Analysis of interatomic Contacts of Structural Units in PDB entry:
4IZN

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 4IZN entry

There are 24 chains in PDB entry 4IZN (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	MET 1	PHE 61
A	ASN 65	PRO 220
B	MET 1	PHE 61
B	ASN 65	PRO 220
C	SER 2	PHE 61
C	ASN 65	PRO 220
D	MET 1	PHE 61
D	ASN 65	PRO 220
E	MET 1	PHE 61
E	ASN 65	PRO 220
F	MET 1	PHE 61
F	ASN 65	PRO 220
G	MET 1	PHE 61
G	ASN 65	PRO 220
H	SER 2	PHE 61
H	ASN 65	PRO 220
I	SER 2	PHE 61
I	ASN 65	PRO 220
J	MET 1	PHE 61
J	ASN 65	PRO 220
K	MET 1	PHE 61
K	ASN 65	PRO 220
L	MET 1	PHE 61
L	ASN 65	PRO 220

There are 25 helices in PDB entry 4IZN. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	53	58	Right-handed 310
Helix 2	2	A	77	82	Right-handed alpha
Helix 3	3	B	53	61	Right-handed 310
Helix 4	4	B	77	82	Right-handed alpha
Helix 5	5	C	53	61	Right-handed 310
Helix 6	6	C	77	82	Right-handed alpha
Helix 7	7	D	33	35	Right-handed 310
Helix 8	8	D	53	61	Right-handed 310
Helix 9	9	D	77	82	Right-handed alpha
Helix 10	10	E	53	61	Right-handed 310
Helix 11	11	E	79	83	Right-handed 310
Helix 12	12	F	53	61	Right-handed 310
Helix 13	13	G	33	35	Right-handed 310
Helix 14	14	G	53	61	Right-handed 310
Helix 15	15	G	79	83	Right-handed 310
Helix 16	16	H	53	61	Right-handed 310
Helix 17	17	H	77	83	Right-handed alpha
Helix 18	18	I	53	61	Right-handed 310
Helix 19	19	I	77	82	Right-handed alpha
Helix 20	20	J	53	61	Right-handed 310
Helix 21	21	J	77	82	Right-handed alpha
Helix 22	22	K	53	61	Right-handed 310
Helix 23	23	K	77	82	Right-handed alpha
Helix 24	24	L	53	61	Right-handed 310
Helix 25	25	L	77	82	Right-handed alpha

There are 12 sheets in PDB entry 4IZN. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

There are 13 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	136	139	first strand
Strand 2	A	152	163	anti-parallel
Strand 3	A	168	179	anti-parallel
Strand 4	A	87	95	anti-parallel
Strand 5	A	100	110	anti-parallel
Strand 6	A	113	123	anti-parallel
Strand 7	A	8	18	parallel
Strand 8	A	21	32	anti-parallel
Strand 9	A	37	46	anti-parallel
Strand 10	A	206	216	anti-parallel
Strand 11	A	189	200	anti-parallel
Strand 12	A	142	149	anti-parallel
Strand 13	A	152	163	anti-parallel

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There are 13 strands in B sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	136	139	first strand
Strand 2	B	152	163	anti-parallel
Strand 3	B	168	179	anti-parallel
Strand 4	B	87	95	anti-parallel
Strand 5	B	100	110	anti-parallel
Strand 6	B	113	123	anti-parallel
Strand 7	B	8	18	parallel
Strand 8	B	21	32	anti-parallel
Strand 9	B	37	46	anti-parallel
Strand 10	B	206	216	anti-parallel
Strand 11	B	189	200	anti-parallel
Strand 12	B	142	149	anti-parallel
Strand 13	B	152	163	anti-parallel

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There are 13 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	136	139	first strand
Strand 2	C	152	163	anti-parallel
Strand 3	C	168	179	anti-parallel
Strand 4	C	87	95	anti-parallel
Strand 5	C	100	110	anti-parallel
Strand 6	C	113	123	anti-parallel
Strand 7	C	8	18	parallel
Strand 8	C	21	32	anti-parallel
Strand 9	C	37	46	anti-parallel
Strand 10	C	206	216	anti-parallel
Strand 11	C	189	200	anti-parallel
Strand 12	C	142	149	anti-parallel
Strand 13	C	152	163	anti-parallel

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There are 13 strands in D sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	136	139	first strand
Strand 2	D	152	163	anti-parallel
Strand 3	D	168	179	anti-parallel
Strand 4	D	87	95	anti-parallel
Strand 5	D	100	110	anti-parallel
Strand 6	D	113	123	anti-parallel
Strand 7	D	8	18	parallel
Strand 8	D	21	32	anti-parallel
Strand 9	D	37	46	anti-parallel
Strand 10	D	206	216	anti-parallel
Strand 11	D	189	200	anti-parallel
Strand 12	D	142	149	anti-parallel
Strand 13	D	152	163	anti-parallel

