Analysis of interatomic Contacts of Structural Units in PDB entry:
4IO9

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 4IO9 entry

There are 30 chains in PDB entry 4IO9 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
X	G 1	A 2877
Y	C 2	U 123
A	LEU 33	THR 272
B	MET 1	SER 205
C	ALA 2	GLU 198
D	GLN 3	LYS 179
E	GLY 5	LYS 175
F	MET 74	ALA 144
G	LYS 30	LEU 171
H	MET 1	LEU 134
I	HIS 4	GLU 144
J	LYS 6	ALA 141
K	HIS 3	LEU 115
L	ARG 8	GLY 111
M	GLN 2	GLU 109
N	PRO 2	GLN 118
O	ILE 5	ILE 98
P	PHE 8	LYS 134
Q	SER 2	GLN 94
R	PRO 4	THR 113
S	MET 1	ARG 175
T	ALA 2	GLN 85
U	THR 8	GLU 79
V	MET 1	GLN 66
W	MET 1	GLU 55
Z	ALA 2	ALA 59
1	ALA 2	LYS 54
2	MET 1	ASP 46
3	PRO 2	ARG 64
4	MET 1	GLY 37

There are 77 helices in PDB entry 4IO9. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	69	73	Right-handed 310
Helix 2	2	A	211	215	Right-handed 310
Helix 3	3	A	222	226	Right-handed 310
Helix 4	4	A	261	265	Right-handed 310
Helix 5	5	B	60	71	Right-handed alpha
Helix 6	6	B	115	121	Right-handed alpha
Helix 7	7	C	23	39	Right-handed alpha
Helix 8	8	C	96	113	Right-handed alpha
Helix 9	9	C	130	140	Right-handed alpha
Helix 10	10	C	154	160	Right-handed alpha
Helix 11	11	C	176	183	Right-handed alpha
Helix 12	12	D	5	11	Right-handed alpha
Helix 13	13	D	12	20	Right-handed alpha
Helix 14	14	D	48	61	Right-handed alpha
Helix 15	15	D	93	105	Right-handed alpha
Helix 16	16	D	162	175	Right-handed alpha
Helix 17	17	E	59	81	Right-handed alpha
Helix 18	18	E	137	151	Right-handed alpha
Helix 19	19	F	75	82	Right-handed alpha
Helix 20	20	F	100	103	Right-handed 310
Helix 21	21	F	104	109	Right-handed alpha
Helix 22	22	F	120	129	Right-handed alpha
Helix 23	23	F	129	135	Right-handed alpha
Helix 24	24	G	50	64	Right-handed alpha
Helix 25	25	G	84	88	Right-handed 310
Helix 26	26	G	122	132	Right-handed alpha
Helix 27	27	G	133	135	Right-handed 310
Helix 28	28	G	138	144	Right-handed alpha
Helix 29	29	G	145	147	Right-handed 310
Helix 30	30	G	157	161	Right-handed 310
Helix 31	31	H	116	121	Right-handed alpha
Helix 32	32	H	123	130	Right-handed alpha
Helix 33	33	I	77	81	Right-handed alpha
Helix 34	34	I	91	99	Right-handed alpha
Helix 35	35	I	126	134	Right-handed alpha
Helix 36	36	J	45	60	Right-handed alpha
Helix 37	37	J	111	124	Right-handed alpha
Helix 38	38	K	13	32	Right-handed alpha
Helix 39	39	K	38	56	Right-handed alpha
Helix 40	40	K	59	67	Right-handed alpha
Helix 41	41	K	72	82	Right-handed alpha
Helix 42	42	K	82	87	Right-handed alpha
Helix 43	43	L	9	18	Right-handed alpha
Helix 44	44	L	20	25	Right-handed alpha
Helix 45	45	L	67	82	Right-handed alpha
Helix 46	46	L	98	110	Right-handed alpha
Helix 47	47	M	8	16	Right-handed alpha
Helix 48	48	M	17	21	Right-handed 310
Helix 49	49	M	60	63	Right-handed 310
Helix 50	50	M	104	109	Right-handed 310
Helix 51	51	N	8	21	Right-handed alpha
Helix 52	52	N	26	31	Right-handed alpha
Helix 53	53	N	31	72	Right-handed alpha
Helix 54	54	N	75	86	Right-handed alpha
Helix 55	55	N	94	102	Right-handed alpha
Helix 56	56	N	102	118	Right-handed alpha
Helix 57	57	P	10	18	Right-handed alpha
Helix 58	58	P	34	46	Right-handed alpha
Helix 59	59	P	49	58	Right-handed alpha
Helix 60	60	P	64	81	Right-handed alpha
Helix 61	61	P	82	84	Right-handed 310
Helix 62	62	P	86	88	Right-handed 310
Helix 63	63	P	110	112	Right-handed 310
Helix 64	64	Q	14	21	Right-handed alpha
Helix 65	65	Q	34	47	Right-handed alpha
Helix 66	66	S	10	15	Right-handed alpha
Helix 67	67	S	36	47	Right-handed alpha
Helix 68	68	U	63	66	Right-handed 310
Helix 69	69	U	67	72	Right-handed alpha
Helix 70	70	V	3	8	Right-handed alpha
Helix 71	71	V	10	35	Right-handed alpha
Helix 72	72	V	39	63	Right-handed alpha
Helix 73	73	W	13	23	Right-handed alpha
Helix 74	74	W	37	47	Right-handed alpha
Helix 75	75	Z	12	20	Right-handed alpha
Helix 76	76	Z	21	23	Right-handed 310
Helix 77	77	4	29	32	Right-handed 310

