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

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 21ES entry

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

Chain ID	Initial residue	Terminal residue
A	ASP 134	VAL 551
B	ASP 134	THR 553
E	ASP 134	THR 553
F	ASP 134	THR 552
C	ASN 115	LYS 214
D	ASN 115	LYS 214
G	ASN 115	LYS 214
H	ASN 115	LYS 214

There are 14 helices in PDB entry 21ES. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	268	272	Right-handed 310
Helix 2	AA2	A	390	394	Right-handed 310
Helix 3	AA3	B	196	199	Right-handed 310
Helix 4	AA4	B	424	428	Right-handed 310
Helix 5	AA5	E	196	198	Right-handed 310
Helix 6	AA6	F	268	272	Right-handed 310
Helix 7	AA7	F	390	394	Right-handed 310
Helix 8	AA8	C	116	128	Right-handed alpha
Helix 9	AA9	D	116	128	Right-handed alpha
Helix 10	AB1	D	140	144	Right-handed alpha
Helix 11	AB2	G	116	128	Right-handed alpha
Helix 12	AB3	G	140	144	Right-handed alpha
Helix 13	AB4	H	116	128	Right-handed alpha
Helix 14	AB5	H	140	145	Right-handed alpha

There are 54 sheets in PDB entry 21ES. 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, AB9, AC1, AC2, AC3, AC4, AC5, AC6, AC7, AC8, AC9, AD1, AD2, AD3, AD4, AD5, AD6, AD7, AD8, AD9, AE1, AE2, AE3, AE4, AE5, AE6, AE7, AE8, AE9, AF1, AF2, AF3, AF4, AF5, AF6, AF7, AF8, AF9,

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	145	148	first strand
Strand 2	A	220	224	parallel
Strand 3	A	203	208	anti-parallel
Strand 4	A	167	170	anti-parallel
Strand 5	A	175	176	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	A	145	148	first strand
Strand 2	A	220	224	parallel
Strand 3	A	203	208	anti-parallel
Strand 4	A	215	216	anti-parallel

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There are 3 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	153	156	first strand
Strand 2	A	190	194	anti-parallel
Strand 3	A	184	186	anti-parallel

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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	229	232	first strand
Strand 2	A	254	256	anti-parallel
Strand 3	A	289	297	anti-parallel
Strand 4	A	248	251	anti-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	229	232	first strand
Strand 2	A	254	256	anti-parallel
Strand 3	A	289	297	anti-parallel
Strand 4	A	277	284	anti-parallel

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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	A	263	267	first strand
Strand 2	A	307	313	anti-parallel
Strand 3	A	318	324	anti-parallel

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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	A	332	337	first strand
Strand 2	A	350	361	anti-parallel
Strand 3	A	383	388	anti-parallel

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There are 4 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	373	374	first strand
Strand 2	A	365	370	anti-parallel
Strand 3	A	395	403	anti-parallel
Strand 4	A	408	416	anti-parallel

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There are 3 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	444	445	first strand
Strand 2	A	514	521	anti-parallel
Strand 3	A	504	511	anti-parallel

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There are 3 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	457	462	first strand
Strand 2	A	530	538	anti-parallel
Strand 3	A	541	549	anti-parallel

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There are 5 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	145	148	first strand
Strand 2	B	220	224	parallel
Strand 3	B	203	207	anti-parallel
Strand 4	B	168	171	anti-parallel
Strand 5	B	175	176	anti-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	153	156	first strand
Strand 2	B	190	194	anti-parallel
Strand 3	B	183	186	anti-parallel

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There are 3 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	254	256	first strand
Strand 2	B	289	291	anti-parallel
Strand 3	B	282	284	anti-parallel

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There are 3 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	263	267	first strand
Strand 2	B	308	313	anti-parallel
Strand 3	B	318	323	anti-parallel

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There are 2 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	277	279	first strand
Strand 2	B	294	296	anti-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	B	333	336	first strand
Strand 2	B	357	360	anti-parallel

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There are 5 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	342	346	first strand
Strand 2	B	408	419	parallel
Strand 3	B	395	403	anti-parallel
Strand 4	B	365	370	anti-parallel
Strand 5	B	373	374	anti-parallel

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There are 2 strands in AB9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	352	355	first strand
Strand 2	B	383	386	anti-parallel

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There are 3 strands in AC1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	441	447	first strand
Strand 2	B	514	523	anti-parallel
Strand 3	B	501	511	anti-parallel

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There are 4 strands in AC2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	490	491	first strand
Strand 2	B	456	462	anti-parallel
Strand 3	B	530	538	anti-parallel
Strand 4	B	541	549	anti-parallel

