Analysis of interatomic Contacts of Structural Units in PDB entry:
2A1T

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 2A1T entry

There are 6 chains in PDB entry 2A1T (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	LEU 10	LYS 395
B	LEU 10	ASN 396
C	GLY 9	ASN 396
D	LEU 10	ASN 396
R	ARG 18	LYS 333
S	GLU 3	LYS 250

There are 93 helices in PDB entry 2A1T. 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	34	Right-handed alpha
Helix 2	2	A	34	46	Right-handed alpha
Helix 3	3	A	49	59	Right-handed alpha
Helix 4	4	A	67	71	Right-handed 310
Helix 5	5	A	76	91	Right-handed alpha
Helix 6	6	A	91	112	Right-handed alpha
Helix 7	7	A	113	121	Right-handed alpha
Helix 8	8	A	121	127	Right-handed alpha
Helix 9	9	A	143	147	Right-handed 310
Helix 10	10	A	189	193	Right-handed alpha
Helix 11	11	A	235	237	Right-handed 310
Helix 12	12	A	243	281	Right-handed alpha
Helix 13	13	A	291	321	Right-handed alpha
Helix 14	14	A	325	352	Right-handed alpha
Helix 15	15	A	353	357	Right-handed 310
Helix 16	16	A	361	370	Right-handed alpha
Helix 17	17	A	371	374	Right-handed 310
Helix 18	18	A	378	393	Right-handed alpha
Helix 19	19	B	17	34	Right-handed alpha
Helix 20	20	B	35	46	Right-handed alpha
Helix 21	21	B	49	59	Right-handed alpha
Helix 22	22	B	67	71	Right-handed 310
Helix 23	23	B	76	91	Right-handed alpha
Helix 24	24	B	91	112	Right-handed alpha
Helix 25	25	B	113	127	Right-handed alpha
Helix 26	26	B	143	147	Right-handed 310
Helix 27	27	B	189	193	Right-handed alpha
Helix 28	28	B	235	237	Right-handed 310
Helix 29	29	B	243	279	Right-handed alpha
Helix 30	30	B	291	321	Right-handed alpha
Helix 31	31	B	325	356	Right-handed alpha
Helix 32	32	B	361	370	Right-handed alpha
Helix 33	33	B	371	374	Right-handed 310
Helix 34	34	B	378	392	Right-handed alpha
Helix 35	35	B	393	395	Right-handed 310
Helix 36	36	C	17	34	Right-handed alpha
Helix 37	37	C	35	37	Right-handed 310
Helix 38	38	C	38	46	Right-handed alpha
Helix 39	39	C	49	59	Right-handed alpha
Helix 40	40	C	67	71	Right-handed 310
Helix 41	41	C	76	91	Right-handed alpha
Helix 42	42	C	91	112	Right-handed alpha
Helix 43	43	C	113	127	Right-handed alpha
Helix 44	44	C	143	147	Right-handed 310
Helix 45	45	C	189	193	Right-handed alpha
Helix 46	46	C	235	237	Right-handed 310
Helix 47	47	C	243	279	Right-handed alpha
Helix 48	48	C	291	321	Right-handed alpha
Helix 49	49	C	325	351	Right-handed alpha
Helix 50	50	C	351	356	Right-handed alpha
Helix 51	51	C	361	370	Right-handed alpha
Helix 52	52	C	371	374	Right-handed 310
Helix 53	53	C	378	393	Right-handed alpha
Helix 54	54	D	17	34	Right-handed alpha
Helix 55	55	D	35	46	Right-handed alpha
Helix 56	56	D	49	60	Right-handed alpha
Helix 57	57	D	67	71	Right-handed 310
Helix 58	58	D	76	91	Right-handed alpha
Helix 59	59	D	91	112	Right-handed alpha
Helix 60	60	D	113	121	Right-handed alpha
Helix 61	61	D	121	127	Right-handed alpha
Helix 62	62	D	143	147	Right-handed 310
Helix 63	63	D	189	193	Right-handed alpha
Helix 64	64	D	235	237	Right-handed 310
Helix 65	65	D	243	279	Right-handed alpha
Helix 66	66	D	291	321	Right-handed alpha
Helix 67	67	D	325	352	Right-handed alpha
Helix 68	68	D	353	357	Right-handed 310
Helix 69	69	D	362	370	Right-handed alpha
Helix 70	70	D	371	374	Right-handed 310
Helix 71	71	D	378	393	Right-handed alpha
Helix 72	72	R	35	47	Right-handed alpha
Helix 73	73	R	60	70	Right-handed alpha
Helix 74	74	R	82	85	Right-handed 310
Helix 75	75	R	91	104	Right-handed alpha
Helix 76	76	R	113	128	Right-handed alpha
Helix 77	77	R	170	173	Right-handed 310
Helix 78	78	R	223	226	Right-handed 310
Helix 79	79	R	228	230	Right-handed 310
Helix 80	80	R	231	238	Right-handed alpha
Helix 81	81	R	248	254	Right-handed alpha
Helix 82	82	R	258	262	Right-handed 310
Helix 83	83	R	283	288	Right-handed alpha
Helix 84	84	R	305	310	Right-handed 310
Helix 85	85	R	318	327	Right-handed alpha
Helix 86	86	S	39	55	Right-handed alpha
Helix 87	87	S	70	82	Right-handed alpha
Helix 88	88	S	92	98	Right-handed alpha
Helix 89	89	S	100	115	Right-handed alpha
Helix 90	90	S	133	142	Right-handed alpha
Helix 91	91	S	194	201	Right-handed alpha
Helix 92	92	S	210	215	Right-handed alpha
Helix 93	93	S	241	246	Right-handed alpha

