Analysis of interatomic Contacts of Structural Units in PDB entry:
3IFA

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 3IFA entry

There are 4 chains in PDB entry 3IFA (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	THR 8	ALA 336
B	THR 8	ALA 336
C	ASP 9	GLN 335
D	ASP 9	ALA 336

There are 56 helices in PDB entry 3IFA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	12	24	Right-handed alpha
Helix 2	2	A	28	49	Right-handed alpha
Helix 3	3	A	52	57	Right-handed alpha
Helix 4	4	A	68	88	Right-handed alpha
Helix 5	5	A	106	108	Right-handed 310
Helix 6	6	A	122	129	Right-handed 310
Helix 7	7	A	148	153	Right-handed 310
Helix 8	8	A	155	159	Right-handed 310
Helix 9	9	A	212	219	Right-handed 310
Helix 10	10	A	220	232	Right-handed alpha
Helix 11	11	A	247	259	Right-handed alpha
Helix 12	12	A	280	291	Right-handed alpha
Helix 13	13	A	301	305	Right-handed 310
Helix 14	14	A	320	336	Right-handed alpha
Helix 15	15	B	12	24	Right-handed alpha
Helix 16	16	B	28	49	Right-handed alpha
Helix 17	17	B	52	57	Right-handed alpha
Helix 18	18	B	69	87	Right-handed alpha
Helix 19	19	B	106	108	Right-handed 310
Helix 20	20	B	122	129	Right-handed 310
Helix 21	21	B	148	153	Right-handed 310
Helix 22	22	B	155	157	Right-handed 310
Helix 23	23	B	212	219	Right-handed 310
Helix 24	24	B	220	232	Right-handed alpha
Helix 25	25	B	247	259	Right-handed alpha
Helix 26	26	B	280	291	Right-handed alpha
Helix 27	27	B	301	305	Right-handed 310
Helix 28	28	B	320	334	Right-handed alpha
Helix 29	29	C	12	24	Right-handed alpha
Helix 30	30	C	28	49	Right-handed alpha
Helix 31	31	C	52	57	Right-handed alpha
Helix 32	32	C	69	87	Right-handed alpha
Helix 33	33	C	106	108	Right-handed 310
Helix 34	34	C	122	129	Right-handed 310
Helix 35	35	C	148	153	Right-handed 310
Helix 36	36	C	155	157	Right-handed 310
Helix 37	37	C	212	219	Right-handed 310
Helix 38	38	C	220	232	Right-handed alpha
Helix 39	39	C	247	259	Right-handed alpha
Helix 40	40	C	280	291	Right-handed alpha
Helix 41	41	C	301	305	Right-handed 310
Helix 42	42	C	320	333	Right-handed alpha
Helix 43	43	D	12	24	Right-handed alpha
Helix 44	44	D	28	49	Right-handed alpha
Helix 45	45	D	52	57	Right-handed alpha
Helix 46	46	D	70	87	Right-handed alpha
Helix 47	47	D	106	108	Right-handed 310
Helix 48	48	D	122	129	Right-handed 310
Helix 49	49	D	148	153	Right-handed 310
Helix 50	50	D	155	159	Right-handed 310
Helix 51	51	D	212	219	Right-handed 310
Helix 52	52	D	220	232	Right-handed alpha
Helix 53	53	D	247	259	Right-handed alpha
Helix 54	54	D	280	291	Right-handed alpha
Helix 55	55	D	301	305	Right-handed 310
Helix 56	56	D	320	334	Right-handed alpha

There are 8 sheets in PDB entry 3IFA. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 8 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	103	104	first strand
Strand 2	A	91	96	anti-parallel
Strand 3	A	110	121	parallel
Strand 4	A	132	140	anti-parallel
Strand 5	A	161	167	anti-parallel
Strand 6	A	171	176	anti-parallel
Strand 7	A	181	187	anti-parallel
Strand 8	A	192	200	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	241	242	first strand
Strand 2	A	208	210	parallel
Strand 3	A	261	264	parallel
Strand 4	A	316	319	anti-parallel
Strand 5	A	294	296	anti-parallel

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There are 8 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	103	104	first strand
Strand 2	B	91	96	anti-parallel
Strand 3	B	110	121	parallel
Strand 4	B	132	140	anti-parallel
Strand 5	B	159	167	anti-parallel
Strand 6	B	171	176	anti-parallel
Strand 7	B	181	187	anti-parallel
Strand 8	B	192	200	anti-parallel

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There are 5 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	241	242	first strand
Strand 2	B	208	210	parallel
Strand 3	B	261	264	parallel
Strand 4	B	316	319	anti-parallel
Strand 5	B	294	296	anti-parallel

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There are 8 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	103	104	first strand
Strand 2	C	91	96	anti-parallel
Strand 3	C	110	121	parallel
Strand 4	C	132	140	anti-parallel
Strand 5	C	159	167	anti-parallel
Strand 6	C	171	176	anti-parallel
Strand 7	C	182	187	anti-parallel
Strand 8	C	192	197	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	C	241	242	first strand
Strand 2	C	208	210	parallel
Strand 3	C	261	264	parallel
Strand 4	C	316	319	anti-parallel
Strand 5	C	294	296	anti-parallel

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There are 8 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	103	104	first strand
Strand 2	D	91	96	anti-parallel
Strand 3	D	110	121	parallel
Strand 4	D	132	140	anti-parallel
Strand 5	D	161	167	anti-parallel
Strand 6	D	171	176	anti-parallel
Strand 7	D	182	187	anti-parallel
Strand 8	D	192	197	anti-parallel

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There are 5 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	241	242	first strand
Strand 2	D	208	210	parallel
Strand 3	D	261	264	parallel
Strand 4	D	316	319	anti-parallel
Strand 5	D	294	296	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: 3IFA

Analysis of interatomic Contacts of Structural Units in PDB entry:
3IFA