Aminopeptidase

From Proteopedia

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Current revision

Bacterial leucine aminopeptidase complex with 8-hydroxyquinoline, glycerol, SCN, Zn+2 (magenta), Na+ (cyan) and Cl- (green) ions (PDB code 3vh9)

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1 Function
2 Aminopeptidase from Aeromonas proteolytica^[5]
3 S. griseus aminopeptidase
4 3D Structures of Aminopeptidase

Function

Aminopeptidases (AP) (EC 3) are metal - mostly Zn-dependent enzymes involved in the digestion of proteins. Cytosol AP (Cyt-AP) and AP N (APN) remove N-terminal amino acids. The AP are classified by the amino acid which they hydrolyze. Other types of AP are:

Cold-activated AP (Col-AP)
Heat stable AP from Thermus thermophilus (AmpT)
AP from Staphylococcus aureus (AmpS)
SGAP from Stereomyces griseus. See details in Streptomyces griseus Aminopeptidase (SGAP).
Alanine aminopeptidase is called aminopeptidase N. See details in Aminopeptidase N.
Aminopeptidase C is a Phe aminopeptidase from Aspergillus niger^[1].
Deblocking aminopeptidase (DAP) is an exoprotease aminopeptidase which can release N-terminal amino acids from blocked peptides^[2].
Beta-peptidyl AP (BapA) cleaves N-terminal β-homoamino acid from peptides of length 2 to 6.^[3]
.
M1 family AP are Zn+2 containing amino peptidases^[4]

Aminopeptidases catalyze a release of an N-terminal amino acid from a peptide, amide, or arylamide.

Aminopeptidase from Aeromonas proteolytica^[5]

The selective inhibition of an , a hydrolase, by derivatives is reported. Based on our findings about 8-HQ-based Zn²⁺ fluorophores, it was hypothesized that 8-HQ derivatives have the potential to function as specific inhibitors of Zn²⁺ enzymes, especially dinuclear Zn²⁺ hydrolases. Inhibitory assays of 8-HQ derivatives against AAP disclosed that the 8-HQ and 5-substituted 8-HQ′s are competitive inhibitors for AAP with inhibition constants (Ki) of 0.16—29 μM at pH 8.0. (1.3 Å resolution) as well as fluorescence titrations of these drugs with AAP confirmed that , in which the in the active site of AAP and the (PDB code: 3vh9). of free AAP (colored green) containing Zn²⁺-bound water molecule (H2O or OH-; red sphere) (1rtq) bridging two Zn²⁺ and AAP–8-HQ complex (darkmagenta, 3vh9). Two Zn²⁺ are depicted as magenta spheres.

S. griseus aminopeptidase

S. griseus aminopeptidase (SGAP) cleaves the N-terminal amino acid from a peptide or protein, and is specific for larger hydrophobic acids, especially leucine. No cleavage occurs if the next residue is proline.

The of the enzyme contains two Zn2+ ions with His85 and Asp160 as ligands for one ion, and Glu132 and His247 as ligands for the second ion. Asp97 is a common ligand to both ions. What appears to be a phosphate anion is bound to both zinc atoms, replacing the water molecule/hydroxide ion normally found in this class of enzyme. See details of SGAP in Streptomyces griseus Aminopeptidase (SGAP).

3D Structures of Aminopeptidase

Aminopeptidase 3D structures

Additional Resources

For additional information, see:
Amino Acid Synthesis & Metabolism
Streptomyces griseus Aminopeptidase (SGAP)

References

↑ Basten DE, Dekker PJ, Schaap PJ. Aminopeptidase C of Aspergillus niger is a novel phenylalanine aminopeptidase. Appl Environ Microbiol. 2003 Feb;69(2):1246-50. PMID:12571053 doi:10.1128/AEM.69.2.1246-1250.2003
↑ Jia B, Lee S, Pham BP, Kwack JM, Jin H, Li J, Wang Y, Cheong GW. Biochemical characterization of deblocking aminopeptidases from the hyperthermophilic archaeon Thermococcus kodakarensis KOD1. Biosci Biotechnol Biochem. 2011;75(6):1160-6. PMID:21670507 doi:10.1271/bbb.110114
↑ Taylor A. Aminopeptidases: structure and function. FASEB J. 1993 Feb 1;7(2):290-8. PMID:8440407
↑ Cadel S, Darmon C, Pernier J, Hervé G, Foulon T. The M1 family of vertebrate aminopeptidases: role of evolutionarily conserved tyrosines in the enzymatic mechanism of aminopeptidase B. Biochimie. 2015 Feb;109:67-77. PMID:25530263 doi:10.1016/j.biochi.2014.12.009
↑ Hanaya K, Suetsugu M, Saijo S, Yamato I, Aoki S. Potent inhibition of dinuclear zinc(II) peptidase, an aminopeptidase from Aeromonas proteolytica, by 8-quinolinol derivatives: inhibitor design based on Zn(2+) fluorophores, kinetic, and X-ray crystallographic study. J Biol Inorg Chem. 2012 Feb 5. PMID:22311113 doi:10.1007/s00775-012-0873-4

