Analysis of interatomic Contacts of Structural Units in PDB entry:
9IRS

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 9IRS entry

There are 12 chains in PDB entry 9IRS (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
a	GLN 22	LYS 54
b	LEU 27	LYS 54
d	PHE 22	HIS 128
f	GLN 33	LYS 156
g	LYS 26	GLY 138
m	GLN 28	SER 273
n	GLY 22	LYS 308
e	GLN 33	ARG 155
H	GLN 1	ARG 219
L	GLN 1	CYS 213
S	GLN 1	ARG 219
T	GLN 1	CYS 213

There are 26 helices in PDB entry 9IRS. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	a	29	54	Right-handed alpha
Helix 2	AA2	b	28	54	Right-handed alpha
Helix 3	AA3	d	64	66	Right-handed 310
Helix 4	AA4	d	100	127	Right-handed alpha
Helix 5	AA5	f	128	156	Right-handed alpha
Helix 6	AA6	g	78	80	Right-handed 310
Helix 7	AA7	g	111	138	Right-handed alpha
Helix 8	AA8	m	204	209	Right-handed alpha
Helix 9	AA9	m	231	235	Right-handed 310
Helix 10	AB1	m	239	273	Right-handed alpha
Helix 11	AB2	n	101	105	Right-handed 310
Helix 12	AB3	n	135	139	Right-handed 310
Helix 13	AB4	n	150	157	Right-handed alpha
Helix 14	AB5	n	217	221	Right-handed alpha
Helix 15	AB6	n	267	308	Right-handed alpha
Helix 16	AB7	e	104	108	Right-handed 310
Helix 17	AB8	e	126	154	Right-handed alpha
Helix 18	AB9	H	28	32	Right-handed 310
Helix 19	AC1	H	62	65	Right-handed 310
Helix 20	AC2	H	87	91	Right-handed 310
Helix 21	AC3	L	78	82	Right-handed 310
Helix 22	AC4	L	120	127	Right-handed alpha
Helix 23	AC5	L	182	186	Right-handed alpha
Helix 24	AC6	S	87	91	Right-handed 310
Helix 25	AC7	T	120	127	Right-handed alpha
Helix 26	AC8	T	182	186	Right-handed alpha

There are 41 sheets in PDB entry 9IRS. 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, AB6, AB7, AB8, AB9, AC1, AC2, AC3, AC4, AC5, AC6, AC7, AC8, AC9, AD1, AD2, AD3, AD4, AD5, AD6, AD7, AD8, AD9, AE1, AE2, AE3, AE4, AE5,

There are 4 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	26	27	first strand
Strand 2	d	32	36	anti-parallel
Strand 3	d	57	62	anti-parallel
Strand 4	d	50	51	anti-parallel

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There are 7 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	42	46	first strand
Strand 2	d	68	74	anti-parallel
Strand 3	d	83	91	anti-parallel
Strand 4	e	111	116	parallel
Strand 5	e	95	100	anti-parallel
Strand 6	e	57	61	anti-parallel
Strand 7	e	65	66	anti-parallel

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There are 2 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	d	96	98	first strand
Strand 2	e	122	124	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	f	37	40	first strand
Strand 2	f	44	48	anti-parallel
Strand 3	f	81	85	anti-parallel
Strand 4	f	75	76	anti-parallel

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There are 8 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	64	66	first strand
Strand 2	f	58	61	anti-parallel
Strand 3	f	94	99	anti-parallel
Strand 4	f	111	116	anti-parallel
Strand 5	g	97	102	parallel
Strand 6	g	82	88	anti-parallel
Strand 7	g	53	57	anti-parallel
Strand 8	g	60	65	anti-parallel

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There are 2 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	122	124	first strand
Strand 2	g	107	109	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	g	31	34	first strand
Strand 2	g	41	46	anti-parallel
Strand 3	g	72	76	anti-parallel

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There are 5 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	m	33	36	first strand
Strand 2	m	126	131	parallel
Strand 3	m	108	114	anti-parallel
Strand 4	m	54	60	anti-parallel
Strand 5	m	67	72	anti-parallel

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There are 4 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	m	33	36	first strand
Strand 2	m	126	131	parallel
Strand 3	m	108	114	anti-parallel
Strand 4	m	121	122	anti-parallel

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There are 4 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	m	40	46	first strand
Strand 2	m	93	99	anti-parallel
Strand 3	m	83	88	anti-parallel
Strand 4	m	76	79	anti-parallel

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There are 4 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	m	141	143	first strand
Strand 2	m	153	157	anti-parallel
Strand 3	m	195	198	anti-parallel
Strand 4	m	174	176	anti-parallel

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There are 2 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	m	180	184	first strand
Strand 2	m	189	193	anti-parallel

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There are 3 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	n	23	26	first strand
Strand 2	n	38	44	anti-parallel
Strand 3	n	95	97	anti-parallel

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There are 2 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	n	31	33	first strand
Strand 2	n	131	133	parallel

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There are 4 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	n	74	76	first strand
Strand 2	n	63	68	anti-parallel
Strand 3	n	51	56	anti-parallel
Strand 4	n	107	110	anti-parallel

