Analysis of interatomic Contacts of Structural Units in PDB entry:
1KHU

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 1KHU entry

There are 4 chains in PDB entry 1KHU (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	PRO 268	SER 465
B	LYS 269	SER 465
C	LYS 269	SER 465
D	HIS 270	GLN 453

There are 28 helices in PDB entry 1KHU. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	320	328	Right-handed alpha
Helix 2	2	A	357	364	Right-handed alpha
Helix 3	3	A	385	394	Right-handed alpha
Helix 4	4	A	399	405	Right-handed alpha
Helix 5	5	A	406	409	Right-handed 310
Helix 6	6	A	428	432	Right-handed 310
Helix 7	7	A	441	452	Right-handed alpha
Helix 8	8	B	320	330	Right-handed alpha
Helix 9	9	B	357	365	Right-handed alpha
Helix 10	10	B	385	396	Right-handed alpha
Helix 11	11	B	399	405	Right-handed alpha
Helix 12	12	B	406	409	Right-handed 310
Helix 13	13	B	428	432	Right-handed 310
Helix 14	14	B	441	452	Right-handed alpha
Helix 15	15	C	320	328	Right-handed alpha
Helix 16	16	C	357	365	Right-handed alpha
Helix 17	17	C	385	396	Right-handed alpha
Helix 18	18	C	399	406	Right-handed alpha
Helix 19	19	C	407	409	Right-handed 310
Helix 20	20	C	428	432	Right-handed 310
Helix 21	21	C	441	454	Right-handed alpha
Helix 22	22	D	320	328	Right-handed alpha
Helix 23	23	D	357	365	Right-handed alpha
Helix 24	24	D	385	396	Right-handed alpha
Helix 25	25	D	400	405	Right-handed alpha
Helix 26	26	D	406	409	Right-handed 310
Helix 27	27	D	428	432	Right-handed 310
Helix 28	28	D	441	452	Right-handed alpha

There are 12 sheets in PDB entry 1KHU. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	372	374	first strand
Strand 2	A	353	356	anti-parallel
Strand 3	A	411	416	anti-parallel
Strand 4	A	435	440	anti-parallel
Strand 5	A	272	278	anti-parallel
Strand 6	A	281	282	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	372	374	first strand
Strand 2	A	353	356	anti-parallel
Strand 3	A	411	416	anti-parallel
Strand 4	A	435	440	anti-parallel
Strand 5	A	272	278	anti-parallel
Strand 6	A	287	288	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	308	310	first strand
Strand 2	A	293	297	parallel
Strand 3	A	334	338	anti-parallel
Strand 4	A	342	347	anti-parallel
Strand 5	A	379	384	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	371	374	first strand
Strand 2	B	353	356	anti-parallel
Strand 3	B	411	416	anti-parallel
Strand 4	B	435	440	anti-parallel
Strand 5	B	272	278	anti-parallel
Strand 6	B	281	282	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	371	374	first strand
Strand 2	B	353	356	anti-parallel
Strand 3	B	411	416	anti-parallel
Strand 4	B	435	440	anti-parallel
Strand 5	B	272	278	anti-parallel
Strand 6	B	287	288	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	308	310	first strand
Strand 2	B	293	297	parallel
Strand 3	B	334	339	anti-parallel
Strand 4	B	342	347	anti-parallel
Strand 5	B	379	384	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	372	374	first strand
Strand 2	C	353	356	anti-parallel
Strand 3	C	411	416	anti-parallel
Strand 4	C	435	440	anti-parallel
Strand 5	C	272	278	anti-parallel
Strand 6	C	281	282	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	372	374	first strand
Strand 2	C	353	356	anti-parallel
Strand 3	C	411	416	anti-parallel
Strand 4	C	435	440	anti-parallel
Strand 5	C	272	278	anti-parallel
Strand 6	C	287	288	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	293	296	first strand
Strand 2	C	334	339	anti-parallel
Strand 3	C	342	347	anti-parallel
Strand 4	C	379	384	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	372	374	first strand
Strand 2	D	353	356	anti-parallel
Strand 3	D	411	416	anti-parallel
Strand 4	D	435	440	anti-parallel
Strand 5	D	272	278	anti-parallel
Strand 6	D	281	282	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	372	374	first strand
Strand 2	D	353	356	anti-parallel
Strand 3	D	411	416	anti-parallel
Strand 4	D	435	440	anti-parallel
Strand 5	D	272	278	anti-parallel
Strand 6	D	287	288	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	308	310	first strand
Strand 2	D	293	297	parallel
Strand 3	D	334	338	anti-parallel
Strand 4	D	342	347	anti-parallel
Strand 5	D	379	384	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: 1KHU

Analysis of interatomic Contacts of Structural Units in PDB entry:
1KHU