2BHS - JenaLib

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Biological Unit 1 (Jmol Viewer)

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Biological Unit 2 (Jmol Viewer)

Biological Unit 3 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF CYSTEINE SYNTHASE B

Authors :   M. T. Claus, G. E. Zocher, T. H. P. Maier, G. E. Schulz

Date :   18 Jan 05 (Deposition) - 22 Jun 05 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.67

Chains :   Asym. Unit : A,B,C,D
Biol. Unit 1: A,B  (1x)
Biol. Unit 2: C  (2x)
Biol. Unit 3: D  (2x)

Keywords :   Cysteine Biosynthesis, Plp-Dependent Enzyme, Pyridoxal-5'- Phosphate, Pyridoxal Phosphate, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. T. Claus, G. E. Zocher, T. H. P. Maier, G. E. Schulz
Structure Of The O-Acetylserine Sulfhydrylase Isoenzyme Cysm From Escherichia Coli
Biochemistry V. 44 8620 2005
PubMed-ID: 15952768 | Reference-DOI: 10.1021/BI050485+

Molecule 1 - CYSTEINE SYNTHASE B
	Chains	:	A, B, C, D
	EC Number	:	2.5.1.47
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PASK-IBA3
	Expression System Strain	:	BL21(DE3)
	Expression System Taxid	:	469008
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562
	Other Details	:	SCHIFF BASE LINK BETWEEN A41 AND PLP320
	Synonym	:	O-ACETYLSERINE SULFHYDRYLASE B, O-ACETYLSERINE (THIOL)-LYASE B, CSASE B, O-ACETYLSERINE SULFHYDRYLASE B

		1	2	3	4
Asymmetric Unit	:	A	B	C	D
Biological Unit 1 (1x)	:	A	B
Biological Unit 2 (2x)	:			C
Biological Unit 3 (2x)	:				D

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (1, 4)

No.	Name	Count	Type	Full Name
1	PLP	4	Ligand/Ion	PYRIDOXAL-5'-PHOSPHATE

Biological Unit 1 (1, 2)

No.	Name	Count	Type	Full Name
1	PLP	2	Ligand/Ion	PYRIDOXAL-5'-PHOSPHATE

Biological Unit 2 (1, 2)

No.	Name	Count	Type	Full Name
1	PLP	2	Ligand/Ion	PYRIDOXAL-5'-PHOSPHATE

Biological Unit 3 (1, 2)

No.	Name	Count	Type	Full Name
1	PLP	2	Ligand/Ion	PYRIDOXAL-5'-PHOSPHATE

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	LYS A:41 , ASN A:71 , SER A:172 , GLY A:174 , THR A:175 , THR A:176 , GLY A:177 , THR A:178 , GLY A:208 , ILE A:209 , SER A:255 , CYS A:280 , ASP A:281 , TYR A:286 , HOH A:2043 , HOH A:2070 , HOH A:2071 , HOH A:2072	BINDING SITE FOR RESIDUE PLP A 320
2	AC2	SOFTWARE	LYS B:41 , ASN B:71 , SER B:172 , GLY B:174 , THR B:175 , THR B:176 , GLY B:177 , THR B:178 , GLY B:208 , ILE B:209 , SER B:255 , CYS B:280 , ASP B:281 , TYR B:286 , HOH B:2082 , HOH B:2083 , HOH B:2084 , HOH B:2085	BINDING SITE FOR RESIDUE PLP B 320
3	AC3	SOFTWARE	LYS C:41 , ASN C:71 , SER C:172 , GLY C:174 , THR C:175 , THR C:176 , GLY C:177 , THR C:178 , GLY C:208 , ILE C:209 , SER C:255 , CYS C:280 , ASP C:281 , TYR C:286 , HOH C:2052 , HOH C:2053 , HOH C:2054	BINDING SITE FOR RESIDUE PLP C 320
4	AC4	SOFTWARE	LYS D:41 , ASN D:71 , SER D:172 , GLY D:174 , THR D:175 , THR D:176 , GLY D:177 , THR D:178 , GLY D:208 , ILE D:209 , SER D:255 , CYS D:280 , ASP D:281 , TYR D:286 , HOH D:2054 , HOH D:2055 , HOH D:2056 , HOH D:2057	BINDING SITE FOR RESIDUE PLP D 320