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There are 4 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	n	143	147	first strand
Strand 2	n	159	169	anti-parallel
Strand 3	n	207	216	anti-parallel
Strand 4	n	189	191	anti-parallel

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There are 4 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	n	143	147	first strand
Strand 2	n	159	169	anti-parallel
Strand 3	n	207	216	anti-parallel
Strand 4	n	196	197	anti-parallel

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There are 4 strands in AB9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	n	183	184	first strand
Strand 2	n	174	180	anti-parallel
Strand 3	n	226	233	anti-parallel
Strand 4	n	253	259	anti-parallel

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There are 4 strands in AC1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	e	39	40	first strand
Strand 2	e	44	48	anti-parallel
Strand 3	e	81	85	anti-parallel
Strand 4	e	76	77	anti-parallel

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There are 4 strands in AC2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	3	6	first strand
Strand 2	H	18	25	anti-parallel
Strand 3	H	78	83	anti-parallel
Strand 4	H	68	73	anti-parallel

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There are 6 strands in AC3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	10	12	first strand
Strand 2	H	113	117	parallel
Strand 3	H	93	100	anti-parallel
Strand 4	H	34	39	anti-parallel
Strand 5	H	45	51	anti-parallel
Strand 6	H	58	60	anti-parallel

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There are 4 strands in AC4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	10	12	first strand
Strand 2	H	113	117	parallel
Strand 3	H	93	100	anti-parallel
Strand 4	H	105	108	anti-parallel

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There are 4 strands in AC5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	126	130	first strand
Strand 2	H	142	151	anti-parallel
Strand 3	H	185	189	anti-parallel
Strand 4	H	169	171	anti-parallel

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There are 3 strands in AC6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	126	130	first strand
Strand 2	H	142	151	anti-parallel
Strand 3	H	181	183	anti-parallel

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There are 3 strands in AC7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	159	160	first strand
Strand 2	H	200	205	anti-parallel
Strand 3	H	210	215	anti-parallel

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There are 4 strands in AC8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	5	7	first strand
Strand 2	L	18	24	anti-parallel
Strand 3	L	69	75	anti-parallel
Strand 4	L	61	66	anti-parallel

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There are 5 strands in AC9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	10	13	first strand
Strand 2	L	101	105	parallel
Strand 3	L	84	89	anti-parallel
Strand 4	L	33	37	anti-parallel
Strand 5	L	44	47	anti-parallel

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There are 4 strands in AD1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	10	13	first strand
Strand 2	L	101	105	parallel
Strand 3	L	84	89	anti-parallel
Strand 4	L	96	97	anti-parallel

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There are 4 strands in AD2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	113	117	first strand
Strand 2	L	128	136	anti-parallel
Strand 3	L	174	181	anti-parallel
Strand 4	L	158	162	anti-parallel

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There are 3 strands in AD3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	144	149	first strand
Strand 2	L	190	196	anti-parallel
Strand 3	L	207	209	anti-parallel

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There are 4 strands in AD4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	3	6	first strand
Strand 2	S	18	25	anti-parallel
Strand 3	S	78	83	anti-parallel
Strand 4	S	68	73	anti-parallel

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There are 6 strands in AD5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	10	12	first strand
Strand 2	S	113	117	parallel
Strand 3	S	92	100	anti-parallel
Strand 4	S	33	39	anti-parallel
Strand 5	S	45	51	anti-parallel
Strand 6	S	58	60	anti-parallel

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There are 4 strands in AD6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	10	12	first strand
Strand 2	S	113	117	parallel
Strand 3	S	92	100	anti-parallel
Strand 4	S	105	106	anti-parallel

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There are 4 strands in AD7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	126	130	first strand
Strand 2	S	142	151	anti-parallel
Strand 3	S	185	189	anti-parallel
Strand 4	S	169	171	anti-parallel

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There are 3 strands in AD8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	126	130	first strand
Strand 2	S	142	151	anti-parallel
Strand 3	S	181	183	anti-parallel

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There are 3 strands in AD9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	S	157	160	first strand
Strand 2	S	200	205	anti-parallel
Strand 3	S	210	215	anti-parallel

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There are 4 strands in AE1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	T	4	7	first strand
Strand 2	T	18	25	anti-parallel
Strand 3	T	69	75	anti-parallel
Strand 4	T	61	66	anti-parallel

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There are 6 strands in AE2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	T	10	13	first strand
Strand 2	T	101	105	parallel
Strand 3	T	84	89	anti-parallel
Strand 4	T	33	37	anti-parallel
Strand 5	T	44	48	anti-parallel
Strand 6	T	52	53	anti-parallel

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There are 4 strands in AE3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	T	10	13	first strand
Strand 2	T	101	105	parallel
Strand 3	T	84	89	anti-parallel
Strand 4	T	96	97	anti-parallel

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There are 4 strands in AE4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	T	113	117	first strand
Strand 2	T	128	138	anti-parallel
Strand 3	T	172	181	anti-parallel
Strand 4	T	158	162	anti-parallel

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There are 4 strands in AE5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	T	152	153	first strand
Strand 2	T	144	149	anti-parallel
Strand 3	T	191	196	anti-parallel
Strand 4	T	204	208	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: 9IRS

Analysis of interatomic Contacts of Structural Units in PDB entry:
9IRS