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

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 3IXK entry

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

Chain ID	Initial residue	Terminal residue
A	SER 46	ASN 433
B	SER 46	ASN 433
C	SER 46	ASN 433

There are 36 helices in PDB entry 3IXK. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	46	50	Right-handed 310
Helix 2	2	A	101	105	Right-handed 310
Helix 3	3	A	171	175	Right-handed 310
Helix 4	4	A	183	192	Right-handed alpha
Helix 5	5	A	228	230	Right-handed 310
Helix 6	6	A	264	270	Right-handed 310
Helix 7	7	A	286	300	Right-handed alpha
Helix 8	8	A	324	328	Right-handed 310
Helix 9	9	A	349	353	Right-handed alpha
Helix 10	10	A	382	387	Right-handed alpha
Helix 11	11	A	426	431	Right-handed 310
Helix 12	12	B	46	51	Right-handed 310
Helix 13	13	B	101	105	Right-handed 310
Helix 14	14	B	171	175	Right-handed 310
Helix 15	15	B	183	192	Right-handed alpha
Helix 16	16	B	228	230	Right-handed 310
Helix 17	17	B	264	268	Right-handed 310
Helix 18	18	B	286	300	Right-handed alpha
Helix 19	19	B	306	312	Right-handed 310
Helix 20	20	B	324	328	Right-handed 310
Helix 21	21	B	349	353	Right-handed alpha
Helix 22	22	B	382	387	Right-handed alpha
Helix 23	23	B	395	397	Right-handed 310
Helix 24	24	B	426	431	Right-handed alpha
Helix 25	25	C	101	105	Right-handed 310
Helix 26	26	C	171	175	Right-handed 310
Helix 27	27	C	183	192	Right-handed alpha
Helix 28	28	C	228	230	Right-handed 310
Helix 29	29	C	264	270	Right-handed 310
Helix 30	30	C	286	300	Right-handed alpha
Helix 31	31	C	306	311	Right-handed alpha
Helix 32	32	C	324	328	Right-handed 310
Helix 33	33	C	349	353	Right-handed alpha
Helix 34	34	C	382	387	Right-handed alpha
Helix 35	35	C	395	397	Right-handed 310
Helix 36	36	C	426	431	Right-handed 310

There are 15 sheets in PDB entry 3IXK. 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,

There are 9 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	109	119	first strand
Strand 2	A	122	134	anti-parallel
Strand 3	A	63	68	anti-parallel
Strand 4	A	54	56	anti-parallel
Strand 5	A	218	224	anti-parallel
Strand 6	A	198	203	anti-parallel
Strand 7	A	389	394	anti-parallel
Strand 8	A	399	405	anti-parallel
Strand 9	A	232	240	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	A	109	119	first strand
Strand 2	A	122	134	anti-parallel
Strand 3	A	143	154	anti-parallel
Strand 4	A	86	89	parallel
Strand 5	A	165	168	anti-parallel
Strand 6	A	73	80	parallel
Strand 7	A	63	68	anti-parallel
Strand 8	A	54	56	anti-parallel
Strand 9	A	218	224	anti-parallel
Strand 10	A	198	203	anti-parallel
Strand 11	A	389	394	anti-parallel
Strand 12	A	399	405	anti-parallel
Strand 13	A	232	240	anti-parallel

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There are 5 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	248	249	first strand
Strand 2	A	273	275	anti-parallel
Strand 3	A	379	381	parallel
Strand 4	A	282	285	anti-parallel
Strand 5	A	372	375	parallel

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There are 5 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	259	260	first strand
Strand 2	A	251	256	anti-parallel
Strand 3	A	331	336	anti-parallel
Strand 4	A	342	348	anti-parallel
Strand 5	A	417	423	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	A	316	319	first strand
Strand 2	A	365	370	anti-parallel
Strand 3	A	354	356	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	109	118	first strand
Strand 2	B	123	134	anti-parallel
Strand 3	B	63	68	anti-parallel
Strand 4	B	54	56	anti-parallel
Strand 5	B	218	224	anti-parallel
Strand 6	B	198	203	anti-parallel
Strand 7	B	389	394	anti-parallel
Strand 8	B	399	405	anti-parallel
Strand 9	B	232	240	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	B	109	118	first strand
Strand 2	B	123	134	anti-parallel
Strand 3	B	143	154	anti-parallel
Strand 4	B	86	89	parallel
Strand 5	B	165	168	anti-parallel
Strand 6	B	73	80	parallel
Strand 7	B	63	68	anti-parallel
Strand 8	B	54	56	anti-parallel
Strand 9	B	218	224	anti-parallel
Strand 10	B	198	203	anti-parallel
Strand 11	B	389	394	anti-parallel
Strand 12	B	399	405	anti-parallel
Strand 13	B	232	240	anti-parallel

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There are 5 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	248	249	first strand
Strand 2	B	273	275	anti-parallel
Strand 3	B	379	381	parallel
Strand 4	B	282	285	anti-parallel
Strand 5	B	372	375	parallel

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There are 5 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	259	260	first strand
Strand 2	B	251	256	anti-parallel
Strand 3	B	331	335	anti-parallel
Strand 4	B	343	348	anti-parallel
Strand 5	B	417	422	anti-parallel

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There are 3 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	316	319	first strand
Strand 2	B	365	370	anti-parallel
Strand 3	B	354	356	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	109	118	first strand
Strand 2	C	123	134	anti-parallel
Strand 3	C	63	68	anti-parallel
Strand 4	C	54	56	anti-parallel
Strand 5	C	218	224	anti-parallel
Strand 6	C	198	203	anti-parallel
Strand 7	C	389	394	anti-parallel
Strand 8	C	399	405	anti-parallel
Strand 9	C	232	240	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	C	109	118	first strand
Strand 2	C	123	134	anti-parallel
Strand 3	C	143	154	anti-parallel
Strand 4	C	86	89	parallel
Strand 5	C	165	168	anti-parallel
Strand 6	C	73	80	parallel
Strand 7	C	63	68	anti-parallel
Strand 8	C	54	56	anti-parallel
Strand 9	C	218	224	anti-parallel
Strand 10	C	198	203	anti-parallel
Strand 11	C	389	394	anti-parallel
Strand 12	C	399	405	anti-parallel
Strand 13	C	232	240	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	259	260	first strand
Strand 2	C	251	256	anti-parallel
Strand 3	C	331	336	anti-parallel
Strand 4	C	342	348	anti-parallel
Strand 5	C	417	423	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	273	275	first strand
Strand 2	C	379	381	parallel
Strand 3	C	282	285	anti-parallel
Strand 4	C	372	375	parallel

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There are 2 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	354	356	first strand
Strand 2	C	368	370	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: 3IXK

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