(no "SS Bond" information available for 2BHS)

(no "Cis Peptide Bond" information available for 2BHS)

(no "SAP(SNP)/Variant" information available for 2BHS)

Asymmetric Unit (1, 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.	CYSM_ECOLI	30-48	4	A:30-48 B:30-48 C:30-48 D:30-48

Biological Unit 1 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CYS_SYNTHASE	PS00901	Cysteine synthase/cystathionine beta-synthase P-phosphate attachment site.	CYSM_ECOLI	30-48	2	A:30-48 B:30-48 - -

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CYS_SYNTHASE	PS00901	Cysteine synthase/cystathionine beta-synthase P-phosphate attachment site.	CYSM_ECOLI	30-48	2	- - C:30-48 -

Biological Unit 3 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CYS_SYNTHASE	PS00901	Cysteine synthase/cystathionine beta-synthase P-phosphate attachment site.	CYSM_ECOLI	30-48	2	- - - D:30-48

(no "Exon" information available for 2BHS)

Asymmetric 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:292
 aligned with CYSM_ECOLI | P16703 from UniProtKB/Swiss-Prot  Length:303

    Alignment length:292
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291  
           CYSM_ECOLI     2 STLEQTIGNTPLVKLQRMGPDNGSEVWLKLEGNNPAGSVKDRAALSMIVEAEKRGEIKPGDVLIEATSGNTGIALAMIAALKGYRMKLLMPDNMSQERRAAMRAYGAELILVTKEQGMEGARDLALEMANRGEGKLLDQFNNPDNPYAHYTTTGPEIWQQTGGRITHFVSSMGTTGTITGVSRFMREQSKPVTIVGLQPEEGSSIPGIRRWPTEYLPGIFNASLVDEVLDIHQRDAENTMRELAVREGIFCGVSSGGAVAGALRVAKANPDAVVVAIICDRGDRYLSTGVFG 293
               SCOP domains d2bhsa1 A:2-293 O-acetylserine sulfhydrylase (Cysteine synthase)                                                                                                                                                                                                                                     SCOP domains
               CATH domains 2bhsA01 A:2-34,A:154-293         2bhsA02 A:35-140  [code=3.40.50.1100, no name defined]                                                    -------------2bhsA01 A:2-34,A:154-293  [code=3.40.50.1100, no name defined]                                                                               CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhh....eee..........eeeeee.hhh....hhhhhhhhhhhhhhhh.......eeeee..hhhhhhhhhhhhhhh.eeeeeee...hhhhhhhhhhh..eeeee...hhhhhhhhhhhhhhhhh..ee......hhhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhhhhhh.....eeeeeee.....................hhhhh.eeeeehhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhh....eeeeee...hhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------CYS_SYNTHASE       ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bhs A   2 STLEQTIGNTPLVKLQRMGPDNGSEVWLKLEGNNPAGSVKDRAALSMIVEAEKRGEIKPGDVLIEATSGNTGIALAMIAALKGYRMKLLMPDNMSQERRAAMRAYGAELILVTKEQGMEGARDLALEMANRGEGKLLDQFNNPDNPYAHYTTTGPEIWQQTGGRITHFVSSMGTTGTITGVSRFMREQSKPVTIVGLQPEEGSSIPGIRRWPTEYLPGIFNASLVDEVLDIHQRDAENTMRELAVREGIFCGVSSGGAVAGALRVAKANPDAVVVAIICDRGDRYLSTGVFG 293
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291

Chain B from PDB  Type:PROTEIN  Length:291
 aligned with CYSM_ECOLI | P16703 from UniProtKB/Swiss-Prot  Length:303

