Analysis of interatomic Contacts of Structural Units in PDB entry:
9W20

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 9W20 entry

There are 4 chains in PDB entry 9W20 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	CYS 15	ALA 352
a	LYS 14	ALA 352
B	CYS 15	ALA 352
b	LYS 14	ALA 352

There are 26 helices in PDB entry 9W20. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	38	51	Right-handed alpha
Helix 2	AA2	A	61	82	Right-handed alpha
Helix 3	AA3	A	116	121	Right-handed alpha
Helix 4	AA4	A	144	148	Right-handed 310
Helix 5	AA5	A	226	230	Right-handed 310
Helix 6	AA6	A	237	241	Right-handed 310
Helix 7	AA7	A	244	248	Right-handed 310
Helix 8	AA8	a	38	51	Right-handed alpha
Helix 9	AA9	a	61	81	Right-handed alpha
Helix 10	AB1	a	117	121	Right-handed 310
Helix 11	AB2	a	144	148	Right-handed 310
Helix 12	AB3	a	226	230	Right-handed 310
Helix 13	AB4	a	244	248	Right-handed 310
Helix 14	AB5	a	267	271	Right-handed 310
Helix 15	AB6	B	41	51	Right-handed alpha
Helix 16	AB7	B	61	82	Right-handed alpha
Helix 17	AB8	B	114	119	Right-handed 310
Helix 18	AB9	B	226	230	Right-handed 310
Helix 19	AC1	B	244	248	Right-handed 310
Helix 20	AC2	b	38	53	Right-handed alpha
Helix 21	AC3	b	61	82	Right-handed alpha
Helix 22	AC4	b	114	120	Right-handed alpha
Helix 23	AC5	b	144	148	Right-handed 310
Helix 24	AC6	b	226	230	Right-handed 310
Helix 25	AC7	b	237	241	Right-handed 310
Helix 26	AC8	b	244	248	Right-handed 310

There are 14 sheets in PDB entry 9W20. 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,

There are 2 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	57	58	first strand
Strand 2	A	149	150	parallel

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There are 2 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	154	157	first strand
Strand 2	A	168	170	anti-parallel

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There are 10 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	210	217	first strand
Strand 2	A	200	206	anti-parallel
Strand 3	A	192	196	anti-parallel
Strand 4	A	185	189	anti-parallel
Strand 5	a	185	188	anti-parallel
Strand 6	a	192	196	anti-parallel
Strand 7	a	200	206	anti-parallel
Strand 8	a	210	217	anti-parallel
Strand 9	a	273	277	anti-parallel
Strand 10	a	321	325	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	275	276	first strand
Strand 2	A	322	324	anti-parallel
Strand 3	A	329	331	anti-parallel
Strand 4	A	298	299	anti-parallel

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There are 3 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	32	36	first strand
Strand 2	a	165	171	parallel
Strand 3	a	153	154	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	285	287	first strand
Strand 2	a	311	313	parallel
Strand 3	a	335	337	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	B	56	57	first strand
Strand 2	B	133	135	parallel
Strand 3	B	88	90	parallel

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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	153	155	first strand
Strand 2	B	169	171	anti-parallel

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There are 15 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	329	331	first strand
Strand 2	B	321	324	anti-parallel
Strand 3	B	273	277	anti-parallel
Strand 4	B	210	217	anti-parallel
Strand 5	B	200	206	anti-parallel
Strand 6	B	192	196	anti-parallel
Strand 7	B	185	189	anti-parallel
Strand 8	b	185	189	anti-parallel
Strand 9	b	192	196	anti-parallel
Strand 10	b	200	206	anti-parallel
Strand 11	b	210	217	anti-parallel
Strand 12	b	274	277	anti-parallel
Strand 13	b	321	324	anti-parallel
Strand 14	b	329	331	anti-parallel
Strand 15	b	298	299	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	B	284	287	first strand
Strand 2	B	310	313	parallel
Strand 3	B	335	336	anti-parallel

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There are 2 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	57	58	first strand
Strand 2	b	149	150	parallel

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There are 2 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	88	90	first strand
Strand 2	b	133	135	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	b	153	154	first strand
Strand 2	b	170	171	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	286	287	first strand
Strand 2	b	311	313	parallel
Strand 3	b	335	337	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: 9W20

Analysis of interatomic Contacts of Structural Units in PDB entry:
9W20