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

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 4IUA entry

There are 5 chains in PDB entry 4IUA (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ARG 37	ALA 290
B	ARG 37	ALA 290
C	ARG 37	ALA 290
D	ARG 37	ALA 290
E	ARG 37	GLU 249

There are 33 helices in PDB entry 4IUA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	39	41	Right-handed 310
Helix 2	2	A	67	78	Right-handed alpha
Helix 3	3	A	123	127	Right-handed alpha
Helix 4	4	A	164	168	Right-handed 310
Helix 5	5	A	247	251	Right-handed 310
Helix 6	6	B	39	41	Right-handed 310
Helix 7	7	B	67	78	Right-handed alpha
Helix 8	8	B	123	127	Right-handed alpha
Helix 9	9	C	39	41	Right-handed 310
Helix 10	10	C	67	78	Right-handed alpha
Helix 11	11	C	124	126	Right-handed 310
Helix 12	12	C	206	211	Right-handed alpha
Helix 13	13	C	247	251	Right-handed 310
Helix 14	14	D	39	41	Right-handed 310
Helix 15	15	D	67	78	Right-handed alpha
Helix 16	16	D	123	127	Right-handed alpha
Helix 17	17	E	39	41	Right-handed 310
Helix 18	18	E	67	78	Right-handed alpha
Helix 19	19	E	124	126	Right-handed 310
Helix 20	20	E	164	168	Right-handed 310
Helix 21	21	E	206	211	Right-handed alpha
Helix 22	22	F	39	41	Right-handed 310
Helix 23	23	F	67	78	Right-handed alpha
Helix 24	24	F	123	127	Right-handed alpha
Helix 25	25	F	206	211	Right-handed alpha
Helix 26	26	G	39	41	Right-handed 310
Helix 27	27	G	67	75	Right-handed alpha
Helix 28	28	G	124	126	Right-handed 310
Helix 29	29	H	39	41	Right-handed 310
Helix 30	30	H	67	78	Right-handed alpha
Helix 31	31	H	124	126	Right-handed 310
Helix 32	32	H	165	169	Right-handed 310
Helix 33	33	H	206	211	Right-handed alpha

There are 26 sheets in PDB entry 4IUA. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z,

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	43	47	first strand
Strand 2	A	117	122	anti-parallel
Strand 3	A	87	91	anti-parallel
Strand 4	A	96	100	anti-parallel
Strand 5	A	62	64	anti-parallel

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There are 2 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	189	191	first strand
Strand 2	A	199	201	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	271	273	first strand
Strand 2	A	281	283	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	43	47	first strand
Strand 2	B	117	122	anti-parallel
Strand 3	B	87	91	anti-parallel
Strand 4	B	96	100	anti-parallel
Strand 5	B	62	64	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	51	52	first strand
Strand 2	B	110	111	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	189	191	first strand
Strand 2	B	199	201	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	271	273	first strand
Strand 2	B	281	283	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	C	43	46	first strand
Strand 2	C	117	122	anti-parallel
Strand 3	C	87	91	anti-parallel
Strand 4	C	96	100	anti-parallel
Strand 5	C	62	64	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	50	52	first strand
Strand 2	C	110	112	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	150	151	first strand
Strand 2	C	189	192	anti-parallel
Strand 3	C	199	201	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	271	273	first strand
Strand 2	C	281	283	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	43	47	first strand
Strand 2	D	117	122	anti-parallel
Strand 3	D	87	91	anti-parallel
Strand 4	D	96	100	anti-parallel
Strand 5	D	61	64	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	189	191	first strand
Strand 2	D	199	201	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	271	276	first strand
Strand 2	D	279	283	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	43	47	first strand
Strand 2	E	117	122	anti-parallel
Strand 3	E	87	91	anti-parallel
Strand 4	E	96	100	anti-parallel
Strand 5	E	61	64	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	189	191	first strand
Strand 2	E	199	201	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	271	273	first strand
Strand 2	E	281	283	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	43	46	first strand
Strand 2	F	117	122	anti-parallel
Strand 3	F	87	91	anti-parallel
Strand 4	F	96	100	anti-parallel
Strand 5	F	62	64	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	150	151	first strand
Strand 2	F	189	192	anti-parallel
Strand 3	F	199	201	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	233	234	first strand
Strand 2	F	271	274	anti-parallel
Strand 3	F	281	283	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	43	47	first strand
Strand 2	G	117	122	anti-parallel
Strand 3	G	87	91	anti-parallel
Strand 4	G	96	100	anti-parallel
Strand 5	G	62	64	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	189	191	first strand
Strand 2	G	199	201	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	271	273	first strand
Strand 2	G	281	283	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	43	47	first strand
Strand 2	H	117	122	anti-parallel
Strand 3	H	87	91	anti-parallel
Strand 4	H	96	100	anti-parallel
Strand 5	H	62	64	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	189	191	first strand
Strand 2	H	199	201	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	271	273	first strand
Strand 2	H	281	283	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: 4IUA

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