4COO - JenaLib

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF HUMAN CYSTATHIONINE BETA-SYNTHASE (DELTA516-525) AT 2.0 ANGSTROM RESOLUTION

Authors :   T. J. Mccorvie, J. Kopec, M. Vollamar, C. Strain-Damerell, S. Bushell, A. Bradley, C. Tallant, W. Kiyani, D. S. Froese, E. S. Carpenter, N. Burgess-Brown, F. Von Delft, C. Arrowsmith, A. Edwards, C. Bountr W. W. Yue

Date :   29 Jan 14 (Deposition) - 05 Mar 14 (Release) - 14 Jan 15 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.00

Chains :   Asym./Biol. Unit : A,B

Keywords :   Lyase, Methionine Cycle, Metabolic Pathway, Allosteric Regulation, Serine Metabolism (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   T. J. Mccorvie, J. Kopec, S. Hyung, F. Fitzpatrick, X. Feng, D. Termine C. Strain-Damerell, M. Vollmar, J. Fleming, J. M. Janz, C. Bulawa, W. W. Yue
Inter-Domain Communication Of Human Cystathionine Beta Synthase: Structural Basis Of S-Adenosyl-L-Methionine Activation.
J. Biol. Chem. V. 289 36018 2014
PubMed-ID: 25336647 | Reference-DOI: 10.1074/JBC.M114.610782

Molecule 1 - CYSTATHIONINE BETA-SYNTHASE
	Chains	:	A, B
	EC Number	:	4.2.1.22
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Expression System Variant	:	R3-PRARE2
	Expression System Vector	:	PNIC28-BSA4
	Expression System Vector Type	:	PLASMID
	Fragment	:	CATALYTIC AND REGULATORY DOMAINS, RESIDUES 1-515,526-551
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	BETA-THIONASE, SERINE SULFHYDRASE

		1	2
Asymmetric/Biological Unit	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (6, 19)

No.	Name	Count	Type	Full Name
1	ACT	5	Ligand/Ion	ACETATE ION
2	EDO	7	Ligand/Ion	1,2-ETHANEDIOL
3	HEM	2	Ligand/Ion	PROTOPORPHYRIN IX CONTAINING FE
4	NA	2	Ligand/Ion	SODIUM ION
5	PE4	1	Ligand/Ion	2-{2-[2-(2-{2-[2-(2-ETHOXY-ETHOXY)-ETHOXY]-ETHOXY}-ETHOXY)-ETHOXY]-ETHOXY}-ETHANOL
6	PLP	2	Ligand/Ion	PYRIDOXAL-5'-PHOSPHATE

Asymmetric Unit (19, 19)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	SER A:50 , ARG A:51 , CYS A:52 , THR A:53 , TRP A:54 , GLU A:62 , SER A:63 , PRO A:64 , HIS A:65 , ARG A:224 , ALA A:226 , LEU A:230 , TYR A:233 , ARG A:266 , EDO A:1552 , HOH A:2091 , HOH A:2096	BINDING SITE FOR RESIDUE HEM A1549
02	AC2	SOFTWARE	SER B:50 , ARG B:51 , CYS B:52 , THR B:53 , PRO B:59 , GLU B:62 , SER B:63 , PRO B:64 , HIS B:65 , ALA B:226 , PRO B:229 , TYR B:233 , ARG B:266 , EDO B:1544 , HOH B:2102	BINDING SITE FOR RESIDUE HEM B1539
03	AC3	SOFTWARE	LYS A:119 , THR A:146 , SER A:147 , ASN A:149 , THR A:150 , GLN A:222 , HOH A:2047 , HOH A:2048	BINDING SITE FOR RESIDUE ACT A1550
04	AC4	SOFTWARE	LYS B:119 , THR B:146 , SER B:147 , ASN B:149 , THR B:150 , GLN B:222 , HOH B:2018 , HOH B:2019	BINDING SITE FOR RESIDUE ACT B1540
05	AC5	SOFTWARE	EDO A:1559 , GLU B:187 , VAL B:189	BINDING SITE FOR RESIDUE ACT B1541
06	AC6	SOFTWARE	EDO A:1554 , HOH A:2190 , TRP B:409 , LEU B:530	BINDING SITE FOR RESIDUE ACT B1542
07	AC7	SOFTWARE	LYS A:119 , ASN A:149 , SER A:254 , VAL A:255 , GLY A:256 , THR A:257 , GLY A:258 , GLY A:259 , THR A:260 , GLY A:305 , ILE A:306 , SER A:349 , PRO A:375 , ASP A:376 , HOH A:2047 , HOH A:2094 , HOH A:2106 , HOH A:2107	BINDING SITE FOR RESIDUE PLP A1551
08	AC8	SOFTWARE	LYS B:119 , ASN B:149 , SER B:254 , VAL B:255 , GLY B:256 , THR B:257 , GLY B:258 , GLY B:259 , THR B:260 , GLU B:304 , GLY B:305 , ILE B:306 , SER B:349 , PRO B:375 , ASP B:376 , HOH B:2019 , HOH B:2044 , HOH B:2047 , HOH B:2048	BINDING SITE FOR RESIDUE PLP B1543
09	AC9	SOFTWARE	SER A:50 , PRO A:229 , THR A:262 , ARG A:266 , THR A:313 , VAL A:314 , HEM A:1549	BINDING SITE FOR RESIDUE EDO A1552
10	BC1	SOFTWARE	ALA A:195 , PHE A:197 , SER A:202 , HIS A:203 , TYR A:308 , ASP A:309 , HOH A:2081	BINDING SITE FOR RESIDUE EDO A1553
11	BC2	SOFTWARE	SER B:50 , THR B:262 , ARG B:266 , THR B:313 , VAL B:314 , HEM B:1539	BINDING SITE FOR RESIDUE EDO B1544
12	BC3	SOFTWARE	GLU A:187 , HOH A:2190 , ACT B:1542 , ACT B:1546	BINDING SITE FOR RESIDUE EDO A1554
13	BC4	SOFTWARE	LYS A:485 , GLN A:486 , PHE A:487 , HOH A:2174 , HOH A:2191	BINDING SITE FOR RESIDUE EDO A1555
14	BC5	SOFTWARE	LEU A:315 , ASP A:316 , ARG A:317	BINDING SITE FOR RESIDUE EDO A1556
15	BC6	SOFTWARE	ASP A:198 , PRO A:200 , GLU A:436 , ARG A:439 , GLY B:462	BINDING SITE FOR RESIDUE PE4 A1557
16	BC7	SOFTWARE	LYS A:172 , MET A:173 , GLY A:305 , ILE A:306 , HOH A:2125	BINDING SITE FOR RESIDUE NA A1558
17	BC8	SOFTWARE	LYS B:172 , MET B:173 , GLY B:305 , ILE B:306 , HOH B:2058	BINDING SITE FOR RESIDUE NA B1545
18	BC9	SOFTWARE	ILE A:188 , VAL A:189 , EDO A:1554 , SER B:500 , GLU B:504 , LEU B:529	BINDING SITE FOR RESIDUE ACT B1546
19	CC1	SOFTWARE	LEU A:539 , LEU A:540 , HOH A:2189 , ACT B:1541	BINDING SITE FOR RESIDUE EDO A1559

