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

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 2CXK entry

There are 5 chains in PDB entry 2CXK (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	SER 869	GLY 955
B	GLY 871	GLY 955
C	GLY 871	GLY 955
D	GLY 871	SER 954
E	SER 869	SER 954

There are no helices in PDB entry 2CXK

There are 12 sheets in PDB entry 2CXK. 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 4 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	875	877	first strand
Strand 2	A	888	892	anti-parallel
Strand 3	A	920	924	anti-parallel
Strand 4	A	914	917	anti-parallel

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There are 5 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	880	881	first strand
Strand 2	A	948	952	parallel
Strand 3	A	931	939	anti-parallel
Strand 4	A	902	906	anti-parallel
Strand 5	A	909	912	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	880	881	first strand
Strand 2	A	948	952	parallel
Strand 3	A	931	939	anti-parallel
Strand 4	A	942	943	anti-parallel

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There are 4 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	875	877	first strand
Strand 2	B	888	892	anti-parallel
Strand 3	B	920	924	anti-parallel
Strand 4	B	914	917	anti-parallel

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There are 5 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	880	881	first strand
Strand 2	B	948	952	parallel
Strand 3	B	931	939	anti-parallel
Strand 4	B	902	906	anti-parallel
Strand 5	B	909	912	anti-parallel

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There are 4 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	880	881	first strand
Strand 2	B	948	952	parallel
Strand 3	B	931	939	anti-parallel
Strand 4	B	942	943	anti-parallel

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There are 8 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	875	877	first strand
Strand 2	C	888	892	anti-parallel
Strand 3	C	920	924	anti-parallel
Strand 4	C	909	917	anti-parallel
Strand 5	C	902	906	anti-parallel
Strand 6	C	931	939	anti-parallel
Strand 7	C	948	952	anti-parallel
Strand 8	C	880	881	parallel

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There are 7 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	875	877	first strand
Strand 2	C	888	892	anti-parallel
Strand 3	C	920	924	anti-parallel
Strand 4	C	909	917	anti-parallel
Strand 5	C	902	906	anti-parallel
Strand 6	C	931	939	anti-parallel
Strand 7	C	942	943	anti-parallel

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There are 8 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	875	877	first strand
Strand 2	D	888	892	anti-parallel
Strand 3	D	920	924	anti-parallel
Strand 4	D	909	917	anti-parallel
Strand 5	D	902	906	anti-parallel
Strand 6	D	931	939	anti-parallel
Strand 7	D	948	952	anti-parallel
Strand 8	D	880	881	parallel

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There are 7 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	875	877	first strand
Strand 2	D	888	892	anti-parallel
Strand 3	D	920	924	anti-parallel
Strand 4	D	909	917	anti-parallel
Strand 5	D	902	906	anti-parallel
Strand 6	D	931	939	anti-parallel
Strand 7	D	942	943	anti-parallel

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There are 8 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	875	877	first strand
Strand 2	E	888	892	anti-parallel
Strand 3	E	920	924	anti-parallel
Strand 4	E	909	917	anti-parallel
Strand 5	E	902	906	anti-parallel
Strand 6	E	931	939	anti-parallel
Strand 7	E	948	952	anti-parallel
Strand 8	E	880	881	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	875	877	first strand
Strand 2	E	888	892	anti-parallel
Strand 3	E	920	924	anti-parallel
Strand 4	E	909	917	anti-parallel
Strand 5	E	902	906	anti-parallel
Strand 6	E	931	939	anti-parallel
Strand 7	E	942	943	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: 2CXK

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