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

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 2XKN entry

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

Chain ID	Initial residue	Terminal residue
A	ASP 1	GLU 213
B	GLU 1	PRO 215
C	ASP 1	GLU 213
D	GLU 1	PRO 215

There are 14 helices in PDB entry 2XKN. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	79	83	Right-handed 310
Helix 2	2	A	121	128	Right-handed alpha
Helix 3	3	A	183	188	Right-handed alpha
Helix 4	4	B	28	32	Right-handed 310
Helix 5	5	B	87	91	Right-handed 310
Helix 6	6	B	159	161	Right-handed 310
Helix 7	7	B	203	206	Right-handed 310
Helix 8	8	C	79	83	Right-handed 310
Helix 9	9	C	121	127	Right-handed alpha
Helix 10	10	C	183	187	Right-handed alpha
Helix 11	11	D	28	32	Right-handed 310
Helix 12	12	D	87	91	Right-handed 310
Helix 13	13	D	159	161	Right-handed 310
Helix 14	14	D	203	206	Right-handed 310

There are 28 sheets in PDB entry 2XKN. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, BA, BB, BC, BD, BE, BF, BG, BH, CA, CB, CC, CD, CE, CF, A, DB, C, DD, DE, DF, G, DH,

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	4	5	first strand
Strand 2	A	19	25	anti-parallel
Strand 3	A	70	75	anti-parallel
Strand 4	A	62	67	anti-parallel

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There are 4 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	10	13	first strand
Strand 2	A	102	106	parallel
Strand 3	A	84	90	anti-parallel
Strand 4	A	97	98	anti-parallel

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There are 6 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	10	13	first strand
Strand 2	A	102	106	parallel
Strand 3	A	84	90	anti-parallel
Strand 4	A	33	38	anti-parallel
Strand 5	A	44	49	anti-parallel
Strand 6	A	53	54	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	97	98	first strand
Strand 2	A	84	90	anti-parallel

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There are 4 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	114	118	first strand
Strand 2	A	129	139	anti-parallel
Strand 3	A	173	182	anti-parallel
Strand 4	A	159	163	anti-parallel

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There are 4 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	153	155	first strand
Strand 2	A	145	150	anti-parallel
Strand 3	A	191	197	anti-parallel
Strand 4	A	205	210	anti-parallel

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There are 4 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	3	7	first strand
Strand 2	B	18	25	anti-parallel
Strand 3	B	78	83	anti-parallel
Strand 4	B	68	73	anti-parallel

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There are 4 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	11	12	first strand
Strand 2	B	110	114	parallel
Strand 3	B	92	99	anti-parallel
Strand 4	B	103	104	anti-parallel

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There are 6 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	11	12	first strand
Strand 2	B	110	114	parallel
Strand 3	B	92	99	anti-parallel
Strand 4	B	34	39	anti-parallel
Strand 5	B	45	51	anti-parallel
Strand 6	B	58	59	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	103	104	first strand
Strand 2	B	92	99	anti-parallel

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There are 4 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	123	127	first strand
Strand 2	B	138	148	anti-parallel
Strand 3	B	177	187	anti-parallel
Strand 4	B	172	174	parallel

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There are 4 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	123	127	first strand
Strand 2	B	138	148	anti-parallel
Strand 3	B	177	187	anti-parallel
Strand 4	B	166	168	anti-parallel

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There are 2 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	172	174	first strand
Strand 2	B	177	187	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	154	157	first strand
Strand 2	B	197	202	anti-parallel
Strand 3	B	207	212	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	4	5	first strand
Strand 2	C	19	25	anti-parallel
Strand 3	C	70	75	anti-parallel
Strand 4	C	62	67	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	10	13	first strand
Strand 2	C	102	106	parallel
Strand 3	C	84	90	anti-parallel
Strand 4	C	97	98	anti-parallel

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There are 6 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	10	13	first strand
Strand 2	C	102	106	parallel
Strand 3	C	84	90	anti-parallel
Strand 4	C	33	38	anti-parallel
Strand 5	C	44	49	anti-parallel
Strand 6	C	53	54	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	97	98	first strand
Strand 2	C	84	90	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	114	118	first strand
Strand 2	C	129	139	anti-parallel
Strand 3	C	173	182	anti-parallel
Strand 4	C	159	163	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	153	155	first strand
Strand 2	C	145	150	anti-parallel
Strand 3	C	191	197	anti-parallel
Strand 4	C	205	210	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	3	7	first strand
Strand 2	D	18	25	anti-parallel
Strand 3	D	78	83	anti-parallel
Strand 4	D	68	73	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	11	12	first strand
Strand 2	D	110	114	anti-parallel
Strand 3	D	92	99	anti-parallel
Strand 4	D	103	106	anti-parallel

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There are 6 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	11	12	first strand
Strand 2	D	110	114	anti-parallel
Strand 3	D	92	99	anti-parallel
Strand 4	D	34	39	anti-parallel
Strand 5	D	45	51	anti-parallel
Strand 6	D	58	59	anti-parallel

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There are 2 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	103	106	first strand
Strand 2	D	92	99	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	123	127	first strand
Strand 2	D	138	148	anti-parallel
Strand 3	D	177	187	anti-parallel
Strand 4	D	172	174	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	123	127	first strand
Strand 2	D	138	148	anti-parallel
Strand 3	D	177	187	anti-parallel
Strand 4	D	166	168	anti-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	172	174	first strand
Strand 2	D	177	187	parallel

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There are 3 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	154	157	first strand
Strand 2	D	197	202	anti-parallel
Strand 3	D	207	212	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: 2XKN

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