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

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 2AYI entry

There are 5 chains in PDB entry 2AYI (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 3	VAL 408
B	ALA 3	VAL 408
C	ALA 3	VAL 408
D	ALA 3	VAL 408
E	ALA 3	VAL 408

There are 75 helices in PDB entry 2AYI. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	4	18	Right-handed alpha
Helix 2	2	A	36	50	Right-handed alpha
Helix 3	3	A	61	72	Right-handed alpha
Helix 4	4	A	81	94	Right-handed alpha
Helix 5	5	A	105	109	Right-handed 310
Helix 6	6	A	113	137	Right-handed alpha
Helix 7	7	A	152	157	Right-handed alpha
Helix 8	8	A	161	177	Right-handed alpha
Helix 9	9	A	184	205	Right-handed alpha
Helix 10	10	A	297	305	Right-handed alpha
Helix 11	11	A	309	312	Right-handed 310
Helix 12	12	A	324	330	Right-handed alpha
Helix 13	13	A	335	341	Right-handed alpha
Helix 14	14	A	352	356	Right-handed 310
Helix 15	15	A	364	369	Right-handed alpha
Helix 16	16	B	4	18	Right-handed alpha
Helix 17	17	B	36	50	Right-handed alpha
Helix 18	18	B	61	72	Right-handed alpha
Helix 19	19	B	81	94	Right-handed alpha
Helix 20	20	B	105	109	Right-handed 310
Helix 21	21	B	113	137	Right-handed alpha
Helix 22	22	B	152	157	Right-handed alpha
Helix 23	23	B	161	177	Right-handed alpha
Helix 24	24	B	185	205	Right-handed alpha
Helix 25	25	B	297	305	Right-handed alpha
Helix 26	26	B	309	312	Right-handed 310
Helix 27	27	B	324	330	Right-handed alpha
Helix 28	28	B	335	341	Right-handed alpha
Helix 29	29	B	352	356	Right-handed 310
Helix 30	30	B	364	369	Right-handed alpha
Helix 31	31	C	4	18	Right-handed alpha
Helix 32	32	C	36	50	Right-handed alpha
Helix 33	33	C	61	72	Right-handed alpha
Helix 34	34	C	81	94	Right-handed alpha
Helix 35	35	C	105	109	Right-handed 310
Helix 36	36	C	113	137	Right-handed alpha
Helix 37	37	C	152	157	Right-handed alpha
Helix 38	38	C	161	177	Right-handed alpha
Helix 39	39	C	184	205	Right-handed alpha
Helix 40	40	C	297	305	Right-handed alpha
Helix 41	41	C	309	312	Right-handed 310
Helix 42	42	C	324	330	Right-handed alpha
Helix 43	43	C	335	341	Right-handed alpha
Helix 44	44	C	352	356	Right-handed 310
Helix 45	45	C	364	369	Right-handed alpha
Helix 46	46	D	4	18	Right-handed alpha
Helix 47	47	D	36	50	Right-handed alpha
Helix 48	48	D	61	72	Right-handed alpha
Helix 49	49	D	81	94	Right-handed alpha
Helix 50	50	D	105	109	Right-handed 310
Helix 51	51	D	113	137	Right-handed alpha
Helix 52	52	D	152	157	Right-handed alpha
Helix 53	53	D	161	177	Right-handed alpha
Helix 54	54	D	185	205	Right-handed alpha
Helix 55	55	D	297	305	Right-handed alpha
Helix 56	56	D	309	312	Right-handed 310
Helix 57	57	D	324	330	Right-handed alpha
Helix 58	58	D	335	341	Right-handed alpha
Helix 59	59	D	352	356	Right-handed 310
Helix 60	60	D	364	369	Right-handed alpha
Helix 61	61	E	4	18	Right-handed alpha
Helix 62	62	E	36	50	Right-handed alpha
Helix 63	63	E	61	72	Right-handed alpha
Helix 64	64	E	81	94	Right-handed alpha
Helix 65	65	E	105	109	Right-handed 310
Helix 66	66	E	113	137	Right-handed alpha
Helix 67	67	E	152	157	Right-handed alpha
Helix 68	68	E	161	177	Right-handed alpha
Helix 69	69	E	184	205	Right-handed alpha
Helix 70	70	E	297	305	Right-handed alpha
Helix 71	71	E	309	312	Right-handed 310
Helix 72	72	E	324	330	Right-handed alpha
Helix 73	73	E	335	341	Right-handed alpha
Helix 74	74	E	352	356	Right-handed 310
Helix 75	75	E	364	369	Right-handed alpha

