Analysis of interatomic Contacts of Structural Units in PDB entry:
1PKU

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 1PKU entry

There are 12 chains in PDB entry 1PKU (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ARG 3	GLU 151
B	ARG 3	GLU 151
C	ARG 3	GLU 151
D	ARG 3	GLU 151
E	ARG 3	GLU 151
F	ARG 3	GLU 151
G	ARG 3	GLU 151
H	ARG 3	GLU 151
I	ARG 3	GLU 151
J	ARG 3	GLU 151
K	ARG 3	GLU 151
L	ARG 3	GLU 151

There are125 helices in PDB entry 1PKU. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	12	18	Right-handed alpha
Helix 2	2	A	20	32	Right-handed alpha
Helix 3	3	A	44	52	Right-handed alpha
Helix 4	4	A	53	56	Right-handed 310
Helix 5	5	A	60	70	Right-handed alpha
Helix 6	6	A	82	92	Right-handed alpha
Helix 7	7	A	95	99	Right-handed 310
Helix 8	8	A	103	109	Right-handed alpha
Helix 9	9	A	111	115	Right-handed 310
Helix 10	10	A	122	134	Right-handed alpha
Helix 11	11	A	145	150	Right-handed alpha
Helix 12	12	B	12	18	Right-handed alpha
Helix 13	13	B	20	32	Right-handed alpha
Helix 14	14	B	44	52	Right-handed alpha
Helix 15	15	B	53	56	Right-handed 310
Helix 16	16	B	60	69	Right-handed alpha
Helix 17	17	B	82	92	Right-handed alpha
Helix 18	18	B	103	109	Right-handed alpha
Helix 19	19	B	111	115	Right-handed 310
Helix 20	20	B	122	134	Right-handed alpha
Helix 21	21	B	145	150	Right-handed alpha
Helix 22	22	C	12	18	Right-handed alpha
Helix 23	23	C	20	32	Right-handed alpha
Helix 24	24	C	44	52	Right-handed alpha
Helix 25	25	C	53	56	Right-handed 310
Helix 26	26	C	60	70	Right-handed alpha
Helix 27	27	C	82	92	Right-handed alpha
Helix 28	28	C	95	99	Right-handed 310
Helix 29	29	C	103	109	Right-handed alpha
Helix 30	30	C	111	115	Right-handed 310
Helix 31	31	C	122	134	Right-handed alpha
Helix 32	32	C	145	150	Right-handed alpha
Helix 33	33	D	12	18	Right-handed alpha
Helix 34	34	D	20	32	Right-handed alpha
Helix 35	35	D	44	52	Right-handed alpha
Helix 36	36	D	53	56	Right-handed 310
Helix 37	37	D	60	69	Right-handed alpha
Helix 38	38	D	82	92	Right-handed alpha
Helix 39	39	D	95	99	Right-handed 310
Helix 40	40	D	103	109	Right-handed alpha
Helix 41	41	D	122	134	Right-handed alpha
Helix 42	42	D	145	149	Right-handed 310
Helix 43	43	E	12	18	Right-handed alpha
Helix 44	44	E	20	32	Right-handed alpha
Helix 45	45	E	44	53	Right-handed alpha
Helix 46	46	E	54	56	Right-handed 310
Helix 47	47	E	60	70	Right-handed alpha
Helix 48	48	E	82	92	Right-handed alpha
Helix 49	49	E	95	99	Right-handed 310
Helix 50	50	E	103	109	Right-handed alpha
Helix 51	51	E	111	115	Right-handed 310
Helix 52	52	E	122	134	Right-handed alpha
Helix 53	53	E	145	150	Right-handed alpha
Helix 54	54	F	12	18	Right-handed alpha
Helix 55	55	F	20	32	Right-handed alpha
Helix 56	56	F	44	52	Right-handed alpha
Helix 57	57	F	53	56	Right-handed 310
Helix 58	58	F	60	70	Right-handed alpha
Helix 59	59	F	82	92	Right-handed alpha
Helix 60	60	F	103	109	Right-handed alpha
Helix 61	61	F	111	115	Right-handed 310
Helix 62	62	F	122	134	Right-handed alpha
Helix 63	63	F	145	150	Right-handed alpha
Helix 64	64	G	12	18	Right-handed alpha
Helix 65	65	G	20	32	Right-handed alpha
Helix 66	66	G	44	52	Right-handed alpha
Helix 67	67	G	53	56	Right-handed 310
Helix 68	68	G	60	69	Right-handed alpha
Helix 69	69	G	82	92	Right-handed alpha
Helix 70	70	G	103	109	Right-handed alpha
Helix 71	71	G	111	115	Right-handed 310
Helix 72	72	G	122	134	Right-handed alpha
Helix 73	73	G	145	149	Right-handed 310
Helix 74	74	H	12	18	Right-handed alpha
Helix 75	75	H	20	32	Right-handed alpha
Helix 76	76	H	44	52	Right-handed alpha
Helix 77	77	H	53	55	Right-handed 310
Helix 78	78	H	60	69	Right-handed alpha
Helix 79	79	H	82	92	Right-handed alpha
Helix 80	80	H	95	99	Right-handed 310
Helix 81	81	H	103	109	Right-handed alpha
Helix 82	82	H	111	115	Right-handed 310
Helix 83	83	H	122	134	Right-handed alpha
Helix 84	84	H	145	150	Right-handed alpha
Helix 85	85	I	12	18	Right-handed alpha
Helix 86	86	I	20	32	Right-handed alpha
Helix 87	87	I	44	52	Right-handed alpha
Helix 88	88	I	53	56	Right-handed 310
Helix 89	89	I	60	69	Right-handed alpha
Helix 90	90	I	82	92	Right-handed alpha
Helix 91	91	I	103	109	Right-handed alpha
Helix 92	92	I	111	115	Right-handed 310
Helix 93	93	I	122	134	Right-handed alpha
Helix 94	94	I	145	150	Right-handed alpha
Helix 95	95	J	12	18	Right-handed alpha
Helix 96	96	J	20	32	Right-handed alpha
Helix 97	97	J	44	53	Right-handed alpha
Helix 98	98	J	54	56	Right-handed 310
Helix 99	99	J	60	69	Right-handed alpha
Helix 100	100	J	82	92	Right-handed alpha
Helix 101	101	J	103	109	Right-handed alpha
Helix 102	102	J	111	115	Right-handed 310
Helix 103	103	J	122	134	Right-handed alpha
Helix 104	104	J	145	150	Right-handed alpha
Helix 105	105	K	12	18	Right-handed alpha
Helix 106	106	K	20	32	Right-handed alpha
Helix 107	107	K	44	52	Right-handed alpha
Helix 108	108	K	53	56	Right-handed 310
Helix 109	109	K	60	69	Right-handed alpha
Helix 110	110	K	82	92	Right-handed alpha
Helix 111	111	K	95	99	Right-handed 310
Helix 112	112	K	103	109	Right-handed alpha
Helix 113	113	K	122	134	Right-handed alpha
Helix 114	114	K	145	150	Right-handed alpha
Helix 115	115	L	12	18	Right-handed alpha
Helix 116	116	L	20	32	Right-handed alpha
Helix 117	117	L	44	52	Right-handed alpha
Helix 118	118	L	53	56	Right-handed 310
Helix 119	119	L	60	69	Right-handed alpha
Helix 120	120	L	82	92	Right-handed alpha
Helix 121	121	L	95	99	Right-handed 310
Helix 122	122	L	103	109	Right-handed alpha
Helix 123	123	L	111	115	Right-handed 310
Helix 124	124	L	122	134	Right-handed alpha
Helix 125	125	L	145	150	Right-handed alpha

