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

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 4ACA entry

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

Chain ID	Initial residue	Terminal residue
A	HIS 0	GLY 468
B	MET 1	GLY 468
C	ARG -2	ASN 386

There are 33 helices in PDB entry 4ACA. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	17	27	Right-handed alpha
Helix 2	2	A	68	80	Right-handed alpha
Helix 3	3	A	97	110	Right-handed alpha
Helix 4	4	A	120	124	Right-handed 310
Helix 5	5	A	125	141	Right-handed alpha
Helix 6	6	A	161	176	Right-handed alpha
Helix 7	7	A	381	386	Right-handed alpha
Helix 8	8	A	412	418	Right-handed alpha
Helix 9	9	B	17	29	Right-handed alpha
Helix 10	10	B	68	80	Right-handed alpha
Helix 11	11	B	97	110	Right-handed alpha
Helix 12	12	B	120	124	Right-handed 310
Helix 13	13	B	125	141	Right-handed alpha
Helix 14	14	B	161	175	Right-handed alpha
Helix 15	15	B	256	260	Right-handed 310
Helix 16	16	B	287	290	Right-handed 310
Helix 17	17	B	381	385	Right-handed 310
Helix 18	18	B	412	420	Right-handed alpha
Helix 19	19	C	17	27	Right-handed alpha
Helix 20	20	C	68	80	Right-handed alpha
Helix 21	21	C	97	110	Right-handed alpha
Helix 22	22	C	120	124	Right-handed 310
Helix 23	23	C	125	141	Right-handed alpha
Helix 24	24	C	161	176	Right-handed alpha
Helix 25	25	C	256	260	Right-handed 310
Helix 26	26	C	382	385	Right-handed 310
Helix 27	27	C	412	420	Right-handed alpha
Helix 28	28	D	14	29	Right-handed alpha
Helix 29	29	D	79	83	Right-handed 310
Helix 30	30	D	97	110	Right-handed alpha
Helix 31	31	D	125	141	Right-handed alpha
Helix 32	32	D	161	176	Right-handed alpha
Helix 33	33	D	412	418	Right-handed alpha

There are 18 sheets in PDB entry 4ACA. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AG, BA, BB, BC, CA, CB, CC, A, DB, C, DD, DE, G,

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	A	53	56	first strand
Strand 2	A	59	64	anti-parallel
Strand 3	A	4	12	parallel
Strand 4	A	85	91	parallel
Strand 5	A	114	119	parallel
Strand 6	A	151	153	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	187	189	first strand
Strand 2	A	265	267	anti-parallel
Strand 3	A	217	221	anti-parallel
Strand 4	A	225	233	anti-parallel
Strand 5	A	238	239	anti-parallel

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There are 7 strands in AC sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	187	189	first strand
Strand 2	A	265	267	anti-parallel
Strand 3	A	217	221	anti-parallel
Strand 4	A	225	233	anti-parallel
Strand 5	A	247	253	anti-parallel
Strand 6	A	201	206	anti-parallel
Strand 7	A	193	195	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	238	239	first strand
Strand 2	A	225	233	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	211	213	first strand
Strand 2	A	241	243	anti-parallel

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There are 7 strands in AG sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	388	400	first strand
Strand 2	A	457	466	anti-parallel
Strand 3	A	423	426	anti-parallel
Strand 4	A	432	439	anti-parallel
Strand 5	A	444	449	anti-parallel
Strand 6	A	403	407	anti-parallel
Strand 7	A	388	400	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	53	56	first strand
Strand 2	B	59	64	anti-parallel
Strand 3	B	4	12	parallel
Strand 4	B	85	91	parallel
Strand 5	B	114	119	parallel
Strand 6	B	151	153	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	187	196	first strand
Strand 2	B	265	268	anti-parallel
Strand 3	B	217	221	anti-parallel
Strand 4	B	225	234	anti-parallel
Strand 5	B	237	239	anti-parallel
Strand 6	B	200	206	first strand
Strand 7	B	247	253	anti-parallel
Strand 8	B	187	196	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	211	213	first strand
Strand 2	B	241	243	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	53	56	first strand
Strand 2	C	59	64	anti-parallel
Strand 3	C	4	12	parallel
Strand 4	C	83	91	parallel
Strand 5	C	114	119	parallel
Strand 6	C	151	153	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	187	196	first strand
Strand 2	C	265	267	anti-parallel
Strand 3	C	200	206	first strand
Strand 4	C	217	221	first strand
Strand 5	C	225	234	anti-parallel
Strand 6	C	238	239	first strand
Strand 7	C	247	253	anti-parallel
Strand 8	C	187	196	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	211	213	first strand
Strand 2	C	241	243	anti-parallel

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There are 7 strands in A sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	32	34	first strand
Strand 2	D	53	56	anti-parallel
Strand 3	D	59	63	anti-parallel
Strand 4	D	4	11	parallel
Strand 5	D	85	91	parallel
Strand 6	D	114	119	parallel
Strand 7	D	151	153	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	187	189	first strand
Strand 2	D	265	267	anti-parallel
Strand 3	D	217	221	anti-parallel
Strand 4	D	225	234	anti-parallel
Strand 5	D	237	238	anti-parallel

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There are 7 strands in C sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	187	189	first strand
Strand 2	D	265	267	anti-parallel
Strand 3	D	217	221	anti-parallel
Strand 4	D	225	234	anti-parallel
Strand 5	D	247	253	anti-parallel
Strand 6	D	200	206	anti-parallel
Strand 7	D	192	196	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	237	238	first strand
Strand 2	D	225	234	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	211	213	first strand
Strand 2	D	241	243	anti-parallel

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There are 7 strands in G sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	388	400	first strand
Strand 2	D	457	466	anti-parallel
Strand 3	D	403	407	first strand
Strand 4	D	423	426	first strand
Strand 5	D	432	439	anti-parallel
Strand 6	D	444	449	first strand
Strand 7	D	388	400	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: 4ACA

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