Analysis of interatomic Contacts of Structural Units in PDB entry:
3K55

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 3K55 entry

There are 5 chains in PDB entry 3K55 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASP 7	LYS 286
B	ASP 7	LYS 286
C	ASP 7	LYS 286
D	ASP 7	LYS 286
E	ASP 7	GLU 138

There are 80 helices in PDB entry 3K55. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	29	40	Right-handed alpha
Helix 2	2	A	56	67	Right-handed alpha
Helix 3	3	A	161	180	Right-handed alpha
Helix 4	4	A	201	212	Right-handed alpha
Helix 5	5	A	230	237	Right-handed alpha
Helix 6	6	B	29	40	Right-handed alpha
Helix 7	7	B	56	67	Right-handed alpha
Helix 8	8	B	161	180	Right-handed alpha
Helix 9	9	B	201	212	Right-handed alpha
Helix 10	10	B	230	237	Right-handed alpha
Helix 11	11	C	29	40	Right-handed alpha
Helix 12	12	C	56	67	Right-handed alpha
Helix 13	13	C	161	180	Right-handed alpha
Helix 14	14	C	201	212	Right-handed alpha
Helix 15	15	C	230	237	Right-handed alpha
Helix 16	16	D	29	40	Right-handed alpha
Helix 17	17	D	56	67	Right-handed alpha
Helix 18	18	D	161	181	Right-handed alpha
Helix 19	19	D	201	212	Right-handed alpha
Helix 20	20	D	230	237	Right-handed alpha
Helix 21	21	E	29	40	Right-handed alpha
Helix 22	22	E	56	67	Right-handed alpha
Helix 23	23	E	161	180	Right-handed alpha
Helix 24	24	E	201	212	Right-handed alpha
Helix 25	25	E	230	237	Right-handed alpha
Helix 26	26	F	29	39	Right-handed alpha
Helix 27	27	F	56	67	Right-handed alpha
Helix 28	28	F	161	181	Right-handed alpha
Helix 29	29	F	201	212	Right-handed alpha
Helix 30	30	F	230	237	Right-handed alpha
Helix 31	31	G	29	40	Right-handed alpha
Helix 32	32	G	56	67	Right-handed alpha
Helix 33	33	G	161	180	Right-handed alpha
Helix 34	34	G	201	212	Right-handed alpha
Helix 35	35	G	230	237	Right-handed alpha
Helix 36	36	H	29	40	Right-handed alpha
Helix 37	37	H	56	67	Right-handed alpha
Helix 38	38	H	161	180	Right-handed alpha
Helix 39	39	H	201	212	Right-handed alpha
Helix 40	40	H	230	237	Right-handed alpha
Helix 41	41	I	29	40	Right-handed alpha
Helix 42	42	I	56	67	Right-handed alpha
Helix 43	43	I	161	181	Right-handed alpha
Helix 44	44	I	201	212	Right-handed alpha
Helix 45	45	I	230	237	Right-handed alpha
Helix 46	46	J	29	40	Right-handed alpha
Helix 47	47	J	56	67	Right-handed alpha
Helix 48	48	J	161	180	Right-handed alpha
Helix 49	49	J	201	212	Right-handed alpha
Helix 50	50	J	230	237	Right-handed alpha
Helix 51	51	K	29	40	Right-handed alpha
Helix 52	52	K	56	67	Right-handed alpha
Helix 53	53	K	161	180	Right-handed alpha
Helix 54	54	K	201	212	Right-handed alpha
Helix 55	55	K	230	237	Right-handed alpha
Helix 56	56	L	29	40	Right-handed alpha
Helix 57	57	L	56	67	Right-handed alpha
Helix 58	58	L	161	180	Right-handed alpha
Helix 59	59	L	201	212	Right-handed alpha
Helix 60	60	L	230	237	Right-handed alpha
Helix 61	61	M	29	40	Right-handed alpha
Helix 62	62	M	56	67	Right-handed alpha
Helix 63	63	M	161	180	Right-handed alpha
Helix 64	64	M	201	212	Right-handed alpha
Helix 65	65	M	230	237	Right-handed alpha
Helix 66	66	N	29	40	Right-handed alpha
Helix 67	67	N	56	67	Right-handed alpha
Helix 68	68	N	161	180	Right-handed alpha
Helix 69	69	N	201	212	Right-handed alpha
Helix 70	70	N	230	237	Right-handed alpha
Helix 71	71	O	29	40	Right-handed alpha
Helix 72	72	O	56	67	Right-handed alpha
Helix 73	73	O	161	180	Right-handed alpha
Helix 74	74	O	201	212	Right-handed alpha
Helix 75	75	O	230	237	Right-handed alpha
Helix 76	76	P	29	40	Right-handed alpha
Helix 77	77	P	56	67	Right-handed alpha
Helix 78	78	P	161	180	Right-handed alpha
Helix 79	79	P	201	212	Right-handed alpha
Helix 80	80	P	230	237	Right-handed alpha