(no "SS Bond" information available for 4COO)

Asymmetric/Biological Unit

No.	Residues
1	Glu A:289	-	Pro A:290
2	Glu B:289	-	Pro B:290

Asymmetric/Biological Unit (105, 210)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
001	UniProt	VAR_008049	P	49	L	CBS_HUMAN	Disease (CBSD)	148865119	A/B	P	49	L
002	UniProt	VAR_008050	R	58	W	CBS_HUMAN	Disease (CBSD)	555959266	A/B	R	58	W
003	UniProt	VAR_021790	H	65	R	CBS_HUMAN	Disease (CBSD)	---	A/B	H	65	R
004	UniProt	VAR_046922	A	69	P	CBS_HUMAN	Polymorphism	17849313	A/B	A	69	P
005	UniProt	VAR_002171	P	78	R	CBS_HUMAN	Disease (CBSD)	786204608	A/B	P	78	R
006	UniProt	VAR_008051	G	85	R	CBS_HUMAN	Disease (CBSD)	863223435	A/B	G	85	R
007	UniProt	VAR_074590	T	87	N	CBS_HUMAN	Disease (CBSD)	---	A/B	T	87	N
008	UniProt	VAR_002172	P	88	S	CBS_HUMAN	Disease (CBSD)	---	A/B	P	88	S
009	UniProt	VAR_021791	L	101	P	CBS_HUMAN	Disease (CBSD)	786204757	A/B	L	101	P
010	UniProt	VAR_002173	K	102	N	CBS_HUMAN	Disease (CBSD)	786204609	A/B	K	102	N
011	UniProt	VAR_008052	K	102	Q	CBS_HUMAN	Disease (CBSD)	34040148	A/B	K	102	Q
012	UniProt	VAR_021792	C	109	R	CBS_HUMAN	Disease (CBSD)	778220779	A/B	C	109	R
013	UniProt	VAR_002174	A	114	V	CBS_HUMAN	Disease (CBSD)	121964964	A/B	A	114	V
014	UniProt	VAR_008053	G	116	R	CBS_HUMAN	Disease (CBSD)	760214620	A/B	G	116	R
015	UniProt	VAR_008054	R	121	C	CBS_HUMAN	Disease (CBSD)	775992753	A/B	R	121	C
016	UniProt	VAR_008055	R	121	H	CBS_HUMAN	Disease (CBSD)	770095972	A/B	R	121	H
017	UniProt	VAR_008056	R	121	L	CBS_HUMAN	Disease (CBSD)	770095972	A/B	R	121	L
018	UniProt	VAR_046923	R	125	P	CBS_HUMAN	Disease (CBSD)	---	A/B	R	125	P
019	UniProt	VAR_002175	R	125	Q	CBS_HUMAN	Disease (CBSD)	781444670	A/B	R	125	Q
020	UniProt	VAR_008057	R	125	W	CBS_HUMAN	Disease (CBSD)	---	A/B	R	125	W
021	UniProt	VAR_008058	M	126	V	CBS_HUMAN	Disease (CBSD)	---	A/B	M	126	V
022	UniProt	VAR_008059	E	128	D	CBS_HUMAN	Disease (CBSD)	---	A/B	E	128	D
023	UniProt	VAR_002176	E	131	D	CBS_HUMAN	Disease (CBSD)	---	A/B	E	131	D
024	UniProt	VAR_008060	G	139	R	CBS_HUMAN	Disease (CBSD)	121964965	A/B	G	139	R
025	UniProt	VAR_021793	I	143	M	CBS_HUMAN	Disease (CBSD)	---	A/B	I	143	M
026	UniProt	VAR_002177	E	144	K	CBS_HUMAN	Disease (CBSD)	121964966	A/B	E	144	K
027	UniProt	VAR_002178	P	145	L	CBS_HUMAN	Disease (CBSD)	121964963	A/B	P	145	L
028	UniProt	VAR_008061	G	148	R	CBS_HUMAN	Disease (CBSD)	755952006	A/B	G	148	R
029	UniProt	VAR_008062	G	151	R	CBS_HUMAN	Disease (CBSD)	373782713	A/B	G	151	R
030	UniProt	VAR_008064	I	152	M	CBS_HUMAN	Disease (CBSD)	---	A/B	I	152	M
031	UniProt	VAR_046924	L	154	Q	CBS_HUMAN	Disease (CBSD)	---	A/B	L	154	Q
032	UniProt	VAR_008065	A	155	T	CBS_HUMAN	Disease (CBSD)	---	A/B	A	155	T
033	UniProt	VAR_046925	A	155	V	CBS_HUMAN	Disease (CBSD)	---	A/B	A	155	V
