Analysis of interatomic Contacts of Structural Units in PDB entry:
4U4L

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 4U4L entry

There are 4 chains in PDB entry 4U4L (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 39	ARG 270
B	GLU 40	ARG 270
C	ASP 43	ARG 270
D	THR 41	ARG 270

There are 31 helices in PDB entry 4U4L. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	94	109	Right-handed alpha
Helix 2	AA2	A	122	127	Right-handed alpha
Helix 3	AA3	A	128	135	Right-handed alpha
Helix 4	AA4	A	143	149	Right-handed alpha
Helix 5	AA5	A	170	174	Right-handed 310
Helix 6	AA6	A	228	240	Right-handed alpha
Helix 7	AA7	A	256	268	Right-handed alpha
Helix 8	AA8	B	94	109	Right-handed alpha
Helix 9	AA9	B	122	127	Right-handed alpha
Helix 10	AB1	B	128	135	Right-handed alpha
Helix 11	AB2	B	143	149	Right-handed alpha
Helix 12	AB3	B	150	153	Right-handed 310
Helix 13	AB4	B	170	174	Right-handed 310
Helix 14	AB5	B	228	240	Right-handed alpha
Helix 15	AB6	B	256	268	Right-handed alpha
Helix 16	AB7	C	94	109	Right-handed alpha
Helix 17	AB8	C	122	127	Right-handed alpha
Helix 18	AB9	C	128	135	Right-handed alpha
Helix 19	AC1	C	143	149	Right-handed alpha
Helix 20	AC2	C	150	153	Right-handed 310
Helix 21	AC3	C	170	174	Right-handed 310
Helix 22	AC4	C	228	240	Right-handed alpha
Helix 23	AC5	C	256	268	Right-handed alpha
Helix 24	AC6	D	94	109	Right-handed alpha
Helix 25	AC7	D	122	127	Right-handed alpha
Helix 26	AC8	D	128	135	Right-handed alpha
Helix 27	AC9	D	143	149	Right-handed alpha
Helix 28	AD1	D	150	153	Right-handed 310
Helix 29	AD2	D	170	174	Right-handed 310
Helix 30	AD3	D	228	240	Right-handed alpha
Helix 31	AD4	D	256	268	Right-handed alpha

There are 8 sheets in PDB entry 4U4L. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8,

There are 8 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	44	46	first strand
Strand 2	A	49	55	anti-parallel
Strand 3	A	58	65	anti-parallel
Strand 4	A	73	82	anti-parallel
Strand 5	A	85	89	anti-parallel
Strand 6	A	113	117	parallel
Strand 7	A	138	142	parallel
Strand 8	A	159	161	parallel

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There are 4 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	180	183	first strand
Strand 2	A	195	198	anti-parallel
Strand 3	A	203	207	anti-parallel
Strand 4	A	245	248	parallel

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There are 8 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	43	46	first strand
Strand 2	B	49	55	anti-parallel
Strand 3	B	58	67	anti-parallel
Strand 4	B	71	82	anti-parallel
Strand 5	B	85	89	anti-parallel
Strand 6	B	113	117	parallel
Strand 7	B	138	142	parallel
Strand 8	B	159	161	parallel

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There are 4 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	180	183	first strand
Strand 2	B	195	198	anti-parallel
Strand 3	B	203	207	anti-parallel
Strand 4	B	245	248	parallel

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There are 8 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	44	46	first strand
Strand 2	C	49	55	anti-parallel
Strand 3	C	58	64	anti-parallel
Strand 4	C	74	82	anti-parallel
Strand 5	C	85	89	anti-parallel
Strand 6	C	113	117	parallel
Strand 7	C	138	142	parallel
Strand 8	C	159	161	parallel

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There are 4 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	180	183	first strand
Strand 2	C	195	198	anti-parallel
Strand 3	C	203	207	anti-parallel
Strand 4	C	245	248	parallel

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There are 8 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	43	46	first strand
Strand 2	D	49	55	anti-parallel
Strand 3	D	58	64	anti-parallel
Strand 4	D	74	82	anti-parallel
Strand 5	D	85	89	anti-parallel
Strand 6	D	113	117	parallel
Strand 7	D	138	142	parallel
Strand 8	D	159	161	parallel

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There are 4 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	180	183	first strand
Strand 2	D	195	198	anti-parallel
Strand 3	D	203	207	anti-parallel
Strand 4	D	245	248	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: 4U4L

Analysis of interatomic Contacts of Structural Units in PDB entry:
4U4L