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

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 3PSK entry

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

Chain ID	Initial residue	Terminal residue
A	ILE 1242	SER 1440
B	ILE 1242	SER 1440
C	ARG 1252	THR 1436
D	ARG 1252	GLN 1266

There are 20 helices in PDB entry 3PSK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	1263	1272	Right-handed alpha
Helix 2	2	A	1331	1339	Right-handed alpha
Helix 3	3	A	1339	1352	Right-handed alpha
Helix 4	4	A	1360	1373	Right-handed alpha
Helix 5	5	A	1426	1438	Right-handed alpha
Helix 6	6	B	1263	1273	Right-handed alpha
Helix 7	7	B	1331	1339	Right-handed alpha
Helix 8	8	B	1339	1352	Right-handed alpha
Helix 9	9	B	1360	1373	Right-handed alpha
Helix 10	10	B	1426	1439	Right-handed alpha
Helix 11	11	C	1263	1272	Right-handed alpha
Helix 12	12	C	1331	1339	Right-handed alpha
Helix 13	13	C	1339	1352	Right-handed alpha
Helix 14	14	C	1360	1374	Right-handed alpha
Helix 15	15	C	1426	1435	Right-handed alpha
Helix 16	16	D	1263	1272	Right-handed alpha
Helix 17	17	D	1331	1339	Right-handed alpha
Helix 18	18	D	1339	1352	Right-handed alpha
Helix 19	19	D	1360	1374	Right-handed alpha
Helix 20	20	D	1426	1438	Right-handed alpha

There are 8 sheets in PDB entry 3PSK. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 5 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	1279	1283	first strand
Strand 2	A	1290	1298	anti-parallel
Strand 3	A	1301	1310	anti-parallel
Strand 4	A	1321	1324	anti-parallel
Strand 5	A	1327	1329	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	1380	1385	first strand
Strand 2	A	1392	1398	anti-parallel
Strand 3	A	1406	1412	anti-parallel
Strand 4	A	1417	1419	anti-parallel
Strand 5	A	1422	1424	anti-parallel

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There are 5 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	1279	1283	first strand
Strand 2	B	1290	1298	anti-parallel
Strand 3	B	1301	1310	anti-parallel
Strand 4	B	1321	1324	anti-parallel
Strand 5	B	1327	1329	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	1380	1386	first strand
Strand 2	B	1392	1398	anti-parallel
Strand 3	B	1406	1412	anti-parallel
Strand 4	B	1417	1419	anti-parallel
Strand 5	B	1422	1424	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	C	1279	1283	first strand
Strand 2	C	1290	1298	anti-parallel
Strand 3	C	1301	1310	anti-parallel
Strand 4	C	1321	1324	anti-parallel
Strand 5	C	1327	1329	anti-parallel

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There are 5 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	1380	1385	first strand
Strand 2	C	1392	1398	anti-parallel
Strand 3	C	1406	1412	anti-parallel
Strand 4	C	1417	1419	anti-parallel
Strand 5	C	1422	1424	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	1279	1283	first strand
Strand 2	D	1290	1298	anti-parallel
Strand 3	D	1301	1310	anti-parallel
Strand 4	D	1321	1324	anti-parallel
Strand 5	D	1327	1329	anti-parallel

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There are 5 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	1380	1385	first strand
Strand 2	D	1392	1398	anti-parallel
Strand 3	D	1406	1412	anti-parallel
Strand 4	D	1417	1419	anti-parallel
Strand 5	D	1422	1424	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: 3PSK

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