2ESF - JenaLib

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Biol. Unit 1 - sites (Jmol Viewer)

Title :   IDENTIFICATION OF A NOVEL NON-CATALYTIC BICARBONATE BINDING SITE IN EUBACTERIAL BETA-CARBONIC ANHYDRASE

Authors :   J. D. Cronk, R. S. Rowlett, K. Y. J. Zhang, C. Tu, J. A. Endrizzi, P. C. Gare

Date :   26 Oct 05 (Deposition) - 18 Apr 06 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.25

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

Keywords :   Carbonic Anhydrase, Metalloenzyme, Bicarbonate, Zinc Coordination, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   J. D. Cronk, R. S. Rowlett, K. Y. J. Zhang, C. Tu, J. A. Endrizzi, J. Lee, P. C. Gareiss, J. R. Preiss
Identification Of A Novel Noncatalytic Bicarbonate Binding Site In Eubacterial Beta-Carbonic Anhydrase.
Biochemistry V. 45 4351 2006
PubMed-ID: 16584170 | Reference-DOI: 10.1021/BI052272Q

Molecule 1 - CARBONIC ANHYDRASE 2
	Chains	:	A, B
	EC Number	:	4.2.1.1
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21(DE3)
	Expression System Plasmid	:	PTRC99A
	Expression System Strain	:	BL-21 (DE3)
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Gene	:	CAN, CYNT2
	Organism Scientific	:	ESCHERICHIA COLI
	Organism Taxid	:	562

		1	2
Asymmetric Unit	:	A	B
Biological Unit 1 (2x)	:	A	B

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 4)

No.	Name	Count	Type	Full Name
1	BCT	2	Ligand/Ion	BICARBONATE ION
2	ZN	2	Ligand/Ion	ZINC ION

Biological Unit 1 (1, 4)

No.	Name	Count	Type	Full Name
1	BCT	4	Ligand/Ion	BICARBONATE ION
2	ZN	-1	Ligand/Ion	ZINC ION

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	CYS A:42 , ASP A:44 , HIS A:98 , CYS A:101	BINDING SITE FOR RESIDUE ZN A 300
2	AC2	SOFTWARE	TRP A:39 , VAL A:47 , PRO A:48 , ALA A:49 , LEU A:52 , ARG A:64 , TYR A:181 , HOH A:1499 , HOH A:1500	BINDING SITE FOR RESIDUE BCT A 1498
3	AC3	SOFTWARE	CYS B:42 , ASP B:44 , HIS B:98 , CYS B:101	BINDING SITE FOR RESIDUE ZN B 300
4	AC4	SOFTWARE	TRP B:39 , GLY B:41 , VAL B:47 , ALA B:49 , ARG B:64 , TYR B:181 , HOH B:2499 , HOH B:2500	BINDING SITE FOR RESIDUE BCT B 2498

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

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

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

Asymmetric Unit (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PROK_CO2_ANHYDRASE_1	PS00704	Prokaryotic-type carbonic anhydrases signature 1.	CAN_ECOLI	42-49	2	A:42-49 B:42-49
2	PROK_CO2_ANHYDRASE_2	PS00705	Prokaryotic-type carbonic anhydrases signature 2.	CAN_ECOLI	82-102	2	A:82-102 B:82-102

Biological Unit 1 (2, 8)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	PROK_CO2_ANHYDRASE_1	PS00704	Prokaryotic-type carbonic anhydrases signature 1.	CAN_ECOLI	42-49	4	A:42-49 B:42-49
2	PROK_CO2_ANHYDRASE_2	PS00705	Prokaryotic-type carbonic anhydrases signature 2.	CAN_ECOLI	82-102	4	A:82-102 B:82-102

(no "Exon" information available for 2ESF)

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:213
 aligned with CAN_ECOLI | P61517 from UniProtKB/Swiss-Prot  Length:220

