha
Helix 36	36	D	45	49	Right-handed 310
Helix 37	37	D	66	77	Right-handed alpha
Helix 38	38	D	128	138	Right-handed alpha
Helix 39	39	D	174	178	Right-handed 310
Helix 40	40	D	218	222	Right-handed 310
Helix 41	41	D	232	236	Right-handed 310
Helix 42	42	D	269	273	Right-handed 310
Helix 43	43	D	293	302	Right-handed alpha
Helix 44	44	D	363	367	Right-handed 310
Helix 45	45	D	547	555	Right-handed alpha

There are 37 sheets in PDB entry 2XRC. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, AI, BA, BB, BC, BD, BE, BF, BG, BH, CA, CB, CC, CD, CE, CF, CG, CH, CI, CJ, A, DB, C, DD, DE, DF, G, DH, DI, DJ,

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	34	37	first strand
Strand 2	A	40	43	anti-parallel

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There are 3 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	62	64	first strand
Strand 2	A	56	58	anti-parallel
Strand 3	A	82	85	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	95	99	first strand
Strand 2	A	106	112	anti-parallel

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There are 2 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	120	121	first strand
Strand 2	A	106	112	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	193	195	first strand
Strand 2	A	106	112	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	165	167	first strand
Strand 2	A	179	181	anti-parallel

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There are 2 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	246	248	first strand
Strand 2	A	252	254	anti-parallel

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There are 6 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	338	341	first strand
Strand 2	A	372	375	anti-parallel
Strand 3	A	391	399	anti-parallel
Strand 4	A	413	417	anti-parallel
Strand 5	A	356	359	anti-parallel
Strand 6	A	350	353	anti-parallel

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There are 7 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	448	452	first strand
Strand 2	A	468	473	anti-parallel
Strand 3	A	490	495	anti-parallel
Strand 4	A	539	543	anti-parallel
Strand 5	A	520	528	anti-parallel
Strand 6	A	510	514	anti-parallel
Strand 7	A	448	452	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	34	37	first strand
Strand 2	B	40	43	anti-parallel

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There are 3 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	62	64	first strand
Strand 2	B	56	58	anti-parallel
Strand 3	B	82	84	anti-parallel

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There are 3 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	95	99	first strand
Strand 2	B	106	112	anti-parallel
Strand 3	B	193	195	anti-parallel

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There are 2 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	121	122	first strand
Strand 2	B	163	164	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	209	210	first strand
Strand 2	B	216	217	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	245	248	first strand
Strand 2	B	252	255	anti-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	336	340	first strand
Strand 2	B	346	353	anti-parallel
Strand 3	B	356	359	anti-parallel
Strand 4	B	413	417	anti-parallel
Strand 5	B	391	399	anti-parallel
Strand 6	B	373	375	anti-parallel
Strand 7	B	336	340	anti-parallel

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There are 7 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	448	452	first strand
Strand 2	B	468	473	anti-parallel
Strand 3	B	490	495	anti-parallel
Strand 4	B	539	543	anti-parallel
Strand 5	B	520	528	anti-parallel
Strand 6	B	510	514	anti-parallel
Strand 7	B	448	452	anti-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	34	37	first strand
Strand 2	C	40	43	anti-parallel

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There are 3 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	63	64	first strand
Strand 2	C	56	58	anti-parallel
Strand 3	C	82	85	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	95	103	first strand
Strand 2	C	106	112	anti-parallel

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There are 2 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	119	121	first strand
Strand 2	C	106	112	parallel

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There are 2 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	193	195	first strand
Strand 2	C	106	112	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	164	167	first strand
Strand 2	C	179	182	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	208	210	first strand
Strand 2	C	216	218	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	245	248	first strand
Strand 2	C	252	255	anti-parallel

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There are 7 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	336	340	first strand
Strand 2	C	346	351	anti-parallel
Strand 3	C	356	359	anti-parallel
Strand 4	C	413	417	anti-parallel
Strand 5	C	391	399	anti-parallel
Strand 6	C	373	376	anti-parallel
Strand 7	C	336	340	anti-parallel

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There are 7 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	520	521	first strand
Strand 2	C	511	514	anti-parallel
Strand 3	C	448	453	anti-parallel
Strand 4	C	467	473	anti-parallel
Strand 5	C	490	494	anti-parallel
Strand 6	C	539	543	anti-parallel
Strand 7	C	524	528	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	34	37	first strand
Strand 2	D	40	43	anti-parallel

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There are 3 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	63	64	first strand
Strand 2	D	56	58	anti-parallel
Strand 3	D	82	85	anti-parallel

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There are 2 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	95	99	first strand
Strand 2	D	106	112	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	179	182	first strand
Strand 2	D	163	167	anti-parallel
Strand 3	D	120	122	parallel
Strand 4	D	106	112	anti-parallel
Strand 5	D	193	195	parallel

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There are 5 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	179	182	first strand
Strand 2	D	163	167	anti-parallel
Strand 3	D	120	122	parallel
Strand 4	D	106	112	anti-parallel
Strand 5	D	95	99	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	193	195	first strand
Strand 2	D	106	112	parallel

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There are 2 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	209	210	first strand
Strand 2	D	216	217	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	245	247	first strand
Strand 2	D	253	255	anti-parallel

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There are 7 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	336	341	first strand
Strand 2	D	346	351	anti-parallel
Strand 3	D	356	359	anti-parallel
Strand 4	D	413	417	anti-parallel
Strand 5	D	391	399	anti-parallel
Strand 6	D	372	375	anti-parallel
Strand 7	D	336	341	anti-parallel

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There are 7 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	448	451	first strand
Strand 2	D	470	473	anti-parallel
Strand 3	D	490	495	first strand
Strand 4	D	510	514	first strand
Strand 5	D	520	528	first strand
Strand 6	D	539	543	first strand
Strand 7	D	490	495	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: 2XRC

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