Analysis of interatomic Contacts of Structural Units in PDB entry:
2XQ4

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 2XQ4 entry

There are 4 chains in PDB entry 2XQ4 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 7	PHE 316
B	PRO 7	PHE 316
C	PRO 7	PHE 316
D	PRO 7	ASN 306

There are 43 helices in PDB entry 2XQ4. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	49	52	Right-handed 310
Helix 2	2	A	114	120	Right-handed 310
Helix 3	3	A	195	200	Right-handed alpha
Helix 4	4	A	200	212	Right-handed alpha
Helix 5	5	A	213	216	Right-handed 310
Helix 6	6	A	219	244	Right-handed alpha
Helix 7	7	A	252	264	Right-handed alpha
Helix 8	8	A	265	275	Right-handed alpha
Helix 9	9	A	283	314	Right-handed alpha
Helix 10	10	B	49	52	Right-handed 310
Helix 11	11	B	114	120	Right-handed 310
Helix 12	12	B	200	212	Right-handed alpha
Helix 13	13	B	213	216	Right-handed 310
Helix 14	14	B	220	244	Right-handed alpha
Helix 15	15	B	252	264	Right-handed alpha
Helix 16	16	B	265	275	Right-handed alpha
Helix 17	17	B	283	314	Right-handed alpha
Helix 18	18	C	49	52	Right-handed 310
Helix 19	19	C	114	120	Right-handed 310
Helix 20	20	C	195	200	Right-handed alpha
Helix 21	21	C	200	212	Right-handed alpha
Helix 22	22	C	213	216	Right-handed 310
Helix 23	23	C	220	244	Right-handed alpha
Helix 24	24	C	252	264	Right-handed alpha
Helix 25	25	C	265	275	Right-handed alpha
Helix 26	26	C	283	314	Right-handed alpha
Helix 27	27	D	49	52	Right-handed 310
Helix 28	28	D	114	120	Right-handed 310
Helix 29	29	D	200	212	Right-handed alpha
Helix 30	30	D	213	216	Right-handed 310
Helix 31	31	D	220	244	Right-handed alpha
Helix 32	32	D	252	264	Right-handed alpha
Helix 33	33	D	265	275	Right-handed alpha
Helix 34	34	D	283	314	Right-handed alpha
Helix 35	35	E	49	52	Right-handed 310
Helix 36	36	E	114	120	Right-handed 310
Helix 37	37	E	195	200	Right-handed alpha
Helix 38	38	E	200	212	Right-handed alpha
Helix 39	39	E	213	216	Right-handed 310
Helix 40	40	E	220	244	Right-handed alpha
Helix 41	41	E	252	264	Right-handed alpha
Helix 42	42	E	265	275	Right-handed alpha
Helix 43	43	E	283	314	Right-handed alpha

There are 30 sheets in PDB entry 2XQ4. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, BA, BB, BC, BD, BE, BF, CA, CB, CC, CD, CE, CF, A, DB, C, DD, DE, DF, EA, EB, EC, ED, EE, EF,

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	15	19	first strand
Strand 2	A	138	142	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	21	30	first strand
Strand 2	A	35	47	anti-parallel

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There are 5 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	63	64	first strand
Strand 2	A	87	93	anti-parallel
Strand 3	A	98	104	anti-parallel
Strand 4	A	35	47	anti-parallel
Strand 5	A	106	109	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	63	64	first strand
Strand 2	A	87	93	anti-parallel
Strand 3	A	98	104	anti-parallel
Strand 4	A	35	47	anti-parallel
Strand 5	A	21	30	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	106	109	first strand
Strand 2	A	35	47	parallel

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There are 3 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	122	127	first strand
Strand 2	A	179	191	anti-parallel
Strand 3	A	159	174	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	15	19	first strand
Strand 2	B	138	142	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	21	30	first strand
Strand 2	B	35	47	anti-parallel

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There are 5 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	63	64	first strand
Strand 2	B	87	93	anti-parallel
Strand 3	B	98	104	anti-parallel
Strand 4	B	35	47	anti-parallel
Strand 5	B	106	109	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	63	64	first strand
Strand 2	B	87	93	anti-parallel
Strand 3	B	98	104	anti-parallel
Strand 4	B	35	47	anti-parallel
Strand 5	B	21	30	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	106	109	first strand
Strand 2	B	35	47	parallel

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There are 3 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	122	127	first strand
Strand 2	B	179	191	anti-parallel
Strand 3	B	159	174	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	15	19	first strand
Strand 2	C	138	142	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	21	30	first strand
Strand 2	C	35	47	anti-parallel

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There are 5 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	63	64	first strand
Strand 2	C	87	93	anti-parallel
Strand 3	C	98	104	anti-parallel
Strand 4	C	35	47	anti-parallel
Strand 5	C	106	109	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	63	64	first strand
Strand 2	C	87	93	anti-parallel
Strand 3	C	98	104	anti-parallel
Strand 4	C	35	47	anti-parallel
Strand 5	C	21	30	anti-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	106	109	first strand
Strand 2	C	35	47	parallel

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There are 3 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	122	127	first strand
Strand 2	C	179	191	anti-parallel
Strand 3	C	159	174	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	15	19	first strand
Strand 2	D	138	142	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	21	30	first strand
Strand 2	D	35	47	anti-parallel

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There are 5 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	63	64	first strand
Strand 2	D	87	93	anti-parallel
Strand 3	D	98	104	anti-parallel
Strand 4	D	35	47	anti-parallel
Strand 5	D	106	109	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	63	64	first strand
Strand 2	D	87	93	anti-parallel
Strand 3	D	98	104	anti-parallel
Strand 4	D	35	47	anti-parallel
Strand 5	D	21	30	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	106	109	first strand
Strand 2	D	35	47	parallel

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There are 3 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	122	127	first strand
Strand 2	D	179	191	anti-parallel
Strand 3	D	159	174	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	15	19	first strand
Strand 2	E	138	142	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	21	30	first strand
Strand 2	E	35	47	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	63	64	first strand
Strand 2	E	87	93	anti-parallel
Strand 3	E	98	104	anti-parallel
Strand 4	E	35	47	anti-parallel
Strand 5	E	106	109	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	63	64	first strand
Strand 2	E	87	93	anti-parallel
Strand 3	E	98	104	anti-parallel
Strand 4	E	35	47	anti-parallel
Strand 5	E	21	30	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	106	109	first strand
Strand 2	E	35	47	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	122	127	first strand
Strand 2	E	179	191	anti-parallel
Strand 3	E	159	174	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: 2XQ4

Analysis of interatomic Contacts of Structural Units in PDB entry:
2XQ4