Analysis of interatomic Contacts of Structural Units in PDB entry:
2XB2

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 2XB2 entry

There are 13 chains in PDB entry 2XB2 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASP 22	ILE 411
C	ASP 4	ILE 146
D	PRO 66	PRO 154
E	U 1	U 8
F	ALA 1	ARG 3
G	ILE 418	GLY 432
R	U 1	U 7
S	HIS 169	SER 246
T	HIS 169	HIS 248
U	ILE 418	ARG 434
X	ASP 22	ILE 411
Y	ASP 4	ILE 146
Z	PRO 66	PRO 154

There are 56 helices in PDB entry 2XB2. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	40	44	Right-handed 310
Helix 2	2	A	46	57	Right-handed alpha
Helix 3	3	A	62	73	Right-handed alpha
Helix 4	4	A	87	99	Right-handed alpha
Helix 5	5	A	115	130	Right-handed alpha
Helix 6	6	A	131	134	Right-handed 310
Helix 7	7	A	145	156	Right-handed alpha
Helix 8	8	A	163	173	Right-handed alpha
Helix 9	9	A	188	193	Right-handed alpha
Helix 10	10	A	197	206	Right-handed alpha
Helix 11	11	A	222	229	Right-handed alpha
Helix 12	12	A	260	276	Right-handed alpha
Helix 13	13	A	286	300	Right-handed alpha
Helix 14	14	A	312	326	Right-handed alpha
Helix 15	15	A	335	338	Right-handed 310
Helix 16	16	A	357	366	Right-handed alpha
Helix 17	17	A	369	373	Right-handed 310
Helix 18	18	A	385	396	Right-handed alpha
Helix 19	19	A	406	411	Right-handed alpha
Helix 20	20	C	39	43	Right-handed 310
Helix 21	21	C	53	68	Right-handed alpha
Helix 22	22	C	69	72	Right-handed 310
Helix 23	23	C	106	112	Right-handed alpha
Helix 24	24	C	115	142	Right-handed alpha
Helix 25	25	D	85	95	Right-handed alpha
Helix 26	26	D	123	135	Right-handed alpha
Helix 27	27	S	232	240	Right-handed alpha
Helix 28	28	T	225	229	Right-handed 310
Helix 29	29	T	232	240	Right-handed alpha
Helix 30	30	X	40	44	Right-handed 310
Helix 31	31	X	46	56	Right-handed alpha
Helix 32	32	X	62	73	Right-handed alpha
Helix 33	33	X	87	99	Right-handed alpha
Helix 34	34	X	115	130	Right-handed alpha
Helix 35	35	X	131	134	Right-handed 310
Helix 36	36	X	145	156	Right-handed alpha
Helix 37	37	X	163	173	Right-handed alpha
Helix 38	38	X	188	193	Right-handed alpha
Helix 39	39	X	197	206	Right-handed alpha
Helix 40	40	X	222	228	Right-handed alpha
Helix 41	41	X	229	231	Right-handed 310
Helix 42	42	X	260	276	Right-handed alpha
Helix 43	43	X	286	300	Right-handed alpha
Helix 44	44	X	312	326	Right-handed alpha
Helix 45	45	X	335	338	Right-handed 310
Helix 46	46	X	357	366	Right-handed alpha
Helix 47	47	X	369	373	Right-handed 310
Helix 48	48	X	385	396	Right-handed alpha
Helix 49	49	X	406	411	Right-handed alpha
Helix 50	50	Y	39	43	Right-handed 310
Helix 51	51	Y	53	68	Right-handed alpha
Helix 52	52	Y	69	72	Right-handed 310
Helix 53	53	Y	106	112	Right-handed alpha
Helix 54	54	Y	115	142	Right-handed alpha
Helix 55	55	Z	85	95	Right-handed alpha
Helix 56	56	Z	123	135	Right-handed alpha

There are 10 sheets in PDB entry 2XB2. Click on sheet of interest to get list of strands forming it: AA, AB, CA, A, DB, XA, XB, YA, ZA, ZB,

There are 7 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	137	140	first strand
Strand 2	A	159	162	parallel
Strand 3	A	109	112	parallel
Strand 4	A	183	187	parallel
Strand 5	A	213	218	parallel
Strand 6	A	78	81	parallel
Strand 7	A	237	239	parallel

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There are 7 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	305	307	first strand
Strand 2	A	330	333	parallel
Strand 3	A	280	283	parallel
Strand 4	A	348	351	parallel
Strand 5	A	375	382	parallel
Strand 6	A	251	258	parallel
Strand 7	A	401	402	parallel

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There are 7 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	95	101	first strand
Strand 2	C	85	92	anti-parallel
Strand 3	C	6	15	anti-parallel
Strand 4	C	18	26	anti-parallel
Strand 5	C	31	37	anti-parallel
Strand 6	C	46	52	anti-parallel
Strand 7	D	150	151	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	99	103	first strand
Strand 2	D	116	121	anti-parallel
Strand 3	D	73	78	anti-parallel
Strand 4	D	145	148	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	138	139	first strand
Strand 2	D	142	143	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	X	137	140	first strand
Strand 2	X	159	162	parallel
Strand 3	X	109	112	parallel
Strand 4	X	183	187	parallel
Strand 5	X	213	218	parallel
Strand 6	X	78	81	parallel
Strand 7	X	237	239	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	X	305	307	first strand
Strand 2	X	330	333	parallel
Strand 3	X	280	283	parallel
Strand 4	X	348	351	parallel
Strand 5	X	375	382	parallel
Strand 6	X	251	258	parallel
Strand 7	X	401	402	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Y	95	101	first strand
Strand 2	Y	85	92	anti-parallel
Strand 3	Y	7	15	anti-parallel
Strand 4	Y	18	26	anti-parallel
Strand 5	Y	31	37	anti-parallel
Strand 6	Y	46	52	anti-parallel
Strand 7	Z	150	151	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Z	99	103	first strand
Strand 2	Z	116	121	anti-parallel
Strand 3	Z	73	78	anti-parallel
Strand 4	Z	145	148	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Z	138	139	first strand
Strand 2	Z	142	143	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: 2XB2

Analysis of interatomic Contacts of Structural Units in PDB entry:
2XB2