034	UniProt	VAR_002179	C	165	Y	CBS_HUMAN	Disease (CBSD)	---	A/B	C	165	Y
035	UniProt	VAR_046926	V	168	A	CBS_HUMAN	Disease (CBSD)	---	A/B	V	168	A
036	UniProt	VAR_002180	V	168	M	CBS_HUMAN	Disease (CBSD)	121964970	A/B	V	168	M
037	UniProt	VAR_046927	M	173	V	CBS_HUMAN	Disease (CBSD)	---	A/B	M	173	V
038	UniProt	VAR_008066	E	176	K	CBS_HUMAN	Disease (CBSD)	---	A/B	E	176	K
039	UniProt	VAR_008067	V	180	A	CBS_HUMAN	Disease (CBSD)	---	A/B	V	180	A
040	UniProt	VAR_008068	T	191	M	CBS_HUMAN	Disease (CBSD)	121964973	A/B	T	191	M
041	UniProt	VAR_008069	D	198	V	CBS_HUMAN	Disease (CBSD)	---	A/B	D	198	V
042	UniProt	VAR_066099	P	200	L	CBS_HUMAN	Disease (CBSD)	758712880	A/B	P	200	L
043	UniProt	VAR_002181	R	224	H	CBS_HUMAN	Disease (CBSD)	761647392	A/B	R	224	H
044	UniProt	VAR_008070	A	226	T	CBS_HUMAN	Disease (CBSD)	---	A/B	A	226	T
045	UniProt	VAR_021794	N	228	K	CBS_HUMAN	Disease (CBSD)	---	A/B	N	228	K
046	UniProt	VAR_046928	N	228	S	CBS_HUMAN	Disease (CBSD)	---	A/B	N	228	S
047	UniProt	VAR_046929	A	231	P	CBS_HUMAN	Disease (CBSD)	---	A/B	A	231	P
048	UniProt	VAR_008071	D	234	N	CBS_HUMAN	Disease (CBSD)	773734233	A/B	D	234	N
049	UniProt	VAR_002182	E	239	K	CBS_HUMAN	Disease (CBSD)	---	A/B	E	239	K
050	UniProt	VAR_002183	T	257	M	CBS_HUMAN	Disease (CBSD)	758236584	A/B	T	257	M
051	UniProt	VAR_008072	T	262	M	CBS_HUMAN	Disease (CBSD)	149119723	A/B	T	262	M
052	UniProt	VAR_021795	T	262	R	CBS_HUMAN	Disease (CBSD)	---	A/B	T	262	R
053	UniProt	VAR_008073	R	266	G	CBS_HUMAN	Disease (CBSD)	---	A/B	R	266	G
054	UniProt	VAR_008074	R	266	K	CBS_HUMAN	Disease (CBSD)	28934275	A/B	R	266	K
055	UniProt	VAR_021796	C	275	Y	CBS_HUMAN	Disease (CBSD)	---	A/B	C	275	Y
056	UniProt	VAR_066100	I	278	S	CBS_HUMAN	Disease (CBSD)	---	A/B	I	278	S
057	UniProt	VAR_002184	I	278	T	CBS_HUMAN	Disease (CBSD)	5742905	A/B	I	278	T
058	UniProt	VAR_066101	D	281	N	CBS_HUMAN	Disease (CBSD)	---	A/B	D	281	N
059	UniProt	VAR_046932	A	288	P	CBS_HUMAN	Disease (CBSD)	---	A/B	A	288	P
060	UniProt	VAR_046933	A	288	T	CBS_HUMAN	Disease (CBSD)	141502207	A/B	A	288	T
061	UniProt	VAR_002185	P	290	L	CBS_HUMAN	Disease (CBSD)	760912339	A/B	P	290	L
062	UniProt	VAR_008076	E	302	K	CBS_HUMAN	Disease (CBSD)	779270933	A/B	E	302	K
063	UniProt	VAR_008077	G	305	R	CBS_HUMAN	Disease (CBSD)	---	A/B	G	305	R
064	UniProt	VAR_002186	G	307	S	CBS_HUMAN	Disease (CBSD)	121964962	A/B	G	307	S
065	UniProt	VAR_008078	V	320	A	CBS_HUMAN	Disease (CBSD)	781567152	A/B	V	320	A
066	UniProt	VAR_066102	D	321	V	CBS_HUMAN	Disease (CBSD)	---	A/B	D	321	V
067	UniProt	VAR_008079	A	331	E	CBS_HUMAN	Disease (CBSD)	777919630	A/B	A	331	E
068	UniProt	VAR_002187	A	331	V	CBS_HUMAN	Disease (CBSD)	---	A/B	A	331	V
069	UniProt	VAR_002188	R	336	C	CBS_HUMAN	Disease (CBSD)	398123151	A/B	R	336	C