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Michal Harel, Alexander Berchansky, David Canner, Joel L. Sussman, Eran Hodis

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Category: Topic Page

Aminopeptidase

From Proteopedia

Current revision

Contents

Function

Aminopeptidase from Aeromonas proteolytica^[5]

S. griseus aminopeptidase

3D Structures of Aminopeptidase

Additional Resources

References

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@@ Line 1: / Line 1: @@
-<applet load='1xjo' size='500' frame='true' align='right' caption='Structure of S. griseus Aminopeptidase, [[1xjo]]' />
+<StructureSection load='' size='350' side='right' scene='Journal:JBIC:15/Cv/1' caption='Bacterial leucine aminopeptidase complex with 8-hydroxyquinoline, glycerol, SCN, Zn+2 (magenta), Na+ (cyan) and Cl- (green) ions (PDB code [[3vh9]])'>
-[[Image:1xjo_cartoon.png|left|200px|thumb|Crystal Structure of Aminopeptidase [[1xjo]]]][[Aminopeptidase|Aminopeptidases]] (AP) ([[EC]] 3) are metal - mostly Zn-dependent enzymes involved in the digestion of proteins.  Cytosol AP (Cyt-AP), deblocking AP (DAP)  and AP N (APN) remove N-terminal amino acids.  The AP are classified by the amino acid which they hydrolyze.  Other types of AP are: Cold-activated AP (Col-AP), Heat stable AP from ''Thermus thermophilus'' (AmpT), AP from ''Staphylococcus aureus'' (AmpS) and SGAP from ''Stereomyces griseus''. Aminopeptidases catalyze a release of an N-terminal amino acid from a peptide, amide, or arylamide. The images at the left and at the right correspond to one representative Aminopeptidase, ''i.e.'' the crystal structure of ''Stereomyces griesus'' aminopeptidase SGAP ([[1xjo]]).  See details of SGAP in [[Streptomyces griseus Aminopeptidase (SGAP)]].  Beta-peptidyl AP (BapA) cleaves N-terminal β-homoamino acid from peptides of length 2 to 6.
+__TOC__
+== Function ==
+[[Aminopeptidase|Aminopeptidases]] (AP) ([[EC]] 3) are metal - mostly Zn-dependent enzymes involved in the digestion of proteins.  '''Cytosol AP''' (Cyt-AP)  and '''AP N''' (APN) remove N-terminal amino acids.  The AP are classified by the amino acid which they hydrolyze.  Other types of AP are:<br />
+* '''Cold-activated AP''' (Col-AP)<br />
+* '''Heat stable AP''' from ''Thermus thermophilus'' (AmpT)<br />
+* '''AP from ''Staphylococcus aureus''''' (AmpS)<br />
+*  '''SGAP''' from ''Stereomyces griseus''. See details in [[Streptomyces griseus Aminopeptidase (SGAP)]].<br />
+* '''Alanine aminopeptidase''' is called '''aminopeptidase N'''.  See details in [[Aminopeptidase N]].<br />
+* '''Aminopeptidase C''' is a Phe aminopeptidase from ''Aspergillus niger''<ref>PMID:12571053</ref>.<br />
+* '''Deblocking aminopeptidase''' (DAP) is an exoprotease aminopeptidase which can release N-terminal amino acids from blocked peptides<ref>PMID:21670507</ref>.<br />
+* '''Beta-peptidyl AP''' (BapA) cleaves N-terminal β-homoamino acid from peptides of length 2 to 6.<ref>PMID:8440407</ref><br />.
+* '''M1 family AP''' are Zn+2 containing amino peptidases<ref>PMID:25530263</ref><br />
+Aminopeptidases catalyze a release of an N-terminal amino acid from a peptide, amide, or arylamide.
-{{TOC limit|limit=2}}
+== Aminopeptidase from ''Aeromonas proteolytica''<ref>DOI 10.1007/s00775-012-0873-4</ref> ==
-== Aminopeptidase from ''Aeromonas proteolytica'' ==
-<StructureSection load='VH9.pdb' size='500' side='right' scene='Journal:JBIC:15/Cv/1' caption=''>
