Analysis of interatomic Contacts of Structural Units in PDB entry:
23LO

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 23LO entry

There are 6 chains in PDB entry 23LO (CSU analysis of residue contacts immediately below table)

Chain ID	Initial residue	Terminal residue
A	ALA 4	ARG 511
D	LEU 2	GLU 509
G	ALA 4	ARG 511
J	MET 1	ARG 511
M	ALA 4	ARG 511
P	ALA 4	ARG 511

There are102 helices in PDB entry 23LO. Click on helix of interest for CSU analysis.

Helix number	Helix ID	Chain ID	Initial residue	Terminal residue	Helix class
Helix 1	AA1	A	16	26	Right-handed alpha
Helix 2	AA2	A	51	60	Right-handed alpha
Helix 3	AA3	A	62	70	Right-handed alpha
Helix 4	AA4	A	87	92	Right-handed 310
Helix 5	AA5	A	102	117	Right-handed alpha
Helix 6	AA6	A	163	169	Right-handed alpha
Helix 7	AA7	A	191	195	Right-handed 310
Helix 8	AA8	A	241	245	Right-handed 310
Helix 9	AA9	A	250	263	Right-handed alpha
Helix 10	AB1	A	296	298	Right-handed 310
Helix 11	AB2	A	308	330	Right-handed alpha
Helix 12	AB3	A	333	335	Right-handed 310
Helix 13	AB4	A	336	362	Right-handed alpha
Helix 14	AB5	A	365	379	Right-handed alpha
Helix 15	AB6	A	381	394	Right-handed alpha
Helix 16	AB7	A	430	434	Right-handed 310
Helix 17	AB8	A	447	454	Right-handed alpha
Helix 18	AB9	A	455	457	Right-handed 310
Helix 19	AC1	A	496	505	Right-handed alpha
Helix 20	AC2	D	14	27	Right-handed alpha
Helix 21	AC3	D	51	60	Right-handed alpha
Helix 22	AC4	D	62	70	Right-handed alpha
Helix 23	AC5	D	89	92	Right-handed 310
Helix 24	AC6	D	102	118	Right-handed alpha
Helix 25	AC7	D	163	169	Right-handed alpha
Helix 26	AC8	D	250	262	Right-handed alpha
Helix 27	AC9	D	296	298	Right-handed 310
Helix 28	AD1	D	308	329	Right-handed alpha
Helix 29	AD2	D	333	337	Right-handed 310
Helix 30	AD3	D	338	362	Right-handed alpha
Helix 31	AD4	D	365	381	Right-handed alpha
Helix 32	AD5	D	381	393	Right-handed alpha
Helix 33	AD6	D	429	433	Right-handed alpha
Helix 34	AD7	D	434	436	Right-handed 310
Helix 35	AD8	D	447	454	Right-handed alpha
Helix 36	AD9	D	455	457	Right-handed 310
Helix 37	AE1	D	495	507	Right-handed alpha
Helix 38	AE2	G	14	27	Right-handed alpha
Helix 39	AE3	G	52	60	Right-handed alpha
Helix 40	AE4	G	62	70	Right-handed alpha
Helix 41	AE5	G	89	92	Right-handed 310
Helix 42	AE6	G	102	117	Right-handed alpha
Helix 43	AE7	G	163	169	Right-handed alpha
Helix 44	AE8	G	250	257	Right-handed alpha
Helix 45	AE9	G	296	298	Right-handed 310
Helix 46	AF1	G	309	330	Right-handed alpha
Helix 47	AF2	G	333	336	Right-handed 310
Helix 48	AF3	G	337	362	Right-handed alpha
Helix 49	AF4	G	365	379	Right-handed alpha
Helix 50	AF5	G	381	394	Right-handed alpha
Helix 51	AF6	G	429	433	Right-handed alpha
Helix 52	AF7	G	434	436	Right-handed 310
Helix 53	AF8	G	447	453	Right-handed alpha
Helix 54	AF9	G	454	457	Right-handed 310
Helix 55	AG1	G	495	506	Right-handed alpha
Helix 56	AG2	J	14	27	Right-handed alpha
Helix 57	AG3	J	51	60	Right-handed alpha
Helix 58	AG4	J	62	70	Right-handed alpha
Helix 59	AG5	J	89	92	Right-handed 310
Helix 60	AG6	J	102	118	Right-handed alpha
Helix 61	AG7	J	163	170	Right-handed alpha
Helix 62	AG8	J	241	245	Right-handed 310
Helix 63	AG9	J	250	263	Right-handed alpha
Helix 64	AH1	J	296	298	Right-handed 310
Helix 65	AH2	J	308	330	Right-handed alpha
Helix 66	AH3	J	335	363	Right-handed alpha
Helix 67	AH4	J	365	379	Right-handed alpha
Helix 68	AH5	J	381	394	Right-handed alpha
Helix 69	AH6	J	430	432	Right-handed 310
Helix 70	AH7	J	447	451	Right-handed 310
Helix 71	AH8	J	453	457	Right-handed 310
Helix 72	AH9	J	498	506	Right-handed alpha
Helix 73	AI1	M	14	27	Right-handed alpha
Helix 74	AI2	M	52	60	Right-handed alpha
Helix 75	AI3	M	62	70	Right-handed alpha
Helix 76	AI4	M	89	92	Right-handed 310
Helix 77	AI5	M	102	118	Right-handed alpha
Helix 78	AI6	M	163	168	Right-handed alpha
Helix 79	AI7	M	250	260	Right-handed alpha
Helix 80	AI8	M	308	329	Right-handed alpha
Helix 81	AI9	M	334	362	Right-handed alpha
Helix 82	AJ1	M	367	381	Right-handed alpha
Helix 83	AJ2	M	381	392	Right-handed alpha
Helix 84	AJ3	M	428	432	Right-handed 310
Helix 85	AJ4	M	447	454	Right-handed alpha
Helix 86	AJ5	M	455	457	Right-handed 310
Helix 87	AJ6	M	497	505	Right-handed alpha
Helix 88	AJ7	P	14	27	Right-handed alpha
Helix 89	AJ8	P	52	61	Right-handed alpha
Helix 90	AJ9	P	62	70	Right-handed alpha
Helix 91	AK1	P	102	117	Right-handed alpha
Helix 92	AK2	P	163	169	Right-handed alpha
Helix 93	AK3	P	254	262	Right-handed alpha
Helix 94	AK4	P	296	299	Right-handed 310
Helix 95	AK5	P	309	330	Right-handed alpha
Helix 96	AK6	P	334	362	Right-handed alpha
Helix 97	AK7	P	365	379	Right-handed alpha
Helix 98	AK8	P	381	394	Right-handed alpha
Helix 99	AK9	P	430	432	Right-handed 310
Helix 100	AL1	P	447	453	Right-handed alpha
Helix 101	AL2	P	454	457	Right-handed 310
Helix 102	AL3	P	497	506	Right-handed alpha

