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

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 21RN entry

There are 6 chains in PDB entry 21RN (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	VAL 2	SER 118
B	ASP 1	LYS 106
C	VAL 2	SER 118
D	ASP 1	LYS 106
E	PRO 142	PRO 243
F	PRO 264	GLU 717

There are 29 helices in PDB entry 21RN. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	28	32	Right-handed 310
Helix 2	AA2	A	87	91	Right-handed 310
Helix 3	AA3	B	79	83	Right-handed 310
Helix 4	AA4	C	87	91	Right-handed 310
Helix 5	AA5	E	200	208	Right-handed alpha
Helix 6	AA6	E	212	216	Right-handed 310
Helix 7	AA7	E	224	238	Right-handed alpha
Helix 8	AA8	F	313	318	Right-handed alpha
Helix 9	AA9	F	320	327	Right-handed alpha
Helix 10	AB1	F	377	382	Right-handed 310
Helix 11	AB2	F	383	408	Right-handed alpha
Helix 12	AB3	F	412	442	Right-handed alpha
Helix 13	AB4	F	442	450	Right-handed alpha
Helix 14	AB5	F	467	472	Right-handed alpha
Helix 15	AB6	F	473	478	Right-handed 310
Helix 16	AB7	F	502	504	Right-handed 310
Helix 17	AB8	F	508	513	Right-handed alpha
Helix 18	AB9	F	517	527	Right-handed alpha
Helix 19	AC1	F	539	545	Right-handed alpha
Helix 20	AC2	F	556	568	Right-handed alpha
Helix 21	AC3	F	572	580	Right-handed alpha
Helix 22	AC4	F	587	596	Right-handed alpha
Helix 23	AC5	F	597	608	Right-handed alpha
Helix 24	AC6	F	615	623	Right-handed alpha
Helix 25	AC7	F	632	649	Right-handed alpha
Helix 26	AC8	F	661	669	Right-handed alpha
Helix 27	AC9	F	672	681	Right-handed alpha
Helix 28	AD1	F	696	700	Right-handed alpha
Helix 29	AD2	F	712	716	Right-handed 310

There are 17 sheets in PDB entry 21RN. 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,

There are 4 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	3	6	first strand
Strand 2	A	18	25	anti-parallel
Strand 3	A	78	83	anti-parallel
Strand 4	A	68	73	anti-parallel

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There are 6 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	10	12	first strand
Strand 2	A	112	116	parallel
Strand 3	A	92	98	anti-parallel
Strand 4	A	34	39	anti-parallel
Strand 5	A	45	52	anti-parallel
Strand 6	A	57	60	anti-parallel

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There are 4 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	10	12	first strand
Strand 2	A	112	116	parallel
Strand 3	A	92	98	anti-parallel
Strand 4	A	107	108	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	B	4	7	first strand
Strand 2	B	19	25	anti-parallel
Strand 3	B	71	75	anti-parallel
Strand 4	B	62	65	anti-parallel

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There are 6 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	10	13	first strand
Strand 2	B	101	105	parallel
Strand 3	B	85	90	anti-parallel
Strand 4	B	33	38	anti-parallel
Strand 5	B	45	49	anti-parallel
Strand 6	B	53	54	anti-parallel

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There are 4 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	10	13	first strand
Strand 2	B	101	105	parallel
Strand 3	B	85	90	anti-parallel
Strand 4	B	96	97	anti-parallel

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There are 4 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	3	6	first strand
Strand 2	C	18	25	anti-parallel
Strand 3	C	78	83	anti-parallel
Strand 4	C	68	73	anti-parallel

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There are 6 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	10	12	first strand
Strand 2	C	112	116	parallel
Strand 3	C	92	99	anti-parallel
Strand 4	C	34	39	anti-parallel
Strand 5	C	45	51	anti-parallel
Strand 6	C	58	60	anti-parallel

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There are 4 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	10	12	first strand
Strand 2	C	112	116	parallel
Strand 3	C	92	99	anti-parallel
Strand 4	C	105	108	anti-parallel

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There are 4 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	4	7	first strand
Strand 2	D	19	25	anti-parallel
Strand 3	D	70	75	anti-parallel
Strand 4	D	62	67	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	D	53	54	first strand
Strand 2	D	45	49	anti-parallel
Strand 3	D	33	38	anti-parallel
Strand 4	D	85	90	anti-parallel
Strand 5	D	96	97	anti-parallel

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There are 5 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	53	54	first strand
Strand 2	D	45	49	anti-parallel
Strand 3	D	33	38	anti-parallel
Strand 4	D	85	90	anti-parallel
Strand 5	D	101	102	anti-parallel

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There are 2 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	167	168	first strand
Strand 2	F	304	305	anti-parallel

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There are 2 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	218	223	first strand
Strand 2	F	528	530	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	F	328	329	first strand
Strand 2	F	336	337	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	F	482	484	first strand
Strand 2	F	498	500	anti-parallel

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There are 2 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	685	687	first strand
Strand 2	F	701	703	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: 21RN

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