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

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 2ZAI entry

There are 4 chains in PDB entry 2ZAI (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLU 487	HIS 967
B	THR 488	ALA 964
C	GLU 487	HIS 966
D	GLU 487	HIS 966

There are 50 helices in PDB entry 2ZAI. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	490	502	Right-handed alpha
Helix 2	2	A	513	520	Right-handed alpha
Helix 3	3	A	536	548	Right-handed alpha
Helix 4	4	A	550	554	Right-handed 310
Helix 5	5	A	556	561	Right-handed 310
Helix 6	6	A	570	573	Right-handed 310
Helix 7	7	A	574	582	Right-handed alpha
Helix 8	8	A	586	592	Right-handed alpha
Helix 9	9	A	681	683	Right-handed 310
Helix 10	10	A	685	693	Right-handed alpha
Helix 11	11	A	701	709	Right-handed alpha
Helix 12	12	A	921	935	Right-handed alpha
Helix 13	13	B	490	500	Right-handed alpha
Helix 14	14	B	513	521	Right-handed alpha
Helix 15	15	B	535	548	Right-handed alpha
Helix 16	16	B	556	561	Right-handed 310
Helix 17	17	B	570	573	Right-handed 310
Helix 18	18	B	574	582	Right-handed alpha
Helix 19	19	B	586	592	Right-handed alpha
Helix 20	20	B	681	683	Right-handed 310
Helix 21	21	B	685	693	Right-handed alpha
Helix 22	22	B	701	709	Right-handed alpha
Helix 23	23	B	923	935	Right-handed alpha
Helix 24	24	C	490	500	Right-handed alpha
Helix 25	25	C	510	512	Right-handed 310
Helix 26	26	C	513	521	Right-handed alpha
Helix 27	27	C	537	547	Right-handed alpha
Helix 28	28	C	550	554	Right-handed 310
Helix 29	29	C	556	561	Right-handed 310
Helix 30	30	C	570	573	Right-handed 310
Helix 31	31	C	574	582	Right-handed alpha
Helix 32	32	C	586	592	Right-handed alpha
Helix 33	33	C	681	683	Right-handed 310
Helix 34	34	C	685	693	Right-handed alpha
Helix 35	35	C	701	709	Right-handed alpha
Helix 36	36	C	922	925	Right-handed 310
Helix 37	37	C	926	934	Right-handed alpha
Helix 38	38	D	490	502	Right-handed alpha
Helix 39	39	D	513	522	Right-handed alpha
Helix 40	40	D	535	548	Right-handed alpha
Helix 41	41	D	550	554	Right-handed 310
Helix 42	42	D	556	560	Right-handed 310
Helix 43	43	D	570	573	Right-handed 310
Helix 44	44	D	574	582	Right-handed alpha
Helix 45	45	D	586	592	Right-handed alpha
Helix 46	46	D	616	618	Right-handed 310
Helix 47	47	D	681	683	Right-handed 310
Helix 48	48	D	685	693	Right-handed alpha
Helix 49	49	D	701	709	Right-handed alpha
Helix 50	50	D	921	935	Right-handed alpha

There are 29 sheets in PDB entry 2ZAI. 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,

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	508	510	first strand
Strand 2	A	564	568	parallel
Strand 3	A	719	724	anti-parallel
Strand 4	A	710	715	anti-parallel

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There are 10 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	651	653	first strand
Strand 2	A	642	645	anti-parallel
Strand 3	A	666	670	parallel
Strand 4	A	674	679	anti-parallel
Strand 5	A	603	609	anti-parallel
Strand 6	A	612	615	anti-parallel
Strand 7	A	620	623	anti-parallel
Strand 8	A	630	633	anti-parallel
Strand 9	A	636	639	anti-parallel
Strand 10	A	657	658	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	740	743	first strand
Strand 2	A	727	735	anti-parallel
Strand 3	A	749	759	anti-parallel
Strand 4	A	799	805	anti-parallel

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There are 6 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	779	791	first strand
Strand 2	A	764	774	anti-parallel
Strand 3	A	810	821	anti-parallel
Strand 4	A	938	961	anti-parallel
Strand 5	A	859	874	anti-parallel
Strand 6	A	887	905	anti-parallel

