Analysis of interatomic Contacts of Structural Units in PDB entry:
20ZQ

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 20ZQ entry

There are 4 chains in PDB entry 20ZQ (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASN 23	PRO 441
B	ALA 24	HIS 451
C	ARG 27	PRO 441
D	PHE 26	PRO 441

There are 52 helices in PDB entry 20ZQ. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	23	27	Right-handed 310
Helix 2	AA2	A	58	71	Right-handed alpha
Helix 3	AA3	A	79	83	Right-handed 310
Helix 4	AA4	A	112	117	Right-handed alpha
Helix 5	AA5	A	125	137	Right-handed alpha
Helix 6	AA6	A	149	160	Right-handed alpha
Helix 7	AA7	A	230	243	Right-handed alpha
Helix 8	AA8	A	251	256	Right-handed alpha
Helix 9	AA9	A	289	299	Right-handed alpha
Helix 10	AB1	A	312	324	Right-handed alpha
Helix 11	AB2	A	325	327	Right-handed 310
Helix 12	AB3	A	336	348	Right-handed alpha
Helix 13	AB4	A	352	363	Right-handed alpha
Helix 14	AB5	A	417	437	Right-handed alpha
Helix 15	AB6	B	58	71	Right-handed alpha
Helix 16	AB7	B	79	83	Right-handed 310
Helix 17	AB8	B	112	117	Right-handed alpha
Helix 18	AB9	B	125	137	Right-handed alpha
Helix 19	AC1	B	149	160	Right-handed alpha
Helix 20	AC2	B	230	243	Right-handed alpha
Helix 21	AC3	B	251	256	Right-handed alpha
Helix 22	AC4	B	289	299	Right-handed alpha
Helix 23	AC5	B	312	322	Right-handed alpha
Helix 24	AC6	B	323	327	Right-handed 310
Helix 25	AC7	B	336	348	Right-handed alpha
Helix 26	AC8	B	352	363	Right-handed alpha
Helix 27	AC9	B	417	437	Right-handed alpha
Helix 28	AD1	B	440	451	Right-handed alpha
Helix 29	AD2	C	58	71	Right-handed alpha
Helix 30	AD3	C	79	83	Right-handed 310
Helix 31	AD4	C	115	119	Right-handed 310
Helix 32	AD5	C	125	137	Right-handed alpha
Helix 33	AD6	C	149	160	Right-handed alpha
Helix 34	AD7	C	230	243	Right-handed alpha
Helix 35	AD8	C	251	256	Right-handed alpha
Helix 36	AD9	C	289	299	Right-handed alpha
Helix 37	AE1	C	312	322	Right-handed alpha
Helix 38	AE2	C	336	347	Right-handed alpha
Helix 39	AE3	C	352	363	Right-handed alpha
Helix 40	AE4	C	417	437	Right-handed alpha
Helix 41	AE5	D	58	71	Right-handed alpha
Helix 42	AE6	D	79	83	Right-handed 310
Helix 43	AE7	D	115	119	Right-handed 310
Helix 44	AE8	D	125	137	Right-handed alpha
Helix 45	AE9	D	149	160	Right-handed alpha
Helix 46	AF1	D	230	243	Right-handed alpha
Helix 47	AF2	D	251	256	Right-handed alpha
Helix 48	AF3	D	289	299	Right-handed alpha
Helix 49	AF4	D	312	322	Right-handed alpha
Helix 50	AF5	D	336	348	Right-handed alpha
Helix 51	AF6	D	352	363	Right-handed alpha
Helix 52	AF7	D	417	438	Right-handed alpha

There are 12 sheets in PDB entry 20ZQ. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3,

There are 9 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	164	172	first strand
Strand 2	A	175	183	anti-parallel
Strand 3	A	186	192	anti-parallel
Strand 4	A	139	147	parallel
Strand 5	A	46	55	anti-parallel
Strand 6	A	97	104	parallel
Strand 7	A	87	94	anti-parallel
Strand 8	A	74	78	anti-parallel
Strand 9	A	206	207	anti-parallel

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There are 8 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	245	250	first strand
Strand 2	A	262	268	anti-parallel
Strand 3	A	275	281	anti-parallel
Strand 4	A	218	227	parallel
Strand 5	A	302	310	anti-parallel
Strand 6	A	389	397	parallel
Strand 7	A	372	378	anti-parallel
Strand 8	A	365	368	anti-parallel

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There are 2 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	399	400	first strand
Strand 2	A	408	409	anti-parallel

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There are 9 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	164	170	first strand
Strand 2	B	176	183	anti-parallel
Strand 3	B	186	192	anti-parallel
Strand 4	B	139	147	parallel
Strand 5	B	46	55	anti-parallel
Strand 6	B	97	104	parallel
Strand 7	B	87	94	anti-parallel
Strand 8	B	74	78	anti-parallel
Strand 9	B	206	207	anti-parallel

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There are 8 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	245	250	first strand
Strand 2	B	262	268	anti-parallel
Strand 3	B	275	281	anti-parallel
Strand 4	B	218	227	parallel
Strand 5	B	302	310	anti-parallel
Strand 6	B	389	397	parallel
Strand 7	B	372	378	anti-parallel
Strand 8	B	365	368	anti-parallel

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There are 2 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	399	400	first strand
Strand 2	B	408	409	anti-parallel

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There are 9 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	164	172	first strand
Strand 2	C	175	183	anti-parallel
Strand 3	C	186	192	anti-parallel
Strand 4	C	139	147	parallel
Strand 5	C	46	55	anti-parallel
Strand 6	C	97	104	parallel
Strand 7	C	87	94	anti-parallel
Strand 8	C	74	78	anti-parallel
Strand 9	C	206	207	anti-parallel

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There are 8 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	245	250	first strand
Strand 2	C	262	268	anti-parallel
Strand 3	C	275	281	anti-parallel
Strand 4	C	218	227	parallel
Strand 5	C	302	310	anti-parallel
Strand 6	C	389	397	parallel
Strand 7	C	372	378	anti-parallel
Strand 8	C	365	368	anti-parallel

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There are 2 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	399	400	first strand
Strand 2	C	408	409	anti-parallel

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There are 9 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	164	172	first strand
Strand 2	D	175	183	anti-parallel
Strand 3	D	186	192	anti-parallel
Strand 4	D	140	147	parallel
Strand 5	D	46	55	anti-parallel
Strand 6	D	97	104	parallel
Strand 7	D	87	94	anti-parallel
Strand 8	D	74	78	anti-parallel
Strand 9	D	206	207	anti-parallel

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There are 8 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	245	250	first strand
Strand 2	D	262	268	anti-parallel
Strand 3	D	275	281	anti-parallel
Strand 4	D	218	227	parallel
Strand 5	D	302	310	anti-parallel
Strand 6	D	389	397	parallel
Strand 7	D	372	378	anti-parallel
Strand 8	D	365	368	anti-parallel

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There are 2 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	399	400	first strand
Strand 2	D	408	409	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: 20ZQ

Analysis of interatomic Contacts of Structural Units in PDB entry:
20ZQ