Analysis of interatomic Contacts of Structural Units in PDB entry:
7NAS

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 7NAS entry

There are 19 chains in PDB entry 7NAS (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	A 1	G 515
A	G 517	C 526
A	C 528	G 1515
A	G 1517	G 1517
A	C 1520	U 1540
D	ALA 2	LYS 206
E	GLU 10	LEU 165
F	MET 1	LYS 106
H	SER 2	ALA 130
K	ARG 13	VAL 129
L	ALA 2	LYS 88
L	LEU 90	ALA 124
O	SER 2	ARG 89
P	MET 1	ALA 82
Q	LYS 4	VAL 83
R	PHE 10	HIS 74
T	ALA 2	ALA 87
U	PRO 2	ARG 67
X	MET 1	ALA 151

There are 52 helices in PDB entry 7NAS. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	D	8	16	Right-handed alpha
Helix 2	AA2	D	27	32	Right-handed alpha
Helix 3	AA3	D	39	43	Right-handed 310
Helix 4	AA4	D	49	66	Right-handed alpha
Helix 5	AA5	D	68	80	Right-handed alpha
Helix 6	AA6	D	85	95	Right-handed alpha
Helix 7	AA7	D	97	105	Right-handed alpha
Helix 8	AA8	D	110	120	Right-handed alpha
Helix 9	AA9	D	146	151	Right-handed alpha
Helix 10	AB1	D	152	163	Right-handed alpha
Helix 11	AB2	D	196	205	Right-handed alpha
Helix 12	AB3	E	55	67	Right-handed alpha
Helix 13	AB4	E	108	119	Right-handed alpha
Helix 14	AB5	E	132	139	Right-handed alpha
Helix 15	AB6	E	140	146	Right-handed alpha
Helix 16	AB7	E	151	157	Right-handed alpha
Helix 17	AB8	E	160	165	Right-handed alpha
Helix 18	AB9	F	12	17	Right-handed 310
Helix 19	AC1	F	18	32	Right-handed alpha
Helix 20	AC2	F	67	79	Right-handed alpha
Helix 21	AC3	F	102	106	Right-handed 310
Helix 22	AC4	H	5	21	Right-handed alpha
Helix 23	AC5	H	30	43	Right-handed alpha
Helix 24	AC6	H	113	120	Right-handed alpha
Helix 25	AC7	K	48	51	Right-handed 310
Helix 26	AC8	K	53	57	Right-handed 310
Helix 27	AC9	K	59	72	Right-handed alpha
Helix 28	AD1	K	73	75	Right-handed 310
Helix 29	AD2	K	92	101	Right-handed alpha
Helix 30	AD3	L	3	10	Right-handed alpha
Helix 31	AD4	L	21	25	Right-handed 310
Helix 32	AD5	L	113	118	Right-handed 310
Helix 33	AD6	O	4	16	Right-handed alpha
Helix 34	AD7	O	24	44	Right-handed alpha
Helix 35	AD8	O	49	74	Right-handed alpha
Helix 36	AD9	O	74	86	Right-handed alpha
Helix 37	AE1	P	53	63	Right-handed alpha
Helix 38	AE2	P	68	82	Right-handed alpha
Helix 39	AE3	Q	49	52	Right-handed 310
Helix 40	AE4	R	11	17	Right-handed alpha
Helix 41	AE5	R	25	33	Right-handed alpha
Helix 42	AE6	R	41	46	Right-handed alpha
Helix 43	AE7	R	48	65	Right-handed alpha
Helix 44	AE8	T	4	42	Right-handed alpha
Helix 45	AE9	T	44	64	Right-handed alpha
Helix 46	AF1	T	68	87	Right-handed alpha
Helix 47	AF2	U	11	25	Right-handed alpha
Helix 48	AF3	U	27	35	Right-handed alpha
Helix 49	AF4	U	40	67	Right-handed alpha
Helix 50	AF5	X	4	19	Right-handed alpha
Helix 51	AF6	X	47	65	Right-handed alpha
Helix 52	AF7	X	87	94	Right-handed alpha

There are 14 sheets in PDB entry 7NAS. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3, AB4, AB5,

There are 2 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	123	125	first strand
Strand 2	D	128	130	anti-parallel

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There are 3 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	141	144	first strand
Strand 2	D	179	182	anti-parallel
Strand 3	D	172	174	anti-parallel

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There are 4 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	12	21	first strand
Strand 2	E	32	40	anti-parallel
Strand 3	E	45	53	anti-parallel
Strand 4	E	72	73	anti-parallel

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There are 4 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	85	89	first strand
Strand 2	E	92	98	anti-parallel
Strand 3	E	123	129	anti-parallel
Strand 4	E	105	106	parallel

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There are 2 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	3	4	first strand
Strand 2	F	91	92	anti-parallel

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There are 4 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	38	45	first strand
Strand 2	F	57	63	anti-parallel
Strand 3	F	7	10	anti-parallel
Strand 4	F	84	88	anti-parallel

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There are 3 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	24	28	first strand
Strand 2	H	58	62	anti-parallel
Strand 3	H	48	52	anti-parallel

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There are 4 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	74	77	first strand
Strand 2	H	124	130	anti-parallel
Strand 3	H	101	106	anti-parallel
Strand 4	H	109	112	anti-parallel

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There are 6 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	41	46	first strand
Strand 2	K	30	35	anti-parallel
Strand 3	K	20	25	anti-parallel
Strand 4	K	83	87	parallel
Strand 5	K	109	112	parallel
Strand 6	U	4	5	anti-parallel

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There are 9 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	X	22	29	first strand
Strand 2	X	35	41	anti-parallel
Strand 3	X	74	77	parallel
Strand 4	L	30	41	anti-parallel
Strand 5	L	79	83	anti-parallel
Strand 6	L	95	97	anti-parallel
Strand 7	L	62	66	parallel
Strand 8	L	50	57	anti-parallel
Strand 9	L	30	41	anti-parallel

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There are 5 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	50	52	first strand
Strand 2	P	37	39	anti-parallel
Strand 3	P	14	23	anti-parallel
Strand 4	P	2	11	anti-parallel
Strand 5	P	66	67	parallel

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There are 3 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	12	17	first strand
Strand 2	Q	20	30	anti-parallel
Strand 3	Q	37	43	anti-parallel

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There are 5 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	12	17	first strand
Strand 2	Q	20	30	anti-parallel
Strand 3	Q	46	47	anti-parallel
Strand 4	Q	73	78	parallel
Strand 5	Q	59	63	anti-parallel

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There are 6 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	X	83	84	first strand
Strand 2	X	141	146	anti-parallel
Strand 3	X	98	103	anti-parallel
Strand 4	X	113	120	anti-parallel
Strand 5	X	124	129	anti-parallel
Strand 6	X	132	137	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: 7NAS

Analysis of interatomic Contacts of Structural Units in PDB entry:
7NAS