Analysis of interatomic Contacts of Structural Units in PDB entry:
4YCI

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 4YCI entry

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

Chain ID	Initial residue	Terminal residue
A	ALA 60	GLU 256
B	GLU 61	GLU 244
C	SER 303	ARG 407
D	SER 303	ARG 407

There are 14 helices in PDB entry 4YCI. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	63	75	Right-handed alpha
Helix 2	AA2	A	138	142	Right-handed 310
Helix 3	AA3	A	184	193	Right-handed alpha
Helix 4	AA4	A	241	256	Right-handed alpha
Helix 5	AA5	B	63	76	Right-handed alpha
Helix 6	AA6	B	184	193	Right-handed alpha
Helix 7	AA7	C	314	318	Right-handed alpha
Helix 8	AA8	C	319	321	Right-handed 310
Helix 9	AA9	C	343	347	Right-handed 310
Helix 10	AB1	C	349	362	Right-handed alpha
Helix 11	AB2	D	314	318	Right-handed alpha
Helix 12	AB3	D	319	321	Right-handed 310
Helix 13	AB4	D	343	347	Right-handed 310
Helix 14	AB5	D	349	362	Right-handed alpha

There are 10 sheets in PDB entry 4YCI. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1,

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	A	178	183	first strand
Strand 2	A	120	133	anti-parallel
Strand 3	A	217	219	anti-parallel

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There are 7 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	178	183	first strand
Strand 2	A	120	133	anti-parallel
Strand 3	A	230	237	anti-parallel
Strand 4	A	85	90	anti-parallel
Strand 5	C	390	406	anti-parallel
Strand 6	C	371	384	anti-parallel
Strand 7	C	323	325	anti-parallel

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There are 5 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	93	97	first strand
Strand 2	A	106	111	anti-parallel
Strand 3	A	202	209	anti-parallel
Strand 4	A	145	154	anti-parallel
Strand 5	A	165	174	anti-parallel

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There are 3 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	178	183	first strand
Strand 2	B	120	133	anti-parallel
Strand 3	B	217	219	anti-parallel

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There are 7 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	178	183	first strand
Strand 2	B	120	133	anti-parallel
Strand 3	B	230	237	anti-parallel
Strand 4	B	85	90	anti-parallel
Strand 5	D	390	406	anti-parallel
Strand 6	D	371	384	anti-parallel
Strand 7	D	323	325	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	B	93	97	first strand
Strand 2	B	106	111	anti-parallel
Strand 3	B	202	209	anti-parallel
Strand 4	B	145	154	anti-parallel
Strand 5	B	165	174	anti-parallel

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There are 2 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	306	308	first strand
Strand 2	C	333	335	anti-parallel

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There are 2 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	311	313	first strand
Strand 2	C	328	330	anti-parallel

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There are 2 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	306	308	first strand
Strand 2	D	333	335	anti-parallel

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There are 2 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	311	313	first strand
Strand 2	D	328	330	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: 4YCI

Analysis of interatomic Contacts of Structural Units in PDB entry:
4YCI