Analysis of interatomic Contacts of Structural Units in PDB entry:
21OT

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 21OT entry

There are 8 chains in PDB entry 21OT (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LEU 130	VAL 215
B	GLY 132	TYR 214
C	SER 131	TYR 214
D	SER 131	TYR 214
E	SER 131	TYR 214
G	SER 131	VAL 215
H	SER 131	VAL 215
F	GLY 132	TYR 214

There are 24 helices in PDB entry 21OT. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	147	159	Right-handed alpha
Helix 2	AA2	A	160	165	Right-handed 310
Helix 3	AA3	A	187	196	Right-handed alpha
Helix 4	AA4	B	147	160	Right-handed alpha
Helix 5	AA5	B	161	165	Right-handed 310
Helix 6	AA6	B	187	196	Right-handed alpha
Helix 7	AA7	C	147	160	Right-handed alpha
Helix 8	AA8	C	161	165	Right-handed 310
Helix 9	AA9	C	187	196	Right-handed alpha
Helix 10	AB1	D	147	161	Right-handed alpha
Helix 11	AB2	D	162	165	Right-handed 310
Helix 12	AB3	D	187	196	Right-handed alpha
Helix 13	AB4	E	147	159	Right-handed alpha
Helix 14	AB5	E	160	165	Right-handed 310
Helix 15	AB6	E	187	196	Right-handed alpha
Helix 16	AB7	G	147	160	Right-handed alpha
Helix 17	AB8	G	161	165	Right-handed 310
Helix 18	AB9	G	187	196	Right-handed alpha
Helix 19	AC1	H	147	160	Right-handed alpha
Helix 20	AC2	H	161	165	Right-handed 310
Helix 21	AC3	H	187	196	Right-handed alpha
Helix 22	AC4	F	147	160	Right-handed alpha
Helix 23	AC5	F	161	165	Right-handed 310
Helix 24	AC6	F	187	196	Right-handed alpha

There are 8 sheets in PDB entry 21OT. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8,

There are 5 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	169	175	first strand
Strand 2	B	178	183	anti-parallel
Strand 3	A	134	138	anti-parallel
Strand 4	B	205	213	anti-parallel
Strand 5	B	197	202	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	197	202	first strand
Strand 2	A	205	213	anti-parallel
Strand 3	B	134	138	anti-parallel
Strand 4	A	179	183	anti-parallel
Strand 5	B	169	174	anti-parallel

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There are 5 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	169	174	first strand
Strand 2	D	179	183	anti-parallel
Strand 3	C	134	138	anti-parallel
Strand 4	D	206	213	anti-parallel
Strand 5	D	197	201	anti-parallel

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There are 5 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	197	202	first strand
Strand 2	C	205	213	anti-parallel
Strand 3	D	134	138	anti-parallel
Strand 4	C	179	183	anti-parallel
Strand 5	D	169	174	anti-parallel

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There are 5 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	169	175	first strand
Strand 2	F	178	183	anti-parallel
Strand 3	E	134	138	anti-parallel
Strand 4	F	206	213	anti-parallel
Strand 5	F	197	201	anti-parallel

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There are 5 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	197	202	first strand
Strand 2	E	205	213	anti-parallel
Strand 3	F	134	138	anti-parallel
Strand 4	E	179	183	anti-parallel
Strand 5	F	169	174	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	G	169	174	first strand
Strand 2	H	179	183	anti-parallel
Strand 3	G	134	138	anti-parallel
Strand 4	H	205	213	anti-parallel
Strand 5	H	197	202	anti-parallel

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There are 5 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	197	201	first strand
Strand 2	G	206	213	anti-parallel
Strand 3	H	134	138	anti-parallel
Strand 4	G	179	183	anti-parallel
Strand 5	H	169	174	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: 21OT

Analysis of interatomic Contacts of Structural Units in PDB entry:
21OT