Analysis of interatomic Contacts of Structural Units in PDB entry:
2CX4

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 2CX4 entry

There are 8 chains in PDB entry 2CX4 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLY 3	VAL 163
B	LEU 4	VAL 163
C	GLY 3	VAL 163
D	LEU 4	VAL 163
E	GLY 3	VAL 163
F	LEU 4	VAL 163
G	GLY 3	VAL 163
H	LEU 4	VAL 163

There are 45 helices in PDB entry 2CX4. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	26	31	Right-handed alpha
Helix 2	2	A	46	59	Right-handed alpha
Helix 3	3	A	77	89	Right-handed alpha
Helix 4	4	A	100	106	Right-handed alpha
Helix 5	5	A	147	160	Right-handed alpha
Helix 6	6	B	26	31	Right-handed alpha
Helix 7	7	B	59	66	Right-handed 310
Helix 8	8	B	77	88	Right-handed alpha
Helix 9	9	B	100	106	Right-handed alpha
Helix 10	10	B	147	162	Right-handed alpha
Helix 11	11	C	26	31	Right-handed alpha
Helix 12	12	C	59	65	Right-handed 310
Helix 13	13	C	77	88	Right-handed alpha
Helix 14	14	C	101	106	Right-handed alpha
Helix 15	15	C	147	160	Right-handed alpha
Helix 16	16	D	26	32	Right-handed alpha
Helix 17	17	D	46	59	Right-handed alpha
Helix 18	18	D	59	64	Right-handed alpha
Helix 19	19	D	65	67	Right-handed 310
Helix 20	20	D	77	88	Right-handed alpha
Helix 21	21	D	101	106	Right-handed alpha
Helix 22	22	D	147	160	Right-handed alpha
Helix 23	23	E	26	31	Right-handed alpha
Helix 24	24	E	46	58	Right-handed alpha
Helix 25	25	E	59	64	Right-handed alpha
Helix 26	26	E	77	88	Right-handed alpha
Helix 27	27	E	100	106	Right-handed alpha
Helix 28	28	E	147	162	Right-handed alpha
Helix 29	29	F	26	32	Right-handed alpha
Helix 30	30	F	62	66	Right-handed 310
Helix 31	31	F	77	89	Right-handed alpha
Helix 32	32	F	100	106	Right-handed alpha
Helix 33	33	F	147	160	Right-handed alpha
Helix 34	34	G	26	32	Right-handed alpha
Helix 35	35	G	59	63	Right-handed 310
Helix 36	36	G	77	88	Right-handed alpha
Helix 37	37	G	101	106	Right-handed alpha
Helix 38	38	G	112	116	Right-handed 310
Helix 39	39	G	147	160	Right-handed alpha
Helix 40	40	H	26	31	Right-handed alpha
Helix 41	41	H	46	58	Right-handed alpha
Helix 42	42	H	59	64	Right-handed alpha
Helix 43	43	H	77	88	Right-handed alpha
Helix 44	44	H	101	106	Right-handed alpha
Helix 45	45	H	147	162	Right-handed alpha

There are 24 sheets in PDB entry 2CX4. 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,

There are 2 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	15	16	first strand
Strand 2	A	24	25	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	93	96	first strand
Strand 2	A	69	74	parallel
Strand 3	A	36	40	parallel
Strand 4	A	123	127	anti-parallel
Strand 5	A	133	138	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	109	113	first strand
Strand 2	A	116	120	anti-parallel

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There are 2 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	15	17	first strand
Strand 2	B	23	25	anti-parallel

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There are 5 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	93	96	first strand
Strand 2	B	69	74	parallel
Strand 3	B	36	40	parallel
Strand 4	B	122	127	anti-parallel
Strand 5	B	133	139	anti-parallel

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There are 2 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	15	17	first strand
Strand 2	C	23	25	anti-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	C	93	96	first strand
Strand 2	C	69	74	parallel
Strand 3	C	36	39	parallel
Strand 4	C	122	127	anti-parallel
Strand 5	C	133	139	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	109	110	first strand
Strand 2	C	119	120	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	D	15	17	first strand
Strand 2	D	23	25	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	94	96	first strand
Strand 2	D	69	74	parallel
Strand 3	D	36	40	parallel
Strand 4	D	123	127	anti-parallel
Strand 5	D	133	138	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	109	112	first strand
Strand 2	D	117	120	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	E	15	16	first strand
Strand 2	E	24	25	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	93	96	first strand
Strand 2	E	69	74	parallel
Strand 3	E	36	40	parallel
Strand 4	E	123	127	anti-parallel
Strand 5	E	133	138	anti-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	E	109	113	first strand
Strand 2	E	116	120	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	15	17	first strand
Strand 2	F	23	25	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	93	96	first strand
Strand 2	F	69	74	parallel
Strand 3	F	36	40	parallel
Strand 4	F	123	127	anti-parallel
Strand 5	F	133	135	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	F	48	50	first strand
Strand 2	F	53	55	anti-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	F	109	113	first strand
Strand 2	F	116	120	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	15	17	first strand
Strand 2	G	23	25	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	93	96	first strand
Strand 2	G	69	74	parallel
Strand 3	G	36	40	parallel
Strand 4	G	123	127	anti-parallel
Strand 5	G	133	135	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	48	50	first strand
Strand 2	G	53	55	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	15	17	first strand
Strand 2	H	23	25	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	93	96	first strand
Strand 2	H	69	74	parallel
Strand 3	H	36	40	parallel
Strand 4	H	123	127	anti-parallel
Strand 5	H	133	138	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	H	109	112	first strand
Strand 2	H	117	120	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: 2CX4

Analysis of interatomic Contacts of Structural Units in PDB entry:
2CX4