Analysis of interatomic Contacts of Structural Units in PDB entry:
2NXI

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 2NXI entry

There are 12 chains in PDB entry 2NXI (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LYS 3	ILE 264
B	LYS 3	ILE 264
C	LYS 3	ILE 264
D	LYS 3	ILE 264
E	LYS 3	ILE 264
F	LYS 3	ILE 264
G	LYS 3	ILE 264
H	LYS 3	ILE 264
I	LYS 3	ILE 264
J	LYS 3	ILE 264
K	LYS 3	ILE 264
L	LYS 3	ILE 264

There are170 helices in PDB entry 2NXI. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	15	33	Right-handed alpha
Helix 2	2	A	59	75	Right-handed alpha
Helix 3	3	A	84	86	Right-handed 310
Helix 4	4	A	87	93	Right-handed alpha
Helix 5	5	A	101	105	Right-handed 310
Helix 6	6	A	107	117	Right-handed alpha
Helix 7	7	A	130	132	Right-handed 310
Helix 8	8	A	133	145	Right-handed alpha
Helix 9	9	A	168	174	Right-handed alpha
Helix 10	10	A	184	188	Right-handed 310
Helix 11	11	A	200	202	Right-handed 310
Helix 12	12	A	203	215	Right-handed alpha
Helix 13	13	A	226	230	Right-handed 310
Helix 14	14	A	233	237	Right-handed 310
Helix 15	15	A	242	258	Right-handed alpha
Helix 16	16	A	259	261	Right-handed 310
Helix 17	17	B	15	33	Right-handed alpha
Helix 18	18	B	59	75	Right-handed alpha
Helix 19	19	B	84	86	Right-handed 310
Helix 20	20	B	87	93	Right-handed alpha
Helix 21	21	B	101	105	Right-handed 310
Helix 22	22	B	107	116	Right-handed alpha
Helix 23	23	B	130	133	Right-handed 310
Helix 24	24	B	134	144	Right-handed alpha
Helix 25	25	B	168	175	Right-handed alpha
Helix 26	26	B	184	188	Right-handed 310
Helix 27	27	B	200	202	Right-handed 310
Helix 28	28	B	203	215	Right-handed alpha
Helix 29	29	B	226	230	Right-handed 310
Helix 30	30	B	233	237	Right-handed 310
Helix 31	31	B	242	259	Right-handed alpha
Helix 32	32	C	15	33	Right-handed alpha
Helix 33	33	C	58	74	Right-handed alpha
Helix 34	34	C	84	86	Right-handed 310
Helix 35	35	C	87	92	Right-handed alpha
Helix 36	36	C	101	105	Right-handed 310
Helix 37	37	C	107	115	Right-handed alpha
Helix 38	38	C	130	132	Right-handed 310
Helix 39	39	C	133	143	Right-handed alpha
Helix 40	40	C	168	174	Right-handed alpha
Helix 41	41	C	200	202	Right-handed 310
Helix 42	42	C	203	215	Right-handed alpha
Helix 43	43	C	226	230	Right-handed 310
Helix 44	44	C	242	258	Right-handed alpha
Helix 45	45	C	259	261	Right-handed 310
Helix 46	46	D	15	33	Right-handed alpha
Helix 47	47	D	58	74	Right-handed alpha
Helix 48	48	D	84	86	Right-handed 310
Helix 49	49	D	87	92	Right-handed alpha
Helix 50	50	D	101	105	Right-handed 310
Helix 51	51	D	107	117	Right-handed alpha
Helix 52	52	D	130	132	Right-handed 310
Helix 53	53	D	133	144	Right-handed alpha
Helix 54	54	D	168	174	Right-handed alpha
Helix 55	55	D	184	188	Right-handed 310
Helix 56	56	D	200	202	Right-handed 310
Helix 57	57	D	203	215	Right-handed alpha
Helix 58	58	D	226	230	Right-handed 310
Helix 59	59	D	242	259	Right-handed alpha
Helix 60	60	E	15	33	Right-handed alpha
Helix 61	61	E	58	69	Right-handed alpha
Helix 62	62	E	69	74	Right-handed alpha
Helix 63	63	E	84	86	Right-handed 310
Helix 64	64	E	87	92	Right-handed alpha
Helix 65	65	E	102	106	Right-handed 310
Helix 66	66	E	107	117	Right-handed alpha
Helix 67	67	E	130	133	Right-handed 310
Helix 68	68	E	134	144	Right-handed alpha
Helix 69	69	E	168	174	Right-handed alpha
Helix 70	70	E	200	202	Right-handed 310
Helix 71	71	E	203	215	Right-handed alpha
Helix 72	72	E	226	230	Right-handed 310
Helix 73	73	E	242	258	Right-handed alpha
Helix 74	74	E	259	261	Right-handed 310
Helix 75	75	F	15	33	Right-handed alpha
Helix 76	76	F	59	74	Right-handed alpha
Helix 77	77	F	84	86	Right-handed 310
Helix 78	78	F	87	92	Right-handed alpha
Helix 79	79	F	107	117	Right-handed alpha
Helix 80	80	F	130	132	Right-handed 310
Helix 81	81	F	133	143	Right-handed alpha
