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

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 2XTL entry

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

Chain ID	Initial residue	Terminal residue
A	GLU 192	THR 640
B	ASN 190	ILE 641

There are 12 helices in PDB entry 2XTL. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	1	A	207	211	Right-handed 310
Helix 2	2	A	269	271	Right-handed 310
Helix 3	3	A	287	299	Right-handed alpha
Helix 4	4	A	494	517	Right-handed alpha
Helix 5	5	A	519	524	Right-handed alpha
Helix 6	6	A	525	549	Right-handed alpha
Helix 7	7	B	207	211	Right-handed 310
Helix 8	8	B	269	271	Right-handed 310
Helix 9	9	B	287	298	Right-handed alpha
Helix 10	10	B	494	517	Right-handed alpha
Helix 11	11	B	519	525	Right-handed alpha
Helix 12	12	B	525	549	Right-handed alpha

There are 27 sheets in PDB entry 2XTL. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, BA, BB, BC, BD, BE, BF, BG, BH, BI, BJ, BK, BL, BM, BN,

There are 5 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	196	201	first strand
Strand 2	A	225	234	anti-parallel
Strand 3	A	303	313	anti-parallel
Strand 4	A	260	263	anti-parallel
Strand 5	A	266	267	anti-parallel

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There are 4 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	196	201	first strand
Strand 2	A	225	234	anti-parallel
Strand 3	A	303	313	anti-parallel
Strand 4	A	253	255	anti-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	A	217	219	first strand
Strand 2	A	453	455	parallel
Strand 3	A	323	324	anti-parallel

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There are 4 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	273	278	first strand
Strand 2	A	281	286	anti-parallel
Strand 3	A	242	248	anti-parallel
Strand 4	A	327	332	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	A	343	344	first strand
Strand 2	A	412	417	anti-parallel
Strand 3	A	366	381	anti-parallel
Strand 4	A	384	396	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	A	362	364	first strand
Strand 2	A	351	359	anti-parallel

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There are 2 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	399	403	first strand
Strand 2	A	351	359	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	422	429	first strand
Strand 2	A	432	439	anti-parallel
Strand 3	A	351	359	parallel
Strand 4	A	362	364	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	422	429	first strand
Strand 2	A	432	439	anti-parallel
Strand 3	A	351	359	parallel
Strand 4	A	399	403	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	574	580	first strand
Strand 2	A	457	464	anti-parallel
Strand 3	A	632	635	parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	552	556	first strand
Strand 2	A	484	489	anti-parallel
Strand 3	A	476	481	anti-parallel
Strand 4	A	567	568	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	552	556	first strand
Strand 2	A	484	489	anti-parallel
Strand 3	A	476	481	anti-parallel
Strand 4	A	583	591	anti-parallel
Strand 5	A	603	607	anti-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	A	567	568	first strand
Strand 2	A	476	481	anti-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	B	196	201	first strand
Strand 2	B	225	234	anti-parallel
Strand 3	B	303	313	anti-parallel
Strand 4	B	260	263	anti-parallel
Strand 5	B	266	267	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	B	196	201	first strand
Strand 2	B	225	234	anti-parallel
Strand 3	B	303	313	anti-parallel
Strand 4	B	253	255	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	217	219	first strand
Strand 2	B	453	455	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	B	273	278	first strand
Strand 2	B	281	286	anti-parallel
Strand 3	B	242	248	anti-parallel
Strand 4	B	327	332	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	343	344	first strand
Strand 2	B	412	417	anti-parallel
Strand 3	B	374	381	anti-parallel
Strand 4	B	384	392	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	362	364	first strand
Strand 2	B	351	359	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	B	399	403	first strand
Strand 2	B	351	359	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	422	429	first strand
Strand 2	B	432	439	anti-parallel
Strand 3	B	351	359	parallel
Strand 4	B	362	364	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	422	429	first strand
Strand 2	B	432	439	anti-parallel
Strand 3	B	351	359	parallel
Strand 4	B	399	403	anti-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	B	366	370	first strand
Strand 2	B	395	396	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	574	580	first strand
Strand 2	B	457	464	anti-parallel
Strand 3	B	629	635	parallel
Strand 4	B	620	621	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	552	556	first strand
Strand 2	B	484	489	anti-parallel
Strand 3	B	476	481	anti-parallel
Strand 4	B	567	568	anti-parallel

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

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	B	552	556	first strand
Strand 2	B	484	489	anti-parallel
Strand 3	B	476	481	anti-parallel
Strand 4	B	583	591	anti-parallel
Strand 5	B	603	607	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	B	567	568	first strand
Strand 2	B	476	481	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: 2XTL

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