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

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 1ZKK entry

There are 8 chains in PDB entry 1ZKK (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LYS 193	HIS 352
B	ARG 192	HIS 352
C	LYS 193	HIS 352
D	ARG 192	HIS 352
E	LYS 16	ARG 23
F	LYS 16	ASP 24
G	LYS 16	ASP 24
H	LYS 16	ARG 23

There are 20 helices in PDB entry 1ZKK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	194	213	Right-handed alpha
Helix 2	2	A	252	263	Right-handed alpha
Helix 3	3	A	293	297	Right-handed 310
Helix 4	4	A	340	347	Right-handed alpha
Helix 5	5	A	348	352	Right-handed 310
Helix 6	6	B	194	213	Right-handed alpha
Helix 7	7	B	252	263	Right-handed alpha
Helix 8	8	B	293	297	Right-handed 310
Helix 9	9	B	340	347	Right-handed alpha
Helix 10	10	B	348	352	Right-handed 310
Helix 11	11	C	194	213	Right-handed alpha
Helix 12	12	C	252	263	Right-handed alpha
Helix 13	13	C	293	297	Right-handed 310
Helix 14	14	C	340	347	Right-handed alpha
Helix 15	15	C	348	352	Right-handed 310
Helix 16	16	D	194	213	Right-handed alpha
Helix 17	17	D	252	263	Right-handed alpha
Helix 18	18	D	293	297	Right-handed 310
Helix 19	19	D	340	347	Right-handed alpha
Helix 20	20	D	348	352	Right-handed 310

There are 16 sheets in PDB entry 1ZKK. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P,

There are 2 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	218	223	first strand
Strand 2	A	227	232	anti-parallel

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There are 3 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	241	245	first strand
Strand 2	A	315	322	anti-parallel
Strand 3	A	305	312	anti-parallel

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There are 4 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	248	251	first strand
Strand 2	A	280	285	anti-parallel
Strand 3	A	272	277	anti-parallel
Strand 4	E	20	21	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	298	299	first strand
Strand 2	A	333	334	parallel

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There are 2 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	218	223	first strand
Strand 2	B	227	232	anti-parallel

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There are 3 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	241	244	first strand
Strand 2	B	315	322	anti-parallel
Strand 3	B	305	312	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	248	251	first strand
Strand 2	B	280	285	anti-parallel
Strand 3	B	272	277	anti-parallel
Strand 4	F	20	21	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	298	299	first strand
Strand 2	B	333	334	parallel

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There are 2 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	218	223	first strand
Strand 2	C	227	232	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	241	244	first strand
Strand 2	C	315	322	anti-parallel
Strand 3	C	305	312	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	248	251	first strand
Strand 2	C	280	285	anti-parallel
Strand 3	C	272	277	anti-parallel
Strand 4	G	20	21	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	298	299	first strand
Strand 2	C	333	334	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	218	223	first strand
Strand 2	D	227	232	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	241	245	first strand
Strand 2	D	315	322	anti-parallel
Strand 3	D	305	312	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	248	251	first strand
Strand 2	D	280	285	anti-parallel
Strand 3	D	272	277	anti-parallel
Strand 4	H	20	21	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	298	299	first strand
Strand 2	D	333	334	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: 1ZKK

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