Analysis of interatomic Contacts of Structural Units in PDB entry:
1IGY

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 1IGY entry

There are 4 chains in PDB entry 1IGY (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LYS 2	CYS 214
B	VAL 2	HIS 474
C	LYS 2	CYS 214
D	VAL 2	HIS 474

There are 20 helices in PDB entry 1IGY. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	80	82	Right-handed 310
Helix 2	2	A	122	127	Right-handed alpha
Helix 3	3	A	183	187	Right-handed alpha
Helix 4	4	B	61	63	Right-handed 310
Helix 5	5	B	73	75	Right-handed 310
Helix 6	6	B	84	86	Right-handed 310
Helix 7	7	B	195	202	Right-handed alpha
Helix 8	8	B	329	334	Right-handed alpha
Helix 9	9	B	445	449	Right-handed alpha
Helix 10	10	B	464	466	Right-handed 310
Helix 11	11	C	122	127	Right-handed alpha
Helix 12	12	C	183	187	Right-handed alpha
Helix 13	13	D	61	63	Right-handed 310
Helix 14	14	D	73	75	Right-handed 310
Helix 15	15	D	84	86	Right-handed 310
Helix 16	16	D	195	202	Right-handed alpha
Helix 17	17	D	260	264	Right-handed alpha
Helix 18	18	D	329	334	Right-handed alpha
Helix 19	19	D	445	449	Right-handed alpha
Helix 20	20	D	464	466	Right-handed 310

There are 24 sheets in PDB entry 1IGY. 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,

There are 4 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	4	7	first strand
Strand 2	A	19	25	anti-parallel
Strand 3	A	70	75	anti-parallel
Strand 4	A	62	67	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	102	106	first strand
Strand 2	A	85	90	anti-parallel
Strand 3	A	33	38	anti-parallel
Strand 4	A	45	48	anti-parallel
Strand 5	A	53	55	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	114	118	first strand
Strand 2	A	129	137	anti-parallel
Strand 3	A	175	182	anti-parallel
Strand 4	A	159	163	anti-parallel

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There are 3 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	145	149	first strand
Strand 2	A	191	197	anti-parallel
Strand 3	A	205	210	anti-parallel

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There are 4 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	3	6	first strand
Strand 2	B	18	24	anti-parallel
Strand 3	B	77	82	anti-parallel
Strand 4	B	67	72	anti-parallel

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There are 5 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	107	109	first strand
Strand 2	B	88	94	anti-parallel
Strand 3	B	34	39	anti-parallel
Strand 4	B	45	51	anti-parallel
Strand 5	B	57	59	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	120	124	first strand
Strand 2	B	138	147	anti-parallel
Strand 3	B	185	194	anti-parallel
Strand 4	B	171	173	anti-parallel

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There are 3 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	152	157	first strand
Strand 2	B	206	212	anti-parallel
Strand 3	B	217	222	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	252	256	first strand
Strand 2	B	271	277	anti-parallel
Strand 3	B	319	326	anti-parallel
Strand 4	B	310	312	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	B	287	292	first strand
Strand 2	B	337	343	anti-parallel
Strand 3	B	351	357	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	B	368	372	first strand
Strand 2	B	385	393	anti-parallel
Strand 3	B	437	444	anti-parallel
Strand 4	B	419	421	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	401	408	first strand
Strand 2	B	454	459	anti-parallel
Strand 3	B	468	471	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	4	7	first strand
Strand 2	C	19	25	anti-parallel
Strand 3	C	70	75	anti-parallel
Strand 4	C	62	67	anti-parallel

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There are 5 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	102	106	first strand
Strand 2	C	85	90	anti-parallel
Strand 3	C	33	38	anti-parallel
Strand 4	C	45	48	anti-parallel
Strand 5	C	53	55	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	114	118	first strand
Strand 2	C	129	137	anti-parallel
Strand 3	C	175	182	anti-parallel
Strand 4	C	159	163	anti-parallel

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There are 3 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	145	149	first strand
Strand 2	C	191	197	anti-parallel
Strand 3	C	205	210	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	D	3	6	first strand
Strand 2	D	18	24	anti-parallel
Strand 3	D	77	82	anti-parallel
Strand 4	D	67	72	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	D	107	109	first strand
Strand 2	D	88	94	anti-parallel
Strand 3	D	34	39	anti-parallel
Strand 4	D	45	51	anti-parallel
Strand 5	D	57	59	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	120	124	first strand
Strand 2	D	138	147	anti-parallel
Strand 3	D	185	194	anti-parallel
Strand 4	D	171	173	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	D	152	157	first strand
Strand 2	D	206	212	anti-parallel
Strand 3	D	217	222	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	252	256	first strand
Strand 2	D	271	277	anti-parallel
Strand 3	D	319	326	anti-parallel
Strand 4	D	310	312	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	287	292	first strand
Strand 2	D	337	343	anti-parallel
Strand 3	D	351	357	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	368	372	first strand
Strand 2	D	385	393	anti-parallel
Strand 3	D	437	444	anti-parallel
Strand 4	D	419	421	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	401	408	first strand
Strand 2	D	454	459	anti-parallel
Strand 3	D	468	471	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: 1IGY

Analysis of interatomic Contacts of Structural Units in PDB entry:
1IGY