Analysis of interatomic Contacts of Structural Units in PDB entry:
8SQU

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 8SQU entry

There are 4 chains in PDB entry 8SQU (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ARG 2	GLU 420
B	MET 1	ILE 507
C	U 1	U 21
D	C 4	A 23

There are 26 helices in PDB entry 8SQU. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	14	28	Right-handed alpha
Helix 2	AA2	A	46	56	Right-handed alpha
Helix 3	AA3	A	72	89	Right-handed alpha
Helix 4	AA4	A	123	138	Right-handed alpha
Helix 5	AA5	A	147	158	Right-handed alpha
Helix 6	AA6	A	199	203	Right-handed 310
Helix 7	AA7	A	234	238	Right-handed 310
Helix 8	AA8	A	242	249	Right-handed alpha
Helix 9	AA9	A	257	280	Right-handed alpha
Helix 10	AB1	A	353	365	Right-handed alpha
Helix 11	AB2	A	369	384	Right-handed alpha
Helix 12	AB3	B	15	17	Right-handed 310
Helix 13	AB4	B	22	31	Right-handed alpha
Helix 14	AB5	B	46	61	Right-handed alpha
Helix 15	AB6	B	77	83	Right-handed alpha
Helix 16	AB7	B	97	105	Right-handed alpha
Helix 17	AB8	B	109	131	Right-handed alpha
Helix 18	AB9	B	144	150	Right-handed alpha
Helix 19	AC1	B	205	214	Right-handed alpha
Helix 20	AC2	B	226	230	Right-handed alpha
Helix 21	AC3	B	248	264	Right-handed alpha
Helix 22	AC4	B	331	350	Right-handed alpha
Helix 23	AC5	B	366	376	Right-handed alpha
Helix 24	AC6	B	451	462	Right-handed alpha
Helix 25	AC7	B	477	480	Right-handed 310
Helix 26	AC8	B	481	490	Right-handed alpha

There are 8 sheets in PDB entry 8SQU. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8,

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	170	171	first strand
Strand 2	A	410	411	anti-parallel
Strand 3	B	2	3	parallel

Back to list of sheets
Back to top of page

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	A	283	286	first strand
Strand 2	A	291	294	anti-parallel
Strand 3	A	317	328	anti-parallel
Strand 4	A	311	314	anti-parallel

Back to list of sheets
Back to top of page

There are 7 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	283	286	first strand
Strand 2	A	291	294	anti-parallel
Strand 3	A	317	328	anti-parallel
Strand 4	A	334	344	anti-parallel
Strand 5	A	175	180	anti-parallel
Strand 6	A	401	407	anti-parallel
Strand 7	A	390	393	anti-parallel

Back to list of sheets
Back to top of page

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	208	210	first strand
Strand 2	A	213	216	anti-parallel
Strand 3	A	185	189	anti-parallel
Strand 4	A	239	241	anti-parallel

Back to list of sheets
Back to top of page

There are 9 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	5	6	first strand
Strand 2	B	409	414	anti-parallel
Strand 3	B	417	420	anti-parallel
Strand 4	B	441	447	anti-parallel
Strand 5	B	382	389	anti-parallel
Strand 6	B	356	361	parallel
Strand 7	B	280	286	parallel
Strand 8	B	296	299	anti-parallel
Strand 9	B	320	322	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	19	20	first strand
Strand 2	B	12	13	anti-parallel
Strand 3	B	270	271	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	41	44	first strand
Strand 2	B	138	143	parallel
Strand 3	B	221	225	parallel

Back to list of sheets
Back to top of page

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	B	302	304	first strand
Strand 2	B	312	314	anti-parallel

Back to list of sheets
Back to top of page

Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il

Analysis of interatomic Contacts of Structural Units in PDB entry: 8SQU

Analysis of interatomic Contacts of Structural Units in PDB entry:
8SQU