Analysis of interatomic Contacts of Structural Units in PDB entry:
2X1W

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 2X1W entry

There are 8 chains in PDB entry 2X1W (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	THR 116	SER 213
B	GLU 117	LYS 214
C	LEU 119	LEU 215
D	GLU 117	LEU 215
L	SER 123	GLU 326
M	GLY 134	GLU 326
N	PRO 124	GLU 326
O	SER 123	HIS 325

There are 15 helices in PDB entry 2X1W. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	116	130	Right-handed alpha
Helix 2	2	B	119	130	Right-handed alpha
Helix 3	3	B	140	144	Right-handed alpha
Helix 4	4	C	119	130	Right-handed alpha
Helix 5	5	C	140	144	Right-handed alpha
Helix 6	6	D	117	130	Right-handed alpha
Helix 7	7	D	140	144	Right-handed alpha
Helix 8	8	L	190	192	Right-handed 310
Helix 9	9	L	298	302	Right-handed 310
Helix 10	10	M	190	192	Right-handed 310
Helix 11	11	M	298	302	Right-handed 310
Helix 12	12	N	190	192	Right-handed 310
Helix 13	13	N	298	302	Right-handed 310
Helix 14	14	O	190	192	Right-handed 310
Helix 15	15	O	298	302	Right-handed 310

There are 30 sheets in PDB entry 2X1W. Click on sheet of interest to get list of strands forming it: AA, AB, BA, BB, CA, CB, A, DB, LA, LB, LC, LD, LE, LF, MA, MB, MC, MD, NA, NB, NC, ND, NE, NF, OA, OB, OC, OD, OE, OF,

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	132	139	first strand
Strand 2	A	156	163	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	151	153	first strand
Strand 2	A	172	188	anti-parallel
Strand 3	A	197	212	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	132	139	first strand
Strand 2	B	156	163	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	150	153	first strand
Strand 2	B	171	189	anti-parallel
Strand 3	B	197	213	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	132	139	first strand
Strand 2	C	156	163	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	150	153	first strand
Strand 2	C	171	189	anti-parallel
Strand 3	C	197	213	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	132	139	first strand
Strand 2	D	156	163	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	150	153	first strand
Strand 2	D	171	189	anti-parallel
Strand 3	D	197	213	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	134	138	first strand
Strand 2	L	214	218	parallel
Strand 3	L	197	202	anti-parallel
Strand 4	L	209	210	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	134	138	first strand
Strand 2	L	214	218	parallel
Strand 3	L	197	202	anti-parallel
Strand 4	L	159	164	anti-parallel
Strand 5	L	168	170	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	209	210	first strand
Strand 2	L	197	202	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	145	148	first strand
Strand 2	L	184	188	anti-parallel
Strand 3	L	178	180	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	223	229	first strand
Strand 2	L	242	250	anti-parallel
Strand 3	L	286	294	anti-parallel
Strand 4	L	270	277	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	234	237	first strand
Strand 2	L	315	325	parallel
Strand 3	L	303	310	anti-parallel
Strand 4	L	257	261	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	135	138	first strand
Strand 2	M	214	218	parallel
Strand 3	M	197	201	anti-parallel
Strand 4	M	160	164	anti-parallel
Strand 5	M	168	170	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	145	148	first strand
Strand 2	M	185	188	anti-parallel
Strand 3	M	178	179	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	223	229	first strand
Strand 2	M	242	251	anti-parallel
Strand 3	M	285	294	anti-parallel
Strand 4	M	270	277	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	235	237	first strand
Strand 2	M	315	325	parallel
Strand 3	M	303	310	anti-parallel
Strand 4	M	257	261	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	134	138	first strand
Strand 2	N	214	218	parallel
Strand 3	N	197	204	anti-parallel
Strand 4	N	207	210	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	134	138	first strand
Strand 2	N	214	218	parallel
Strand 3	N	197	204	anti-parallel
Strand 4	N	159	164	anti-parallel
Strand 5	N	168	170	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	207	210	first strand
Strand 2	N	197	204	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	145	148	first strand
Strand 2	N	185	188	anti-parallel
Strand 3	N	178	179	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	223	229	first strand
Strand 2	N	242	251	anti-parallel
Strand 3	N	285	294	anti-parallel
Strand 4	N	271	277	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	235	237	first strand
Strand 2	N	315	325	parallel
Strand 3	N	303	310	anti-parallel
Strand 4	N	257	261	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	133	138	first strand
Strand 2	O	213	218	parallel
Strand 3	O	197	203	anti-parallel
Strand 4	O	208	210	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	133	138	first strand
Strand 2	O	213	218	parallel
Strand 3	O	197	203	anti-parallel
Strand 4	O	158	164	anti-parallel
Strand 5	O	168	170	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	208	210	first strand
Strand 2	O	197	203	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	145	148	first strand
Strand 2	O	184	188	anti-parallel
Strand 3	O	178	180	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	223	229	first strand
Strand 2	O	242	250	anti-parallel
Strand 3	O	286	294	anti-parallel
Strand 4	O	270	277	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	234	237	first strand
Strand 2	O	315	325	parallel
Strand 3	O	303	310	anti-parallel
Strand 4	O	257	261	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: 2X1W

Analysis of interatomic Contacts of Structural Units in PDB entry:
2X1W