There are 20 sheets in PDB entry 2A1T. 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 2 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	11	13	first strand
Strand 2	D	13	15	anti-parallel

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There are 3 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	131	134	first strand
Strand 2	A	175	181	parallel
Strand 3	A	194	200	anti-parallel

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There are 4 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	150	153	first strand
Strand 2	A	157	168	anti-parallel
Strand 3	A	222	233	anti-parallel
Strand 4	A	206	211	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	282	283	first strand
Strand 2	A	286	287	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	B	132	134	first strand
Strand 2	B	175	181	parallel
Strand 3	B	194	200	anti-parallel

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There are 4 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	150	153	first strand
Strand 2	B	157	168	anti-parallel
Strand 3	B	222	233	anti-parallel
Strand 4	B	206	211	anti-parallel

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There are 2 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	282	283	first strand
Strand 2	B	286	287	anti-parallel

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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	130	134	first strand
Strand 2	C	173	181	parallel
Strand 3	C	194	200	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	150	153	first strand
Strand 2	C	157	168	anti-parallel
Strand 3	C	222	233	anti-parallel
Strand 4	C	206	211	anti-parallel

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There are 2 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	282	283	first strand
Strand 2	C	286	287	anti-parallel

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There are 3 strands in K sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	130	134	first strand
Strand 2	D	173	181	parallel
Strand 3	D	194	200	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	150	153	first strand
Strand 2	D	157	168	anti-parallel
Strand 3	D	222	233	anti-parallel
Strand 4	D	206	208	anti-parallel

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There are 2 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	282	283	first strand
Strand 2	D	286	287	anti-parallel

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There are 3 strands in N sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	22	25	first strand
Strand 2	R	51	57	parallel
Strand 3	R	73	80	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	R	28	29	first strand
Strand 2	R	32	33	anti-parallel

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There are 3 strands in P sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	107	111	first strand
Strand 2	R	164	168	parallel
Strand 3	R	132	135	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	R	137	140	first strand
Strand 2	R	143	148	anti-parallel
Strand 3	R	153	158	anti-parallel
Strand 4	S	224	228	anti-parallel

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There are 10 strands in R sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	R	197	201	first strand
Strand 2	S	169	176	anti-parallel
Strand 3	S	159	166	anti-parallel
Strand 4	S	146	155	anti-parallel
Strand 5	S	179	183	parallel
Strand 6	S	119	123	parallel
Strand 7	S	4	9	parallel
Strand 8	S	58	67	parallel
Strand 9	S	85	90	parallel
Strand 10	S	206	209	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	R	244	247	first strand
Strand 2	R	217	221	parallel
Strand 3	R	274	278	parallel
Strand 4	R	295	299	parallel
Strand 5	R	313	315	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	S	12	14	first strand
Strand 2	S	36	38	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: 2A1T

Analysis of interatomic Contacts of Structural Units in PDB entry:
2A1T