Helix 82	82	F	168	174	Right-handed alpha
Helix 83	83	F	200	202	Right-handed 310
Helix 84	84	F	203	215	Right-handed alpha
Helix 85	85	F	226	230	Right-handed 310
Helix 86	86	F	242	259	Right-handed alpha
Helix 87	87	G	15	33	Right-handed alpha
Helix 88	88	G	59	75	Right-handed alpha
Helix 89	89	G	84	86	Right-handed 310
Helix 90	90	G	87	93	Right-handed alpha
Helix 91	91	G	101	105	Right-handed 310
Helix 92	92	G	107	116	Right-handed alpha
Helix 93	93	G	130	132	Right-handed 310
Helix 94	94	G	133	145	Right-handed alpha
Helix 95	95	G	168	174	Right-handed alpha
Helix 96	96	G	184	188	Right-handed 310
Helix 97	97	G	200	202	Right-handed 310
Helix 98	98	G	203	215	Right-handed alpha
Helix 99	99	G	226	230	Right-handed 310
Helix 100	100	G	242	258	Right-handed alpha
Helix 101	101	G	259	261	Right-handed 310
Helix 102	102	H	15	33	Right-handed alpha
Helix 103	103	H	59	75	Right-handed alpha
Helix 104	104	H	84	86	Right-handed 310
Helix 105	105	H	87	93	Right-handed alpha
Helix 106	106	H	101	105	Right-handed 310
Helix 107	107	H	107	116	Right-handed alpha
Helix 108	108	H	130	132	Right-handed 310
Helix 109	109	H	133	144	Right-handed alpha
Helix 110	110	H	168	174	Right-handed alpha
Helix 111	111	H	200	202	Right-handed 310
Helix 112	112	H	203	215	Right-handed alpha
Helix 113	113	H	226	230	Right-handed 310
Helix 114	114	H	233	237	Right-handed 310
Helix 115	115	H	242	258	Right-handed alpha
Helix 116	116	H	259	261	Right-handed 310
Helix 117	117	I	15	33	Right-handed alpha
Helix 118	118	I	58	75	Right-handed alpha
Helix 119	119	I	84	86	Right-handed 310
Helix 120	120	I	87	93	Right-handed alpha
Helix 121	121	I	101	105	Right-handed 310
Helix 122	122	I	107	116	Right-handed alpha
Helix 123	123	I	130	132	Right-handed 310
Helix 124	124	I	133	144	Right-handed alpha
Helix 125	125	I	168	174	Right-handed alpha
Helix 126	126	I	200	202	Right-handed 310
Helix 127	127	I	203	215	Right-handed alpha
Helix 128	128	I	226	230	Right-handed 310
Helix 129	129	I	242	258	Right-handed alpha
Helix 130	130	I	259	261	Right-handed 310
Helix 131	131	J	15	33	Right-handed alpha
Helix 132	132	J	59	75	Right-handed alpha
Helix 133	133	J	84	86	Right-handed 310
Helix 134	134	J	87	92	Right-handed alpha
Helix 135	135	J	101	105	Right-handed 310
Helix 136	136	J	107	116	Right-handed alpha
Helix 137	137	J	130	132	Right-handed 310
Helix 138	138	J	133	144	Right-handed alpha
Helix 139	139	J	168	174	Right-handed alpha
Helix 140	140	J	184	186	Right-handed 310
Helix 141	141	J	203	215	Right-handed alpha
Helix 142	142	J	226	230	Right-handed 310
Helix 143	143	J	242	258	Right-handed alpha
Helix 144	144	J	259	261	Right-handed 310
Helix 145	145	K	16	33	Right-handed alpha
Helix 146	146	K	58	75	Right-handed alpha
Helix 147	147	K	84	86	Right-handed 310
Helix 148	148	K	87	93	Right-handed alpha
Helix 149	149	K	101	105	Right-handed 310
Helix 150	150	K	107	117	Right-handed alpha
Helix 151	151	K	130	132	Right-handed 310
Helix 152	152	K	133	144	Right-handed alpha
Helix 153	153	K	168	174	Right-handed alpha
Helix 154	154	K	200	202	Right-handed 310
Helix 155	155	K	203	215	Right-handed alpha
Helix 156	156	K	242	259	Right-handed alpha
Helix 157	157	L	15	33	Right-handed alpha
Helix 158	158	L	59	75	Right-handed alpha
Helix 159	159	L	84	86	Right-handed 310
Helix 160	160	L	87	92	Right-handed alpha
Helix 161	161	L	107	117	Right-handed alpha
Helix 162	162	L	130	133	Right-handed 310
Helix 163	163	L	134	144	Right-handed alpha
Helix 164	164	L	168	174	Right-handed alpha
Helix 165	165	L	200	202	Right-handed 310
Helix 166	166	L	203	215	Right-handed alpha
Helix 167	167	L	226	230	Right-handed 310
Helix 168	168	L	233	237	Right-handed 310
Helix 169	169	L	242	258	Right-handed alpha
Helix 170	170	L	259	261	Right-handed 310