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There are 4 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	823	824	first strand
Strand 2	A	846	855	anti-parallel
Strand 3	A	829	830	anti-parallel
Strand 4	A	833	834	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	A	823	824	first strand
Strand 2	A	846	855	anti-parallel
Strand 3	A	908	917	anti-parallel

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There are 4 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	508	510	first strand
Strand 2	B	564	568	parallel
Strand 3	B	719	724	anti-parallel
Strand 4	B	710	715	anti-parallel

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There are 10 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	651	653	first strand
Strand 2	B	642	645	anti-parallel
Strand 3	B	666	670	parallel
Strand 4	B	674	679	anti-parallel
Strand 5	B	603	609	anti-parallel
Strand 6	B	612	615	anti-parallel
Strand 7	B	620	623	anti-parallel
Strand 8	B	630	633	anti-parallel
Strand 9	B	636	639	anti-parallel
Strand 10	B	657	658	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	739	743	first strand
Strand 2	B	727	736	anti-parallel
Strand 3	B	749	759	anti-parallel
Strand 4	B	799	805	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	B	764	765	first strand
Strand 2	B	790	791	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	779	786	first strand
Strand 2	B	768	774	anti-parallel
Strand 3	B	810	821	anti-parallel
Strand 4	B	938	961	anti-parallel
Strand 5	B	859	874	anti-parallel
Strand 6	B	887	905	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	B	823	824	first strand
Strand 2	B	846	855	anti-parallel
Strand 3	B	829	830	anti-parallel
Strand 4	B	833	834	anti-parallel

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There are 3 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	823	824	first strand
Strand 2	B	846	855	anti-parallel
Strand 3	B	908	917	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	C	508	509	first strand
Strand 2	C	564	568	parallel
Strand 3	C	719	724	anti-parallel
Strand 4	C	710	716	anti-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	C	603	607	first strand
Strand 2	C	674	679	anti-parallel
Strand 3	C	666	670	anti-parallel
Strand 4	C	642	645	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	612	615	first strand
Strand 2	C	620	623	anti-parallel
Strand 3	C	630	633	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	C	638	639	first strand
Strand 2	C	657	658	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	739	742	first strand
Strand 2	C	727	736	anti-parallel
Strand 3	C	749	759	anti-parallel
Strand 4	C	799	805	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	778	790	first strand
Strand 2	C	765	775	anti-parallel
Strand 3	C	810	821	anti-parallel
Strand 4	C	938	961	anti-parallel
Strand 5	C	859	874	anti-parallel
Strand 6	C	887	895	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	778	790	first strand
Strand 2	C	765	775	anti-parallel
Strand 3	C	810	821	anti-parallel
Strand 4	C	938	961	anti-parallel
Strand 5	C	859	874	anti-parallel
Strand 6	C	903	905	anti-parallel

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There are 4 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	823	824	first strand
Strand 2	C	848	855	anti-parallel
Strand 3	C	829	830	anti-parallel
Strand 4	C	833	834	anti-parallel

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There are 3 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	823	824	first strand
Strand 2	C	848	855	anti-parallel
Strand 3	C	908	915	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	D	507	510	first strand
Strand 2	D	562	568	parallel
Strand 3	D	719	724	anti-parallel
Strand 4	D	710	715	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	603	607	first strand
Strand 2	D	674	679	anti-parallel
Strand 3	D	666	671	anti-parallel
Strand 4	D	642	645	parallel
Strand 5	D	651	653	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	612	615	first strand
Strand 2	D	620	624	anti-parallel
Strand 3	D	629	633	anti-parallel
Strand 4	D	636	639	anti-parallel
Strand 5	D	657	658	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	740	743	first strand
Strand 2	D	727	735	anti-parallel
Strand 3	D	749	759	anti-parallel
Strand 4	D	799	805	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	779	790	first strand
Strand 2	D	765	774	anti-parallel
Strand 3	D	810	821	anti-parallel
Strand 4	D	938	961	anti-parallel
Strand 5	D	859	874	anti-parallel
Strand 6	D	887	905	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	823	824	first strand
Strand 2	D	846	855	anti-parallel
Strand 3	D	829	830	anti-parallel
Strand 4	D	833	834	anti-parallel

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There are 3 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	823	824	first strand
Strand 2	D	846	855	anti-parallel
Strand 3	D	908	917	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: 2ZAI

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