Analysis of interatomic Contacts of Structural Units in PDB entry:
3AL4

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 3AL4 entry

There are 5 chains in PDB entry 3AL4 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ASP 7	ILE 327
B	GLY 1	TYR 162
C	ASP 7	ILE 327
D	GLY 1	TYR 162
E	ASP 7	LYS 311

There are 41 helices in PDB entry 3AL4. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	62	69	Right-handed alpha
Helix 2	2	A	103	112	Right-handed alpha
Helix 3	3	A	124	129	Right-handed alpha
Helix 4	4	A	190	198	Right-handed alpha
Helix 5	5	B	37	58	Right-handed alpha
Helix 6	6	B	74	124	Right-handed alpha
Helix 7	7	B	145	154	Right-handed alpha
Helix 8	8	C	62	69	Right-handed alpha
Helix 9	9	C	103	112	Right-handed alpha
Helix 10	10	C	190	198	Right-handed alpha
Helix 11	11	D	37	58	Right-handed alpha
Helix 12	12	D	74	124	Right-handed alpha
Helix 13	13	D	145	154	Right-handed alpha
Helix 14	14	E	62	69	Right-handed alpha
Helix 15	15	E	103	112	Right-handed alpha
Helix 16	16	E	124	129	Right-handed alpha
Helix 17	17	E	190	198	Right-handed alpha
Helix 18	18	F	37	58	Right-handed alpha
Helix 19	19	F	74	126	Right-handed alpha
Helix 20	20	F	145	154	Right-handed alpha
Helix 21	21	G	62	69	Right-handed alpha
Helix 22	22	G	70	74	Right-handed 310
Helix 23	23	G	103	112	Right-handed alpha
Helix 24	24	G	124	129	Right-handed alpha
Helix 25	25	G	190	198	Right-handed alpha
Helix 26	26	H	37	58	Right-handed alpha
Helix 27	27	H	74	124	Right-handed alpha
Helix 28	28	H	145	154	Right-handed alpha
Helix 29	29	I	62	69	Right-handed alpha
Helix 30	30	I	103	112	Right-handed alpha
Helix 31	31	I	190	199	Right-handed alpha
Helix 32	32	J	37	58	Right-handed alpha
Helix 33	33	J	74	124	Right-handed alpha
Helix 34	34	J	145	154	Right-handed alpha
Helix 35	35	K	62	69	Right-handed alpha
Helix 36	36	K	103	112	Right-handed alpha
Helix 37	37	K	124	129	Right-handed alpha
Helix 38	38	K	190	199	Right-handed alpha
Helix 39	39	L	37	58	Right-handed alpha
Helix 40	40	L	74	124	Right-handed alpha
Helix 41	41	L	145	154	Right-handed alpha

There are 69 sheets in PDB entry 3AL4. 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, U, V, W, X, Y, Z, AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN, AO, AP, AQ, AR, AS, AT, AU, AV, AW, AX, AY, AZ, BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL, BM, BN, BO, BP, BQ,

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	B	13	14	first strand
Strand 2	A	8	14	parallel
Strand 3	B	23	28	anti-parallel
Strand 4	B	31	36	anti-parallel

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There are 4 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	13	14	first strand
Strand 2	A	8	14	parallel
Strand 3	B	137	140	anti-parallel
Strand 4	B	130	132	anti-parallel

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There are 2 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	21	22	first strand
Strand 2	A	30	31	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	35	37	first strand
Strand 2	A	319	321	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	39	40	first strand
Strand 2	A	298	299	parallel
Strand 3	A	311	312	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	47	49	first strand
Strand 2	A	278	282	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	56	57	first strand
Strand 2	A	85	87	parallel
Strand 3	A	271	273	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	A	114	121	first strand
Strand 2	A	259	265	anti-parallel
Strand 3	A	178	187	anti-parallel
Strand 4	A	254	257	anti-parallel
Strand 5	A	154	156	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	A	114	121	first strand
Strand 2	A	259	265	anti-parallel
Strand 3	A	178	187	anti-parallel
Strand 4	A	232	240	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	A	139	144	first strand
Strand 2	A	147	149	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	170	172	first strand
Strand 2	A	245	250	anti-parallel
Strand 3	A	205	208	anti-parallel
Strand 4	A	213	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	285	286	first strand
Strand 2	A	306	307	anti-parallel
Strand 3	B	64	65	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	D	31	36	first strand
Strand 2	D	22	28	anti-parallel
Strand 3	C	8	13	anti-parallel
Strand 4	D	137	140	anti-parallel
Strand 5	D	130	132	anti-parallel

