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

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 2IFC entry

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

Chain ID	Initial residue	Terminal residue
A	GLU 4	ARG 383
B	GLU 4	ARG 383
C	THR 3	LYS 384
D	GLU 5	ILE 380

There are 86 helices in PDB entry 2IFC. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	7	11	Right-handed 310
Helix 2	2	A	37	43	Right-handed alpha
Helix 3	3	A	46	57	Right-handed alpha
Helix 4	4	A	61	74	Right-handed alpha
Helix 5	5	A	75	77	Right-handed 310
Helix 6	6	A	79	88	Right-handed alpha
Helix 7	7	A	94	110	Right-handed alpha
Helix 8	8	A	119	143	Right-handed alpha
Helix 9	9	A	155	166	Right-handed alpha
Helix 10	10	A	170	184	Right-handed alpha
Helix 11	11	A	190	201	Right-handed alpha
Helix 12	12	A	205	218	Right-handed alpha
Helix 13	13	A	224	237	Right-handed alpha
Helix 14	14	A	238	240	Right-handed 310
Helix 15	15	A	241	250	Right-handed alpha
Helix 16	16	A	269	285	Right-handed alpha
Helix 17	17	A	286	308	Right-handed alpha
Helix 18	18	A	309	311	Right-handed 310
Helix 19	19	A	319	328	Right-handed alpha
Helix 20	20	A	331	333	Right-handed 310
Helix 21	21	A	334	360	Right-handed alpha
Helix 22	22	A	379	383	Right-handed 310
Helix 23	23	B	7	11	Right-handed 310
Helix 24	24	B	37	43	Right-handed alpha
Helix 25	25	B	46	57	Right-handed alpha
Helix 26	26	B	61	75	Right-handed alpha
Helix 27	27	B	79	88	Right-handed alpha
Helix 28	28	B	94	110	Right-handed alpha
Helix 29	29	B	119	143	Right-handed alpha
Helix 30	30	B	155	166	Right-handed alpha
Helix 31	31	B	170	185	Right-handed alpha
Helix 32	32	B	190	201	Right-handed alpha
Helix 33	33	B	205	218	Right-handed alpha
Helix 34	34	B	224	237	Right-handed alpha
Helix 35	35	B	238	240	Right-handed 310
Helix 36	36	B	241	250	Right-handed alpha
Helix 37	37	B	269	284	Right-handed alpha
Helix 38	38	B	286	308	Right-handed alpha
Helix 39	39	B	309	311	Right-handed 310
Helix 40	40	B	315	318	Right-handed 310
Helix 41	41	B	319	328	Right-handed alpha
Helix 42	42	B	331	333	Right-handed 310
Helix 43	43	B	334	359	Right-handed alpha
Helix 44	44	B	379	383	Right-handed 310
Helix 45	45	C	7	11	Right-handed 310
Helix 46	46	C	37	44	Right-handed alpha
Helix 47	47	C	46	57	Right-handed alpha
Helix 48	48	C	61	75	Right-handed alpha
Helix 49	49	C	79	88	Right-handed alpha
Helix 50	50	C	94	110	Right-handed alpha
Helix 51	51	C	119	144	Right-handed alpha
Helix 52	52	C	155	166	Right-handed alpha
Helix 53	53	C	170	184	Right-handed alpha
Helix 54	54	C	190	201	Right-handed alpha
Helix 55	55	C	205	218	Right-handed alpha
Helix 56	56	C	224	237	Right-handed alpha
Helix 57	57	C	238	240	Right-handed 310
Helix 58	58	C	241	250	Right-handed alpha
Helix 59	59	C	269	284	Right-handed alpha
Helix 60	60	C	286	308	Right-handed alpha
Helix 61	61	C	309	311	Right-handed 310
Helix 62	62	C	315	318	Right-handed 310
Helix 63	63	C	319	328	Right-handed alpha
Helix 64	64	C	331	333	Right-handed 310
Helix 65	65	C	334	359	Right-handed alpha
Helix 66	66	C	379	383	Right-handed 310
Helix 67	67	D	7	11	Right-handed 310
Helix 68	68	D	37	43	Right-handed alpha
Helix 69	69	D	46	57	Right-handed alpha
Helix 70	70	D	61	75	Right-handed alpha
Helix 71	71	D	79	88	Right-handed alpha
Helix 72	72	D	94	110	Right-handed alpha
Helix 73	73	D	119	143	Right-handed alpha
Helix 74	74	D	155	166	Right-handed alpha
Helix 75	75	D	170	184	Right-handed alpha
Helix 76	76	D	190	201	Right-handed alpha
Helix 77	77	D	205	218	Right-handed alpha
Helix 78	78	D	224	237	Right-handed alpha
Helix 79	79	D	238	240	Right-handed 310
Helix 80	80	D	241	250	Right-handed alpha
Helix 81	81	D	269	284	Right-handed alpha
Helix 82	82	D	286	308	Right-handed alpha
Helix 83	83	D	309	311	Right-handed 310
Helix 84	84	D	319	328	Right-handed alpha
Helix 85	85	D	331	333	Right-handed 310
Helix 86	86	D	334	359	Right-handed alpha

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

There are 2 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	14	18	first strand
Strand 2	C	366	369	parallel

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There are 3 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	21	24	first strand
Strand 2	A	29	32	anti-parallel
Strand 3	A	35	36	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	366	369	first strand
Strand 2	C	14	18	parallel

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There are 2 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	14	18	first strand
Strand 2	D	366	369	parallel

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There are 3 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	21	24	first strand
Strand 2	B	29	32	anti-parallel
Strand 3	B	35	36	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	366	369	first strand
Strand 2	D	14	18	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	21	24	first strand
Strand 2	C	29	32	anti-parallel
Strand 3	C	35	36	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	D	21	24	first strand
Strand 2	D	29	32	anti-parallel
Strand 3	D	35	36	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: 2IFC

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