There are 20 sheets in PDB entry 2AYI. 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,

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	54	59	first strand
Strand 2	A	27	32	parallel
Strand 3	A	97	102	parallel
Strand 4	A	145	146	parallel

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There are 8 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	288	293	first strand
Strand 2	A	281	285	anti-parallel
Strand 3	A	260	265	anti-parallel
Strand 4	A	217	222	anti-parallel
Strand 5	A	209	214	anti-parallel
Strand 6	A	387	391	anti-parallel
Strand 7	A	397	402	anti-parallel
Strand 8	A	405	406	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	230	231	first strand
Strand 2	A	251	253	anti-parallel
Strand 3	A	314	318	anti-parallel
Strand 4	A	345	349	anti-parallel
Strand 5	A	376	380	anti-parallel

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There are 2 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	270	272	first strand
Strand 2	A	275	277	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	B	54	59	first strand
Strand 2	B	27	32	parallel
Strand 3	B	97	102	parallel
Strand 4	B	145	146	parallel

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There are 8 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	288	293	first strand
Strand 2	B	281	285	anti-parallel
Strand 3	B	255	265	anti-parallel
Strand 4	B	217	223	anti-parallel
Strand 5	B	209	214	anti-parallel
Strand 6	B	387	391	anti-parallel
Strand 7	B	397	402	anti-parallel
Strand 8	B	405	406	anti-parallel

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There are 5 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	230	231	first strand
Strand 2	B	251	253	anti-parallel
Strand 3	B	314	318	anti-parallel
Strand 4	B	345	349	anti-parallel
Strand 5	B	376	380	anti-parallel

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There are 2 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	270	272	first strand
Strand 2	B	275	277	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	C	54	59	first strand
Strand 2	C	27	32	parallel
Strand 3	C	97	102	parallel
Strand 4	C	145	146	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	288	293	first strand
Strand 2	C	281	285	anti-parallel
Strand 3	C	260	265	anti-parallel
Strand 4	C	217	222	anti-parallel
Strand 5	C	209	214	anti-parallel
Strand 6	C	387	391	anti-parallel
Strand 7	C	397	402	anti-parallel
Strand 8	C	405	406	anti-parallel

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There are 5 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	230	231	first strand
Strand 2	C	251	253	anti-parallel
Strand 3	C	314	318	anti-parallel
Strand 4	C	345	349	anti-parallel
Strand 5	C	376	380	anti-parallel

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There are 2 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	270	272	first strand
Strand 2	C	275	277	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	54	60	first strand
Strand 2	D	27	33	parallel
Strand 3	D	97	102	parallel
Strand 4	D	145	146	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	288	293	first strand
Strand 2	D	281	285	anti-parallel
Strand 3	D	255	265	anti-parallel
Strand 4	D	217	223	anti-parallel
Strand 5	D	209	214	anti-parallel
Strand 6	D	387	391	anti-parallel
Strand 7	D	397	402	anti-parallel
Strand 8	D	405	406	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	230	231	first strand
Strand 2	D	251	253	anti-parallel
Strand 3	D	314	318	anti-parallel
Strand 4	D	345	349	anti-parallel
Strand 5	D	376	380	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	270	272	first strand
Strand 2	D	275	277	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	54	59	first strand
Strand 2	E	27	32	parallel
Strand 3	E	97	102	parallel
Strand 4	E	145	146	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	288	293	first strand
Strand 2	E	281	285	anti-parallel
Strand 3	E	255	265	anti-parallel
Strand 4	E	217	223	anti-parallel
Strand 5	E	209	214	anti-parallel
Strand 6	E	387	391	anti-parallel
Strand 7	E	397	402	anti-parallel
Strand 8	E	405	406	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	230	231	first strand
Strand 2	E	251	253	anti-parallel
Strand 3	E	314	318	anti-parallel
Strand 4	E	345	349	anti-parallel
Strand 5	E	376	380	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	270	272	first strand
Strand 2	E	275	277	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: 2AYI

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