Analysis of interatomic Contacts of Structural Units in PDB entry:
23SP

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 23SP entry

There are 2 chains in PDB entry 23SP (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
B	ASN 837	PHE 1259
A	ASN 23	LEU 577

There are 17 helices in PDB entry 23SP. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	B	848	856	Right-handed 310
Helix 2	AA2	B	1111	1116	Right-handed 310
Helix 3	AA3	B	1136	1138	Right-handed 310
Helix 4	AA4	B	1139	1150	Right-handed alpha
Helix 5	AA5	B	1158	1173	Right-handed alpha
Helix 6	AA6	B	1180	1189	Right-handed 310
Helix 7	AA7	A	32	46	Right-handed alpha
Helix 8	AA8	A	47	52	Right-handed 310
Helix 9	AA9	A	54	73	Right-handed alpha
Helix 10	AB1	A	115	119	Right-handed 310
Helix 11	AB2	A	120	129	Right-handed alpha
Helix 12	AB3	A	138	157	Right-handed alpha
Helix 13	AB4	A	202	210	Right-handed alpha
Helix 14	AB5	A	219	233	Right-handed alpha
Helix 15	AB6	A	417	421	Right-handed 310
Helix 16	AB7	A	458	462	Right-handed 310
Helix 17	AB8	A	528	532	Right-handed 310

There are 5 sheets in PDB entry 23SP. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5,

There are 20 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	838	842	first strand
Strand 2	B	866	874	anti-parallel
Strand 3	B	880	887	anti-parallel
Strand 4	B	901	912	anti-parallel
Strand 5	B	914	923	anti-parallel
Strand 6	B	927	937	anti-parallel
Strand 7	B	941	951	anti-parallel
Strand 8	B	953	957	first strand
Strand 9	B	961	965	anti-parallel
Strand 10	B	968	974	anti-parallel
Strand 11	B	977	992	anti-parallel
Strand 12	B	1026	1042	parallel
Strand 13	B	1045	1048	anti-parallel
Strand 14	B	1051	1056	anti-parallel
Strand 15	B	1065	1068	first strand
Strand 16	B	1074	1077	anti-parallel
Strand 17	B	1080	1092	anti-parallel
Strand 18	B	1099	1105	anti-parallel
Strand 19	B	1118	1124	anti-parallel
Strand 20	B	1127	1131	anti-parallel

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There are 4 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1007	1009	first strand
Strand 2	A	162	170	parallel
Strand 3	A	177	184	anti-parallel
Strand 4	A	106	114	parallel

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There are 23 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	1194	1196	first strand
Strand 2	B	1203	1211	anti-parallel
Strand 3	B	1214	1221	anti-parallel
Strand 4	B	1228	1236	anti-parallel
Strand 5	B	1239	1245	anti-parallel
Strand 6	B	1250	1257	anti-parallel
Strand 7	A	268	274	anti-parallel
Strand 8	A	280	288	anti-parallel
Strand 9	A	297	304	anti-parallel
Strand 10	A	308	318	anti-parallel
Strand 11	A	326	331	anti-parallel
Strand 12	A	334	339	anti-parallel
Strand 13	A	342	355	anti-parallel
Strand 14	A	362	376	anti-parallel
Strand 15	A	379	398	anti-parallel
Strand 16	A	405	416	anti-parallel
Strand 17	A	426	437	anti-parallel
Strand 18	A	443	456	anti-parallel
Strand 19	A	498	510	anti-parallel
Strand 20	A	514	526	anti-parallel
Strand 21	A	535	544	anti-parallel
Strand 22	A	551	558	anti-parallel
Strand 23	A	568	573	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	24	29	first strand
Strand 2	A	92	99	parallel
Strand 3	A	78	83	anti-parallel

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There are 3 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	190	197	first strand
Strand 2	A	253	261	parallel
Strand 3	A	237	243	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: 23SP

Analysis of interatomic Contacts of Structural Units in PDB entry:
23SP