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There are 5 strands in AC3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	144	148	first strand
Strand 2	E	220	224	parallel
Strand 3	E	203	208	anti-parallel
Strand 4	E	167	170	anti-parallel
Strand 5	E	175	176	anti-parallel

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There are 3 strands in AC4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	153	156	first strand
Strand 2	E	190	194	anti-parallel
Strand 3	E	184	186	anti-parallel

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There are 4 strands in AC5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	229	232	first strand
Strand 2	E	254	256	anti-parallel
Strand 3	E	289	292	anti-parallel
Strand 4	E	281	282	anti-parallel

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There are 3 strands in AC6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	249	250	first strand
Strand 2	E	295	296	anti-parallel
Strand 3	E	277	278	anti-parallel

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There are 3 strands in AC7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	263	267	first strand
Strand 2	E	308	313	anti-parallel
Strand 3	E	318	323	anti-parallel

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There are 2 strands in AC8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	354	355	first strand
Strand 2	E	383	384	anti-parallel

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There are 4 strands in AC9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	373	374	first strand
Strand 2	E	367	370	anti-parallel
Strand 3	E	399	403	anti-parallel
Strand 4	E	408	410	anti-parallel

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There are 2 strands in AD1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	435	436	first strand
Strand 2	E	551	552	parallel

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There are 3 strands in AD2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	441	443	first strand
Strand 2	E	517	523	anti-parallel
Strand 3	E	446	447	anti-parallel

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There are 3 strands in AD3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	441	443	first strand
Strand 2	E	517	523	anti-parallel
Strand 3	E	501	508	anti-parallel

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There are 2 strands in AD4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	459	460	first strand
Strand 2	E	490	491	anti-parallel

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There are 2 strands in AD5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	530	532	first strand
Strand 2	E	547	549	anti-parallel

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There are 2 strands in AD6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	536	537	first strand
Strand 2	E	542	543	anti-parallel

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There are 4 strands in AD7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	145	147	first strand
Strand 2	F	220	223	parallel
Strand 3	F	203	208	anti-parallel
Strand 4	F	167	170	anti-parallel

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There are 3 strands in AD8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	153	156	first strand
Strand 2	F	190	194	anti-parallel
Strand 3	F	183	186	anti-parallel

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There are 4 strands in AD9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	231	232	first strand
Strand 2	F	254	256	anti-parallel
Strand 3	F	289	297	anti-parallel
Strand 4	F	248	251	anti-parallel

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There are 4 strands in AE1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	231	232	first strand
Strand 2	F	254	256	anti-parallel
Strand 3	F	289	297	anti-parallel
Strand 4	F	277	284	anti-parallel

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There are 3 strands in AE2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	240	241	first strand
Strand 2	F	318	326	parallel
Strand 3	F	307	313	anti-parallel

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There are 5 strands in AE3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	344	346	first strand
Strand 2	F	408	419	parallel
Strand 3	F	395	403	anti-parallel
Strand 4	F	366	370	anti-parallel
Strand 5	F	373	374	anti-parallel

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There are 2 strands in AE4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	352	355	first strand
Strand 2	F	383	386	anti-parallel

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There are 3 strands in AE5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	445	447	first strand
Strand 2	F	514	521	anti-parallel
Strand 3	F	504	511	anti-parallel

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There are 3 strands in AE6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	456	459	first strand
Strand 2	F	530	537	anti-parallel
Strand 3	F	542	543	anti-parallel

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There are 3 strands in AE7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	456	459	first strand
Strand 2	F	530	537	anti-parallel
Strand 3	F	546	549	anti-parallel

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There are 2 strands in AE8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	134	139	first strand
Strand 2	C	156	161	anti-parallel

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There are 3 strands in AE9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	150	151	first strand
Strand 2	C	178	189	anti-parallel
Strand 3	C	197	206	anti-parallel

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There are 2 strands in AF1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	171	175	first strand
Strand 2	C	209	213	anti-parallel

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There are 2 strands in AF2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	132	139	first strand
Strand 2	D	156	163	anti-parallel

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There are 2 strands in AF3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	172	175	first strand
Strand 2	D	209	212	anti-parallel

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There are 2 strands in AF4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	178	185	first strand
Strand 2	D	199	206	anti-parallel

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There are 2 strands in AF5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	132	139	first strand
Strand 2	G	156	163	anti-parallel

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There are 3 strands in AF6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	150	153	first strand
Strand 2	G	171	189	anti-parallel
Strand 3	G	197	213	anti-parallel

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There are 2 strands in AF7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	132	139	first strand
Strand 2	H	156	163	anti-parallel

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There are 3 strands in AF8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	151	153	first strand
Strand 2	H	178	188	anti-parallel
Strand 3	H	197	206	anti-parallel

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There are 2 strands in AF9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	171	175	first strand
Strand 2	H	209	213	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: 21ES

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