There are 42 sheets in PDB entry 23LO. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9, AB1, AB2, AB3, AB4, AB5, AB6, AB7, AB8, AB9, AC1, AC2, AC3, AC4, AC5, AC6, AC7, AC8, AC9, AD1, AD2, AD3, AD4, AD5, AD6, AD7, AD8, AD9, AE1, AE2, AE3, AE4, AE5, AE6,

There are 6 strands in AA1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	120	121	first strand
Strand 2	A	32	34	parallel
Strand 3	A	6	11	parallel
Strand 4	A	147	157	parallel
Strand 5	A	137	142	anti-parallel
Strand 6	A	126	132	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AA2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	120	121	first strand
Strand 2	A	32	34	parallel
Strand 3	A	6	11	parallel
Strand 4	A	147	157	parallel
Strand 5	A	292	294	parallel
Strand 6	A	288	289	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AA3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	49	50	first strand
Strand 2	A	98	99	anti-parallel
Strand 3	A	73	74	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AA4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	80	81	first strand
Strand 2	A	84	85	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AA5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	214	216	first strand
Strand 2	A	221	227	anti-parallel
Strand 3	A	230	237	anti-parallel
Strand 4	A	175	187	anti-parallel
Strand 5	A	273	283	anti-parallel
Strand 6	A	300	301	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AA6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	426	428	first strand
Strand 2	A	419	421	anti-parallel
Strand 3	A	466	467	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AA7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	A	461	463	first strand
Strand 2	A	439	442	parallel
Strand 3	A	476	479	anti-parallel
Strand 4	A	485	489	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AA8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	122	123	first strand
Strand 2	D	32	35	parallel
Strand 3	D	6	11	parallel
Strand 4	D	147	157	parallel
Strand 5	D	137	142	anti-parallel
Strand 6	D	126	132	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AA9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	122	123	first strand
Strand 2	D	32	35	parallel
Strand 3	D	6	11	parallel
Strand 4	D	147	157	parallel
Strand 5	D	292	294	parallel
Strand 6	D	288	289	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AB1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	73	74	first strand
Strand 2	D	98	99	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AB2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	78	81	first strand
Strand 2	D	84	87	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AB3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	215	216	first strand
Strand 2	D	221	227	anti-parallel
Strand 3	D	230	237	anti-parallel
Strand 4	D	175	188	anti-parallel
Strand 5	D	272	283	anti-parallel
Strand 6	D	300	301	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AB4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	419	421	first strand
Strand 2	D	426	428	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AB5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	D	461	463	first strand
Strand 2	D	439	441	parallel
Strand 3	D	476	479	anti-parallel
Strand 4	D	485	489	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AB6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	120	123	first strand
Strand 2	G	32	35	parallel
Strand 3	G	8	11	parallel
Strand 4	G	154	157	parallel
Strand 5	G	292	294	parallel
Strand 6	G	288	289	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AB7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	73	74	first strand
Strand 2	G	98	99	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AB8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	78	81	first strand
Strand 2	G	84	87	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AB9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	126	132	first strand
Strand 2	G	137	142	anti-parallel
Strand 3	G	147	152	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AC1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	215	217	first strand
Strand 2	G	220	224	anti-parallel
Strand 3	G	233	237	anti-parallel
Strand 4	G	175	185	anti-parallel
Strand 5	G	275	283	anti-parallel
Strand 6	G	300	301	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AC2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	202	203	first strand
Strand 2	G	209	210	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AC3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	426	428	first strand
Strand 2	G	419	421	anti-parallel
Strand 3	G	466	467	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AC4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	G	461	464	first strand
Strand 2	G	439	442	parallel
Strand 3	G	476	479	anti-parallel
