Analysis of interatomic Contacts of Structural Units in PDB entry:
1XN2

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 1XN2 entry

There are 12 chains in PDB entry 1XN2 (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	GLY 45	ASN 385
B	GLY 45	ASN 385
C	GLY 45	ASN 385
D	GLY 45	ASN 385
E	TRP 3	ASN 8
E	ALA 10	PHE 12
F	TRP 3	ASN 8
F	ALA 10	PHE 12
G	TRP 3	ASN 8
G	ALA 10	PHE 12
H	TRP 3	ASN 8
H	ALA 10	PHE 12

There are 51 helices in PDB entry 1XN2. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	47	3	Right-handed 310
Helix 2	2	A	53	57	Right-handed 310
Helix 3	3	A	123	127	Right-handed 310
Helix 4	4	A	135	144	Right-handed alpha
Helix 5	5	A	162	169	Right-handed alpha
Helix 6	6	A	180	182	Right-handed 310
Helix 7	7	A	216	222	Right-handed 310
Helix 8	8	A	238	252	Right-handed alpha
Helix 9	9	A	258	263	Right-handed alpha
Helix 10	10	A	276	280	Right-handed 310
Helix 11	11	A	301	305	Right-handed alpha
Helix 12	12	A	334	339	Right-handed alpha
Helix 13	13	A	378	383	Right-handed 310
Helix 14	14	B	47	3	Right-handed 310
Helix 15	15	B	53	57	Right-handed 310
Helix 16	16	B	123	127	Right-handed 310
Helix 17	17	B	135	144	Right-handed alpha
Helix 18	18	B	162	169	Right-handed alpha
Helix 19	19	B	180	182	Right-handed 310
Helix 20	20	B	216	222	Right-handed 310
Helix 21	21	B	238	252	Right-handed alpha
Helix 22	22	B	258	263	Right-handed alpha
Helix 23	23	B	276	280	Right-handed 310
Helix 24	24	B	301	305	Right-handed alpha
Helix 25	25	B	334	339	Right-handed alpha
Helix 26	26	B	347	349	Right-handed 310
Helix 27	27	B	378	383	Right-handed 310
Helix 28	28	C	53	57	Right-handed 310
Helix 29	29	C	123	127	Right-handed 310
Helix 30	30	C	135	144	Right-handed alpha
Helix 31	31	C	162	169	Right-handed alpha
Helix 32	32	C	180	182	Right-handed 310
Helix 33	33	C	216	221	Right-handed alpha
Helix 34	34	C	238	252	Right-handed alpha
Helix 35	35	C	258	263	Right-handed alpha
Helix 36	36	C	276	280	Right-handed 310
Helix 37	37	C	301	305	Right-handed alpha
Helix 38	38	C	334	339	Right-handed alpha
Helix 39	39	C	378	383	Right-handed 310
Helix 40	40	D	53	57	Right-handed 310
Helix 41	41	D	123	127	Right-handed 310
Helix 42	42	D	135	144	Right-handed alpha
Helix 43	43	D	162	169	Right-handed alpha
Helix 44	44	D	180	182	Right-handed 310
Helix 45	45	D	218	222	Right-handed 310
Helix 46	46	D	238	252	Right-handed alpha
Helix 47	47	D	258	263	Right-handed alpha
Helix 48	48	D	276	280	Right-handed 310
Helix 49	49	D	301	305	Right-handed alpha
Helix 50	50	D	334	339	Right-handed alpha
Helix 51	51	D	378	383	Right-handed 310

There are 24 sheets in PDB entry 1XN2. 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,

There are 8 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	6	9	first strand
Strand 2	A	13	20	anti-parallel
Strand 3	A	25	32	anti-parallel
Strand 4	A	117	120	parallel
Strand 5	A	38	41	anti-parallel
Strand 6	A	94	106	parallel
Strand 7	A	75	86	anti-parallel
Strand 8	A	61	70	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	A	6	9	first strand
Strand 2	A	13	20	anti-parallel
Strand 3	A	75	86	anti-parallel
Strand 4	A	61	70	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	172	176	first strand
Strand 2	A	150	154	anti-parallel
Strand 3	A	341	346	anti-parallel
Strand 4	A	351	357	anti-parallel
Strand 5	A	184	192	anti-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	211	212	first strand
Strand 2	A	203	208	anti-parallel
Strand 3	A	283	288	anti-parallel
Strand 4	A	294	300	anti-parallel
Strand 5	A	369	375	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	A	225	227	first strand
Strand 2	A	331	333	parallel
Strand 3	A	234	237	anti-parallel
Strand 4	A	324	327	parallel