There are 32 sheets in PDB entry 3K55. 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,

There are 7 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	73	74	first strand
Strand 2	A	103	106	anti-parallel
Strand 3	A	48	54	anti-parallel
Strand 4	A	12	19	parallel
Strand 5	B	281	285	anti-parallel
Strand 6	A	260	264	anti-parallel
Strand 7	A	217	220	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	87	90	first strand
Strand 2	A	110	117	parallel
Strand 3	A	131	139	anti-parallel
Strand 4	A	142	149	anti-parallel
Strand 5	A	189	194	parallel
Strand 6	A	246	250	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	73	74	first strand
Strand 2	B	103	106	anti-parallel
Strand 3	B	48	54	anti-parallel
Strand 4	B	12	19	parallel
Strand 5	A	280	285	anti-parallel
Strand 6	B	260	264	anti-parallel
Strand 7	B	217	220	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	87	90	first strand
Strand 2	B	110	117	parallel
Strand 3	B	131	139	anti-parallel
Strand 4	B	142	149	anti-parallel
Strand 5	B	189	194	parallel
Strand 6	B	246	250	anti-parallel

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There are 7 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	73	74	first strand
Strand 2	C	103	106	anti-parallel
Strand 3	C	48	54	anti-parallel
Strand 4	C	12	19	parallel
Strand 5	D	281	285	anti-parallel
Strand 6	C	260	264	anti-parallel
Strand 7	C	217	220	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	87	90	first strand
Strand 2	C	110	117	parallel
Strand 3	C	131	139	anti-parallel
Strand 4	C	142	149	anti-parallel
Strand 5	C	189	194	parallel
Strand 6	C	246	250	anti-parallel

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There are 7 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	73	74	first strand
Strand 2	D	103	106	anti-parallel
Strand 3	D	48	54	anti-parallel
Strand 4	D	12	19	parallel
Strand 5	C	281	285	anti-parallel
Strand 6	D	260	264	anti-parallel
Strand 7	D	217	220	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	87	90	first strand
Strand 2	D	110	117	parallel
Strand 3	D	131	139	anti-parallel
Strand 4	D	142	149	anti-parallel
Strand 5	D	189	194	parallel
Strand 6	D	246	250	anti-parallel

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There are 7 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	73	74	first strand
Strand 2	E	103	106	anti-parallel
Strand 3	E	48	54	anti-parallel
Strand 4	E	12	19	parallel
Strand 5	F	281	284	anti-parallel
Strand 6	E	261	264	anti-parallel
Strand 7	E	217	220	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	87	90	first strand
Strand 2	E	110	117	parallel
Strand 3	E	131	139	anti-parallel
Strand 4	E	142	149	anti-parallel
Strand 5	E	189	194	parallel
Strand 6	E	246	250	anti-parallel

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There are 7 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	73	74	first strand
Strand 2	F	103	106	anti-parallel
Strand 3	F	48	54	anti-parallel
Strand 4	F	12	19	parallel
Strand 5	E	281	285	anti-parallel
Strand 6	F	260	264	anti-parallel
Strand 7	F	217	220	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	87	90	first strand
Strand 2	F	110	117	parallel
Strand 3	F	131	139	anti-parallel
Strand 4	F	142	149	anti-parallel
Strand 5	F	189	194	parallel
Strand 6	F	246	250	anti-parallel

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There are 7 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	73	74	first strand
Strand 2	G	103	106	anti-parallel
Strand 3	G	48	54	anti-parallel
Strand 4	G	12	19	parallel
Strand 5	H	281	285	anti-parallel
Strand 6	G	260	264	anti-parallel
Strand 7	G	217	220	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	87	90	first strand
Strand 2	G	110	117	parallel
Strand 3	G	131	139	anti-parallel
Strand 4	G	142	149	anti-parallel
Strand 5	G	189	194	parallel
Strand 6	G	246	250	anti-parallel

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There are 7 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	73	74	first strand
Strand 2	H	103	106	anti-parallel
Strand 3	H	48	54	anti-parallel
Strand 4	H	12	19	parallel
Strand 5	G	281	285	anti-parallel
Strand 6	H	260	264	anti-parallel
Strand 7	H	217	220	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	87	90	first strand
Strand 2	H	110	117	parallel
Strand 3	H	131	139	anti-parallel
Strand 4	H	142	149	anti-parallel
Strand 5	H	189	194	parallel
Strand 6	H	246	250	anti-parallel

