Analysis of interatomic Contacts of Structural Units in PDB entry:
25TW

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 25TW entry

There are 4 chains in PDB entry 25TW (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 40	GLN 577
B	PRO 40	ASP 578
C	ASP 28	PHE 208
D	ASP 28	ILE 168

There are 35 helices in PDB entry 25TW. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	75	92	Right-handed alpha
Helix 2	AA2	A	112	123	Right-handed alpha
Helix 3	AA3	A	159	172	Right-handed alpha
Helix 4	AA4	A	183	188	Right-handed 310
Helix 5	AA5	A	201	216	Right-handed alpha
Helix 6	AA6	A	228	245	Right-handed alpha
Helix 7	AA7	A	263	265	Right-handed 310
Helix 8	AA8	A	266	276	Right-handed alpha
Helix 9	AA9	A	288	303	Right-handed alpha
Helix 10	AB1	A	313	319	Right-handed alpha
Helix 11	AB2	A	320	326	Right-handed alpha
Helix 12	AB3	A	343	352	Right-handed alpha
Helix 13	AB4	A	363	373	Right-handed alpha
Helix 14	AB5	A	395	400	Right-handed alpha
Helix 15	AB6	A	407	430	Right-handed alpha
Helix 16	AB7	A	437	443	Right-handed alpha
Helix 17	AB8	A	444	453	Right-handed alpha
Helix 18	AB9	B	76	91	Right-handed alpha
Helix 19	AC1	B	111	123	Right-handed alpha
Helix 20	AC2	B	158	172	Right-handed alpha
Helix 21	AC3	B	183	188	Right-handed 310
Helix 22	AC4	B	201	217	Right-handed alpha
Helix 23	AC5	B	228	246	Right-handed alpha
Helix 24	AC6	B	265	277	Right-handed alpha
Helix 25	AC7	B	288	302	Right-handed alpha
Helix 26	AC8	B	313	319	Right-handed 310
Helix 27	AC9	B	343	353	Right-handed alpha
Helix 28	AD1	B	363	373	Right-handed alpha
Helix 29	AD2	B	395	400	Right-handed alpha
Helix 30	AD3	B	407	430	Right-handed alpha
Helix 31	AD4	B	437	443	Right-handed alpha
Helix 32	AD5	B	444	454	Right-handed alpha
Helix 33	AD6	C	76	83	Right-handed alpha
Helix 34	AD7	C	200	208	Right-handed alpha
Helix 35	AD8	D	100	104	Right-handed 310

There are 17 sheets in PDB entry 25TW. 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, AB5, AB6, AB7, AB8,

There are 3 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	42	45	first strand
Strand 2	A	101	107	anti-parallel
Strand 3	A	49	55	parallel

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There are 2 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	58	60	first strand
Strand 2	A	67	70	anti-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	143	144	first strand
Strand 2	B	134	135	anti-parallel

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There are 3 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	153	155	first strand
Strand 2	A	176	178	parallel
Strand 3	A	196	197	parallel

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There are 4 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	249	256	first strand
Strand 2	A	220	226	parallel
Strand 3	A	282	285	parallel
Strand 4	A	309	310	parallel

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There are 4 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	334	338	first strand
Strand 2	A	477	481	anti-parallel
Strand 3	A	494	498	anti-parallel
Strand 4	A	503	504	anti-parallel

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There are 2 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	457	458	first strand
Strand 2	A	464	465	anti-parallel

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There are 2 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	553	554	first strand
Strand 2	A	560	561	anti-parallel

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There are 2 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	568	569	first strand
Strand 2	A	576	577	anti-parallel

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There are 6 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	42	45	first strand
Strand 2	B	101	107	anti-parallel
Strand 3	B	49	55	parallel
Strand 4	B	150	154	parallel
Strand 5	B	176	178	parallel
Strand 6	B	195	197	parallel

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There are 3 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	221	223	first strand
Strand 2	B	282	284	parallel
Strand 3	B	309	310	parallel

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There are 3 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	334	338	first strand
Strand 2	B	477	481	anti-parallel
Strand 3	B	496	498	anti-parallel

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There are 2 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	456	458	first strand
Strand 2	B	464	466	anti-parallel

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There are 2 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	535	536	first strand
Strand 2	B	543	544	anti-parallel

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There are 7 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	30	32	first strand
Strand 2	C	41	43	anti-parallel
Strand 3	C	64	66	parallel
Strand 4	C	88	90	parallel
Strand 5	C	112	114	parallel
Strand 6	C	136	138	parallel
Strand 7	C	160	162	parallel

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There are 2 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	74	75	first strand
Strand 2	C	98	99	parallel

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There are 6 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	30	32	first strand
Strand 2	D	41	43	anti-parallel
Strand 3	D	64	66	parallel
Strand 4	D	88	90	parallel
Strand 5	D	112	114	parallel
Strand 6	D	136	138	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: 25TW

Analysis of interatomic Contacts of Structural Units in PDB entry:
25TW