Analysis of interatomic Contacts of Structural Units in PDB entry:
3N50

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 3N50 entry

There are 6 chains in PDB entry 3N50 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLU 251	MET 384
B	ALA 252	SER 405
C	GLU 251	LEU 403
D	ALA 252	SER 405
E	ALA 252	LEU 403
F	ALA 252	SER 405

There are 15 helices in PDB entry 3N50. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	341	355	Right-handed alpha
Helix 2	2	A	366	381	Right-handed alpha
Helix 3	3	B	343	355	Right-handed alpha
Helix 4	4	B	366	383	Right-handed alpha
Helix 5	5	B	386	404	Right-handed alpha
Helix 6	6	C	341	355	Right-handed alpha
Helix 7	7	C	366	381	Right-handed alpha
Helix 8	8	D	343	355	Right-handed alpha
Helix 9	9	D	366	383	Right-handed alpha
Helix 10	10	D	386	404	Right-handed alpha
Helix 11	11	E	341	353	Right-handed alpha
Helix 12	12	E	366	381	Right-handed alpha
Helix 13	13	F	343	355	Right-handed alpha
Helix 14	14	F	366	383	Right-handed alpha
Helix 15	15	F	386	404	Right-handed alpha

There are 16 sheets in PDB entry 3N50. 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 8 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	258	260	first strand
Strand 2	A	271	275	anti-parallel
Strand 3	A	301	305	anti-parallel
Strand 4	A	290	298	anti-parallel
Strand 5	A	284	287	anti-parallel
Strand 6	A	313	321	anti-parallel
Strand 7	A	332	337	anti-parallel
Strand 8	A	263	265	parallel

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There are 7 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	258	260	first strand
Strand 2	A	271	275	anti-parallel
Strand 3	A	301	305	anti-parallel
Strand 4	A	290	298	anti-parallel
Strand 5	A	284	287	anti-parallel
Strand 6	A	313	321	anti-parallel
Strand 7	A	324	326	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	B	255	260	first strand
Strand 2	B	271	277	anti-parallel
Strand 3	B	301	305	anti-parallel
Strand 4	B	295	298	anti-parallel

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There are 5 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	263	265	first strand
Strand 2	B	332	337	parallel
Strand 3	B	313	321	anti-parallel
Strand 4	B	284	287	anti-parallel
Strand 5	B	290	293	anti-parallel

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There are 4 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	263	265	first strand
Strand 2	B	332	337	parallel
Strand 3	B	313	321	anti-parallel
Strand 4	B	324	326	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	255	260	first strand
Strand 2	C	271	277	anti-parallel
Strand 3	C	301	305	anti-parallel
Strand 4	C	290	298	anti-parallel
Strand 5	C	284	287	anti-parallel
Strand 6	C	313	321	anti-parallel
Strand 7	C	332	337	anti-parallel
Strand 8	C	263	265	parallel

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There are 7 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	255	260	first strand
Strand 2	C	271	277	anti-parallel
Strand 3	C	301	305	anti-parallel
Strand 4	C	290	298	anti-parallel
Strand 5	C	284	287	anti-parallel
Strand 6	C	313	321	anti-parallel
Strand 7	C	324	326	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	255	260	first strand
Strand 2	D	271	277	anti-parallel
Strand 3	D	301	305	anti-parallel
Strand 4	D	295	298	anti-parallel

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There are 5 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	263	265	first strand
Strand 2	D	332	337	parallel
Strand 3	D	313	321	anti-parallel
Strand 4	D	284	287	anti-parallel
Strand 5	D	290	293	anti-parallel

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There are 4 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	263	265	first strand
Strand 2	D	332	337	parallel
Strand 3	D	313	321	anti-parallel
Strand 4	D	324	326	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	E	255	260	first strand
Strand 2	E	271	277	anti-parallel
Strand 3	E	301	305	anti-parallel
Strand 4	E	294	298	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	E	263	265	first strand
Strand 2	E	332	337	parallel
Strand 3	E	313	321	anti-parallel
Strand 4	E	284	287	anti-parallel
Strand 5	E	290	292	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	263	265	first strand
Strand 2	E	332	337	parallel
Strand 3	E	313	321	anti-parallel
Strand 4	E	324	326	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	255	260	first strand
Strand 2	F	271	277	anti-parallel
Strand 3	F	301	305	anti-parallel
Strand 4	F	295	298	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	263	265	first strand
Strand 2	F	332	337	parallel
Strand 3	F	313	321	anti-parallel
Strand 4	F	284	287	anti-parallel
Strand 5	F	290	293	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	263	265	first strand
Strand 2	F	332	337	parallel
Strand 3	F	313	321	anti-parallel
Strand 4	F	324	326	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: 3N50

Analysis of interatomic Contacts of Structural Units in PDB entry:
3N50