Analysis of interatomic Contacts of Structural Units in PDB entry:
3X1B

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 3X1B entry

There are 2 chains in PDB entry 3X1B (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	SER 22	GLN 521
B	SER 22	GLN 521

There are 27 helices in PDB entry 3X1B. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	75	79	Right-handed 310
Helix 2	2	A	94	98	Right-handed 310
Helix 3	3	A	135	140	Right-handed 310
Helix 4	4	A	154	158	Right-handed 310
Helix 5	5	A	162	164	Right-handed 310
Helix 6	6	A	291	295	Right-handed 310
Helix 7	7	A	323	327	Right-handed 310
Helix 8	8	A	372	379	Right-handed alpha
Helix 9	9	A	452	456	Right-handed 310
Helix 10	10	A	477	483	Right-handed alpha
Helix 11	11	A	495	500	Right-handed alpha
Helix 12	12	A	503	515	Right-handed alpha
Helix 13	13	A	517	521	Right-handed 310
Helix 14	14	B	75	79	Right-handed 310
Helix 15	15	B	94	98	Right-handed 310
Helix 16	16	B	135	140	Right-handed 310
Helix 17	17	B	154	158	Right-handed 310
Helix 18	18	B	162	164	Right-handed 310
Helix 19	19	B	291	295	Right-handed 310
Helix 20	20	B	323	327	Right-handed 310
Helix 21	21	B	372	379	Right-handed alpha
Helix 22	22	B	383	387	Right-handed 310
Helix 23	23	B	452	456	Right-handed 310
Helix 24	24	B	477	483	Right-handed alpha
Helix 25	25	B	495	500	Right-handed alpha
Helix 26	26	B	503	515	Right-handed alpha
Helix 27	27	B	517	521	Right-handed 310

There are 15 sheets in PDB entry 3X1B. 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,

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	43	48	first strand
Strand 2	A	26	36	anti-parallel
Strand 3	A	64	71	parallel
Strand 4	A	112	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	A	57	60	first strand
Strand 2	A	142	148	parallel
Strand 3	A	125	131	anti-parallel
Strand 4	A	84	87	anti-parallel

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There are 6 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	189	192	first strand
Strand 2	A	166	172	anti-parallel
Strand 3	A	216	223	parallel
Strand 4	A	264	270	anti-parallel
Strand 5	A	239	244	anti-parallel
Strand 6	A	247	254	anti-parallel

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There are 5 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	208	211	first strand
Strand 2	A	297	302	parallel
Strand 3	A	277	284	anti-parallel
Strand 4	A	230	234	anti-parallel
Strand 5	A	257	259	anti-parallel

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There are 2 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	287	289	first strand
Strand 2	B	287	289	anti-parallel

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There are 5 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	346	349	first strand
Strand 2	A	401	407	parallel
Strand 3	A	458	464	anti-parallel
Strand 4	A	426	430	anti-parallel
Strand 5	A	444	445	anti-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	A	352	354	first strand
Strand 2	A	359	361	anti-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	A	393	396	first strand
Strand 2	A	486	491	parallel
Strand 3	A	469	475	anti-parallel
Strand 4	A	418	421	anti-parallel
Strand 5	A	447	449	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	B	43	48	first strand
Strand 2	B	26	36	anti-parallel
Strand 3	B	64	71	parallel
Strand 4	B	113	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	B	57	60	first strand
Strand 2	B	142	148	parallel
Strand 3	B	125	131	anti-parallel
Strand 4	B	84	87	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	189	192	first strand
Strand 2	B	166	172	anti-parallel
Strand 3	B	216	223	parallel
Strand 4	B	264	270	anti-parallel
Strand 5	B	239	244	anti-parallel
Strand 6	B	247	254	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	208	211	first strand
Strand 2	B	297	302	parallel
Strand 3	B	277	284	anti-parallel
Strand 4	B	230	234	anti-parallel
Strand 5	B	257	259	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	B	346	349	first strand
Strand 2	B	401	407	parallel
Strand 3	B	458	464	anti-parallel
Strand 4	B	426	430	anti-parallel
Strand 5	B	444	445	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	B	352	354	first strand
Strand 2	B	359	361	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	393	396	first strand
Strand 2	B	486	491	parallel
Strand 3	B	469	475	anti-parallel
Strand 4	B	418	421	anti-parallel
Strand 5	B	447	449	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: 3X1B

Analysis of interatomic Contacts of Structural Units in PDB entry:
3X1B