070	UniProt	VAR_008080	R	336	H	CBS_HUMAN	Disease (CBSD)	760417941	A/B	R	336	H
071	UniProt	VAR_021797	L	338	P	CBS_HUMAN	Disease (CBSD)	---	A/B	L	338	P
072	UniProt	VAR_021798	G	347	S	CBS_HUMAN	Disease (CBSD)	771298943	A/B	G	347	S
073	UniProt	VAR_021799	S	349	N	CBS_HUMAN	Disease (CBSD)	---	A/B	S	349	N
074	UniProt	VAR_008081	S	352	N	CBS_HUMAN	Disease (CBSD)	---	A/B	S	352	N
075	UniProt	VAR_008082	T	353	M	CBS_HUMAN	Disease (CBSD)	121964972	A/B	T	353	M
076	UniProt	VAR_008083	V	354	M	CBS_HUMAN	Disease (CBSD)	267606146	A/B	V	354	M
077	UniProt	VAR_021800	A	355	P	CBS_HUMAN	Disease (CBSD)	---	A/B	A	355	P
078	UniProt	VAR_046934	A	361	T	CBS_HUMAN	Disease (CBSD)	745764562	A/B	A	361	T
079	UniProt	VAR_008084	R	369	C	CBS_HUMAN	Disease (CBSD)	117687681	A/B	R	369	C
080	UniProt	VAR_002189	R	369	H	CBS_HUMAN	Disease (CBSD)	11700812	A/B	R	369	H
081	UniProt	VAR_008085	C	370	Y	CBS_HUMAN	Disease (CBSD)	757920190	A/B	C	370	Y
082	UniProt	VAR_002190	V	371	M	CBS_HUMAN	Disease (CBSD)	372010465	A/B	V	371	M
083	UniProt	VAR_046935	D	376	N	CBS_HUMAN	Disease (CBSD)	---	A/B	D	376	N
084	UniProt	VAR_021801	R	379	Q	CBS_HUMAN	Disease (CBSD)	763036586	A/B	R	379	Q
085	UniProt	VAR_046936	R	379	W	CBS_HUMAN	Disease (CBSD)	769080151	A/B	R	379	W
086	UniProt	VAR_002191	K	384	E	CBS_HUMAN	Disease (CBSD)	121964967	A/B	K	384	E
087	UniProt	VAR_008086	K	384	N	CBS_HUMAN	Disease (CBSD)	---	A/B	K	384	N
088	UniProt	VAR_008087	M	391	I	CBS_HUMAN	Disease (CBSD)	---	A/B	M	391	I
089	UniProt	VAR_021802	P	422	L	CBS_HUMAN	Disease (CBSD)	28934892	A/B	P	422	L
090	UniProt	VAR_074592	P	427	L	CBS_HUMAN	Disease (CBSD)	863223434	A/B	P	427	L
091	UniProt	VAR_008088	T	434	N	CBS_HUMAN	Disease (CBSD)	---	A/B	T	434	N
092	UniProt	VAR_008089	I	435	T	CBS_HUMAN	Disease (CBSD)	---	A/B	I	435	T
093	UniProt	VAR_008090	R	439	Q	CBS_HUMAN	Disease (CBSD)	756467921	A/B	R	439	Q
094	UniProt	VAR_002192	D	444	N	CBS_HUMAN	Disease (CBSD)	28934891	A/B	D	444	N
095	UniProt	VAR_066103	A	446	S	CBS_HUMAN	Disease (CBSD)	---	A/B	A	446	S
096	UniProt	VAR_074593	V	449	G	CBS_HUMAN	Disease (CBSD)	---	A/B	V	449	G
097	UniProt	VAR_002193	V	454	E	CBS_HUMAN	Disease (CBSD)	---	A/B	V	454	E
098	UniProt	VAR_021803	L	456	P	CBS_HUMAN	Disease (CBSD)	---	A/B	L	456	P
099	UniProt	VAR_008091	S	466	L	CBS_HUMAN	Disease (CBSD)	121964971	A/B	S	466	L
100	UniProt	VAR_008092	R	491	C	CBS_HUMAN	Disease (CBSD)	---	A/B	R	491	C
101	UniProt	VAR_074594	S	500	L	CBS_HUMAN	Disease (CBSD)	755106884	A/B	S	500	L
102	UniProt	VAR_008093	V	534	D	CBS_HUMAN	Disease (CBSD)	---	B A	V	524 534	D
103	UniProt	VAR_002194	L	539	S	CBS_HUMAN	Disease (CBSD)	121964968	B A	L	529 539	S
104	UniProt	VAR_074595	L	540	Q	CBS_HUMAN	Disease (CBSD)	---	B A	L	530 540	Q
105	UniProt	VAR_046938	R	548	Q	CBS_HUMAN	Polymorphism	150828989	B A	R	538 548	Q

