Analysis of interatomic Contacts of Structural Units in PDB entry:
4XA2

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 4XA2 entry

There are 2 chains in PDB entry 4XA2 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 0	SER 1141
B	LYS 1	GLY 1140

There are 45 helices in PDB entry 4XA2. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	16	31	Right-handed alpha
Helix 2	AA2	A	42	51	Right-handed alpha
Helix 3	AA3	A	52	54	Right-handed 310
Helix 4	AA4	A	66	73	Right-handed alpha
Helix 5	AA5	A	82	87	Right-handed alpha
Helix 6	AA6	A	90	97	Right-handed alpha
Helix 7	AA7	A	128	130	Right-handed 310
Helix 8	AA8	A	131	141	Right-handed alpha
Helix 9	AA9	A	157	164	Right-handed alpha
Helix 10	AB1	A	185	201	Right-handed alpha
Helix 11	AB2	A	209	219	Right-handed alpha
Helix 12	AB3	A	228	230	Right-handed 310
Helix 13	AB4	A	231	237	Right-handed alpha
Helix 14	AB5	A	272	283	Right-handed alpha
Helix 15	AB6	A	286	297	Right-handed alpha
Helix 16	AB7	A	304	312	Right-handed alpha
Helix 17	AB8	A	314	327	Right-handed alpha
Helix 18	AB9	A	334	352	Right-handed alpha
Helix 19	AC1	A	356	369	Right-handed alpha
Helix 20	AC2	A	1023	1042	Right-handed alpha
Helix 21	AC3	A	1042	1054	Right-handed alpha
Helix 22	AC4	A	1061	1066	Right-handed 310
Helix 23	AC5	A	1128	1132	Right-handed 310
Helix 24	AC6	B	16	32	Right-handed alpha
Helix 25	AC7	B	42	51	Right-handed alpha
Helix 26	AC8	B	52	54	Right-handed 310
Helix 27	AC9	B	66	73	Right-handed alpha
Helix 28	AD1	B	82	88	Right-handed alpha
Helix 29	AD2	B	90	97	Right-handed alpha
Helix 30	AD3	B	131	142	Right-handed alpha
Helix 31	AD4	B	157	162	Right-handed alpha
Helix 32	AD5	B	185	201	Right-handed alpha
Helix 33	AD6	B	209	219	Right-handed alpha
Helix 34	AD7	B	228	230	Right-handed 310
Helix 35	AD8	B	231	239	Right-handed alpha
Helix 36	AD9	B	272	283	Right-handed alpha
Helix 37	AE1	B	286	297	Right-handed alpha
Helix 38	AE2	B	304	312	Right-handed alpha
Helix 39	AE3	B	314	327	Right-handed alpha
Helix 40	AE4	B	335	352	Right-handed alpha
Helix 41	AE5	B	356	369	Right-handed alpha
Helix 42	AE6	B	1023	1042	Right-handed alpha
Helix 43	AE7	B	1042	1054	Right-handed alpha
Helix 44	AE8	B	1061	1066	Right-handed 310
Helix 45	AE9	B	1128	1132	Right-handed 310

There are 13 sheets in PDB entry 4XA2. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3, AB4,

There are 6 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	34	38	first strand
Strand 2	A	6	10	parallel
Strand 3	A	59	63	parallel
Strand 4	A	258	266	anti-parallel
Strand 5	A	106	111	anti-parallel
Strand 6	A	301	302	anti-parallel

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There are 5 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	34	38	first strand
Strand 2	A	6	10	parallel
Strand 3	A	59	63	parallel
Strand 4	A	258	266	anti-parallel
Strand 5	A	328	329	parallel

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There are 2 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	98	99	first strand
Strand 2	A	102	103	anti-parallel

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There are 4 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	145	147	first strand
Strand 2	A	222	227	parallel
Strand 3	A	114	118	anti-parallel
Strand 4	A	242	245	anti-parallel

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There are 2 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	167	172	first strand
Strand 2	A	175	182	anti-parallel

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There are 2 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	249	250	first strand
Strand 2	A	253	254	anti-parallel

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There are 5 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	1074	1081	first strand
Strand 2	A	1087	1093	anti-parallel
Strand 3	A	1103	1108	anti-parallel
Strand 4	A	1121	1125	anti-parallel
Strand 5	A	1136	1138	parallel

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There are 6 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	34	38	first strand
Strand 2	B	6	10	parallel
Strand 3	B	59	63	parallel
Strand 4	B	258	266	anti-parallel
Strand 5	B	106	111	anti-parallel
Strand 6	B	301	302	anti-parallel

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There are 5 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	34	38	first strand
Strand 2	B	6	10	parallel
Strand 3	B	59	63	parallel
Strand 4	B	258	266	anti-parallel
Strand 5	B	328	329	parallel

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There are 2 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	98	99	first strand
Strand 2	B	102	103	anti-parallel

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There are 4 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	145	147	first strand
Strand 2	B	222	227	parallel
Strand 3	B	114	118	anti-parallel
Strand 4	B	242	245	anti-parallel

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There are 2 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	167	172	first strand
Strand 2	B	175	182	anti-parallel

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There are 5 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1074	1081	first strand
Strand 2	B	1087	1093	anti-parallel
Strand 3	B	1103	1108	anti-parallel
Strand 4	B	1121	1125	anti-parallel
Strand 5	B	1136	1138	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: 4XA2

Analysis of interatomic Contacts of Structural Units in PDB entry:
4XA2