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

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 2IIR entry

There are 10 chains in PDB entry 2IIR (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 1	LYS 400
B	MET 1	LYS 400
C	MET 1	LYS 400
D	MET 1	LYS 400
E	MET 1	LYS 400
F	MET 1	LYS 400
G	MET 1	LYS 400
H	MET 1	LYS 400
I	MET 1	LYS 400
J	MET 1	LYS 400

There are190 helices in PDB entry 2IIR. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	58	72	Right-handed alpha
Helix 2	2	A	105	116	Right-handed alpha
Helix 3	3	A	117	119	Right-handed 310
Helix 4	4	A	122	137	Right-handed alpha
Helix 5	5	A	148	154	Right-handed 310
Helix 6	6	A	155	160	Right-handed alpha
Helix 7	7	A	165	172	Right-handed alpha
Helix 8	8	A	179	194	Right-handed alpha
Helix 9	9	A	197	200	Right-handed 310
Helix 10	10	A	247	257	Right-handed alpha
Helix 11	11	A	259	270	Right-handed alpha
Helix 12	12	A	271	277	Right-handed alpha
Helix 13	13	A	283	293	Right-handed alpha
Helix 14	14	A	295	321	Right-handed alpha
Helix 15	15	A	330	334	Right-handed alpha
Helix 16	16	A	336	346	Right-handed alpha
Helix 17	17	A	347	351	Right-handed 310
Helix 18	18	A	355	362	Right-handed alpha
Helix 19	19	A	385	399	Right-handed alpha
Helix 20	20	B	58	72	Right-handed alpha
Helix 21	21	B	105	116	Right-handed alpha
Helix 22	22	B	117	119	Right-handed 310
Helix 23	23	B	122	137	Right-handed alpha
Helix 24	24	B	148	154	Right-handed 310
Helix 25	25	B	155	160	Right-handed alpha
Helix 26	26	B	165	172	Right-handed alpha
Helix 27	27	B	179	194	Right-handed alpha
Helix 28	28	B	197	200	Right-handed 310
Helix 29	29	B	247	257	Right-handed alpha
Helix 30	30	B	259	270	Right-handed alpha
Helix 31	31	B	271	277	Right-handed alpha
Helix 32	32	B	283	293	Right-handed alpha
Helix 33	33	B	295	321	Right-handed alpha
Helix 34	34	B	330	334	Right-handed alpha
Helix 35	35	B	336	346	Right-handed alpha
Helix 36	36	B	347	351	Right-handed 310
Helix 37	37	B	355	362	Right-handed alpha
Helix 38	38	B	385	399	Right-handed alpha
Helix 39	39	C	58	72	Right-handed alpha
Helix 40	40	C	105	116	Right-handed alpha
Helix 41	41	C	117	119	Right-handed 310
Helix 42	42	C	122	137	Right-handed alpha
Helix 43	43	C	148	154	Right-handed 310
Helix 44	44	C	155	160	Right-handed alpha
Helix 45	45	C	165	172	Right-handed alpha
Helix 46	46	C	179	194	Right-handed alpha
Helix 47	47	C	197	200	Right-handed 310
Helix 48	48	C	247	257	Right-handed alpha
Helix 49	49	C	259	270	Right-handed alpha
Helix 50	50	C	271	277	Right-handed alpha
Helix 51	51	C	283	293	Right-handed alpha
Helix 52	52	C	295	321	Right-handed alpha
Helix 53	53	C	330	334	Right-handed alpha
Helix 54	54	C	336	346	Right-handed alpha
Helix 55	55	C	347	351	Right-handed 310
Helix 56	56	C	355	362	Right-handed alpha
Helix 57	57	C	385	399	Right-handed alpha
Helix 58	58	D	58	72	Right-handed alpha
Helix 59	59	D	105	116	Right-handed alpha
Helix 60	60	D	117	119	Right-handed 310
Helix 61	61	D	122	137	Right-handed alpha
Helix 62	62	D	148	154	Right-handed 310
Helix 63	63	D	155	160	Right-handed alpha
Helix 64	64	D	165	172	Right-handed alpha
Helix 65	65	D	179	194	Right-handed alpha
Helix 66	66	D	197	200	Right-handed 310
Helix 67	67	D	247	257	Right-handed alpha
Helix 68	68	D	259	270	Right-handed alpha
Helix 69	69	D	271	277	Right-handed alpha
Helix 70	70	D	283	293	Right-handed alpha
Helix 71	71	D	295	321	Right-handed alpha
Helix 72	72	D	330	334	Right-handed alpha
Helix 73	73	D	336	346	Right-handed alpha
Helix 74	74	D	347	351	Right-handed 310
Helix 75	75	D	355	362	Right-handed alpha
Helix 76	76	D	385	399	Right-handed alpha
Helix 77	77	E	58	72	Right-handed alpha
Helix 78	78	E	105	116	Right-handed alpha
Helix 79	79	E	117	119	Right-handed 310
Helix 80	80	E	122	137	Right-handed alpha
Helix 81	81	E	148	154	Right-handed 310
Helix 82	82	E	155	160	Right-handed alpha
Helix 83	83	E	165	172	Right-handed alpha
Helix 84	84	E	179	194	Right-handed alpha
Helix 85	85	E	197	200	Right-handed 310
Helix 86	86	E	247	257	Right-handed alpha
Helix 87	87	E	259	270	Right-handed alpha
Helix 88	88	E	271	277	Right-handed alpha
Helix 89	89	E	283	293	Right-handed alpha
Helix 90	90	E	295	321	Right-handed alpha
Helix 91	91	E	330	334	Right-handed alpha
Helix 92	92	E	336	346	Right-handed alpha
