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

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 4XQQ entry

There are 8 chains in PDB entry 4XQQ (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	VAL 140	ILE 238
B	GLU 141	ILE 238
C	VAL 140	ILE 238
D	SER 139	ILE 238
E	T 1	A 16
F	A 1	G 16
G	T 1	A 16
H	A 1	G 16

There are 8 helices in PDB entry 4XQQ. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	185	193	Right-handed alpha
Helix 2	AA2	A	234	238	Right-handed 310
Helix 3	AA3	B	185	193	Right-handed alpha
Helix 4	AA4	B	234	238	Right-handed 310
Helix 5	AA5	C	185	193	Right-handed alpha
Helix 6	AA6	C	234	238	Right-handed 310
Helix 7	AA7	D	185	193	Right-handed alpha
Helix 8	AA8	D	234	238	Right-handed 310

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

There are 2 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	142	147	first strand
Strand 2	A	150	155	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	A	179	183	first strand
Strand 2	A	170	175	anti-parallel
Strand 3	A	159	164	anti-parallel
Strand 4	A	203	206	anti-parallel
Strand 5	A	196	200	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	227	229	first strand
Strand 2	A	219	222	anti-parallel
Strand 3	A	210	214	anti-parallel
Strand 4	C	150	155	anti-parallel
Strand 5	C	142	147	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	B	142	147	first strand
Strand 2	B	150	155	anti-parallel
Strand 3	C	210	214	anti-parallel
Strand 4	C	219	222	anti-parallel
Strand 5	C	227	229	anti-parallel

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There are 5 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	179	183	first strand
Strand 2	B	170	175	anti-parallel
Strand 3	B	159	164	anti-parallel
Strand 4	B	203	206	anti-parallel
Strand 5	B	196	200	anti-parallel

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There are 3 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	210	214	first strand
Strand 2	B	219	222	anti-parallel
Strand 3	B	227	229	anti-parallel

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There are 5 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	179	183	first strand
Strand 2	C	170	175	anti-parallel
Strand 3	C	159	164	anti-parallel
Strand 4	C	203	206	anti-parallel
Strand 5	C	196	200	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	D	142	147	first strand
Strand 2	D	150	155	anti-parallel

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There are 5 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	179	183	first strand
Strand 2	D	170	175	anti-parallel
Strand 3	D	159	164	anti-parallel
Strand 4	D	203	206	anti-parallel
Strand 5	D	196	200	anti-parallel

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There are 3 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	210	214	first strand
Strand 2	D	219	222	anti-parallel
Strand 3	D	227	229	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: 4XQQ

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