Analysis of interatomic Contacts of Structural Units in PDB entry:
3E20

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 3E20 entry

There are 8 chains in PDB entry 3E20 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 467	ASP 662
C	THR 4	GLU 427
D	ALA 467	ASP 662
B	THR 4	GLU 427
E	ALA 467	ASP 662
H	ALA 5	GLU 427
J	ALA 467	ASP 662
K	ALA 5	GLU 427

There are 38 helices in PDB entry 3E20. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	637	641	Right-handed alpha
Helix 2	2	C	4	22	Right-handed alpha
Helix 3	3	C	41	56	Right-handed alpha
Helix 4	4	C	61	80	Right-handed alpha
Helix 5	5	C	99	103	Right-handed 310
Helix 6	6	C	132	137	Right-handed 310
Helix 7	7	C	274	293	Right-handed alpha
Helix 8	8	C	301	311	Right-handed alpha
Helix 9	9	C	373	381	Right-handed alpha
Helix 10	10	C	382	385	Right-handed 310
Helix 11	11	C	395	404	Right-handed alpha
Helix 12	12	D	637	641	Right-handed alpha
Helix 13	13	B	4	22	Right-handed alpha
Helix 14	14	B	41	56	Right-handed alpha
Helix 15	15	B	61	80	Right-handed alpha
Helix 16	16	B	99	103	Right-handed 310
Helix 17	17	B	132	137	Right-handed 310
Helix 18	18	B	274	293	Right-handed alpha
Helix 19	19	B	301	311	Right-handed alpha
Helix 20	20	B	373	381	Right-handed alpha
Helix 21	21	B	382	385	Right-handed 310
Helix 22	22	B	395	404	Right-handed alpha
Helix 23	23	E	637	641	Right-handed alpha
Helix 24	24	H	7	19	Right-handed alpha
Helix 25	25	H	130	135	Right-handed alpha
Helix 26	26	H	274	293	Right-handed alpha
Helix 27	27	H	301	311	Right-handed alpha
Helix 28	28	H	373	381	Right-handed alpha
Helix 29	29	H	382	385	Right-handed 310
Helix 30	30	H	395	404	Right-handed alpha
Helix 31	31	J	637	641	Right-handed alpha
Helix 32	32	K	7	16	Right-handed alpha
Helix 33	33	K	130	134	Right-handed 310
Helix 34	34	K	274	293	Right-handed alpha
Helix 35	35	K	301	311	Right-handed alpha
Helix 36	36	K	373	381	Right-handed alpha
Helix 37	37	K	382	385	Right-handed 310
Helix 38	38	K	395	406	Right-handed alpha

There are 24 sheets in PDB entry 3E20. 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 8 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	520	521	first strand
Strand 2	A	506	514	anti-parallel
Strand 3	A	529	535	anti-parallel
Strand 4	A	482	487	anti-parallel
Strand 5	A	470	477	anti-parallel
Strand 6	A	546	549	anti-parallel
Strand 7	A	497	502	anti-parallel
Strand 8	A	506	514	anti-parallel

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There are 2 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	493	494	first strand
Strand 2	A	523	524	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	A	556	566	first strand
Strand 2	A	618	630	anti-parallel
Strand 3	A	587	599	anti-parallel
Strand 4	A	578	582	anti-parallel
Strand 5	A	642	647	anti-parallel
Strand 6	A	650	660	anti-parallel
Strand 7	A	556	566	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	C	105	111	first strand
Strand 2	C	91	97	anti-parallel
Strand 3	C	31	35	anti-parallel
Strand 4	C	121	125	anti-parallel

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There are 3 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	388	391	first strand
Strand 2	C	316	320	parallel
Strand 3	C	408	411	anti-parallel

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There are 3 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	341	342	first strand
Strand 2	C	326	327	anti-parallel
Strand 3	C	371	372	anti-parallel

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There are 8 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	520	521	first strand
Strand 2	D	506	514	anti-parallel
Strand 3	D	529	535	anti-parallel
Strand 4	D	482	487	anti-parallel
Strand 5	D	470	477	anti-parallel
Strand 6	D	546	549	anti-parallel
Strand 7	D	497	502	anti-parallel
Strand 8	D	506	514	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	D	493	494	first strand
Strand 2	D	523	524	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	D	556	566	first strand
Strand 2	D	618	630	anti-parallel
Strand 3	D	587	599	anti-parallel
Strand 4	D	578	582	anti-parallel
Strand 5	D	642	647	anti-parallel
Strand 6	D	650	660	anti-parallel
Strand 7	D	556	566	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	105	111	first strand
Strand 2	B	91	97	anti-parallel
Strand 3	B	31	35	anti-parallel
Strand 4	B	121	125	anti-parallel

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There are 3 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	388	391	first strand
Strand 2	B	316	320	parallel
Strand 3	B	408	411	anti-parallel

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There are 3 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	341	342	first strand
Strand 2	B	326	327	anti-parallel
Strand 3	B	371	372	anti-parallel

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There are 8 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	520	521	first strand
Strand 2	E	506	514	anti-parallel
Strand 3	E	529	535	anti-parallel
Strand 4	E	482	487	anti-parallel
Strand 5	E	470	478	anti-parallel
Strand 6	E	546	548	anti-parallel
Strand 7	E	498	502	anti-parallel
Strand 8	E	506	514	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	493	494	first strand
Strand 2	E	523	524	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	E	556	566	first strand
Strand 2	E	618	630	anti-parallel
Strand 3	E	587	598	anti-parallel
Strand 4	E	578	582	anti-parallel
Strand 5	E	642	646	anti-parallel
Strand 6	E	651	660	anti-parallel
Strand 7	E	556	566	anti-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	34	36	first strand
Strand 2	H	90	92	anti-parallel

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There are 3 strands in Q sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	388	391	first strand
Strand 2	H	314	320	parallel
Strand 3	H	408	412	anti-parallel

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There are 3 strands in R sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	341	342	first strand
Strand 2	H	326	327	anti-parallel
Strand 3	H	371	372	anti-parallel

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There are 8 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	520	521	first strand
Strand 2	J	506	514	anti-parallel
Strand 3	J	529	535	anti-parallel
Strand 4	J	482	487	anti-parallel
Strand 5	J	470	478	anti-parallel
Strand 6	J	546	548	anti-parallel
Strand 7	J	498	502	anti-parallel
Strand 8	J	506	514	anti-parallel

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There are 2 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	493	494	first strand
Strand 2	J	523	524	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	J	556	566	first strand
Strand 2	J	618	630	anti-parallel
Strand 3	J	587	598	anti-parallel
Strand 4	J	578	582	anti-parallel
Strand 5	J	642	646	anti-parallel
Strand 6	J	651	660	anti-parallel
Strand 7	J	556	566	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	K	35	36	first strand
Strand 2	K	90	91	anti-parallel

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There are 3 strands in W sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	388	391	first strand
Strand 2	K	314	320	parallel
Strand 3	K	408	412	anti-parallel

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There are 3 strands in X sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	341	342	first strand
Strand 2	K	326	327	anti-parallel
Strand 3	K	371	372	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: 3E20

Analysis of interatomic Contacts of Structural Units in PDB entry:
3E20