Analysis of interatomic Contacts of Structural Units in PDB entry:
4N1E

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 4N1E entry

There are 12 chains in PDB entry 4N1E (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASP 1	LYS 103
B	ASP 1	LYS 107
C	ASP 1	ILE 106
D	ASP 1	ALA 109
E	ASP 1	ILE 106
F	ASP 1	GLU 105
G	ASP 1	ALA 109
H	ASP 1	LYS 107
I	LYS 1	CYS 127
J	LYS 1	ARG 128
K	LYS 1	CYS 127
L	LYS 1	CYS 127

There are 39 helices in PDB entry 4N1E. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	B	79	83	Right-handed 310
Helix 2	2	C	79	83	Right-handed 310
Helix 3	3	D	79	83	Right-handed 310
Helix 4	4	E	79	83	Right-handed 310
Helix 5	5	F	79	83	Right-handed 310
Helix 6	6	G	79	83	Right-handed 310
Helix 7	7	H	79	83	Right-handed 310
Helix 8	8	I	4	15	Right-handed alpha
Helix 9	9	I	19	23	Right-handed 310
Helix 10	10	I	24	37	Right-handed alpha
Helix 11	11	I	79	83	Right-handed 310
Helix 12	12	I	88	99	Right-handed alpha
Helix 13	13	I	103	107	Right-handed 310
Helix 14	14	I	108	115	Right-handed alpha
Helix 15	15	I	119	125	Right-handed 310
Helix 16	16	J	4	15	Right-handed alpha
Helix 17	17	J	19	23	Right-handed 310
Helix 18	18	J	24	37	Right-handed alpha
Helix 19	19	J	79	85	Right-handed 310
Helix 20	20	J	88	99	Right-handed alpha
Helix 21	21	J	103	107	Right-handed 310
Helix 22	22	J	108	115	Right-handed alpha
Helix 23	23	J	119	125	Right-handed 310
Helix 24	24	K	4	15	Right-handed alpha
Helix 25	25	K	19	23	Right-handed 310
Helix 26	26	K	24	37	Right-handed alpha
Helix 27	27	K	79	84	Right-handed 310
Helix 28	28	K	88	99	Right-handed alpha
Helix 29	29	K	103	107	Right-handed 310
Helix 30	30	K	108	115	Right-handed alpha
Helix 31	31	K	119	125	Right-handed 310
Helix 32	32	L	4	15	Right-handed alpha
Helix 33	33	L	19	24	Right-handed 310
Helix 34	34	L	25	37	Right-handed alpha
Helix 35	35	L	79	84	Right-handed 310
Helix 36	36	L	88	99	Right-handed alpha
Helix 37	37	L	103	107	Right-handed 310
Helix 38	38	L	108	115	Right-handed alpha
Helix 39	39	L	119	125	Right-handed 310

There are 23 sheets in PDB entry 4N1E. 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, Q, R, S, T, U, V, W,

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	4	7	first strand
Strand 2	A	21	25	anti-parallel
Strand 3	A	70	74	anti-parallel
Strand 4	A	63	67	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	53	54	first strand
Strand 2	A	45	49	anti-parallel
Strand 3	A	33	38	anti-parallel
Strand 4	A	85	90	anti-parallel
Strand 5	A	97	98	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	B	4	7	first strand
Strand 2	B	19	25	anti-parallel
Strand 3	B	70	75	anti-parallel
Strand 4	B	62	65	anti-parallel

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There are 12 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	53	54	first strand
Strand 2	B	45	49	anti-parallel
Strand 3	B	33	38	anti-parallel
Strand 4	B	84	90	anti-parallel
Strand 5	B	102	106	anti-parallel
Strand 6	B	10	13	parallel
Strand 7	D	10	13	anti-parallel
Strand 8	D	102	106	parallel
Strand 9	D	84	90	anti-parallel
Strand 10	D	33	38	anti-parallel
Strand 11	D	45	49	anti-parallel
Strand 12	D	53	54	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	B	97	98	first strand
Strand 2	B	84	90	anti-parallel
Strand 3	B	102	106	anti-parallel
Strand 4	B	10	13	parallel
Strand 5	D	10	13	anti-parallel
Strand 6	D	102	106	parallel
Strand 7	D	84	90	anti-parallel
Strand 8	D	97	98	anti-parallel

