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

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 4IIQ entry

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

Chain ID	Initial residue	Terminal residue
A	GLN 2	PRO 201
B	ALA 2	ALA 244
C	ILE 1	LEU 155
C	GLU 157	GLU 385

There are 10 helices in PDB entry 4IIQ. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	79	83	Right-handed 310
Helix 2	2	B	82	86	Right-handed 310
Helix 3	3	B	132	140	Right-handed alpha
Helix 4	4	B	199	203	Right-handed alpha
Helix 5	5	C	160	165	Right-handed alpha
Helix 6	6	C	168	197	Right-handed alpha
Helix 7	7	C	248	259	Right-handed alpha
Helix 8	8	C	259	272	Right-handed alpha
Helix 9	9	C	272	285	Right-handed alpha
Helix 10	10	C	285	290	Right-handed alpha

There are 17 sheets in PDB entry 4IIQ. 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,

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	3	5	first strand
Strand 2	A	18	25	anti-parallel
Strand 3	A	70	75	anti-parallel
Strand 4	A	60	65	anti-parallel
Strand 5	A	53	57	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	9	13	first strand
Strand 2	A	103	108	parallel
Strand 3	A	85	91	anti-parallel
Strand 4	A	32	37	anti-parallel
Strand 5	A	44	49	anti-parallel

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There are 4 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	9	13	first strand
Strand 2	A	103	108	parallel
Strand 3	A	85	91	anti-parallel
Strand 4	A	97	99	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	117	120	first strand
Strand 2	A	130	135	anti-parallel
Strand 3	A	171	176	anti-parallel
Strand 4	A	151	154	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	A	158	159	first strand
Strand 2	B	171	173	anti-parallel
Strand 3	B	189	198	anti-parallel
Strand 4	B	141	151	anti-parallel
Strand 5	B	125	129	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	158	159	first strand
Strand 2	B	171	173	anti-parallel
Strand 3	B	189	198	anti-parallel
Strand 4	B	178	179	anti-parallel

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There are 4 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	4	7	first strand
Strand 2	B	19	25	anti-parallel
Strand 3	B	74	78	anti-parallel
Strand 4	B	65	68	anti-parallel

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There are 6 strands in H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	10	14	first strand
Strand 2	B	110	115	parallel
Strand 3	B	87	94	anti-parallel
Strand 4	B	31	37	anti-parallel
Strand 5	B	44	51	anti-parallel
Strand 6	B	54	57	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	10	14	first strand
Strand 2	B	110	115	parallel
Strand 3	B	87	94	anti-parallel
Strand 4	B	105	106	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	165	167	first strand
Strand 2	B	156	162	anti-parallel
Strand 3	B	208	215	anti-parallel
Strand 4	B	234	241	anti-parallel

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There are 4 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	6	11	first strand
Strand 2	C	23	30	anti-parallel
Strand 3	C	61	66	anti-parallel
Strand 4	C	49	50	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	6	11	first strand
Strand 2	C	23	30	anti-parallel
Strand 3	C	61	66	anti-parallel
Strand 4	C	54	55	anti-parallel

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There are 4 strands in M 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	35	41	anti-parallel
Strand 3	C	77	83	anti-parallel
Strand 4	C	90	93	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	157	158	first strand
Strand 2	C	144	150	anti-parallel
Strand 3	C	135	141	anti-parallel
Strand 4	C	116	125	anti-parallel
Strand 5	C	204	213	anti-parallel
Strand 6	C	219	227	anti-parallel
Strand 7	C	230	236	anti-parallel
Strand 8	C	241	244	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	296	301	first strand
Strand 2	C	310	318	anti-parallel
Strand 3	C	351	358	anti-parallel
Strand 4	C	338	339	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	296	301	first strand
Strand 2	C	310	318	anti-parallel
Strand 3	C	351	358	anti-parallel
Strand 4	C	344	345	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	332	333	first strand
Strand 2	C	324	329	anti-parallel
Strand 3	C	367	372	anti-parallel
Strand 4	C	377	383	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: 4IIQ

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