Helix 93	93	E	347	351	Right-handed 310
Helix 94	94	E	355	362	Right-handed alpha
Helix 95	95	E	385	399	Right-handed alpha
Helix 96	96	F	58	72	Right-handed alpha
Helix 97	97	F	105	116	Right-handed alpha
Helix 98	98	F	117	119	Right-handed 310
Helix 99	99	F	122	137	Right-handed alpha
Helix 100	100	F	148	154	Right-handed 310
Helix 101	101	F	155	160	Right-handed alpha
Helix 102	102	F	165	172	Right-handed alpha
Helix 103	103	F	179	194	Right-handed alpha
Helix 104	104	F	197	200	Right-handed 310
Helix 105	105	F	247	257	Right-handed alpha
Helix 106	106	F	259	270	Right-handed alpha
Helix 107	107	F	271	277	Right-handed alpha
Helix 108	108	F	283	293	Right-handed alpha
Helix 109	109	F	295	321	Right-handed alpha
Helix 110	110	F	330	334	Right-handed alpha
Helix 111	111	F	336	346	Right-handed alpha
Helix 112	112	F	347	351	Right-handed 310
Helix 113	113	F	355	362	Right-handed alpha
Helix 114	114	F	385	399	Right-handed alpha
Helix 115	115	G	58	72	Right-handed alpha
Helix 116	116	G	105	116	Right-handed alpha
Helix 117	117	G	117	119	Right-handed 310
Helix 118	118	G	122	137	Right-handed alpha
Helix 119	119	G	148	154	Right-handed 310
Helix 120	120	G	155	160	Right-handed alpha
Helix 121	121	G	165	172	Right-handed alpha
Helix 122	122	G	179	194	Right-handed alpha
Helix 123	123	G	197	200	Right-handed 310
Helix 124	124	G	247	257	Right-handed alpha
Helix 125	125	G	259	270	Right-handed alpha
Helix 126	126	G	271	277	Right-handed alpha
Helix 127	127	G	283	293	Right-handed alpha
Helix 128	128	G	295	321	Right-handed alpha
Helix 129	129	G	330	334	Right-handed alpha
Helix 130	130	G	336	346	Right-handed alpha
Helix 131	131	G	347	351	Right-handed 310
Helix 132	132	G	355	362	Right-handed alpha
Helix 133	133	G	385	399	Right-handed alpha
Helix 134	134	H	58	72	Right-handed alpha
Helix 135	135	H	105	116	Right-handed alpha
Helix 136	136	H	117	119	Right-handed 310
Helix 137	137	H	122	137	Right-handed alpha
Helix 138	138	H	148	154	Right-handed 310
Helix 139	139	H	155	160	Right-handed alpha
Helix 140	140	H	165	172	Right-handed alpha
Helix 141	141	H	179	194	Right-handed alpha
Helix 142	142	H	197	200	Right-handed 310
Helix 143	143	H	247	257	Right-handed alpha
Helix 144	144	H	259	270	Right-handed alpha
Helix 145	145	H	271	277	Right-handed alpha
Helix 146	146	H	283	293	Right-handed alpha
Helix 147	147	H	295	321	Right-handed alpha
Helix 148	148	H	330	334	Right-handed alpha
Helix 149	149	H	336	346	Right-handed alpha
Helix 150	150	H	347	351	Right-handed 310
Helix 151	151	H	355	362	Right-handed alpha
Helix 152	152	H	385	399	Right-handed alpha
Helix 153	153	I	58	72	Right-handed alpha
Helix 154	154	I	105	116	Right-handed alpha
Helix 155	155	I	117	119	Right-handed 310
Helix 156	156	I	122	137	Right-handed alpha
Helix 157	157	I	148	154	Right-handed 310
Helix 158	158	I	155	160	Right-handed alpha
Helix 159	159	I	165	172	Right-handed alpha
Helix 160	160	I	179	194	Right-handed alpha
Helix 161	161	I	197	200	Right-handed 310
Helix 162	162	I	247	257	Right-handed alpha
Helix 163	163	I	259	270	Right-handed alpha
Helix 164	164	I	271	277	Right-handed alpha
Helix 165	165	I	283	293	Right-handed alpha
Helix 166	166	I	295	321	Right-handed alpha
Helix 167	167	I	330	334	Right-handed alpha
Helix 168	168	I	336	346	Right-handed alpha
Helix 169	169	I	347	351	Right-handed 310
Helix 170	170	I	355	362	Right-handed alpha
Helix 171	171	I	385	399	Right-handed alpha
Helix 172	172	J	58	72	Right-handed alpha
Helix 173	173	J	105	116	Right-handed alpha
Helix 174	174	J	117	119	Right-handed 310
Helix 175	175	J	122	137	Right-handed alpha
Helix 176	176	J	148	154	Right-handed 310
Helix 177	177	J	155	160	Right-handed alpha
Helix 178	178	J	165	172	Right-handed alpha
Helix 179	179	J	179	194	Right-handed alpha
Helix 180	180	J	197	200	Right-handed 310
Helix 181	181	J	247	257	Right-handed alpha
Helix 182	182	J	259	270	Right-handed alpha
Helix 183	183	J	271	277	Right-handed alpha
Helix 184	184	J	283	293	Right-handed alpha
Helix 185	185	J	295	321	Right-handed alpha
Helix 186	186	J	330	334	Right-handed alpha
Helix 187	187	J	336	346	Right-handed alpha
Helix 188	188	J	347	351	Right-handed 310
Helix 189	189	J	355	362	Right-handed alpha
Helix 190	190	J	385	399	Right-handed alpha