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There are 2 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	21	22	first strand
Strand 2	C	30	31	anti-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	35	37	first strand
Strand 2	C	319	321	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	C	39	40	first strand
Strand 2	C	298	299	parallel
Strand 3	C	311	312	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	47	49	first strand
Strand 2	C	278	282	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	56	57	first strand
Strand 2	C	85	87	parallel
Strand 3	C	271	273	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	C	114	121	first strand
Strand 2	C	259	265	anti-parallel
Strand 3	C	178	187	anti-parallel
Strand 4	C	254	257	anti-parallel
Strand 5	C	154	156	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	114	121	first strand
Strand 2	C	259	265	anti-parallel
Strand 3	C	178	187	anti-parallel
Strand 4	C	232	240	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	139	144	first strand
Strand 2	C	147	149	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	167	172	first strand
Strand 2	C	245	250	anti-parallel
Strand 3	C	205	208	anti-parallel
Strand 4	C	213	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	C	285	286	first strand
Strand 2	C	306	307	anti-parallel
Strand 3	D	64	65	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	F	32	36	first strand
Strand 2	F	22	27	anti-parallel
Strand 3	E	9	13	anti-parallel
Strand 4	F	137	140	anti-parallel
Strand 5	F	130	132	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	21	22	first strand
Strand 2	E	30	31	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	35	37	first strand
Strand 2	E	319	321	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	39	40	first strand
Strand 2	E	298	299	parallel
Strand 3	E	311	312	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	47	49	first strand
Strand 2	E	278	282	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	56	57	first strand
Strand 2	E	85	87	parallel
Strand 3	E	271	273	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	114	120	first strand
Strand 2	E	260	265	anti-parallel
Strand 3	E	178	187	anti-parallel
Strand 4	E	254	257	anti-parallel
Strand 5	E	154	156	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	114	120	first strand
Strand 2	E	260	265	anti-parallel
Strand 3	E	178	187	anti-parallel
Strand 4	E	232	240	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	139	144	first strand
Strand 2	E	147	149	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	167	172	first strand
Strand 2	E	245	250	anti-parallel
Strand 3	E	205	208	anti-parallel
Strand 4	E	213	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	E	290	291	first strand
Strand 2	E	285	287	anti-parallel
Strand 3	E	306	307	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	12	13	first strand
Strand 2	H	22	25	anti-parallel
Strand 3	H	34	36	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	21	22	first strand
Strand 2	G	30	31	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	35	37	first strand
Strand 2	G	319	321	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	39	40	first strand
Strand 2	G	298	299	parallel
Strand 3	G	311	312	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	47	49	first strand
Strand 2	G	278	282	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	56	57	first strand
Strand 2	G	85	87	parallel
Strand 3	G	271	273	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	114	121	first strand
Strand 2	G	259	265	anti-parallel
Strand 3	G	178	187	anti-parallel
Strand 4	G	254	257	anti-parallel
Strand 5	G	154	156	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	114	121	first strand
Strand 2	G	259	265	anti-parallel
Strand 3	G	178	187	anti-parallel
Strand 4	G	232	240	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	143	144	first strand
Strand 2	G	147	148	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	167	172	first strand
Strand 2	G	245	250	anti-parallel
Strand 3	G	205	208	anti-parallel
Strand 4	G	213	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	285	286	first strand
Strand 2	G	306	307	anti-parallel
Strand 3	H	64	65	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	H	130	132	first strand
Strand 2	H	138	140	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	32	36	first strand
Strand 2	J	22	27	anti-parallel
Strand 3	I	8	13	anti-parallel
Strand 4	J	137	140	anti-parallel
Strand 5	J	130	132	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	21	22	first strand
Strand 2	I	30	31	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	35	37	first strand
Strand 2	I	319	321	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	39	40	first strand
Strand 2	I	298	299	parallel
Strand 3	I	311	312	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	47	49	first strand
Strand 2	I	278	282	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	56	57	first strand
Strand 2	I	85	87	parallel
Strand 3	I	271	273	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	114	121	first strand
Strand 2	I	259	265	anti-parallel
Strand 3	I	178	187	anti-parallel
Strand 4	I	254	257	anti-parallel
Strand 5	I	154	156	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	114	121	first strand
Strand 2	I	259	265	anti-parallel
Strand 3	I	178	187	anti-parallel
Strand 4	I	232	240	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	I	139	144	first strand
Strand 2	I	147	149	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	167	172	first strand
Strand 2	I	245	250	anti-parallel
Strand 3	I	205	208	anti-parallel
Strand 4	I	213	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	I	285	286	first strand
Strand 2	I	306	307	anti-parallel
Strand 3	J	64	65	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	8	10	first strand
Strand 2	L	137	140	anti-parallel
Strand 3	L	130	132	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	21	22	first strand
Strand 2	K	30	31	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	35	37	first strand
Strand 2	K	319	321	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	39	40	first strand
Strand 2	K	298	299	parallel
Strand 3	K	311	312	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	47	49	first strand
Strand 2	K	278	282	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	56	57	first strand
Strand 2	K	85	87	parallel
Strand 3	K	271	273	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	114	121	first strand
Strand 2	K	259	265	anti-parallel
Strand 3	K	179	187	anti-parallel
Strand 4	K	254	257	anti-parallel
Strand 5	K	154	156	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	114	121	first strand
Strand 2	K	259	265	anti-parallel
Strand 3	K	179	187	anti-parallel
Strand 4	K	232	240	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	139	144	first strand
Strand 2	K	147	149	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	167	172	first strand
Strand 2	K	245	250	anti-parallel
Strand 3	K	205	208	anti-parallel
Strand 4	K	213	216	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	K	285	286	first strand
Strand 2	K	306	307	anti-parallel
Strand 3	L	64	65	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	L	23	28	first strand
Strand 2	L	31	36	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: 3AL4

Analysis of interatomic Contacts of Structural Units in PDB entry:
3AL4