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There are 4 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	4	7	first strand
Strand 2	C	19	25	anti-parallel
Strand 3	C	70	75	anti-parallel
Strand 4	C	62	67	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	C	10	12	first strand
Strand 2	C	102	105	parallel
Strand 3	C	84	90	anti-parallel
Strand 4	C	33	38	anti-parallel
Strand 5	C	45	49	anti-parallel
Strand 6	C	53	54	anti-parallel

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There are 4 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	10	12	first strand
Strand 2	C	102	105	parallel
Strand 3	C	84	90	anti-parallel
Strand 4	C	97	98	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	D	4	7	first strand
Strand 2	D	19	25	anti-parallel
Strand 3	D	70	75	anti-parallel
Strand 4	D	62	66	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	4	7	first strand
Strand 2	E	19	25	anti-parallel
Strand 3	E	70	75	anti-parallel
Strand 4	E	62	65	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	10	12	first strand
Strand 2	E	102	105	parallel
Strand 3	E	84	90	anti-parallel
Strand 4	E	33	38	anti-parallel
Strand 5	E	45	49	anti-parallel
Strand 6	E	53	54	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	E	10	12	first strand
Strand 2	E	102	105	parallel
Strand 3	E	84	90	anti-parallel
Strand 4	E	97	98	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	F	4	7	first strand
Strand 2	F	19	25	anti-parallel
Strand 3	F	70	75	anti-parallel
Strand 4	F	62	67	anti-parallel

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There are 12 strands in N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	53	54	first strand
Strand 2	F	45	49	anti-parallel
Strand 3	F	33	38	anti-parallel
Strand 4	F	84	90	anti-parallel
Strand 5	F	102	105	anti-parallel
Strand 6	F	10	12	parallel
Strand 7	H	10	13	anti-parallel
Strand 8	H	102	106	parallel
Strand 9	H	84	90	anti-parallel
Strand 10	H	33	38	anti-parallel
Strand 11	H	45	49	anti-parallel
Strand 12	H	53	54	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	97	98	first strand
Strand 2	F	84	90	anti-parallel
Strand 3	F	102	105	anti-parallel
Strand 4	F	10	12	parallel
Strand 5	H	10	13	anti-parallel
Strand 6	H	102	106	parallel
Strand 7	H	84	90	anti-parallel
Strand 8	H	97	98	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	4	7	first strand
Strand 2	G	19	25	anti-parallel
Strand 3	G	70	75	anti-parallel
Strand 4	G	62	65	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	10	13	first strand
Strand 2	G	102	106	parallel
Strand 3	G	85	90	anti-parallel
Strand 4	G	33	38	anti-parallel
Strand 5	G	45	49	anti-parallel
Strand 6	G	53	54	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	10	13	first strand
Strand 2	G	102	106	parallel
Strand 3	G	85	90	anti-parallel
Strand 4	G	97	98	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	4	7	first strand
Strand 2	H	19	25	anti-parallel
Strand 3	H	70	75	anti-parallel
Strand 4	H	62	66	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	43	45	first strand
Strand 2	I	51	53	anti-parallel
Strand 3	I	58	59	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	43	45	first strand
Strand 2	J	51	53	anti-parallel
Strand 3	J	58	59	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	43	45	first strand
Strand 2	K	51	53	anti-parallel
Strand 3	K	58	59	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	43	45	first strand
Strand 2	L	51	53	anti-parallel
Strand 3	L	58	59	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: 4N1E

Analysis of interatomic Contacts of Structural Units in PDB entry:
4N1E