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Asymmetric/Biological Unit (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CYS_SYNTHASE	PS00901	Cysteine synthase/cystathionine beta-synthase P-phosphate attachment site.	CBS_HUMAN	108-126	2	A:108-126 B:108-126
2	CBS	PS51371	CBS domain profile.	CBS_HUMAN	418-476	2	A:418-476 B:418-476

Asymmetric/Biological Unit (16, 32)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.3c	ENST00000398168	3c	ENSE00001532023	chr21:44495964-44495880	85	CBS_HUMAN	-	0	0	-	-
1.5b	ENST00000398168	5b	ENSE00001270928	chr21:44493451-44493376	76	CBS_HUMAN	-	0	0	-	-
1.6	ENST00000398168	6	ENSE00002179360	chr21:44492311-44492095	217	CBS_HUMAN	1-70	70	2	A:43-70 B:43-70	28 28
1.7a	ENST00000398168	7a	ENSE00001050491	chr21:44488725-44488619	107	CBS_HUMAN	70-106	37	2	A:70-106 B:70-106	37 37
1.8	ENST00000398168	8	ENSE00001050486	chr21:44486487-44486353	135	CBS_HUMAN	106-151	46	2	A:106-151 B:106-151	46 46
1.9	ENST00000398168	9	ENSE00002170809	chr21:44485805-44485726	80	CBS_HUMAN	151-177	27	2	A:151-177 B:151-177	27 27
1.10	ENST00000398168	10	ENSE00001050496	chr21:44485631-44485497	135	CBS_HUMAN	178-222	45	2	A:178-222 B:178-222	45 45
1.11	ENST00000398168	11	ENSE00001050492	chr21:44485382-44485313	70	CBS_HUMAN	223-246	24	2	A:223-246 B:223-246	24 24
1.12b	ENST00000398168	12b	ENSE00001050501	chr21:44484101-44484010	92	CBS_HUMAN	246-276	31	2	A:246-276 B:246-276	31 31
1.13b	ENST00000398168	13b	ENSE00001050487	chr21:44483188-44483063	126	CBS_HUMAN	277-318	42	2	A:277-318 B:277-318	42 42
1.14a	ENST00000398168	14a	ENSE00001050497	chr21:44482505-44482421	85	CBS_HUMAN	319-347	29	2	A:319-347 B:319-347	29 29
1.15a	ENST00000398168	15a	ENSE00001050494	chr21:44480656-44480551	106	CBS_HUMAN	347-382	36	2	A:347-382 B:347-382	36 36
1.16c	ENST00000398168	16c	ENSE00001298837	chr21:44479413-44479336	78	CBS_HUMAN	382-408	27	2	A:382-408 B:382-408 (gaps)	27 27
1.17a	ENST00000398168	17a	ENSE00001050495	chr21:44479078-44478944	135	CBS_HUMAN	408-453	46	2	A:408-453 B:408-453	46 46
1.18	ENST00000398168	18	ENSE00001050498	chr21:44478363-44478255	109	CBS_HUMAN	453-489	37	2	A:453-489 B:453-489	37 37
1.19	ENST00000398168	19	ENSE00001050489	chr21:44476997-44476913	85	CBS_HUMAN	490-518	29	2	A:490-514 B:490-515	25 26
1.20a	ENST00000398168	20a	ENSE00001367761	chr21:44476209-44476168	42	CBS_HUMAN	518-532	15	2	A:528-532 B:518-522	5 5
1.21d	ENST00000398168	21d	ENSE00001531922	chr21:44474093-44473303	791	CBS_HUMAN	532-565	34	2	A:532-548 B:522-538	17 17

Asymmetric/Biological Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:493
 aligned with CBS_HUMAN | P35520 from UniProtKB/Swiss-Prot  Length:551