    Alignment length:291
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291 
           CYSM_ECOLI     2 STLEQTIGNTPLVKLQRMGPDNGSEVWLKLEGNNPAGSVKDRAALSMIVEAEKRGEIKPGDVLIEATSGNTGIALAMIAALKGYRMKLLMPDNMSQERRAAMRAYGAELILVTKEQGMEGARDLALEMANRGEGKLLDQFNNPDNPYAHYTTTGPEIWQQTGGRITHFVSSMGTTGTITGVSRFMREQSKPVTIVGLQPEEGSSIPGIRRWPTEYLPGIFNASLVDEVLDIHQRDAENTMRELAVREGIFCGVSSGGAVAGALRVAKANPDAVVVAIICDRGDRYLSTGVF 292
               SCOP domains d2bhsb_ B: automated matches                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 2bhsB01 B:2-34,B:154-292         2bhsB02 B:35-140  [code=3.40.50.1100, no name defined]                                                    -------------2bhsB01 B:2-34,B:154-292  [code=3.40.50.1100, no name defined]                                                                              CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhh....eee..........eeeeee.hhh....hhhhhhhhhhhhhhhh.......eeeee..hhhhhhhhhhhhhhh.eeeeeee...hhhhhhhhhhh..eeeee....hhhhhhhhhh........ee......hhhhhhhhhhhhhhhhhhhh....eeeee...hhhhhhhhhhhhh.....eeeeeee.....................hhhhh.eeeeehhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh...eeeeee...hhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------CYS_SYNTHASE       ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bhs B   2 STLEQTIGNTPLVKLQRMGPDNGSEVWLKLEGNNPAGSVKDRAALSMIVEAEKRGEIKPGDVLIEATSGNTGIALAMIAALKGYRMKLLMPDNMSQERRAAMRAYGAELILVTKEQGMEGARDLALEMANRGEGKLLDQFNNPDNPYAHYTTTGPEIWQQTGGRITHFVSSMGTTGTITGVSRFMREQSKPVTIVGLQPEEGSSIPGIRRWPTEYLPGIFNASLVDEVLDIHQRDAENTMRELAVREGIFCGVSSGGAVAGALRVAKANPDAVVVAIICDRGDRYLSTGVF 292
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291

Chain C from PDB  Type:PROTEIN  Length:291
 aligned with CYSM_ECOLI | P16703 from UniProtKB/Swiss-Prot  Length:303

    Alignment length:291
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291 
           CYSM_ECOLI     2 STLEQTIGNTPLVKLQRMGPDNGSEVWLKLEGNNPAGSVKDRAALSMIVEAEKRGEIKPGDVLIEATSGNTGIALAMIAALKGYRMKLLMPDNMSQERRAAMRAYGAELILVTKEQGMEGARDLALEMANRGEGKLLDQFNNPDNPYAHYTTTGPEIWQQTGGRITHFVSSMGTTGTITGVSRFMREQSKPVTIVGLQPEEGSSIPGIRRWPTEYLPGIFNASLVDEVLDIHQRDAENTMRELAVREGIFCGVSSGGAVAGALRVAKANPDAVVVAIICDRGDRYLSTGVF 292
               SCOP domains d2bhsc_ C: automated matches                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 2bhsC01 C:2-34,C:154-292         2bhsC02 C:35-140  [code=3.40.50.1100, no name defined]                                                    -------------2bhsC01 C:2-34,C:154-292  [code=3.40.50.1100, no name defined]                                                                              CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........eee..........eeeeee.hhh....hhhhhhhhhhhhhhhh.......eeeee..hhhhhhhhhhhhhhh.eeeeeee...hhhhhhhhhh...eeeee...hhhhhhhhhhhhhhhhh..ee......hhhhhhhhhhhhhhhhhhhh....eeeee...hhhhhhhhhhhhh.....eeeeeee.....................hhhhh.eeeeehhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhh....eeeeee...hhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------CYS_SYNTHASE       ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bhs C   2 STLEQTIGNTPLVKLQRMGPDNGSEVWLKLEGNNPAGSVKDRAALSMIVEAEKRGEIKPGDVLIEATSGNTGIALAMIAALKGYRMKLLMPDNMSQERRAAMRAYGAELILVTKEQGMEGARDLALEMANRGEGKLLDQFNNPDNPYAHYTTTGPEIWQQTGGRITHFVSSMGTTGTITGVSRFMREQSKPVTIVGLQPEEGSSIPGIRRWPTEYLPGIFNASLVDEVLDIHQRDAENTMRELAVREGIFCGVSSGGAVAGALRVAKANPDAVVVAIICDRGDRYLSTGVF 292
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291