    Alignment length:213
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212   
            CAN_ECOLI     3 DIDTLISNNALWSKMLVEEDPGFFEKLAQAQKPRFLWIGCSDSRVPAERLTGLEPGELFVHRNVANLVIHTDLNCLSVVQYAVDVLEVEHIIICGHYGCGGVQAAVENPELGLINNWLLHIRDIWFKHSSLLGEMPQERRLDTLCELNVMEQVYNLGHSTIMQSAWKRGQKVTIHGWAYGIHDGLLRDLDVTATNRETLEQRYRHGISNLKLK 215
               SCOP domains d2esfa_ A: automated matches                                                                                                                                                                                          SCOP domains
               CATH domains 2esfA00 A:3-215 Beta-carbonic Anhydrase; Chain A                                                                                                                                                                      CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhh.hhhhhhhh.....eeeeee.....hhhhhhh.....eeeeee........hhhhhhhhhhhhhh....eeeeeee..hhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....eeeeeee.......ee......hhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------PROK_CO2--------------------------------PROK_CO2_ANHYDRASE_2 ----------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2esf A   3 DIDTLISNNALWSKMLVEEDPGFFEKLAQAQKPRFLWIGCSDSRVPAERLTGLEPGELFVHRNVANLVIHTDLNCLSVVQYAVDVLEVEHIIICGHYGCGGVQAAVENPELGLINNWLLHIRDIWFKHSSLLGEMPQERRLDTLCELNVMEQVYNLGHSTIMQSAWKRGQKVTIHGWAYGIHDGLLRDLDVTATNRETLEQRYRHGISNLKLK 215
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212

Chain B from PDB  Type:PROTEIN  Length:214
 aligned with CAN_ECOLI | P61517 from UniProtKB/Swiss-Prot  Length:220

    Alignment length:214
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211    
            CAN_ECOLI     2 KDIDTLISNNALWSKMLVEEDPGFFEKLAQAQKPRFLWIGCSDSRVPAERLTGLEPGELFVHRNVANLVIHTDLNCLSVVQYAVDVLEVEHIIICGHYGCGGVQAAVENPELGLINNWLLHIRDIWFKHSSLLGEMPQERRLDTLCELNVMEQVYNLGHSTIMQSAWKRGQKVTIHGWAYGIHDGLLRDLDVTATNRETLEQRYRHGISNLKLK 215
               SCOP domains d2esfb_ B: automated matches                                                                                                                                                                                           SCOP domains
               CATH domains 2esfB00 B:2-215 Beta-carbonic Anhydrase; Chain A                                                                                                                                                                       CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhh.hhhhhhhhh.....eeeeee.....hhhhhhh.....eeeeee........hhhhhhhhhhhhhh....eeeeeee..hhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....eeeeeee.......ee......hhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------PROK_CO2--------------------------------PROK_CO2_ANHYDRASE_2 ----------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2esf B   2 KDIDTLISNNALWSKMLVEEDPGFFEKLAQAQKPRFLWIGCSDSRVPAERLTGLEPGELFVHRNVANLVIHTDLNCLSVVQYAVDVLEVEHIIICGHYGCGGVQAAVENPELGLINNWLLHIRDIWFKHSSLLGEMPQERRLDTLCELNVMEQVYNLGHSTIMQSAWKRGQKVTIHGWAYGIHDGLLRDLDVTATNRETLEQRYRHGISNLKLK 215
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211

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(

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Folds(

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Superfamilies( (-)

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Families(

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Protein Domains( (-)

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Organisms( (-)

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Class: Alpha and beta proteins (a/b) (23833)

Fold: Resolvase-like (37)

Superfamily: beta-carbonic anhydrase, cab (26)

Family: beta-carbonic anhydrase, cab (22)

Protein domain: automated matches (16)

Escherichia coli [TaxId: 562] (1)

1a	d2esfa_	A:
1b	d2esfb_	B:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

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

Topology: Beta-carbonic Anhydrase; Chain A (20)

Homologous Superfamily: Beta-carbonic Anhydrase; Chain A (20)

Escherichia coli. Organism_taxid: 562. (4)

1a	2esfA00	A:3-215
1b	2esfB00	B:2-215

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

Asymmetric Unit(hide GO term definitions)

Chain A,B (CAN_ECOLI | P61517)

molecular function
	GO:0004089	carbonate dehydratase activity	Catalysis of the reaction: H2CO3 = CO2 + H2O.
	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:0008270	zinc ion binding	Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
	GO:0015976	carbon utilization	A series of processes that forms an integrated mechanism by which a cell or an organism detects the depletion of primary carbon sources and then activates genes to scavenge the last traces of the primary carbon source and to transport and metabolize alternative carbon sources such as carbon dioxide or carbonic acid. The utilization process begins when the cell or organism detects carbon levels, includes the activation of genes whose products detect, transport or metabolize carbon-containing substances, and ends when carbon is incorporated into the cell or organism's metabolism.
cellular component
	GO:0005829	cytosol	The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

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	CAN_ECOLI \| P61517	:	1i6o 1i6p 1t75

1i6o	E. COLI CARBONIC ANHYDRASE
1i6p	E. COLI CARBONIC ANHYDRASE

Description

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