    Alignment length:506
                                    52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       502       512       522       532       542      
            CBS_HUMAN    43 WIRPDAPSRCTWQLGRPASESPHHHTAPAKSPKILPDILKKIGDTPMVRINKIGKKFGLKCELLAKCEFFNAGGSVKDRISLRMIEDAERDGTLKPGDTIIEPTSGNTGIGLALAAAVRGYRCIIVMPEKMSSEKVDVLRALGAEIVRTPTNARFDSPESHVGVAWRLKNEIPNSHILDQYRNASNPLAHYDTTADEILQQCDGKLDMLVASVGTGGTITGIARKLKEKCPGCRIIGVDPEGSILAEPEELNQTEQTTYEVEGIGYDFIPTVLDRTVVDKWFKSNDEEAFTFARMLIAQEGLLCGGSAGSTVAVAVKAAQELQEGQRCVVILPDSVRNYMTKFLSDRWMLQKGFLKEEDLTEKKPWWWHLRVQELGLSAPLTVLPTITCGHTIEILREKGFDQAPVVDEAGVILGMVTLGNMLSSLLAGKVQPSDQVGKVIYKQFKQIRLTDTLGRLSHILEMDHFALVVHEQIQYHSTGKSSQRQMVFGVVTAIDLLNFVAAQER 548
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ................hhhhh...............hhhhh.....eee..hhhhhh....eeeeee.hhh....hhhhhhhhhhhhhhhh.......eeeee..hhhhhhhhhhhhhhh.eeeeeee...hhhhhhhhhhh..eeeee..........hhhhhhhhhhhhh..ee.......hhhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhhhhhhhh...eeeeeee.......hhhhhh....................hhhhh.eeeeehhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh....eeeeee...hhhhh....hhhhhhhh...hhhhhhhh........hhhhh...........hhhhhhhhhhhhh..eeeee.....eeeeeehhhhhhhhhh........hhhh.....eeee...hhhhhhhhh.....eeee..-------------..eeeeehhhhhhhhhhhhhh Sec.struct. author
             SAPs(SNPs) (1) ------L--------W------R---P--------R------R-NS------------PN------R----V-R----C---PV-D--D-------R---MKL--R--RM-QT---------Y--A----V--K---A----------M------V-L-----------------------H-T-K--P--N----K-----------------M----M---G--------Y--S--N------P-L-----------K--R-S------------AV---------E----C-P--------S-N--NMMP-----T-------CYM----N--Q----E------I------------------------------L----L------NT---Q----N-S--G----E-P---------L------------------------C--------L------------------------------------------------ SAPs(SNPs) (1)
             SAPs(SNPs) (2) -----------------------------------------------------------Q------------------H---Q-----------------------------V------------M-----------------------------------------------------------S---------------------------------R---K-----------T---------T------------------------------------------V----H--------------------------------H---------W----N-------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (2)
             SAPs(SNPs) (3) ------------------------------------------------------------------------------L---W--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (3)
                    PROSITE -----------------------------------------------------------------CYS_SYNTHASE       ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CBS  PDB: A:418-476 UniProt: 418-476                       ------------------------------------------------------------------------ PROSITE
           Transcript 1 (1) Exon 1.6  PDB: A:43-70      -----------------------------------Exon 1.8  PDB: A:106-151 UniProt: 106-151     --------------------------Exon 1.10  PDB: A:178-222 UniProt: 178-222   Exon 1.11  PDB: A:223-24------------------------------Exon 1.13b  PDB: A:277-318                Exon 1.14a  PDB: A:319-347   ----------------------------------Exon 1.16c  PDB: A:382-408 --------------------------------------------Exon 1.18  PDB: A:453-489            Exon 1.19  PDB: A:490-514    -------------Exon 1.21d        Transcript 1 (1)
           Transcript 1 (2) ---------------------------Exon 1.7a  PDB: A:70-106             --------------------------------------------Exon 1.9  PDB: A:151-177   --------------------------------------------------------------------Exon 1.12b  PDB: A:246-276     ----------------------------------------------------------------------Exon 1.15a  PDB: A:347-382          -------------------------Exon 1.17a  PDB: A:408-453 UniProt: 408-453   ----------------------------------------------------------------Exon 1.20a     ---------------- Transcript 1 (2)
                 4coo A  43 WIRPDAPSRCTWQLGRPASESPHHHTAPAKSPKILPDILKKIGDTPMVRINKIGKKFGLKCELLAKCEFFNAGGSVKDRISLRMIEDAERDGTLKPGDTIIEPTSGNTGIGLALAAAVRGYRCIIVMPEKMSSEKVDVLRALGAEIVRTPTNARFDSPESHVGVAWRLKNEIPNSHILDQYRNASNPLAHYDTTADEILQQCDGKLDMLVASVGTGGTITGIARKLKEKCPGCRIIGVDPEGSILAEPEELNQTEQTTYEVEGIGYDFIPTVLDRTVVDKWFKSNDEEAFTFARMLIAQEGLLCGGSAGSTVAVAVKAAQELQEGQRCVVILPDSVRNYMTKFLSDRWMLQKGFLKEEDLTEKKPWWWHLRVQELGLSAPLTVLPTITCGHTIEILREKGFDQAPVVDEAGVILGMVTLGNMLSSLLAGKVQPSDQVGKVIYKQFKQIRLTDTLGRLSHILEMDHFALVVHE-------------QMVFGVVTAIDLLNFVAAQER 548
                                    52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       502       512 |       -     | 532       542      
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 514           528

Chain B from PDB  Type:PROTEIN  Length:487
 aligned with CBS_HUMAN | P35520 from UniProtKB/Swiss-Prot  Length:551

