Analysis of interatomic Contacts of Structural Units in PDB entry:
3X2R

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 3X2R entry

There are 7 chains in PDB entry 3X2R (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
D	LYS 48	GLY 250
A	PRO 43	TRP 252
B	LYS 48	LEU 251
C	HIS 41	TRP 252
E	HIS 41	TRP 252
F	LYS 48	GLY 250
G	ILE 49	MET 228

There are 27 helices in PDB entry 3X2R. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	D	81	90	Right-handed alpha
Helix 2	2	D	100	115	Right-handed alpha
Helix 3	3	D	226	248	Right-handed alpha
Helix 4	4	A	81	90	Right-handed alpha
Helix 5	5	A	100	115	Right-handed alpha
Helix 6	6	A	226	248	Right-handed alpha
Helix 7	7	B	81	90	Right-handed alpha
Helix 8	8	B	100	115	Right-handed alpha
Helix 9	9	B	226	248	Right-handed alpha
Helix 10	10	C	81	90	Right-handed alpha
Helix 11	11	C	100	115	Right-handed alpha
Helix 12	12	C	226	248	Right-handed alpha
Helix 13	13	E	81	90	Right-handed alpha
Helix 14	14	E	100	115	Right-handed alpha
Helix 15	15	E	226	248	Right-handed alpha
Helix 16	16	F	81	90	Right-handed alpha
Helix 17	17	F	100	115	Right-handed alpha
Helix 18	18	F	226	248	Right-handed alpha
Helix 19	19	G	81	90	Right-handed alpha
Helix 20	20	G	100	115	Right-handed alpha
Helix 21	21	G	226	248	Right-handed alpha
Helix 22	22	H	81	90	Right-handed alpha
Helix 23	23	H	100	115	Right-handed alpha
Helix 24	24	H	226	248	Right-handed alpha
Helix 25	25	I	81	90	Right-handed alpha
Helix 26	26	I	100	115	Right-handed alpha
Helix 27	27	I	226	248	Right-handed alpha

There are 17 sheets in PDB entry 3X2R. 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,

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	D	94	95	first strand
Strand 2	D	50	52	parallel
Strand 3	D	136	146	parallel
Strand 4	D	57	58	parallel

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There are 9 strands in B sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	136	146	first strand
Strand 2	D	160	180	anti-parallel
Strand 3	D	150	158	anti-parallel
Strand 4	C	214	224	anti-parallel
Strand 5	C	186	208	anti-parallel
Strand 6	C	160	180	anti-parallel
Strand 7	C	136	146	anti-parallel
Strand 8	C	50	52	parallel
Strand 9	C	94	95	parallel

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There are 15 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	160	180	first strand
Strand 2	D	186	208	anti-parallel
Strand 3	D	214	224	anti-parallel
Strand 4	F	150	158	anti-parallel
Strand 5	F	160	180	anti-parallel
Strand 6	F	186	208	anti-parallel
Strand 7	F	214	224	anti-parallel
Strand 8	H	150	158	anti-parallel
Strand 9	H	160	180	anti-parallel
Strand 10	H	186	208	anti-parallel
Strand 11	H	214	224	anti-parallel
Strand 12	E	150	158	anti-parallel
Strand 13	E	160	180	anti-parallel
Strand 14	E	136	146	anti-parallel
Strand 15	E	57	58	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	A	94	95	first strand
Strand 2	A	50	52	parallel
Strand 3	A	136	146	parallel
Strand 4	A	57	58	parallel

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There are 9 strands in E sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	136	146	first strand
Strand 2	A	160	180	anti-parallel
Strand 3	A	150	158	anti-parallel
Strand 4	B	214	224	anti-parallel
Strand 5	B	186	208	anti-parallel
Strand 6	B	160	180	anti-parallel
Strand 7	B	136	146	anti-parallel
Strand 8	B	50	52	parallel
Strand 9	B	94	95	parallel

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There are 12 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	160	180	first strand
Strand 2	A	186	208	anti-parallel
Strand 3	A	214	224	anti-parallel
Strand 4	I	150	158	anti-parallel
Strand 5	I	160	180	anti-parallel
Strand 6	I	186	207	anti-parallel
Strand 7	I	215	224	anti-parallel
Strand 8	G	150	158	anti-parallel
Strand 9	G	160	180	anti-parallel
Strand 10	G	136	146	anti-parallel
Strand 11	G	50	52	parallel
Strand 12	G	94	95	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	57	58	first strand
Strand 2	B	136	146	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	160	180	first strand
Strand 2	B	150	158	anti-parallel
Strand 3	E	214	224	anti-parallel
Strand 4	E	186	208	anti-parallel
Strand 5	E	160	180	anti-parallel

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There are 3 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	94	95	first strand
Strand 2	E	50	52	parallel
Strand 3	E	136	146	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	57	58	first strand
Strand 2	C	136	146	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	160	180	first strand
Strand 2	C	150	158	anti-parallel
Strand 3	G	214	224	anti-parallel
Strand 4	G	186	208	anti-parallel
Strand 5	G	160	180	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	F	94	95	first strand
Strand 2	F	50	52	parallel
Strand 3	F	136	146	parallel
Strand 4	F	57	58	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	136	146	first strand
Strand 2	F	160	180	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	G	57	58	first strand
Strand 2	G	136	146	parallel

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There are 4 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	94	95	first strand
Strand 2	H	50	52	parallel
Strand 3	H	136	146	parallel
Strand 4	H	57	58	parallel

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There are 2 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	136	146	first strand
Strand 2	H	160	180	anti-parallel

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There are 4 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	94	95	first strand
Strand 2	I	50	52	parallel
Strand 3	I	136	146	parallel
Strand 4	I	57	58	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: 3X2R

Analysis of interatomic Contacts of Structural Units in PDB entry:
3X2R