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

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 3TRS entry

There are 4 chains in PDB entry 3TRS (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLU 2	GLY 38
B	GLU 3	VAL 173
C	GLU 2	ALA 31
D	GLU 4	VAL 173

There is 1 helix in PDB entry 3TRS. Click on helix number for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	B	142	146	Right-handed 310

There are 10 sheets in PDB entry 3TRS. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J,

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	3	4	first strand
Strand 2	B	147	153	parallel
Strand 3	A	7	13	anti-parallel
Strand 4	B	104	110	anti-parallel
Strand 5	B	4	13	anti-parallel
Strand 6	B	120	121	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	49	52	first strand
Strand 2	B	35	45	anti-parallel
Strand 3	B	22	32	anti-parallel
Strand 4	B	4	13	anti-parallel
Strand 5	B	104	110	anti-parallel
Strand 6	A	7	13	anti-parallel
Strand 7	B	147	153	anti-parallel
Strand 8	B	156	157	anti-parallel

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There are 6 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	86	92	first strand
Strand 2	B	74	81	anti-parallel
Strand 3	B	62	71	anti-parallel
Strand 4	A	17	25	anti-parallel
Strand 5	B	126	136	anti-parallel
Strand 6	B	139	141	anti-parallel

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There are 7 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	86	92	first strand
Strand 2	B	74	81	anti-parallel
Strand 3	B	62	71	anti-parallel
Strand 4	A	17	25	anti-parallel
Strand 5	B	126	136	anti-parallel
Strand 6	B	168	172	anti-parallel
Strand 7	B	159	163	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	36	37	first strand
Strand 2	D	113	114	anti-parallel
Strand 3	D	117	118	anti-parallel

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There are 2 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	113	114	first strand
Strand 2	B	117	118	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	3	4	first strand
Strand 2	D	147	153	parallel
Strand 3	C	7	13	anti-parallel
Strand 4	D	104	110	anti-parallel
Strand 5	D	5	13	anti-parallel
Strand 6	D	120	121	parallel

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There are 8 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	50	51	first strand
Strand 2	D	35	45	anti-parallel
Strand 3	D	22	32	anti-parallel
Strand 4	D	5	13	anti-parallel
Strand 5	D	104	110	anti-parallel
Strand 6	C	7	13	anti-parallel
Strand 7	D	147	153	anti-parallel
Strand 8	D	156	157	anti-parallel

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There are 6 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	86	92	first strand
Strand 2	D	74	81	anti-parallel
Strand 3	D	62	71	anti-parallel
Strand 4	C	17	25	anti-parallel
Strand 5	D	126	136	anti-parallel
Strand 6	D	139	141	anti-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	86	92	first strand
Strand 2	D	74	81	anti-parallel
Strand 3	D	62	71	anti-parallel
Strand 4	C	17	25	anti-parallel
Strand 5	D	126	136	anti-parallel
Strand 6	D	168	172	anti-parallel
Strand 7	D	159	163	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: 3TRS

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