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

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 3ALX entry

There are 4 chains in PDB entry 3ALX (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	CYS 188	GLU 139
B	CYS 188	GLN 140
C	CYS 188	GLU 139
D	PRO 191	GLU 139

There are 21 helices in PDB entry 3ALX. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	204	212	Right-handed alpha
Helix 2	2	A	373	388	Right-handed alpha
Helix 3	3	A	390	395	Right-handed alpha
Helix 4	4	A	399	404	Right-handed alpha
Helix 5	5	A	111	115	Right-handed 310
Helix 6	6	B	204	212	Right-handed alpha
Helix 7	7	B	373	377	Right-handed 310
Helix 8	8	B	378	387	Right-handed alpha
Helix 9	9	B	391	395	Right-handed 310
Helix 10	10	B	399	404	Right-handed alpha
Helix 11	11	B	111	115	Right-handed 310
Helix 12	12	C	204	213	Right-handed alpha
Helix 13	13	C	373	386	Right-handed alpha
Helix 14	14	C	399	404	Right-handed alpha
Helix 15	15	C	100	103	Right-handed 310
Helix 16	16	C	111	115	Right-handed 310
Helix 17	17	D	204	212	Right-handed alpha
Helix 18	18	D	378	387	Right-handed alpha
Helix 19	19	D	390	395	Right-handed alpha
Helix 20	20	D	399	404	Right-handed alpha
Helix 21	21	D	459	463	Right-handed 310

There are 36 sheets in PDB entry 3ALX. 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, AG, AH, AI, AJ,

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	561	573	first strand
Strand 2	A	576	587	anti-parallel
Strand 3	A	593	605	anti-parallel
Strand 4	A	192	198	anti-parallel
Strand 5	A	127	131	anti-parallel
Strand 6	A	116	123	anti-parallel
Strand 7	A	62	67	anti-parallel
Strand 8	A	76	81	anti-parallel

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There are 7 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	561	573	first strand
Strand 2	A	576	587	anti-parallel
Strand 3	A	593	605	anti-parallel
Strand 4	A	192	198	anti-parallel
Strand 5	A	127	131	anti-parallel
Strand 6	A	116	123	anti-parallel
Strand 7	A	134	135	anti-parallel

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There are 4 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	216	224	first strand
Strand 2	A	227	235	anti-parallel
Strand 3	A	251	261	anti-parallel
Strand 4	A	269	279	anti-parallel

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There are 8 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	305	307	first strand
Strand 2	A	346	350	anti-parallel
Strand 3	A	362	371	anti-parallel
Strand 4	A	355	358	anti-parallel
Strand 5	A	286	292	parallel
Strand 6	A	295	301	anti-parallel
Strand 7	A	318	325	anti-parallel
Strand 8	A	333	338	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	A	305	307	first strand
Strand 2	A	346	350	anti-parallel
Strand 3	A	362	371	anti-parallel
Strand 4	A	409	416	anti-parallel
Strand 5	A	425	428	anti-parallel

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There are 4 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	442	445	first strand
Strand 2	A	452	456	anti-parallel
Strand 3	A	466	471	anti-parallel
Strand 4	A	477	482	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	484	486	first strand
Strand 2	A	495	497	anti-parallel

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There are 3 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	508	511	first strand
Strand 2	A	524	530	anti-parallel
Strand 3	A	515	516	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	A	508	511	first strand
Strand 2	A	524	530	anti-parallel
Strand 3	A	537	543	anti-parallel
Strand 4	A	551	556	anti-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	A	37	38	first strand
Strand 2	A	137	138	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	A	43	45	first strand
Strand 2	A	105	107	anti-parallel
Strand 3	A	96	97	anti-parallel

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There are 8 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	565	572	first strand
Strand 2	B	577	584	anti-parallel
Strand 3	B	595	605	anti-parallel
Strand 4	B	192	199	anti-parallel
Strand 5	B	127	131	anti-parallel
Strand 6	B	116	123	anti-parallel
Strand 7	B	134	138	anti-parallel
Strand 8	B	34	38	parallel

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There are 9 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	565	572	first strand
Strand 2	B	577	584	anti-parallel
Strand 3	B	595	605	anti-parallel
Strand 4	B	192	199	anti-parallel
Strand 5	B	127	131	anti-parallel
Strand 6	B	116	123	anti-parallel
Strand 7	B	61	67	anti-parallel
Strand 8	B	76	81	anti-parallel
Strand 9	B	90	91	anti-parallel

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There are 4 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	217	224	first strand
Strand 2	B	227	235	anti-parallel
Strand 3	B	251	261	anti-parallel
Strand 4	B	269	276	anti-parallel