Strand 4	G	485	488	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AC5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	120	123	first strand
Strand 2	J	32	35	parallel
Strand 3	J	6	11	parallel
Strand 4	J	147	157	parallel
Strand 5	J	137	142	anti-parallel
Strand 6	J	126	132	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AC6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	120	123	first strand
Strand 2	J	32	35	parallel
Strand 3	J	6	11	parallel
Strand 4	J	147	157	parallel
Strand 5	J	292	294	parallel
Strand 6	J	288	289	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AC7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	48	50	first strand
Strand 2	J	98	100	anti-parallel
Strand 3	J	72	74	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AC8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	78	81	first strand
Strand 2	J	84	87	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AC9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	213	217	first strand
Strand 2	J	220	227	anti-parallel
Strand 3	J	230	237	anti-parallel
Strand 4	J	175	189	anti-parallel
Strand 5	J	269	283	anti-parallel
Strand 6	J	300	301	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AD1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	J	426	428	first strand
Strand 2	J	419	422	anti-parallel
Strand 3	J	461	467	anti-parallel
Strand 4	J	439	442	parallel
Strand 5	J	476	479	anti-parallel
Strand 6	J	485	487	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AD2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	120	123	first strand
Strand 2	M	32	35	parallel
Strand 3	M	6	11	parallel
Strand 4	M	147	157	parallel
Strand 5	M	137	142	anti-parallel
Strand 6	M	126	132	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AD3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	120	123	first strand
Strand 2	M	32	35	parallel
Strand 3	M	6	11	parallel
Strand 4	M	147	157	parallel
Strand 5	M	292	294	parallel
Strand 6	M	288	289	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AD4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	72	74	first strand
Strand 2	M	98	100	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AD5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	78	81	first strand
Strand 2	M	84	87	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AD6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	175	177	first strand
Strand 2	M	280	283	anti-parallel
Strand 3	M	300	301	anti-parallel

Back to list of sheets
Back to top of page

There are 5 strands in AD7 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	215	216	first strand
Strand 2	M	221	223	anti-parallel
Strand 3	M	234	237	anti-parallel
Strand 4	M	182	185	anti-parallel
Strand 5	M	275	277	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AD8 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	425	427	first strand
Strand 2	M	420	422	anti-parallel
Strand 3	M	466	467	anti-parallel

Back to list of sheets
Back to top of page

There are 4 strands in AD9 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	M	461	464	first strand
Strand 2	M	439	442	parallel
Strand 3	M	476	479	anti-parallel
Strand 4	M	485	489	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AE1 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	120	123	first strand
Strand 2	P	32	35	parallel
Strand 3	P	6	11	parallel
Strand 4	P	146	157	parallel
Strand 5	P	137	143	anti-parallel
Strand 6	P	126	132	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AE2 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	120	123	first strand
Strand 2	P	32	35	parallel
Strand 3	P	6	11	parallel
Strand 4	P	146	157	parallel
Strand 5	P	292	294	parallel
Strand 6	P	288	289	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AE3 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	73	74	first strand
Strand 2	P	98	99	anti-parallel

Back to list of sheets
Back to top of page

There are 3 strands in AE4 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	234	237	first strand
Strand 2	P	175	185	anti-parallel
Strand 3	P	276	282	anti-parallel

Back to list of sheets
Back to top of page

There are 2 strands in AE5 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	215	216	first strand
Strand 2	P	221	222	anti-parallel

Back to list of sheets
Back to top of page

There are 6 strands in AE6 sheet. Click on strand of interest for CSU analysis.

Strand number	Chain ID	Initial residue	Terminal residue	Strand sense
Strand 1	P	425	428	first strand
Strand 2	P	419	422	anti-parallel
Strand 3	P	461	467	anti-parallel
Strand 4	P	439	442	parallel
Strand 5	P	476	479	anti-parallel
Strand 6	P	485	489	anti-parallel

Back to list of sheets
Back to top of page

Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il

Analysis of interatomic Contacts of Structural Units in PDB entry: 23LO

Analysis of interatomic Contacts of Structural Units in PDB entry:
23LO