    Alignment length:506
                                    52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       502       512       522       532       542      
            CBS_HUMAN    43 WIRPDAPSRCTWQLGRPASESPHHHTAPAKSPKILPDILKKIGDTPMVRINKIGKKFGLKCELLAKCEFFNAGGSVKDRISLRMIEDAERDGTLKPGDTIIEPTSGNTGIGLALAAAVRGYRCIIVMPEKMSSEKVDVLRALGAEIVRTPTNARFDSPESHVGVAWRLKNEIPNSHILDQYRNASNPLAHYDTTADEILQQCDGKLDMLVASVGTGGTITGIARKLKEKCPGCRIIGVDPEGSILAEPEELNQTEQTTYEVEGIGYDFIPTVLDRTVVDKWFKSNDEEAFTFARMLIAQEGLLCGGSAGSTVAVAVKAAQELQEGQRCVVILPDSVRNYMTKFLSDRWMLQKGFLKEEDLTEKKPWWWHLRVQELGLSAPLTVLPTITCGHTIEILREKGFDQAPVVDEAGVILGMVTLGNMLSSLLAGKVQPSDQVGKVIYKQFKQIRLTDTLGRLSHILEMDHFALVVHEQIQYHSTGKSSQRQMVFGVVTAIDLLNFVAAQER 548
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ................hhhhh...............hhhhh.....eee..hhhhhh....eeeeee.hhh....hhhhhhhhhhhhhhhh.......eeeee..hhhhhhhhhhhhhhh.eeeeeee...hhhhhhhhhhh..eeeee..........hhhhhhhhhhhhh..ee.......hhhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhhhhhhhh...eeeeeee.......hhhhhh....................hhhhh.eeeeehhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhh.......eeeeee...hhhhh....hhhhhhhh...-------.........hhhhh...........hhhhhhhhhhhhh..eeeee.....eeeeeehhhhhhhhhh........hhhh.....eeee...hhhhhhhhh.....eeee...------------....eeehhhhhhhhhhhhhh Sec.struct. author
             SAPs(SNPs) (1) ------L--------W------R---P--------R------R-NS------------PN------R----V-R----C---PV-D--D-------R---MKL--R--RM-QT---------Y--A----V--K---A----------M------V-L-----------------------H-T-K--P--N----K-----------------M----M---G--------Y--S--N------P-L-----------K--R-S------------AV---------E----C-P--------S-N--NMMP-----T-------CYM----N--Q----E------I------------------------------L----L------NT---Q----N-S--G----E-P---------L------------------------C--------L---------------------------------D----SQ-------Q SAPs(SNPs) (1)
             SAPs(SNPs) (2) -----------------------------------------------------------Q------------------H---Q-----------------------------V------------M-----------------------------------------------------------S---------------------------------R---K-----------T---------T------------------------------------------V----H--------------------------------H---------W----N-------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (2)
             SAPs(SNPs) (3) ------------------------------------------------------------------------------L---W--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs) (3)
                    PROSITE -----------------------------------------------------------------CYS_SYNTHASE       ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CBS  PDB: B:418-476 UniProt: 418-476                       ------------------------------------------------------------------------ PROSITE
           Transcript 1 (1) Exon 1.6  PDB: B:43-70      -----------------------------------Exon 1.8  PDB: B:106-151 UniProt: 106-151     --------------------------Exon 1.10  PDB: B:178-222 UniProt: 178-222   Exon 1.11  PDB: B:223-24------------------------------Exon 1.13b  PDB: B:277-318                Exon 1.14a  PDB: B:319-347   ----------------------------------Exon 1.16c UniProt: 382-408--------------------------------------------Exon 1.18  PDB: B:453-489            Exon 1.19  PDB: B:490-515    -------------Exon 1.21d        Transcript 1 (1)
           Transcript 1 (2) ---------------------------Exon 1.7a  PDB: B:70-106             --------------------------------------------Exon 1.9  PDB: B:151-177   --------------------------------------------------------------------Exon 1.12b  PDB: B:246-276     ----------------------------------------------------------------------Exon 1.15a  PDB: B:347-382          -------------------------Exon 1.17a  PDB: B:408-453 UniProt: 408-453   ----------------------------------------------------------------Exon 1.20a     ---------------- Transcript 1 (2)
                 4coo B  43 WIRPDAPSRCTWQLGRPASESPHHHTAPAKSPKILPDILKKIGDTPMVRINKIGKKFGLKCELLAKCEFFNAGGSVKDRISLRMIEDAERDGTLKPGDTIIEPTSGNTGIGLALAAAVRGYRCIIVMPEKMSSEKVDVLRALGAEIVRTPTNARFDSPESHVGVAWRLKNEIPNSHILDQYRNASNPLAHYDTTADEILQQCDGKLDMLVASVGTGGTITGIARKLKEKCPGCRIIGVDPEGSILAEPEELNQTEQTTYEVEGIGYDFIPTVLDRTVVDKWFKSNDEEAFTFARMLIAQEGLLCGGSAGSTVAVAVKAAQELQEGQRCVVILPDSVRNYMTKFLSDRWMLQKGFL-------KKPWWWHLRVQELGLSAPLTVLPTITCGHTIEILREKGFDQAPVVDEAGVILGMVTLGNMLSSLLAGKVQPSDQVGKVIYKQFKQIRLTDTLGRLSHILEMDHFALVVHEQ------------QMVFGVVTAIDLLNFVAAQER 538
                                    52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392    |    -  |    412       422       432       442       452       462       472       482       492       502       512  |      -     | 522       532      
                                                                                                                                                                                                                                                                                                                                                                                            397     405                                                                                                           515          518

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

(no "SCOP Domain" information available for 4COO)

(no "CATH Domain" information available for 4COO)

