Analysis of interatomic Contacts of Structural Units in PDB entry:
2I1W

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 2I1W entry

There are 4 chains in PDB entry 2I1W (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 1	GLU 263
B	MET 1	HIS 267
C	MET 1	GLU 263
D	MET 1	GLU 263

There are 30 helices in PDB entry 2I1W. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	10	25	Right-handed alpha
Helix 2	2	A	44	55	Right-handed alpha
Helix 3	3	A	56	59	Right-handed 310
Helix 4	4	A	79	81	Right-handed 310
Helix 5	5	A	82	92	Right-handed alpha
Helix 6	6	A	157	161	Right-handed 310
Helix 7	7	A	162	167	Right-handed alpha
Helix 8	8	A	252	262	Right-handed alpha
Helix 9	9	B	10	24	Right-handed alpha
Helix 10	10	B	25	27	Right-handed 310
Helix 11	11	B	44	55	Right-handed alpha
Helix 12	12	B	58	62	Right-handed 310
Helix 13	13	B	79	81	Right-handed 310
Helix 14	14	B	82	93	Right-handed alpha
Helix 15	15	B	157	161	Right-handed 310
Helix 16	16	B	162	167	Right-handed alpha
Helix 17	17	B	252	262	Right-handed alpha
Helix 18	18	C	10	24	Right-handed alpha
Helix 19	19	C	44	55	Right-handed alpha
Helix 20	20	C	82	90	Right-handed alpha
Helix 21	21	C	157	161	Right-handed 310
Helix 22	22	C	162	167	Right-handed alpha
Helix 23	23	C	252	262	Right-handed alpha
Helix 24	24	D	10	26	Right-handed alpha
Helix 25	25	D	44	55	Right-handed alpha
Helix 26	26	D	79	81	Right-handed 310
Helix 27	27	D	82	92	Right-handed alpha
Helix 28	28	D	157	161	Right-handed 310
Helix 29	29	D	162	167	Right-handed alpha
Helix 30	30	D	252	262	Right-handed alpha

There are 12 sheets in PDB entry 2I1W. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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	30	31	first strand
Strand 2	A	2	7	parallel
Strand 3	A	38	42	parallel
Strand 4	A	63	67	parallel

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There are 6 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	115	120	first strand
Strand 2	A	96	109	anti-parallel
Strand 3	A	231	247	anti-parallel
Strand 4	A	207	211	anti-parallel
Strand 5	A	133	139	anti-parallel
Strand 6	A	142	149	anti-parallel

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There are 7 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	224	228	first strand
Strand 2	A	217	221	anti-parallel
Strand 3	A	123	127	anti-parallel
Strand 4	A	151	155	anti-parallel
Strand 5	A	178	184	anti-parallel
Strand 6	A	199	202	anti-parallel
Strand 7	B	171	172	parallel

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There are 7 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	171	172	first strand
Strand 2	B	199	202	parallel
Strand 3	B	178	184	anti-parallel
Strand 4	B	151	155	anti-parallel
Strand 5	B	123	128	anti-parallel
Strand 6	B	217	221	anti-parallel
Strand 7	B	224	228	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	30	31	first strand
Strand 2	B	2	7	parallel
Strand 3	B	38	42	parallel
Strand 4	B	63	67	parallel

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There are 6 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	116	120	first strand
Strand 2	B	96	108	anti-parallel
Strand 3	B	233	247	anti-parallel
Strand 4	B	207	211	anti-parallel
Strand 5	B	133	139	anti-parallel
Strand 6	B	142	149	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	3	7	first strand
Strand 2	C	38	42	parallel
Strand 3	C	63	67	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	C	116	120	first strand
Strand 2	C	96	109	anti-parallel
Strand 3	C	231	247	anti-parallel
Strand 4	C	207	211	anti-parallel
Strand 5	C	133	139	anti-parallel
Strand 6	C	142	149	anti-parallel

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There are 7 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	224	228	first strand
Strand 2	C	217	221	anti-parallel
Strand 3	C	123	128	anti-parallel
Strand 4	C	151	155	anti-parallel
Strand 5	C	178	184	anti-parallel
Strand 6	C	199	202	anti-parallel
Strand 7	D	171	172	parallel

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There are 7 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	171	172	first strand
Strand 2	D	199	201	parallel
Strand 3	D	179	184	anti-parallel
Strand 4	D	151	155	anti-parallel
Strand 5	D	123	128	anti-parallel
Strand 6	D	217	221	anti-parallel
Strand 7	D	224	228	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	D	30	31	first strand
Strand 2	D	2	7	parallel
Strand 3	D	38	42	parallel
Strand 4	D	63	67	parallel

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There are 6 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	116	120	first strand
Strand 2	D	97	108	anti-parallel
Strand 3	D	233	246	anti-parallel
Strand 4	D	206	211	anti-parallel
Strand 5	D	133	139	anti-parallel
Strand 6	D	142	149	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: 2I1W

Analysis of interatomic Contacts of Structural Units in PDB entry:
2I1W