There are 12 sheets in PDB entry 1PKU. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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	34	41	first strand
Strand 2	A	73	79	anti-parallel
Strand 3	A	6	11	anti-parallel
Strand 4	A	117	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	34	41	first strand
Strand 2	B	73	79	anti-parallel
Strand 3	B	6	11	anti-parallel
Strand 4	B	117	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	34	41	first strand
Strand 2	C	73	79	anti-parallel
Strand 3	C	6	11	anti-parallel
Strand 4	C	117	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	34	41	first strand
Strand 2	D	73	80	anti-parallel
Strand 3	D	5	11	anti-parallel
Strand 4	D	117	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	34	41	first strand
Strand 2	E	73	79	anti-parallel
Strand 3	E	6	11	anti-parallel
Strand 4	E	117	119	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	F	34	41	first strand
Strand 2	F	73	79	anti-parallel
Strand 3	F	6	11	anti-parallel
Strand 4	F	117	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	34	41	first strand
Strand 2	G	73	80	anti-parallel
Strand 3	G	5	11	anti-parallel
Strand 4	G	117	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	34	41	first strand
Strand 2	H	73	79	anti-parallel
Strand 3	H	6	11	anti-parallel
Strand 4	H	117	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	34	41	first strand
Strand 2	I	73	79	anti-parallel
Strand 3	I	6	11	anti-parallel
Strand 4	I	117	119	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	J	34	41	first strand
Strand 2	J	73	79	anti-parallel
Strand 3	J	6	11	anti-parallel
Strand 4	J	117	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	34	41	first strand
Strand 2	K	73	81	anti-parallel
Strand 3	K	4	11	anti-parallel
Strand 4	K	117	119	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	34	41	first strand
Strand 2	L	73	80	anti-parallel
Strand 3	L	5	11	anti-parallel
Strand 4	L	117	119	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: 1PKU

Analysis of interatomic Contacts of Structural Units in PDB entry:
1PKU