There are 28 sheets in PDB entry 2NXI. 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,

There are 10 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	238	239	first strand
Strand 2	A	218	224	parallel
Strand 3	A	178	182	parallel
Strand 4	A	149	153	parallel
Strand 5	A	120	124	parallel
Strand 6	A	97	100	parallel
Strand 7	A	77	81	parallel
Strand 8	A	37	41	parallel
Strand 9	A	5	9	parallel
Strand 10	A	218	224	parallel

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There are 2 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	156	157	first strand
Strand 2	A	163	164	anti-parallel

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There are 10 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	238	239	first strand
Strand 2	B	218	224	parallel
Strand 3	B	178	182	parallel
Strand 4	B	149	153	parallel
Strand 5	B	120	124	parallel
Strand 6	B	97	100	parallel
Strand 7	B	77	81	parallel
Strand 8	B	37	41	parallel
Strand 9	B	5	9	parallel
Strand 10	B	218	224	parallel

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There are 2 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	156	157	first strand
Strand 2	B	163	164	anti-parallel

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There are 9 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	4	12	first strand
Strand 2	C	36	43	parallel
Strand 3	C	77	81	parallel
Strand 4	C	97	100	parallel
Strand 5	C	120	124	parallel
Strand 6	C	149	153	parallel
Strand 7	C	178	182	parallel
Strand 8	C	218	220	parallel
Strand 9	C	4	12	parallel

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There are 2 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	156	157	first strand
Strand 2	C	163	164	anti-parallel

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There are 2 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	223	224	first strand
Strand 2	C	238	239	parallel

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There are 9 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	4	12	first strand
Strand 2	D	36	43	parallel
Strand 3	D	77	81	parallel
Strand 4	D	97	100	parallel
Strand 5	D	120	124	parallel
Strand 6	D	149	153	parallel
Strand 7	D	178	182	parallel
Strand 8	D	218	220	parallel
Strand 9	D	4	12	parallel

