Analysis of interatomic Contacts of Structural Units in PDB entry:
4N2O

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 4N2O entry

There are 7 chains in PDB entry 4N2O (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLY 2	HIS 196
B	SER 4	HIS 196
C	ALA 8	HIS 197
D	SER 4	LEU 194
E	VAL 6	GLU 195
F	THR 7	HIS 199
G	SER 5	PRO 147

There are 41 helices in PDB entry 4N2O. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	2	12	Right-handed alpha
Helix 2	2	A	16	24	Right-handed alpha
Helix 3	3	A	83	86	Right-handed 310
Helix 4	4	A	94	97	Right-handed 310
Helix 5	5	A	112	117	Right-handed alpha
Helix 6	6	A	174	184	Right-handed alpha
Helix 7	7	B	16	24	Right-handed alpha
Helix 8	8	B	83	86	Right-handed 310
Helix 9	9	B	94	97	Right-handed 310
Helix 10	10	B	112	117	Right-handed alpha
Helix 11	11	B	174	184	Right-handed alpha
Helix 12	12	C	16	24	Right-handed alpha
Helix 13	13	C	83	86	Right-handed 310
Helix 14	14	C	94	97	Right-handed 310
Helix 15	15	C	112	117	Right-handed alpha
Helix 16	16	C	174	184	Right-handed alpha
Helix 17	17	D	16	24	Right-handed alpha
Helix 18	18	D	83	86	Right-handed 310
Helix 19	19	D	94	97	Right-handed 310
Helix 20	20	D	112	117	Right-handed alpha
Helix 21	21	D	174	184	Right-handed alpha
Helix 22	22	E	16	24	Right-handed alpha
Helix 23	23	E	83	86	Right-handed 310
Helix 24	24	E	94	97	Right-handed 310
Helix 25	25	E	112	117	Right-handed alpha
Helix 26	26	E	174	184	Right-handed alpha
Helix 27	27	F	16	24	Right-handed alpha
Helix 28	28	F	83	86	Right-handed 310
Helix 29	29	F	94	97	Right-handed 310
Helix 30	30	F	112	117	Right-handed alpha
Helix 31	31	F	174	184	Right-handed alpha
Helix 32	32	G	16	24	Right-handed alpha
Helix 33	33	G	83	86	Right-handed 310
Helix 34	34	G	94	97	Right-handed 310
Helix 35	35	G	112	117	Right-handed alpha
Helix 36	36	G	174	184	Right-handed alpha
Helix 37	37	H	16	24	Right-handed alpha
Helix 38	38	H	83	86	Right-handed 310
Helix 39	39	H	94	97	Right-handed 310
Helix 40	40	H	112	117	Right-handed alpha
Helix 41	41	H	174	184	Right-handed alpha

There are 40 sheets in PDB entry 4N2O. 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, X, Y, Z, AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN,

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	36	39	first strand
Strand 2	A	49	57	anti-parallel
Strand 3	A	137	145	anti-parallel
Strand 4	A	77	78	anti-parallel

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There are 4 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	36	39	first strand
Strand 2	A	49	57	anti-parallel
Strand 3	A	137	145	anti-parallel
Strand 4	A	91	92	anti-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	A	41	44	first strand
Strand 2	A	188	192	parallel
Strand 3	A	155	161	anti-parallel
Strand 4	A	65	73	anti-parallel
Strand 5	A	120	128	anti-parallel
Strand 6	A	101	107	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	A	41	44	first strand
Strand 2	A	188	192	parallel
Strand 3	A	155	161	anti-parallel
Strand 4	A	65	73	anti-parallel
Strand 5	A	167	169	anti-parallel

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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	80	82	first strand
Strand 2	A	87	88	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	B	36	39	first strand
Strand 2	B	49	57	anti-parallel
Strand 3	B	137	145	anti-parallel
Strand 4	B	77	78	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	36	39	first strand
Strand 2	B	49	57	anti-parallel
Strand 3	B	137	145	anti-parallel
Strand 4	B	91	92	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	41	44	first strand
Strand 2	B	188	192	parallel
Strand 3	B	155	161	anti-parallel
Strand 4	B	65	73	anti-parallel
Strand 5	B	120	128	anti-parallel
Strand 6	B	101	107	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	41	44	first strand
Strand 2	B	188	192	parallel
Strand 3	B	155	161	anti-parallel
Strand 4	B	65	73	anti-parallel
Strand 5	B	167	169	anti-parallel

