Analysis of interatomic Contacts of Structural Units in PDB entry:
2W20

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 2W20 entry

There are 2 chains in PDB entry 2W20 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 321	SER 790
B	ALA 322	SER 790

There are 14 helices in PDB entry 2W20. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	407	411	Right-handed 310
Helix 2	2	A	440	445	Right-handed 310
Helix 3	3	A	499	503	Right-handed 310
Helix 4	4	A	554	559	Right-handed alpha
Helix 5	5	A	596	601	Right-handed alpha
Helix 6	6	A	640	644	Right-handed 310
Helix 7	7	A	786	790	Right-handed alpha
Helix 8	8	B	407	411	Right-handed 310
Helix 9	9	B	440	445	Right-handed 310
Helix 10	10	B	499	503	Right-handed 310
Helix 11	11	B	554	559	Right-handed alpha
Helix 12	12	B	596	601	Right-handed alpha
Helix 13	13	B	640	644	Right-handed 310
Helix 14	14	B	786	790	Right-handed alpha

There are 19 sheets in PDB entry 2W20. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, BA, BB, BC, BD, BE, BF, BG, BH, BI,

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	327	330	first strand
Strand 2	A	778	785	anti-parallel
Strand 3	A	762	769	anti-parallel
Strand 4	A	753	759	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	345	353	first strand
Strand 2	A	359	366	anti-parallel
Strand 3	A	376	383	anti-parallel
Strand 4	A	394	397	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	552	553	first strand
Strand 2	A	535	541	anti-parallel
Strand 3	A	429	436	anti-parallel
Strand 4	A	414	422	anti-parallel
Strand 5	A	571	572	parallel

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There are 7 strands in AD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	453	456	first strand
Strand 2	A	459	466	anti-parallel
Strand 3	A	473	475	anti-parallel
Strand 4	A	480	482	anti-parallel
Strand 5	A	488	493	anti-parallel
Strand 6	A	507	510	anti-parallel
Strand 7	A	513	517	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	453	456	first strand
Strand 2	A	459	466	anti-parallel
Strand 3	A	528	529	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	566	568	first strand
Strand 2	A	585	591	anti-parallel
Strand 3	A	574	575	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	566	568	first strand
Strand 2	A	585	591	anti-parallel
Strand 3	A	603	609	anti-parallel
Strand 4	A	617	618	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	626	628	first strand
Strand 2	A	631	633	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	648	652	first strand
Strand 2	A	658	662	anti-parallel
Strand 3	A	668	674	anti-parallel
Strand 4	A	686	692	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	699	705	first strand
Strand 2	A	708	716	anti-parallel
Strand 3	A	722	731	anti-parallel
Strand 4	A	737	749	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	327	330	first strand
Strand 2	B	778	785	anti-parallel
Strand 3	B	762	769	anti-parallel
Strand 4	B	753	759	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	345	353	first strand
Strand 2	B	359	366	anti-parallel
Strand 3	B	376	383	anti-parallel
Strand 4	B	394	397	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	552	553	first strand
Strand 2	B	535	541	anti-parallel
Strand 3	B	429	436	anti-parallel
Strand 4	B	414	422	anti-parallel
Strand 5	B	571	572	parallel

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There are 7 strands in BD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	453	456	first strand
Strand 2	B	459	466	anti-parallel
Strand 3	B	473	475	anti-parallel
Strand 4	B	480	482	anti-parallel
Strand 5	B	488	493	anti-parallel
Strand 6	B	507	510	anti-parallel
Strand 7	B	513	517	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	453	456	first strand
Strand 2	B	459	466	anti-parallel
Strand 3	B	528	529	anti-parallel

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There are 7 strands in BF sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	566	568	first strand
Strand 2	B	585	591	anti-parallel
Strand 3	B	574	575	anti-parallel
Strand 4	B	585	591	anti-parallel
Strand 5	B	617	618	first strand
Strand 6	B	603	609	anti-parallel
Strand 7	B	585	591	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	626	628	first strand
Strand 2	B	631	633	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	648	652	first strand
Strand 2	B	658	662	anti-parallel
Strand 3	B	668	674	anti-parallel
Strand 4	B	686	692	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	699	705	first strand
Strand 2	B	708	716	anti-parallel
Strand 3	B	722	731	anti-parallel
Strand 4	B	737	749	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: 2W20

Analysis of interatomic Contacts of Structural Units in PDB entry:
2W20