Analysis of interatomic Contacts of Structural Units in PDB entry:
2I3A

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 2I3A entry

There are 4 chains in PDB entry 2I3A (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 9	PRO 352
B	ALA 7	PRO 352
C	ALA 9	PRO 352
D	VAL 6	PRO 352

There are 64 helices in PDB entry 2I3A. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	19	31	Right-handed alpha
Helix 2	2	A	32	37	Right-handed alpha
Helix 3	3	A	54	58	Right-handed 310
Helix 4	4	A	62	66	Right-handed 310
Helix 5	5	A	74	79	Right-handed alpha
Helix 6	6	A	93	99	Right-handed alpha
Helix 7	7	A	117	126	Right-handed alpha
Helix 8	8	A	142	148	Right-handed alpha
Helix 9	9	A	157	173	Right-handed alpha
Helix 10	10	A	188	192	Right-handed 310
Helix 11	11	A	196	199	Right-handed 310
Helix 12	12	A	200	205	Right-handed alpha
Helix 13	13	A	218	229	Right-handed alpha
Helix 14	14	A	261	274	Right-handed alpha
Helix 15	15	A	289	293	Right-handed 310
Helix 16	16	A	325	337	Right-handed alpha
Helix 17	17	B	19	32	Right-handed alpha
Helix 18	18	B	32	37	Right-handed alpha
Helix 19	19	B	54	58	Right-handed 310
Helix 20	20	B	62	66	Right-handed 310
Helix 21	21	B	74	79	Right-handed alpha
Helix 22	22	B	92	99	Right-handed alpha
Helix 23	23	B	117	126	Right-handed alpha
Helix 24	24	B	142	148	Right-handed alpha
Helix 25	25	B	157	173	Right-handed alpha
Helix 26	26	B	188	192	Right-handed 310
Helix 27	27	B	196	199	Right-handed 310
Helix 28	28	B	200	205	Right-handed alpha
Helix 29	29	B	219	229	Right-handed alpha
Helix 30	30	B	261	274	Right-handed alpha
Helix 31	31	B	289	293	Right-handed 310
Helix 32	32	B	325	338	Right-handed alpha
Helix 33	33	C	19	31	Right-handed alpha
Helix 34	34	C	32	37	Right-handed alpha
Helix 35	35	C	54	59	Right-handed alpha
Helix 36	36	C	62	66	Right-handed 310
Helix 37	37	C	74	79	Right-handed alpha
Helix 38	38	C	91	100	Right-handed alpha
Helix 39	39	C	117	126	Right-handed alpha
Helix 40	40	C	142	148	Right-handed alpha
Helix 41	41	C	157	173	Right-handed alpha
Helix 42	42	C	188	192	Right-handed 310
Helix 43	43	C	196	199	Right-handed 310
Helix 44	44	C	200	205	Right-handed alpha
Helix 45	45	C	219	229	Right-handed alpha
Helix 46	46	C	261	274	Right-handed alpha
Helix 47	47	C	289	293	Right-handed 310
Helix 48	48	C	325	338	Right-handed alpha
Helix 49	49	D	19	31	Right-handed alpha
Helix 50	50	D	32	37	Right-handed alpha
Helix 51	51	D	54	58	Right-handed 310
Helix 52	52	D	62	66	Right-handed 310
Helix 53	53	D	74	79	Right-handed alpha
Helix 54	54	D	91	100	Right-handed alpha
Helix 55	55	D	117	126	Right-handed alpha
Helix 56	56	D	142	148	Right-handed alpha
Helix 57	57	D	157	173	Right-handed alpha
Helix 58	58	D	188	192	Right-handed 310
Helix 59	59	D	196	199	Right-handed 310
Helix 60	60	D	200	205	Right-handed alpha
Helix 61	61	D	219	229	Right-handed alpha
Helix 62	62	D	261	274	Right-handed alpha
Helix 63	63	D	289	294	Right-handed alpha
Helix 64	64	D	325	338	Right-handed alpha

There are 8 sheets in PDB entry 2I3A. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 6 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	71	72	first strand
Strand 2	A	40	47	parallel
Strand 3	A	10	15	parallel
Strand 4	A	83	86	parallel
Strand 5	A	105	108	parallel
Strand 6	A	152	154	parallel

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There are 7 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	209	210	first strand
Strand 2	A	236	243	anti-parallel
Strand 3	A	179	186	parallel
Strand 4	A	250	257	anti-parallel
Strand 5	A	311	318	anti-parallel
Strand 6	A	299	306	anti-parallel
Strand 7	A	279	281	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	71	72	first strand
Strand 2	B	40	47	parallel
Strand 3	B	10	15	parallel
Strand 4	B	83	86	parallel
Strand 5	B	105	108	parallel
Strand 6	B	152	154	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	B	209	210	first strand
Strand 2	B	236	243	anti-parallel
Strand 3	B	179	186	parallel
Strand 4	B	250	257	anti-parallel
Strand 5	B	311	318	anti-parallel
Strand 6	B	299	306	anti-parallel
Strand 7	B	279	281	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	C	40	46	first strand
Strand 2	C	10	15	parallel
Strand 3	C	83	86	parallel
Strand 4	C	105	108	parallel
Strand 5	C	152	154	parallel

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There are 7 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	209	210	first strand
Strand 2	C	236	243	anti-parallel
Strand 3	C	179	186	parallel
Strand 4	C	250	257	anti-parallel
Strand 5	C	311	318	anti-parallel
Strand 6	C	299	306	anti-parallel
Strand 7	C	279	281	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	40	46	first strand
Strand 2	D	10	15	parallel
Strand 3	D	83	86	parallel
Strand 4	D	105	108	parallel
Strand 5	D	152	154	parallel

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There are 7 strands in H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	209	210	first strand
Strand 2	D	236	243	anti-parallel
Strand 3	D	179	186	parallel
Strand 4	D	250	257	anti-parallel
Strand 5	D	311	318	anti-parallel
Strand 6	D	299	306	anti-parallel
Strand 7	D	279	281	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: 2I3A

Analysis of interatomic Contacts of Structural Units in PDB entry:
2I3A