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There are 13 strands in E sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	136	139	first strand
Strand 2	E	152	163	anti-parallel
Strand 3	E	168	179	anti-parallel
Strand 4	E	87	95	anti-parallel
Strand 5	E	100	110	anti-parallel
Strand 6	E	113	123	anti-parallel
Strand 7	E	8	18	parallel
Strand 8	E	21	32	anti-parallel
Strand 9	E	37	46	anti-parallel
Strand 10	E	206	216	anti-parallel
Strand 11	E	189	200	anti-parallel
Strand 12	E	142	149	anti-parallel
Strand 13	E	152	163	anti-parallel

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There are 13 strands in F sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	136	139	first strand
Strand 2	F	152	163	anti-parallel
Strand 3	F	168	179	anti-parallel
Strand 4	F	87	95	anti-parallel
Strand 5	F	100	110	anti-parallel
Strand 6	F	113	123	anti-parallel
Strand 7	F	8	18	parallel
Strand 8	F	21	32	anti-parallel
Strand 9	F	37	46	anti-parallel
Strand 10	F	206	216	anti-parallel
Strand 11	F	189	200	anti-parallel
Strand 12	F	142	149	anti-parallel
Strand 13	F	152	163	anti-parallel

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There are 13 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	136	139	first strand
Strand 2	G	152	163	anti-parallel
Strand 3	G	168	179	anti-parallel
Strand 4	G	87	95	anti-parallel
Strand 5	G	100	110	anti-parallel
Strand 6	G	113	123	anti-parallel
Strand 7	G	8	18	parallel
Strand 8	G	21	32	anti-parallel
Strand 9	G	37	46	anti-parallel
Strand 10	G	206	216	anti-parallel
Strand 11	G	189	200	anti-parallel
Strand 12	G	142	149	anti-parallel
Strand 13	G	152	163	anti-parallel

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There are 13 strands in H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	136	139	first strand
Strand 2	H	152	163	anti-parallel
Strand 3	H	168	179	anti-parallel
Strand 4	H	87	95	anti-parallel
Strand 5	H	100	110	anti-parallel
Strand 6	H	113	123	anti-parallel
Strand 7	H	8	18	parallel
Strand 8	H	21	32	anti-parallel
Strand 9	H	37	46	anti-parallel
Strand 10	H	206	216	anti-parallel
Strand 11	H	189	200	anti-parallel
Strand 12	H	142	149	anti-parallel
Strand 13	H	152	163	anti-parallel

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There are 13 strands in I sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	136	139	first strand
Strand 2	I	152	163	anti-parallel
Strand 3	I	168	179	anti-parallel
Strand 4	I	87	95	anti-parallel
Strand 5	I	100	110	anti-parallel
Strand 6	I	113	123	anti-parallel
Strand 7	I	8	18	parallel
Strand 8	I	21	31	anti-parallel
Strand 9	I	37	46	anti-parallel
Strand 10	I	206	216	anti-parallel
Strand 11	I	189	200	anti-parallel
Strand 12	I	142	149	anti-parallel
Strand 13	I	152	163	anti-parallel

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There are 13 strands in J sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	136	139	first strand
Strand 2	J	152	163	anti-parallel
Strand 3	J	168	179	anti-parallel
Strand 4	J	87	95	anti-parallel
Strand 5	J	100	110	anti-parallel
Strand 6	J	113	123	anti-parallel
Strand 7	J	8	18	parallel
Strand 8	J	21	32	anti-parallel
Strand 9	J	37	46	anti-parallel
Strand 10	J	206	216	anti-parallel
Strand 11	J	189	200	anti-parallel
Strand 12	J	142	149	anti-parallel
Strand 13	J	152	163	anti-parallel

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There are 13 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	136	139	first strand
Strand 2	K	152	163	anti-parallel
Strand 3	K	168	179	anti-parallel
Strand 4	K	87	95	anti-parallel
Strand 5	K	100	110	anti-parallel
Strand 6	K	113	123	anti-parallel
Strand 7	K	8	18	parallel
Strand 8	K	21	32	anti-parallel
Strand 9	K	37	46	anti-parallel
Strand 10	K	206	216	anti-parallel
Strand 11	K	189	200	anti-parallel
Strand 12	K	142	149	anti-parallel
Strand 13	K	152	163	anti-parallel

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There are 13 strands in L sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	136	139	first strand
Strand 2	L	152	163	anti-parallel
Strand 3	L	168	179	anti-parallel
Strand 4	L	87	95	anti-parallel
Strand 5	L	100	110	anti-parallel
Strand 6	L	113	123	anti-parallel
Strand 7	L	8	18	parallel
Strand 8	L	21	32	anti-parallel
Strand 9	L	37	46	anti-parallel
Strand 10	L	206	216	anti-parallel
Strand 11	L	189	200	anti-parallel
Strand 12	L	142	149	anti-parallel
Strand 13	L	152	163	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: 4IZN

Analysis of interatomic Contacts of Structural Units in PDB entry:
4IZN