2HFW - JenaLib

Title :   STRUCTURAL AND KINETIC ANALYSIS OF PROTON SHUTTLE RESIDUES IN THE ACTIVE SITE OF HUMAN CARBONIC ANHYDRASE III

Authors :   I. Elder, S. Z. Fisher, P. J. Laipis, C. K. Tu, R. Mckenna, D. N. Silverman

Date :   26 Jun 06 (Deposition) - 08 May 07 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.50

Chains :   Asym./Biol. Unit : A

Keywords :   Proton Shuttle, Hca Iii, Proton Transfer, Lyase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   I. Elder, Z. Fisher, P. J. Laipis, C. Tu, R. Mckenna, D. N. Silverman
Structural And Kinetic Analysis Of Proton Shuttle Residues In The Active Site Of Human Carbonic Anhydrase Iii.
Proteins V. 68 337 2007
PubMed-ID: 17427958 | Reference-DOI: 10.1002/PROT.21403
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 1)

Sites (1, 1)

SS Bonds (0, 0)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 1)

PROSITE Motifs (1, 1)

Exons (7, 7)

Asymmetric/Biological Unit (7, 7)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.3a	ENST00000285381	3a	ENSE00001725111	chr8:86351056-86351172	117	CAH3_HUMAN	1-12	12	1	A:4-12	9
1.4	ENST00000285381	4	ENSE00001018980	chr8:86351941-86352138	198	CAH3_HUMAN	12-78	67	1	A:12-78	67
1.5c	ENST00000285381	5c	ENSE00001018987	chr8:86354302-86354420	119	CAH3_HUMAN	78-117	40	1	A:78-117	40
1.7	ENST00000285381	7	ENSE00001018977	chr8:86356263-86356355	93	CAH3_HUMAN	118-148	31	1	A:118-149 (gaps)	32
1.8	ENST00000285381	8	ENSE00001018993	chr8:86357385-86357447	63	CAH3_HUMAN	149-169	21	1	A:150-170	21
1.9	ENST00000285381	9	ENSE00001018988	chr8:86358371-86358526	156	CAH3_HUMAN	170-221	52	1	A:171-222	52
1.10	ENST00000285381	10	ENSE00001018985	chr8:86360263-86361269	1007	CAH3_HUMAN	222-260	39	1	A:223-261	39

Sequences/Alignments

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:257
 aligned with CAH3_HUMAN | P07451 from UniProtKB/Swiss-Prot  Length:260

    Alignment length:257
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       
           CAH3_HUMAN     4 EWGYASHNGPDHWHELFPNAKGENQSPVELHTKDIRHDPSLQPWSVSYDGGSAKTILNNGKTCRVVFDDTYDRSMLRGGPLPGPYRLRQFHLHWGSSDDHGSEHTVDGVKYAAELHLVHWNPKYNTFKEALKQRDGIAVIGIFLKIGHENGEFQIFLDALDKIKTKGKEAPFTKFDPSCLFPACRDYWTYQGSFTTPPCEECIVWLLLKEPMTVSSDQMAKLRSLLSSAENEPPVPLVSNWRPPQPINNRVVRASFK 260
               SCOP domains d2hfwa_ A: automated matches                                                                                                                                                                                                                                      SCOP domains
               CATH domains 2hfwA00 A:4-261 Carbonic Anhydrase II                                                                                                                                                                                                                             CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........hhhhhhhh.hhhhh......eehhhhhee......eeee.hhh.eeeeee....eeeee.......eeee......eeeeeeeeee..........ee......eeeeeeee.hhhh...........eeeeeeeeee...hhhhhhhhhhhhhh.....eee....hhhhhh.....eeeeee..........eeeeee...eeehhhhhhhhh.............................ee... Sec.struct. author
                 SAPs(SNPs) ---------------------------I------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------ALPHA_CA_1       ------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.3a-----------------------------------------------------------------Exon 1.5c  PDB: A:78-117 UniProt: 78-117Exon 1.7  PDB: A:118-149 (gaps)Exon 1.8             Exon 1.9  PDB: A:171-222 UniProt: 170-221           Exon 1.10  PDB: A:223-261               Transcript 1 (1)
           Transcript 1 (2) --------Exon 1.4  PDB: A:12-78 UniProt: 12-78                              -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript 1 (2)
                 2hfw A   4 EWGYASHNGPDHWHELFPNAKGENQSPIELHTKDIRHDPSLQPWSVSYDGGSAKTILNNGHTCNVVFDDTYDRSMLRGGPLPGPYRLRQFHLHWGSSDDHGSEHTVDGVKYAAELHLVHWNPKYNTFKEALKQRDGIAVIGIFLKIGHENGEFQIFLDALDKIKTKGKEAPFTKFDPSSLFPASRDYWTYQGSFTTPPCEECIVWLLLKEPMTVSSDQMAKLRSLLSSAENEPPVPLVSNWRPPQPINNRVVRASFK 261
                                    13        23        33        43        53        63        73        83        93       103       113       123 ||    134       144       154       164       174       184       194       204       214       224       234       244       254       
                                                                                                                                                   125|                                                                                                                                      
                                                                                                                                                    127

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
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	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 '\|'

Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

Pfam Domains (0, 0)

Gene Ontology (13, 13)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (CAH3_HUMAN | P07451)

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:0016151	nickel cation binding	Interacting selectively and non-covalently with nickel (Ni) cations.
	GO:0016791	phosphatase activity	Catalysis of the hydrolysis of phosphoric monoesters, releasing inorganic phosphate.
	GO:0008270	zinc ion binding	Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
	GO:0015701	bicarbonate transport	The directed movement of bicarbonate into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0016311	dephosphorylation	The process of removing one or more phosphoric (ester or anhydride) residues from a molecule.
	GO:0006730	one-carbon metabolic process	The chemical reactions and pathways involving the transfer of one-carbon units in various oxidation states.
	GO:0045471	response to ethanol	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an ethanol stimulus.
	GO:0006979	response to oxidative stress	Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
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.

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