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There are 7 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	73	74	first strand
Strand 2	I	103	106	anti-parallel
Strand 3	I	48	54	anti-parallel
Strand 4	I	12	19	parallel
Strand 5	J	281	285	anti-parallel
Strand 6	I	260	264	anti-parallel
Strand 7	I	217	220	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	87	90	first strand
Strand 2	I	110	117	parallel
Strand 3	I	131	139	anti-parallel
Strand 4	I	142	149	anti-parallel
Strand 5	I	189	194	parallel
Strand 6	I	246	250	anti-parallel

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There are 7 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	73	74	first strand
Strand 2	J	103	106	anti-parallel
Strand 3	J	48	54	anti-parallel
Strand 4	J	12	19	parallel
Strand 5	I	281	284	anti-parallel
Strand 6	J	261	264	anti-parallel
Strand 7	J	217	220	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	87	90	first strand
Strand 2	J	110	117	parallel
Strand 3	J	131	139	anti-parallel
Strand 4	J	142	149	anti-parallel
Strand 5	J	189	194	parallel
Strand 6	J	246	250	anti-parallel

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There are 7 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	73	74	first strand
Strand 2	K	103	106	anti-parallel
Strand 3	K	48	54	anti-parallel
Strand 4	K	12	19	parallel
Strand 5	L	281	285	anti-parallel
Strand 6	K	260	264	anti-parallel
Strand 7	K	217	220	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	87	90	first strand
Strand 2	K	110	117	parallel
Strand 3	K	131	139	anti-parallel
Strand 4	K	142	149	anti-parallel
Strand 5	K	189	194	parallel
Strand 6	K	246	250	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	73	74	first strand
Strand 2	L	103	106	anti-parallel
Strand 3	L	48	54	anti-parallel
Strand 4	L	12	19	parallel
Strand 5	K	281	285	anti-parallel
Strand 6	L	260	264	anti-parallel
Strand 7	L	217	220	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	87	90	first strand
Strand 2	L	110	117	parallel
Strand 3	L	131	139	anti-parallel
Strand 4	L	142	149	anti-parallel
Strand 5	L	189	194	parallel
Strand 6	L	246	250	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	73	74	first strand
Strand 2	M	103	106	anti-parallel
Strand 3	M	48	54	anti-parallel
Strand 4	M	12	19	parallel
Strand 5	N	281	285	anti-parallel
Strand 6	M	260	264	anti-parallel
Strand 7	M	217	220	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	87	90	first strand
Strand 2	M	110	117	parallel
Strand 3	M	131	139	anti-parallel
Strand 4	M	142	149	anti-parallel
Strand 5	M	189	194	parallel
Strand 6	M	246	250	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	73	74	first strand
Strand 2	N	103	106	anti-parallel
Strand 3	N	48	54	anti-parallel
Strand 4	N	12	19	parallel
Strand 5	M	281	285	anti-parallel
Strand 6	N	260	264	anti-parallel
Strand 7	N	217	220	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	N	87	90	first strand
Strand 2	N	110	117	parallel
Strand 3	N	131	139	anti-parallel
Strand 4	N	142	149	anti-parallel
Strand 5	N	189	194	parallel
Strand 6	N	246	250	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	73	74	first strand
Strand 2	O	103	106	anti-parallel
Strand 3	O	48	54	anti-parallel
Strand 4	O	12	19	parallel
Strand 5	P	281	285	anti-parallel
Strand 6	O	260	264	anti-parallel
Strand 7	O	217	220	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	O	87	90	first strand
Strand 2	O	110	117	parallel
Strand 3	O	131	139	anti-parallel
Strand 4	O	142	149	anti-parallel
Strand 5	O	189	194	parallel
Strand 6	O	246	250	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	73	74	first strand
Strand 2	P	103	106	anti-parallel
Strand 3	P	48	54	anti-parallel
Strand 4	P	11	19	parallel
Strand 5	O	281	285	anti-parallel
Strand 6	P	260	264	anti-parallel
Strand 7	P	217	220	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	87	90	first strand
Strand 2	P	110	117	parallel
Strand 3	P	131	139	anti-parallel
Strand 4	P	142	149	anti-parallel
Strand 5	P	189	194	parallel
Strand 6	P	246	250	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: 3K55

Analysis of interatomic Contacts of Structural Units in PDB entry:
3K55