Chain D from PDB  Type:PROTEIN  Length:291
 aligned with CYSM_ECOLI | P16703 from UniProtKB/Swiss-Prot  Length:303

    Alignment length:291
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291 
           CYSM_ECOLI     2 STLEQTIGNTPLVKLQRMGPDNGSEVWLKLEGNNPAGSVKDRAALSMIVEAEKRGEIKPGDVLIEATSGNTGIALAMIAALKGYRMKLLMPDNMSQERRAAMRAYGAELILVTKEQGMEGARDLALEMANRGEGKLLDQFNNPDNPYAHYTTTGPEIWQQTGGRITHFVSSMGTTGTITGVSRFMREQSKPVTIVGLQPEEGSSIPGIRRWPTEYLPGIFNASLVDEVLDIHQRDAENTMRELAVREGIFCGVSSGGAVAGALRVAKANPDAVVVAIICDRGDRYLSTGVF 292
               SCOP domains d2bhsd_ D: automated matches                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 2bhsD01 D:2-34,D:154-292         2bhsD02 D:35-140  [code=3.40.50.1100, no name defined]                                                    -------------2bhsD01 D:2-34,D:154-292  [code=3.40.50.1100, no name defined]                                                                              CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhh....eee..........eeeeee.hhh....hhhhhhhhhhhhhhhh.......eeeee..hhhhhhhhhhhhhhh.eeeeeee...hhhhhhhhhh...eeeee....hhhhhhhhhhhhhhhh..ee......hhhhhhhhhhhhhhhhhhh.....eeeee...hhhhhhhhhhhhh.....eeeeeee.....................hhhhh.eeeeehhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh...eeeeee...hhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------CYS_SYNTHASE       ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2bhs D   2 STLEQTIGNTPLVKLQRMGPDNGSEVWLKLEGNNPAGSVKDRAALSMIVEAEKRGEIKPGDVLIEATSGNTGIALAMIAALKGYRMKLLMPDNMSQERRAAMRAYGAELILVTKEQGMEGARDLALEMANRGEGKLLDQFNNPDNPYAHYTTTGPEIWQQTGGRITHFVSSMGTTGTITGVSRFMREQSKPVTIVGLQPEEGSSIPGIRRWPTEYLPGIFNASLVDEVLDIHQRDAENTMRELAVREGIFCGVSSGGAVAGALRVAKANPDAVVVAIICDRGDRYLSTGVF 292
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291

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 '\|'

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: [code=3.40.50.1100, no name defined] (77)

Escherichia coli. Organism_taxid: 562. (4)

1a	2bhsB01	B:2-34,B:154-292
1b	2bhsA02	A:35-140
1c	2bhsB02	B:35-140
1d	2bhsC02	C:35-140
1e	2bhsD02	D:35-140
1f	2bhsC01	C:2-34,C:154-292
1g	2bhsD01	D:2-34,D:154-292
1h	2bhsA01	A:2-34,A:154-293

(no "Pfam Domain" information available for 2BHS)

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (CYSM_ECOLI | P16703)

molecular function
	GO:0080146	L-cysteine desulfhydrase activity	Catalysis of the reaction: L-cysteine + H2O = ammonia + pyruvate + hydrogen sulfide + H+.
	GO:0004124	cysteine synthase activity	Catalysis of the reaction: O3-acetyl-L-serine + hydrogen sulfide = L-cysteine + acetate.
	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:0016740	transferase activity	Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
biological process
	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.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

Asymmetric Unit
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	Cis Peptide Bonds
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	2bhs
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	CYSM_ECOLI \| P16703	:	2bht 2v03

2bht	CRYSTAL STRUCTURE OF O-ACETYLSERINE SULFHYDRYLASE B

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 4)

Sites (4, 4)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

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Exons (0, 0)

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