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There are 3 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	268	270	first strand
Strand 2	A	318	322	anti-parallel
Strand 3	A	306	309	anti-parallel

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There are 8 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	6	9	first strand
Strand 2	B	13	20	anti-parallel
Strand 3	B	25	32	anti-parallel
Strand 4	B	117	120	parallel
Strand 5	B	38	41	anti-parallel
Strand 6	B	95	106	parallel
Strand 7	B	75	86	anti-parallel
Strand 8	B	61	70	anti-parallel

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There are 4 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	6	9	first strand
Strand 2	B	13	20	anti-parallel
Strand 3	B	75	86	anti-parallel
Strand 4	B	61	70	anti-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	172	176	first strand
Strand 2	B	150	154	anti-parallel
Strand 3	B	341	346	anti-parallel
Strand 4	B	351	357	anti-parallel
Strand 5	B	184	192	anti-parallel

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There are 5 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	211	212	first strand
Strand 2	B	203	208	anti-parallel
Strand 3	B	283	288	anti-parallel
Strand 4	B	294	300	anti-parallel
Strand 5	B	369	375	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	B	225	227	first strand
Strand 2	B	331	333	parallel
Strand 3	B	234	237	anti-parallel
Strand 4	B	324	327	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	B	268	270	first strand
Strand 2	B	318	322	anti-parallel
Strand 3	B	306	309	anti-parallel

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There are 8 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	6	9	first strand
Strand 2	C	13	20	anti-parallel
Strand 3	C	25	32	anti-parallel
Strand 4	C	117	120	parallel
Strand 5	C	38	41	anti-parallel
Strand 6	C	94	106	parallel
Strand 7	C	75	86	anti-parallel
Strand 8	C	61	70	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	6	9	first strand
Strand 2	C	13	20	anti-parallel
Strand 3	C	75	86	anti-parallel
Strand 4	C	61	70	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	C	172	176	first strand
Strand 2	C	150	154	anti-parallel
Strand 3	C	341	346	anti-parallel
Strand 4	C	351	357	anti-parallel
Strand 5	C	184	192	anti-parallel

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There are 5 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	211	212	first strand
Strand 2	C	203	208	anti-parallel
Strand 3	C	283	288	anti-parallel
Strand 4	C	294	300	anti-parallel
Strand 5	C	369	375	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	C	225	227	first strand
Strand 2	C	331	333	parallel
Strand 3	C	234	237	anti-parallel
Strand 4	C	324	327	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	268	270	first strand
Strand 2	C	318	322	anti-parallel
Strand 3	C	306	309	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	6	9	first strand
Strand 2	D	13	20	anti-parallel
Strand 3	D	25	32	anti-parallel
Strand 4	D	117	120	parallel
Strand 5	D	38	41	anti-parallel
Strand 6	D	95	106	parallel
Strand 7	D	75	86	anti-parallel
Strand 8	D	61	70	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	D	6	9	first strand
Strand 2	D	13	20	anti-parallel
Strand 3	D	75	86	anti-parallel
Strand 4	D	61	70	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	172	176	first strand
Strand 2	D	150	154	anti-parallel
Strand 3	D	341	346	anti-parallel
Strand 4	D	351	357	anti-parallel
Strand 5	D	184	192	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	211	212	first strand
Strand 2	D	203	208	anti-parallel
Strand 3	D	283	288	anti-parallel
Strand 4	D	294	300	anti-parallel
Strand 5	D	369	375	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	225	227	first strand
Strand 2	D	331	333	parallel
Strand 3	D	234	237	anti-parallel
Strand 4	D	324	327	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	268	270	first strand
Strand 2	D	318	322	anti-parallel
Strand 3	D	306	309	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: 1XN2

Analysis of interatomic Contacts of Structural Units in PDB entry:
1XN2