(no "Pfam Domain" information available for 4COO)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (CBS_HUMAN | P35520)

molecular function
	GO:1904047	S-adenosyl-L-methionine binding	Interacting selectively and non-covalently with S-adenosyl-L-methionine.
	GO:0070025	carbon monoxide binding	Interacting selectively and non-covalently with carbon monoxide (CO).
	GO:0003824	catalytic activity	Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
	GO:0004122	cystathionine beta-synthase activity	Catalysis of the reaction: L-serine + L-homocysteine = cystathionine + H2O.
	GO:0004124	cysteine synthase activity	Catalysis of the reaction: O3-acetyl-L-serine + hydrogen sulfide = L-cysteine + acetate.
	GO:0019899	enzyme binding	Interacting selectively and non-covalently with any enzyme.
	GO:0020037	heme binding	Interacting selectively and non-covalently with heme, any compound of iron complexed in a porphyrin (tetrapyrrole) ring.
	GO:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	GO:0016829	lyase activity	Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but only one in the other direction. When acting on the single substrate, a molecule is eliminated and this generates either a new double bond or a new ring.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0072341	modified amino acid binding	Interacting selectively and non-covalently with a modified amino acid.
	GO:0070026	nitric oxide binding	Interacting selectively and non-covalently with nitric oxide (NO).
	GO:0050421	nitrite reductase (NO-forming) activity	Catalysis of the reaction: nitric oxide + H2O + ferricytochrome c = nitrite + ferrocytochrome c + 2 H+.
	GO:0019825	oxygen binding	Interacting selectively and non-covalently with oxygen (O2).
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	GO:0042803	protein homodimerization activity	Interacting selectively and non-covalently with an identical protein to form a homodimer.
	GO:0030170	pyridoxal phosphate binding	Interacting selectively and non-covalently with pyridoxal 5' phosphate, 3-hydroxy-5-(hydroxymethyl)-2-methyl4-pyridine carboxaldehyde 5' phosphate, the biologically active form of vitamin B6.
	GO:0031625	ubiquitin protein ligase binding	Interacting selectively and non-covalently with a ubiquitin protein ligase enzyme, any of the E3 proteins.
biological process
	GO:0042262	DNA protection	Any process in which DNA is protected from damage by, for example, oxidative stress.
	GO:0019448	L-cysteine catabolic process	The chemical reactions and pathways resulting in the breakdown of L-cysteine, the L-enantiomer of 2-amino-3-mercaptopropanoic acid, i.e. (2R)-2-amino-3-mercaptopropanoic acid.
	GO:0006565	L-serine catabolic process	The chemical reactions and pathways resulting in the breakdown of L-serine, the L-enantiomer of serine, i.e. (2S)-2-amino-3-hydroxypropanoic acid.
	GO:0006563	L-serine metabolic process	The chemical reactions and pathways involving L-serine, the L-enantiomer of serine, i.e. (2S)-2-amino-3-hydroxypropanoic acid.
	GO:0008652	cellular amino acid biosynthetic process	The chemical reactions and pathways resulting in the formation of amino acids, organic acids containing one or more amino substituents.
	GO:0019344	cysteine biosynthetic process	The chemical reactions and pathways resulting in the formation of cysteine, 2-amino-3-mercaptopropanoic acid.
	GO:0006535	cysteine biosynthetic process from serine	The chemical reactions and pathways resulting in the formation of cysteine from other compounds, including serine.
	GO:0019343	cysteine biosynthetic process via cystathionine	The chemical reactions and pathways resulting in the formation of cysteine, via the intermediate cystathionine.
	GO:0043418	homocysteine catabolic process	The chemical reactions and pathways resulting in the breakdown of homocysteine, the amino acid alpha-amino-gamma-mercaptobutanoic acid.
	GO:0050667	homocysteine metabolic process	The chemical reactions and pathways involving homocysteine, the amino acid alpha-amino-gamma-mercaptobutanoic acid. Homocysteine is an important intermediate in the metabolic reactions of its S-methyl derivative, methionine.
	GO:0070814	hydrogen sulfide biosynthetic process	The chemical reactions and pathways resulting in the formation of hydrogen sulfide, H2S.
	GO:0008152	metabolic process	The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
	GO:0055114	oxidation-reduction process	A metabolic process that results in the removal or addition of one or more electrons to or from a substance, with or without the concomitant removal or addition of a proton or protons.
	GO:0019346	transsulfuration	The interconversion of homocysteine and cysteine via cystathionine. In contrast with enteric bacteria and mammals, Saccharomyces cerevisiae has two transsulfuration pathways employing two separate sets of enzymes.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
	GO:0005634	nucleus	A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.

Asymmetric/Biological Unit
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	4coo
		Family and Domain Information	:	ProDom \| SYSTERS
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	CBS_HUMAN \| P35520
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	4.2.1.22
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		Domain Information	:	XDom
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	CBS_HUMAN \| P35520	:	1jbq 1m54 4l0d 4l27 4l28 4l3v 4pcu 4uuu 5mms

(no "Related Entries Specified in the PDB File" available for 4COO)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (6, 19)

Sites (19, 19)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (105, 210)

PROSITE Motifs (2, 4)

Exons (16, 32)

Sequences/Alignments

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SCOP Domains (0, 0)

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Related Entries Specified in the PDB File