There are 20 sheets in PDB entry 2IIR. 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,

There are 8 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	48	53	first strand
Strand 2	A	40	45	anti-parallel
Strand 3	A	24	32	anti-parallel
Strand 4	A	12	19	anti-parallel
Strand 5	A	2	9	anti-parallel
Strand 6	A	86	91	parallel
Strand 7	A	142	146	parallel
Strand 8	A	102	103	anti-parallel

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There are 6 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	221	225	first strand
Strand 2	A	212	218	anti-parallel
Strand 3	A	202	208	anti-parallel
Strand 4	A	325	329	parallel
Strand 5	A	378	381	parallel
Strand 6	A	368	369	anti-parallel

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There are 8 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	48	53	first strand
Strand 2	B	40	45	anti-parallel
Strand 3	B	24	32	anti-parallel
Strand 4	B	12	19	anti-parallel
Strand 5	B	2	9	anti-parallel
Strand 6	B	86	91	parallel
Strand 7	B	142	146	parallel
Strand 8	B	102	103	anti-parallel

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There are 6 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	221	225	first strand
Strand 2	B	212	218	anti-parallel
Strand 3	B	202	208	anti-parallel
Strand 4	B	325	329	parallel
Strand 5	B	378	381	parallel
Strand 6	B	368	369	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	C	48	53	first strand
Strand 2	C	40	45	anti-parallel
Strand 3	C	24	32	anti-parallel
Strand 4	C	12	19	anti-parallel
Strand 5	C	2	9	anti-parallel
Strand 6	C	86	91	parallel
Strand 7	C	142	146	parallel
Strand 8	C	102	103	anti-parallel