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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	80	82	first strand
Strand 2	B	87	88	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	C	36	39	first strand
Strand 2	C	49	57	anti-parallel
Strand 3	C	137	145	anti-parallel
Strand 4	C	77	78	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	C	36	39	first strand
Strand 2	C	49	57	anti-parallel
Strand 3	C	137	145	anti-parallel
Strand 4	C	91	92	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	41	44	first strand
Strand 2	C	188	192	parallel
Strand 3	C	155	161	anti-parallel
Strand 4	C	65	73	anti-parallel
Strand 5	C	120	128	anti-parallel
Strand 6	C	101	107	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	41	44	first strand
Strand 2	C	188	192	parallel
Strand 3	C	155	161	anti-parallel
Strand 4	C	65	73	anti-parallel
Strand 5	C	167	169	anti-parallel

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There are 2 strands in O sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	80	82	first strand
Strand 2	C	87	88	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	D	36	39	first strand
Strand 2	D	49	57	anti-parallel
Strand 3	D	137	145	anti-parallel
Strand 4	D	77	78	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	36	39	first strand
Strand 2	D	49	57	anti-parallel
Strand 3	D	137	145	anti-parallel
Strand 4	D	91	92	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	41	44	first strand
Strand 2	D	188	192	parallel
Strand 3	D	155	161	anti-parallel
Strand 4	D	65	73	anti-parallel
Strand 5	D	120	128	anti-parallel
Strand 6	D	101	107	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	41	44	first strand
Strand 2	D	188	192	parallel
Strand 3	D	155	161	anti-parallel
Strand 4	D	65	73	anti-parallel
Strand 5	D	167	169	anti-parallel

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There are 2 strands in T sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	80	82	first strand
Strand 2	D	87	88	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	36	39	first strand
Strand 2	E	49	57	anti-parallel
Strand 3	E	137	145	anti-parallel
Strand 4	E	77	78	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	36	39	first strand
Strand 2	E	49	57	anti-parallel
Strand 3	E	137	145	anti-parallel
Strand 4	E	91	92	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	41	44	first strand
Strand 2	E	188	192	parallel
Strand 3	E	155	161	anti-parallel
Strand 4	E	65	73	anti-parallel
Strand 5	E	120	128	anti-parallel
Strand 6	E	101	107	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	41	44	first strand
Strand 2	E	188	192	parallel
Strand 3	E	155	161	anti-parallel
Strand 4	E	65	73	anti-parallel
Strand 5	E	167	169	anti-parallel

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There are 2 strands in Y sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	80	82	first strand
Strand 2	E	87	88	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	36	39	first strand
Strand 2	F	49	57	anti-parallel
Strand 3	F	137	145	anti-parallel
Strand 4	F	77	78	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	36	39	first strand
Strand 2	F	49	57	anti-parallel
Strand 3	F	137	145	anti-parallel
Strand 4	F	91	92	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	41	44	first strand
Strand 2	F	188	192	parallel
Strand 3	F	155	161	anti-parallel
Strand 4	F	65	73	anti-parallel
Strand 5	F	120	128	anti-parallel
Strand 6	F	101	107	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	41	44	first strand
Strand 2	F	188	192	parallel
Strand 3	F	155	161	anti-parallel
Strand 4	F	65	73	anti-parallel
Strand 5	F	167	169	anti-parallel

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There are 2 strands in AD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	80	82	first strand
Strand 2	F	87	88	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	36	39	first strand
Strand 2	G	49	57	anti-parallel
Strand 3	G	137	145	anti-parallel
Strand 4	G	77	78	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	36	39	first strand
Strand 2	G	49	57	anti-parallel
Strand 3	G	137	145	anti-parallel
Strand 4	G	91	92	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	41	44	first strand
Strand 2	G	188	192	parallel
Strand 3	G	155	161	anti-parallel
Strand 4	G	65	73	anti-parallel
Strand 5	G	120	128	anti-parallel
Strand 6	G	101	107	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	41	44	first strand
Strand 2	G	188	192	parallel
Strand 3	G	155	161	anti-parallel
Strand 4	G	65	73	anti-parallel
Strand 5	G	167	169	anti-parallel

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There are 2 strands in AI sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	80	82	first strand
Strand 2	G	87	88	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	36	39	first strand
Strand 2	H	49	57	anti-parallel
Strand 3	H	137	145	anti-parallel
Strand 4	H	77	78	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	36	39	first strand
Strand 2	H	49	57	anti-parallel
Strand 3	H	137	145	anti-parallel
Strand 4	H	91	92	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	41	44	first strand
Strand 2	H	188	192	parallel
Strand 3	H	155	161	anti-parallel
Strand 4	H	65	73	anti-parallel
Strand 5	H	120	128	anti-parallel
Strand 6	H	101	107	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	41	44	first strand
Strand 2	H	188	192	parallel
Strand 3	H	155	161	anti-parallel
Strand 4	H	65	73	anti-parallel
Strand 5	H	167	169	anti-parallel

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There are 2 strands in AN sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	80	82	first strand
Strand 2	H	87	88	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: 4N2O

Analysis of interatomic Contacts of Structural Units in PDB entry:
4N2O