There are 42 sheets in PDB entry 4IO9. 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, AO, AP,

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	102	106	first strand
Strand 2	A	92	97	anti-parallel
Strand 3	A	76	83	anti-parallel
Strand 4	A	116	118	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	182	186	first strand
Strand 2	A	172	176	anti-parallel
Strand 3	A	163	168	anti-parallel
Strand 4	A	141	143	anti-parallel
Strand 5	A	192	193	anti-parallel

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There are 7 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	3	16	first strand
Strand 2	B	19	27	anti-parallel
Strand 3	B	181	185	anti-parallel
Strand 4	B	164	176	anti-parallel
Strand 5	B	101	107	anti-parallel
Strand 6	B	195	199	anti-parallel
Strand 7	B	3	16	anti-parallel

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There are 3 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	33	37	first strand
Strand 2	B	46	50	anti-parallel
Strand 3	B	78	82	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	B	113	114	first strand
Strand 2	B	158	159	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	116	117	first strand
Strand 2	C	185	187	parallel
Strand 3	C	148	150	parallel
Strand 4	C	167	169	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	66	68	first strand
Strand 2	D	86	91	anti-parallel
Strand 3	D	31	38	anti-parallel
Strand 4	D	152	158	anti-parallel
Strand 5	D	128	132	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	E	16	18	first strand
Strand 2	E	25	27	anti-parallel
Strand 3	E	32	33	anti-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	E	42	46	first strand
Strand 2	E	49	53	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	122	124	first strand
Strand 2	E	130	135	anti-parallel
Strand 3	E	83	90	anti-parallel
Strand 4	E	161	163	anti-parallel

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There are 3 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	95	99	first strand
Strand 2	E	102	106	anti-parallel
Strand 3	E	113	115	anti-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	F	97	98	first strand
Strand 2	F	136	137	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	41	45	first strand
Strand 2	G	79	83	parallel
Strand 3	G	149	150	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	G	99	101	first strand
Strand 2	G	113	115	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	H	7	10	first strand
Strand 2	H	16	24	anti-parallel
Strand 3	H	50	58	anti-parallel
Strand 4	H	69	76	anti-parallel
Strand 5	H	95	99	anti-parallel
Strand 6	H	7	10	parallel

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There are 7 strands in P sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	81	82	first strand
Strand 2	H	88	91	anti-parallel
Strand 3	M	75	82	anti-parallel
Strand 4	M	65	72	anti-parallel
Strand 5	M	48	56	anti-parallel
Strand 6	M	30	36	anti-parallel
Strand 7	M	88	93	anti-parallel

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There are 2 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	113	114	first strand
Strand 2	H	132	133	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	I	73	76	first strand
Strand 2	I	106	109	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	J	65	67	first strand
Strand 2	J	103	107	anti-parallel
Strand 3	J	33	37	anti-parallel
Strand 4	J	130	133	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	J	41	44	first strand
Strand 2	J	93	98	anti-parallel
Strand 3	J	74	75	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	K	33	37	first strand
Strand 2	K	109	114	anti-parallel
Strand 3	K	96	102	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	L	49	50	first strand
Strand 2	L	42	44	anti-parallel
Strand 3	L	27	29	anti-parallel
Strand 4	L	87	89	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	17	21	first strand
Strand 2	O	89	95	anti-parallel
Strand 3	O	56	65	anti-parallel
Strand 4	O	32	34	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	38	39	first strand
Strand 2	O	46	47	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	O	69	75	first strand
Strand 2	O	80	86	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	25	31	first strand
Strand 2	P	122	130	anti-parallel
Strand 3	P	90	99	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	103	108	first strand
Strand 2	P	114	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	Q	7	10	first strand
Strand 2	Q	24	29	anti-parallel
Strand 3	Q	75	82	anti-parallel
Strand 4	Q	50	58	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	21	23	first strand
Strand 2	R	33	40	anti-parallel
Strand 3	R	45	48	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	R	52	56	first strand
Strand 2	R	69	73	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	30	31	first strand
Strand 2	S	18	24	anti-parallel
Strand 3	S	34	35	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	30	31	first strand
Strand 2	S	18	24	anti-parallel
Strand 3	S	78	85	parallel
Strand 4	S	61	71	anti-parallel
Strand 5	S	51	55	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	94	97	first strand
Strand 2	S	119	123	anti-parallel
Strand 3	S	159	160	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	99	101	first strand
Strand 2	S	135	137	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	112	115	first strand
Strand 2	S	169	172	anti-parallel
Strand 3	S	146	147	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	T	22	23	first strand
Strand 2	T	36	39	anti-parallel
Strand 3	T	59	61	anti-parallel
Strand 4	T	51	53	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	T	30	31	first strand
Strand 2	T	65	72	anti-parallel
Strand 3	T	76	81	anti-parallel
Strand 4	T	46	47	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	U	23	24	first strand
Strand 2	U	36	37	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	W	31	33	first strand
Strand 2	W	2	5	anti-parallel
Strand 3	W	51	53	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	Z	30	32	first strand
Strand 2	Z	39	41	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	4	2	3	first strand
Strand 2	4	34	35	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	4	15	16	first strand
Strand 2	4	25	26	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: 4IO9

Analysis of interatomic Contacts of Structural Units in PDB entry:
4IO9