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There are 6 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	221	225	first strand
Strand 2	C	212	218	anti-parallel
Strand 3	C	202	208	anti-parallel
Strand 4	C	325	329	parallel
Strand 5	C	378	381	parallel
Strand 6	C	368	369	anti-parallel

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There are 8 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	48	53	first strand
Strand 2	D	40	45	anti-parallel
Strand 3	D	24	32	anti-parallel
Strand 4	D	13	19	anti-parallel
Strand 5	D	2	8	anti-parallel
Strand 6	D	86	91	parallel
Strand 7	D	142	146	parallel
Strand 8	D	102	103	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	D	221	225	first strand
Strand 2	D	212	218	anti-parallel
Strand 3	D	202	208	anti-parallel
Strand 4	D	325	329	parallel
Strand 5	D	378	381	parallel
Strand 6	D	368	369	anti-parallel

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There are 8 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	48	53	first strand
Strand 2	E	40	45	anti-parallel
Strand 3	E	24	32	anti-parallel
Strand 4	E	12	19	anti-parallel
Strand 5	E	2	9	anti-parallel
Strand 6	E	86	91	parallel
Strand 7	E	142	146	parallel
Strand 8	E	102	103	anti-parallel

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There are 6 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	221	225	first strand
Strand 2	E	212	218	anti-parallel
Strand 3	E	202	208	anti-parallel
Strand 4	E	325	329	parallel
Strand 5	E	378	381	parallel
Strand 6	E	368	369	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	48	53	first strand
Strand 2	F	40	45	anti-parallel
Strand 3	F	24	32	anti-parallel
Strand 4	F	12	19	anti-parallel
Strand 5	F	2	9	anti-parallel
Strand 6	F	86	91	parallel
Strand 7	F	142	146	parallel
Strand 8	F	102	103	anti-parallel

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There are 6 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	221	225	first strand
Strand 2	F	212	218	anti-parallel
Strand 3	F	202	208	anti-parallel
Strand 4	F	325	329	parallel
Strand 5	F	378	381	parallel
Strand 6	F	368	369	anti-parallel

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There are 8 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	48	53	first strand
Strand 2	G	40	45	anti-parallel
Strand 3	G	24	32	anti-parallel
Strand 4	G	13	19	anti-parallel
Strand 5	G	2	8	anti-parallel
Strand 6	G	86	91	parallel
Strand 7	G	142	146	parallel
Strand 8	G	102	103	anti-parallel

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There are 6 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	221	225	first strand
Strand 2	G	212	218	anti-parallel
Strand 3	G	202	208	anti-parallel
Strand 4	G	325	329	parallel
Strand 5	G	378	381	parallel
Strand 6	G	368	369	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	H	48	53	first strand
Strand 2	H	40	45	anti-parallel
Strand 3	H	24	32	anti-parallel
Strand 4	H	12	19	anti-parallel
Strand 5	H	2	9	anti-parallel
Strand 6	H	86	91	parallel
Strand 7	H	142	146	parallel
Strand 8	H	102	103	anti-parallel

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There are 6 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	221	225	first strand
Strand 2	H	212	218	anti-parallel
Strand 3	H	202	208	anti-parallel
Strand 4	H	325	329	parallel
Strand 5	H	378	381	parallel
Strand 6	H	368	369	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	48	53	first strand
Strand 2	I	40	45	anti-parallel
Strand 3	I	24	32	anti-parallel
Strand 4	I	12	19	anti-parallel
Strand 5	I	2	9	anti-parallel
Strand 6	I	86	91	parallel
Strand 7	I	142	146	parallel
Strand 8	I	102	103	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	I	221	225	first strand
Strand 2	I	212	218	anti-parallel
Strand 3	I	202	208	anti-parallel
Strand 4	I	325	329	parallel
Strand 5	I	378	381	parallel
Strand 6	I	368	369	anti-parallel

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There are 8 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	48	53	first strand
Strand 2	J	40	45	anti-parallel
Strand 3	J	24	32	anti-parallel
Strand 4	J	12	19	anti-parallel
Strand 5	J	2	9	anti-parallel
Strand 6	J	86	91	parallel
Strand 7	J	142	146	parallel
Strand 8	J	102	103	anti-parallel

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There are 6 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	221	225	first strand
Strand 2	J	212	218	anti-parallel
Strand 3	J	202	208	anti-parallel
Strand 4	J	325	329	parallel
Strand 5	J	378	381	parallel
Strand 6	J	368	369	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: 2IIR

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