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There are 8 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	305	307	first strand
Strand 2	B	346	350	anti-parallel
Strand 3	B	362	371	anti-parallel
Strand 4	B	355	358	anti-parallel
Strand 5	B	286	292	parallel
Strand 6	B	295	301	anti-parallel
Strand 7	B	318	325	anti-parallel
Strand 8	B	333	338	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	B	305	307	first strand
Strand 2	B	346	350	anti-parallel
Strand 3	B	362	371	anti-parallel
Strand 4	B	408	416	anti-parallel
Strand 5	B	425	430	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	B	442	445	first strand
Strand 2	B	452	456	anti-parallel
Strand 3	B	466	471	anti-parallel
Strand 4	B	477	479	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	B	484	486	first strand
Strand 2	B	495	497	anti-parallel

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There are 4 strands in S sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	508	517	first strand
Strand 2	B	523	530	anti-parallel
Strand 3	B	537	542	anti-parallel
Strand 4	B	551	556	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	43	46	first strand
Strand 2	B	104	107	anti-parallel
Strand 3	B	96	99	anti-parallel

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There are 8 strands in U sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	562	573	first strand
Strand 2	C	576	586	anti-parallel
Strand 3	C	598	606	anti-parallel
Strand 4	C	192	199	anti-parallel
Strand 5	C	127	131	anti-parallel
Strand 6	C	116	123	anti-parallel
Strand 7	C	134	138	anti-parallel
Strand 8	C	34	38	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	593	595	first strand
Strand 2	C	576	586	anti-parallel
Strand 3	C	598	606	anti-parallel
Strand 4	C	192	199	anti-parallel
Strand 5	C	127	131	anti-parallel
Strand 6	C	116	123	anti-parallel
Strand 7	C	61	67	anti-parallel
Strand 8	C	76	81	anti-parallel
Strand 9	C	90	91	anti-parallel

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There are 4 strands in W sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	217	224	first strand
Strand 2	C	227	235	anti-parallel
Strand 3	C	251	261	anti-parallel
Strand 4	C	269	279	anti-parallel

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There are 11 strands in X sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	305	307	first strand
Strand 2	C	346	350	anti-parallel
Strand 3	C	362	371	anti-parallel
Strand 4	C	408	416	anti-parallel
Strand 5	C	425	430	anti-parallel
Strand 6	C	333	341	parallel
Strand 7	C	318	325	anti-parallel
Strand 8	C	295	301	anti-parallel
Strand 9	C	286	292	anti-parallel
Strand 10	C	355	358	parallel
Strand 11	C	362	371	anti-parallel

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There are 4 strands in Y sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	442	445	first strand
Strand 2	C	451	456	anti-parallel
Strand 3	C	466	471	anti-parallel
Strand 4	C	477	482	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	484	487	first strand
Strand 2	C	494	497	anti-parallel

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There are 4 strands in AA sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	508	511	first strand
Strand 2	C	524	530	anti-parallel
Strand 3	C	537	543	anti-parallel
Strand 4	C	551	556	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	44	45	first strand
Strand 2	C	104	107	anti-parallel
Strand 3	C	96	99	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	562	572	first strand
Strand 2	D	577	586	anti-parallel
Strand 3	D	594	605	anti-parallel
Strand 4	D	192	198	anti-parallel
Strand 5	D	128	137	anti-parallel
Strand 6	D	36	37	parallel

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There are 8 strands in AD sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	562	572	first strand
Strand 2	D	577	586	anti-parallel
Strand 3	D	594	605	anti-parallel
Strand 4	D	192	198	anti-parallel
Strand 5	D	128	137	anti-parallel
Strand 6	D	116	123	anti-parallel
Strand 7	D	61	66	anti-parallel
Strand 8	D	79	81	anti-parallel

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There are 4 strands in AE sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	216	224	first strand
Strand 2	D	227	236	anti-parallel
Strand 3	D	250	261	anti-parallel
Strand 4	D	269	279	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	346	349	first strand
Strand 2	D	362	371	anti-parallel
Strand 3	D	409	416	anti-parallel
Strand 4	D	425	430	anti-parallel
Strand 5	D	333	340	parallel
Strand 6	D	318	325	anti-parallel
Strand 7	D	295	301	anti-parallel
Strand 8	D	286	292	anti-parallel
Strand 9	D	354	357	parallel

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There are 4 strands in AG sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	442	444	first strand
Strand 2	D	452	456	anti-parallel
Strand 3	D	466	471	anti-parallel
Strand 4	D	477	482	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	485	486	first strand
Strand 2	D	495	496	anti-parallel

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There are 4 strands in AI sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	508	511	first strand
Strand 2	D	524	530	anti-parallel
Strand 3	D	537	543	anti-parallel
Strand 4	D	551	556	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	44	46	first strand
Strand 2	D	104	107	anti-parallel
Strand 3	D	96	99	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: 3ALX

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