Analysis of interatomic Contacts of Structural Units in PDB entry:
9K25

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 9K25 entry

There are 5 chains in PDB entry 9K25 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LEU 12	VAL 394
B	LEU 14	ASN 340
G	LYS 14	LEU 50
I	THR 15	LEU 308
N	GLN 1	VAL 126

There are 22 helices in PDB entry 9K25. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	14	38	Right-handed alpha
Helix 2	AA2	A	252	278	Right-handed alpha
Helix 3	AA3	A	293	303	Right-handed alpha
Helix 4	AA4	A	312	316	Right-handed 310
Helix 5	AA5	A	333	352	Right-handed alpha
Helix 6	AA6	A	370	391	Right-handed alpha
Helix 7	AA7	B	15	25	Right-handed alpha
Helix 8	AA8	B	29	34	Right-handed alpha
Helix 9	AA9	G	15	24	Right-handed alpha
Helix 10	AB1	G	29	44	Right-handed alpha
Helix 11	AB2	I	16	25	Right-handed alpha
Helix 12	AB3	I	29	61	Right-handed alpha
Helix 13	AB4	I	66	95	Right-handed alpha
Helix 14	AB5	I	102	137	Right-handed alpha
Helix 15	AB6	I	137	144	Right-handed alpha
Helix 16	AB7	I	149	165	Right-handed alpha
Helix 17	AB8	I	165	172	Right-handed alpha
Helix 18	AB9	I	191	207	Right-handed alpha
Helix 19	AC1	I	207	227	Right-handed alpha
Helix 20	AC2	I	240	270	Right-handed alpha
Helix 21	AC3	I	277	308	Right-handed alpha
Helix 22	AC4	N	87	91	Right-handed 310

There are 10 sheets in PDB entry 9K25. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1,

There are 6 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	210	214	first strand
Strand 2	A	217	222	anti-parallel
Strand 3	A	41	47	parallel
Strand 4	A	243	249	parallel
Strand 5	A	286	292	parallel
Strand 6	A	359	362	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	B	49	51	first strand
Strand 2	B	336	339	anti-parallel
Strand 3	B	327	328	anti-parallel
Strand 4	B	319	320	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	B	58	63	first strand
Strand 2	B	70	74	anti-parallel
Strand 3	B	78	81	anti-parallel
Strand 4	B	91	94	anti-parallel

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There are 3 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	104	105	first strand
Strand 2	B	111	113	anti-parallel
Strand 3	B	123	125	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	B	149	151	first strand
Strand 2	B	157	159	anti-parallel
Strand 3	B	166	168	anti-parallel
Strand 4	B	178	180	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	187	192	first strand
Strand 2	B	198	203	anti-parallel
Strand 3	B	208	212	anti-parallel
Strand 4	B	220	221	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	B	229	234	first strand
Strand 2	B	240	245	anti-parallel
Strand 3	B	250	254	anti-parallel
Strand 4	B	259	264	anti-parallel

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There are 3 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	275	277	first strand
Strand 2	B	284	288	anti-parallel
Strand 3	B	295	298	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	N	5	7	first strand
Strand 2	N	18	23	anti-parallel
Strand 3	N	78	83	anti-parallel
Strand 4	N	68	73	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	N	34	39	first strand
Strand 2	N	93	98	anti-parallel
Strand 3	N	122	123	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: 9K25

Analysis of interatomic Contacts of Structural Units in PDB entry:
9K25