Analysis of interatomic Contacts of Structural Units in PDB entry:
6BLK

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 6BLK entry

There are 4 chains in PDB entry 6BLK (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
C	GLY 319	MET 476
D	GLU 325	MET 476
A	VAL 323	MET 476
B	VAL 323	MET 476

There are 19 helices in PDB entry 6BLK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	C	329	344	Right-handed alpha
Helix 2	AA2	C	361	379	Right-handed alpha
Helix 3	AA3	C	410	414	Right-handed 310
Helix 4	AA4	C	435	447	Right-handed alpha
Helix 5	AA5	D	329	342	Right-handed alpha
Helix 6	AA6	D	361	379	Right-handed alpha
Helix 7	AA7	D	410	414	Right-handed 310
Helix 8	AA8	D	435	447	Right-handed alpha
Helix 9	AA9	A	329	344	Right-handed alpha
Helix 10	AB1	A	361	379	Right-handed alpha
Helix 11	AB2	A	410	414	Right-handed 310
Helix 12	AB3	A	415	419	Right-handed 310
Helix 13	AB4	A	435	447	Right-handed alpha
Helix 14	AB5	B	329	344	Right-handed alpha
Helix 15	AB6	B	361	379	Right-handed alpha
Helix 16	AB7	B	410	414	Right-handed 310
Helix 17	AB8	B	415	419	Right-handed 310
Helix 18	AB9	B	424	428	Right-handed 310
Helix 19	AC1	B	435	447	Right-handed alpha

There are 8 sheets in PDB entry 6BLK. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8,

There are 3 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	325	328	first strand
Strand 2	C	356	360	anti-parallel
Strand 3	C	474	475	anti-parallel

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There are 5 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	348	353	first strand
Strand 2	C	385	394	parallel
Strand 3	C	397	403	anti-parallel
Strand 4	C	465	472	anti-parallel
Strand 5	C	450	455	anti-parallel

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There are 3 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	326	328	first strand
Strand 2	D	356	359	anti-parallel
Strand 3	D	474	475	anti-parallel

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There are 5 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	348	353	first strand
Strand 2	D	385	394	parallel
Strand 3	D	397	403	anti-parallel
Strand 4	D	465	472	anti-parallel
Strand 5	D	450	455	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	325	328	first strand
Strand 2	A	356	360	anti-parallel
Strand 3	A	474	475	anti-parallel

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There are 5 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	348	353	first strand
Strand 2	A	385	394	parallel
Strand 3	A	397	403	anti-parallel
Strand 4	A	465	472	anti-parallel
Strand 5	A	450	455	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	325	328	first strand
Strand 2	B	356	360	anti-parallel
Strand 3	B	474	475	anti-parallel

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There are 5 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	348	353	first strand
Strand 2	B	385	394	parallel
Strand 3	B	397	403	anti-parallel
Strand 4	B	466	472	anti-parallel
Strand 5	B	450	454	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: 6BLK

Analysis of interatomic Contacts of Structural Units in PDB entry:
6BLK