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

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 1KFA entry

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

Chain ID	Initial residue	Terminal residue
L	ASP 1	ALA 217
H	VAL 2	ASP 227
M	ASP 1	SER 213
I	MET 3	PRO 225

There are 15 helices in PDB entry 1KFA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	L	84	88	Right-handed 310
Helix 2	2	L	126	132	Right-handed alpha
Helix 3	3	L	188	192	Right-handed alpha
Helix 4	4	H	28	32	Right-handed 310
Helix 5	5	H	87	91	Right-handed 310
Helix 6	6	H	169	171	Right-handed 310
Helix 7	7	H	199	201	Right-handed 310
Helix 8	8	M	84	88	Right-handed 310
Helix 9	9	M	126	132	Right-handed alpha
Helix 10	10	M	188	193	Right-handed alpha
Helix 11	11	I	28	32	Right-handed 310
Helix 12	12	I	61	65	Right-handed 310
Helix 13	13	I	87	91	Right-handed 310
Helix 14	14	I	169	171	Right-handed 310
Helix 15	15	I	197	201	Right-handed 310

There are 16 sheets in PDB entry 1KFA. 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,

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	L	4	7	first strand
Strand 2	L	19	25	anti-parallel
Strand 3	L	75	80	anti-parallel
Strand 4	L	67	72	anti-parallel

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There are 8 strands in B sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	12	14	first strand
Strand 2	L	107	112	parallel
Strand 3	L	89	95	anti-parallel
Strand 4	L	102	103	anti-parallel
Strand 5	L	89	95	anti-parallel
Strand 6	L	38	43	anti-parallel
Strand 7	L	50	54	anti-parallel
Strand 8	L	58	59	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	L	119	123	first strand
Strand 2	L	134	144	anti-parallel
Strand 3	L	178	187	anti-parallel
Strand 4	L	164	168	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	158	160	first strand
Strand 2	L	150	155	anti-parallel
Strand 3	L	196	202	anti-parallel
Strand 4	L	210	215	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	H	3	7	first strand
Strand 2	H	18	25	anti-parallel
Strand 3	H	78	83	anti-parallel
Strand 4	H	68	73	anti-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	H	11	12	first strand
Strand 2	H	115	119	parallel
Strand 3	H	92	99	anti-parallel
Strand 4	H	33	39	anti-parallel
Strand 5	H	45	51	anti-parallel
Strand 6	H	58	59	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	133	137	first strand
Strand 2	H	148	158	anti-parallel
Strand 3	H	188	197	anti-parallel
Strand 4	H	182	183	anti-parallel
Strand 5	H	188	197	anti-parallel
Strand 6	H	176	178	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	H	164	167	first strand
Strand 2	H	207	212	anti-parallel
Strand 3	H	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	M	4	7	first strand
Strand 2	M	19	25	anti-parallel
Strand 3	M	75	80	anti-parallel
Strand 4	M	67	72	anti-parallel

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There are 8 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	10	14	first strand
Strand 2	M	107	112	parallel
Strand 3	M	89	95	anti-parallel
Strand 4	M	102	103	anti-parallel
Strand 5	M	89	95	anti-parallel
Strand 6	M	38	43	anti-parallel
Strand 7	M	50	54	anti-parallel
Strand 8	M	58	59	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	M	121	123	first strand
Strand 2	M	134	140	anti-parallel
Strand 3	M	180	187	anti-parallel
Strand 4	M	164	168	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	158	160	first strand
Strand 2	M	150	155	anti-parallel
Strand 3	M	197	202	anti-parallel
Strand 4	M	210	212	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	I	4	7	first strand
Strand 2	I	18	24	anti-parallel
Strand 3	I	78	83	anti-parallel
Strand 4	I	68	73	anti-parallel

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There are 8 strands in N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	11	12	first strand
Strand 2	I	115	119	parallel
Strand 3	I	92	99	anti-parallel
Strand 4	I	108	111	anti-parallel
Strand 5	I	92	99	anti-parallel
Strand 6	I	34	39	anti-parallel
Strand 7	I	45	51	anti-parallel
Strand 8	I	58	59	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	133	137	first strand
Strand 2	I	149	158	anti-parallel
Strand 3	I	188	196	anti-parallel
Strand 4	I	182	183	anti-parallel
Strand 5	I	188	196	anti-parallel
Strand 6	I	176	178	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	I	164	167	first strand
Strand 2	I	207	212	anti-parallel
Strand 3	I	217	222	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: 1KFA

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