Analysis of interatomic Contacts of Structural Units in PDB entry:
1A0S

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 1A0S entry

There are 3 chains in PDB entry 1A0S (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
P	SER 71	PHE 483
Q	SER 71	PHE 483
R	SER 71	PHE 483

There are 23 helices in PDB entry 1A0S. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	P	100	104	Right-handed 310
Helix 2	2	P	153	155	Right-handed 310
Helix 3	3	P	175	177	Right-handed 310
Helix 4	4	P	196	198	Right-handed 310
Helix 5	5	P	268	270	Right-handed 310
Helix 6	6	P	316	319	Right-handed 310
Helix 7	7	P	407	409	Right-handed 310
Helix 8	8	P	451	455	Right-handed 310
Helix 9	9	Q	100	104	Right-handed 310
Helix 10	10	Q	175	177	Right-handed 310
Helix 11	11	Q	196	198	Right-handed 310
Helix 12	12	Q	238	240	Right-handed 310
Helix 13	13	Q	268	270	Right-handed 310
Helix 14	14	Q	316	319	Right-handed 310
Helix 15	15	Q	407	409	Right-handed 310
Helix 16	16	Q	451	455	Right-handed 310
Helix 17	17	R	100	104	Right-handed 310
Helix 18	18	R	175	177	Right-handed 310
Helix 19	19	R	196	198	Right-handed 310
Helix 20	20	R	268	270	Right-handed 310
Helix 21	21	R	316	319	Right-handed 310
Helix 22	22	R	407	409	Right-handed 310
Helix 23	23	R	451	455	Right-handed 310

There are 12 sheets in PDB entry 1A0S. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

There are 19 strands in A sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	118	125	first strand
Strand 2	P	73	86	anti-parallel
Strand 3	P	472	482	anti-parallel
Strand 4	P	439	449	anti-parallel
Strand 5	P	413	426	anti-parallel
Strand 6	P	389	403	anti-parallel
Strand 7	P	371	384	anti-parallel
Strand 8	P	351	363	anti-parallel
Strand 9	P	335	344	anti-parallel
Strand 10	P	306	316	anti-parallel
Strand 11	P	286	296	anti-parallel
Strand 12	P	256	264	anti-parallel
Strand 13	P	241	253	anti-parallel
Strand 14	P	222	233	anti-parallel
Strand 15	P	206	213	anti-parallel
Strand 16	P	181	188	anti-parallel
Strand 17	P	159	168	anti-parallel
Strand 18	P	134	145	anti-parallel
Strand 19	P	117	128	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	215	217	first strand
Strand 2	P	221	223	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	425	427	first strand
Strand 2	P	439	441	anti-parallel

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There are 19 strands in D sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	118	125	first strand
Strand 2	Q	73	86	anti-parallel
Strand 3	Q	472	482	anti-parallel
Strand 4	Q	439	449	anti-parallel
Strand 5	Q	413	426	anti-parallel
Strand 6	Q	389	403	anti-parallel
Strand 7	Q	371	384	anti-parallel
Strand 8	Q	351	363	anti-parallel
Strand 9	Q	335	344	anti-parallel
Strand 10	Q	306	316	anti-parallel
Strand 11	Q	286	296	anti-parallel
Strand 12	Q	256	264	anti-parallel
Strand 13	Q	241	253	anti-parallel
Strand 14	Q	222	233	anti-parallel
Strand 15	Q	206	213	anti-parallel
Strand 16	Q	181	188	anti-parallel
Strand 17	Q	159	168	anti-parallel
Strand 18	Q	134	145	anti-parallel
Strand 19	Q	117	128	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	215	217	first strand
Strand 2	Q	221	223	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	425	427	first strand
Strand 2	Q	439	441	anti-parallel

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There are 19 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	118	125	first strand
Strand 2	R	73	86	anti-parallel
Strand 3	R	472	482	anti-parallel
Strand 4	R	439	449	anti-parallel
Strand 5	R	413	426	anti-parallel
Strand 6	R	389	403	anti-parallel
Strand 7	R	371	384	anti-parallel
Strand 8	R	351	363	anti-parallel
Strand 9	R	335	344	anti-parallel
Strand 10	R	306	316	anti-parallel
Strand 11	R	286	296	anti-parallel
Strand 12	R	256	264	anti-parallel
Strand 13	R	241	253	anti-parallel
Strand 14	R	222	233	anti-parallel
Strand 15	R	206	213	anti-parallel
Strand 16	R	181	188	anti-parallel
Strand 17	R	159	168	anti-parallel
Strand 18	R	134	145	anti-parallel
Strand 19	R	117	128	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	215	217	first strand
Strand 2	R	221	223	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	425	427	first strand
Strand 2	R	439	441	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	193	195	first strand
Strand 2	P	200	203	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	193	195	first strand
Strand 2	Q	200	203	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	193	195	first strand
Strand 2	R	200	203	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: 1A0S

Analysis of interatomic Contacts of Structural Units in PDB entry:
1A0S