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There are 2 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	156	157	first strand
Strand 2	D	163	164	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	D	223	224	first strand
Strand 2	D	238	239	parallel

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There are 10 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	238	239	first strand
Strand 2	E	218	224	parallel
Strand 3	E	178	182	parallel
Strand 4	E	149	153	parallel
Strand 5	E	120	124	parallel
Strand 6	E	97	100	parallel
Strand 7	E	78	81	parallel
Strand 8	E	36	43	parallel
Strand 9	E	4	12	parallel
Strand 10	E	218	224	parallel

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There are 2 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	156	157	first strand
Strand 2	E	163	164	anti-parallel

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There are 10 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	238	239	first strand
Strand 2	F	218	224	parallel
Strand 3	F	178	182	parallel
Strand 4	F	149	153	parallel
Strand 5	F	120	124	parallel
Strand 6	F	97	100	parallel
Strand 7	F	77	81	parallel
Strand 8	F	37	43	parallel
Strand 9	F	5	12	parallel
Strand 10	F	218	224	parallel

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There are 2 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	156	157	first strand
Strand 2	F	163	164	anti-parallel

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There are 10 strands in O sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	238	239	first strand
Strand 2	G	218	224	parallel
Strand 3	G	178	182	parallel
Strand 4	G	149	153	parallel
Strand 5	G	120	124	parallel
Strand 6	G	97	100	parallel
Strand 7	G	77	81	parallel
Strand 8	G	37	41	parallel
Strand 9	G	5	9	parallel
Strand 10	G	218	224	parallel

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There are 2 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	156	157	first strand
Strand 2	G	163	164	anti-parallel

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There are 10 strands in Q sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	238	239	first strand
Strand 2	H	218	224	parallel
Strand 3	H	178	182	parallel
Strand 4	H	149	153	parallel
Strand 5	H	120	124	parallel
Strand 6	H	97	100	parallel
Strand 7	H	77	81	parallel
Strand 8	H	37	41	parallel
Strand 9	H	5	9	parallel
Strand 10	H	218	224	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	156	157	first strand
Strand 2	H	163	164	anti-parallel

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There are 10 strands in S sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	238	239	first strand
Strand 2	I	218	224	parallel
Strand 3	I	178	182	parallel
Strand 4	I	149	153	parallel
Strand 5	I	120	124	parallel
Strand 6	I	97	100	parallel
Strand 7	I	77	81	parallel
Strand 8	I	36	43	parallel
Strand 9	I	4	12	parallel
Strand 10	I	218	224	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	I	156	157	first strand
Strand 2	I	163	164	anti-parallel

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There are 10 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	238	239	first strand
Strand 2	J	218	224	parallel
Strand 3	J	178	182	parallel
Strand 4	J	149	153	parallel
Strand 5	J	120	124	parallel
Strand 6	J	97	100	parallel
Strand 7	J	77	81	parallel
Strand 8	J	36	43	parallel
Strand 9	J	4	12	parallel
Strand 10	J	218	224	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	156	157	first strand
Strand 2	J	163	164	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	188	189	first strand
Strand 2	J	198	199	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	5	8	first strand
Strand 2	K	39	41	parallel
Strand 3	K	78	81	parallel
Strand 4	K	97	100	parallel
Strand 5	K	120	124	parallel
Strand 6	K	149	153	parallel
Strand 7	K	178	182	parallel
Strand 8	K	218	220	parallel
Strand 9	K	5	8	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	K	156	157	first strand
Strand 2	K	163	164	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	223	224	first strand
Strand 2	K	238	239	parallel

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There are 10 strands in AA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	238	239	first strand
Strand 2	L	218	224	parallel
Strand 3	L	178	182	parallel
Strand 4	L	149	153	parallel
Strand 5	L	120	124	parallel
Strand 6	L	97	100	parallel
Strand 7	L	77	81	parallel
Strand 8	L	37	43	parallel
Strand 9	L	5	12	parallel
Strand 10	L	218	224	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	156	157	first strand
Strand 2	L	163	164	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: 2NXI

Analysis of interatomic Contacts of Structural Units in PDB entry:
2NXI