 The selective inhibition of an <scene name='Journal:JBIC:15/Cv/2'>aminopeptidase from Aeromonas proteolytica (AAP)</scene>, a <scene name='Journal:JBIC:15/Cv/3'>dinuclear Zn2+</scene> hydrolase, by <scene name='Journal:JBIC:15/Cv/10'>8-quinolinol (8-hydroxyquinoline, 8-HQ)</scene> derivatives is reported.  Based on our findings about 8-HQ-based Zn<sup>2+</sup> fluorophores, it was hypothesized that 8-HQ derivatives have the potential to function as specific inhibitors of Zn<sup>2+</sup> enzymes, especially dinuclear Zn<sup>2+</sup> hydrolases.  Inhibitory assays of 8-HQ derivatives against AAP disclosed that the 8-HQ and 5-substituted 8-HQ&#8242;s are competitive inhibitors for AAP with inhibition constants (''K''i) of 0.16—29 &#956;M at pH 8.0. <scene name='Journal:JBIC:15/Cv/11'>X-ray crystal structure analysis of an AAP with 8-HQ complex</scene> (1.3 Å resolution) as well as fluorescence titrations of these drugs with AAP confirmed that <scene name='Journal:JBIC:15/Cv/13'>8-hydroxyquinoline binds to AAP in the 'Pyr-out' mode</scene>, in which the <scene name='Journal:JBIC:15/Cv/15'>hydroxide anion of 8-HQ bridges two Zn2+ (Zn1 and Zn2)</scene> in the active site of AAP and the <scene name='Journal:JBIC:15/Cv/17'>nitrogen atom of 8-HQ coordinates to Zn1</scene> (PDB code: [[3vh9]]). <scene name='Journal:JBIC:15/Cv/18'>Overlap of active site</scene> of <span style="color:lime;background-color:black;font-weight:bold;">free AAP (colored green)</span> containing Zn<sup>2+</sup>-bound <font color='red'><b>water molecule (H2O or OH-; red sphere)</b></font> ([[1rtq]]) bridging two Zn<sup>2+</sup> and <font color='darkmagenta'><b>AAP–8-HQ complex (darkmagenta,</b></font> [[3vh9]]). <font color='magenta'><b>Two Zn<sup>2+</sup> are depicted as magenta spheres</b></font>.
-</StructureSection>
+{{Clear}}
 == ''S. griseus'' aminopeptidase ==
-<applet load='1xjo' size='500' frame='true' align='right' caption='Structure of S. griseus Aminopeptidase, [[1xjo]]' />
 ''S. griseus'' aminopeptidase (SGAP) cleaves the N-terminal amino acid from a peptide or protein, and is specific for larger hydrophobic acids, especially leucine. No cleavage occurs if the next residue is proline.<br/>
 The <scene name='Aminopeptidase/Active_site/1'>active site</scene> of the enzyme contains two Zn2+ ions with His85 and Asp160 as ligands for one ion, and Glu132 and His247 as ligands for the second ion. Asp97 is a common ligand to both ions. What appears to be a phosphate anion is bound to both zinc atoms, replacing the water molecule/hydroxide ion normally found in this class of enzyme. See details of SGAP in [[Streptomyces griseus Aminopeptidase (SGAP)]].
 == 3D Structures of Aminopeptidase ==
+[[Aminopeptidase 3D structures]]
-''Update November 2011''
+</StructureSection>
-===Cysteine aminopeptidase===
-[[3pw3]] – PdCys-AP – ''Parabacteroides distasonis''
-===Glutamic acid aminopeptidase===
-[[2wyr]] – PhGlu-AP+Co – ''Pyrococcus horikoshii''<br />
-[[3kl9]] – Glu-AP – ''Streptococcus pneumoniae''
-===Alanine aminopeptidase===
-[[3ebg]] – PfAla-AP - ''Plasmodium falciparum''<br />
-[[3ebh]] - PfAla-AP+bestatin<br />
-[[3ebi]] - PfAla-AP+dipeptide analog
-===Proline aminopeptidase===
-[[3ovk]] – Xaa Pro-AP – ''Streptococcus pyogenes''<br />
-[[3il0]] - Xaa Pro-AP – ''Streptococcus thermophilus''<br />
-[[2v3x]], [[2v3y]], [[2v3z]] - Xaa EcPro-AP (mutant)+tripeptide<br />
-[[1w7v]], [[2bh3]] - Xaa EcPro-AP+Zn+Mg+polypeptide<br />
-[[2bn7]] - Xaa EcPro-AP+Zn+Mg+Mn+polypeptide<br />
-[[2bha]], [[2bhd]] - Xaa EcPro-AP+Mg+polypeptide<br />
-[[1a16]] - Xaa EcPro-AP+Mn+polypeptide<br />
-[[1wbq]], [[2bhb]] - Xaa EcPro-AP+Zn+Mg<br />
-[[2bhc]] - Xaa EcPro-AP+Na+Mg<br />
-[[1wl6]] - Xaa EcPro-AP+Mg<br />
-[[1wi9]], [[1m35]], [[1jaw]] - Xaa EcPro-AP+Mn<br />
-[[1wlr]] - Xaa EcPro-AP<br />
-[[2bws]], [[2bwt]], [[2bwu]], [[2bwv]], [[2bww]], [[2bwx]], [[2bwy]] - Xaa EcPro-AP (mutant)<br />
-[[1w2m]] - Xaa EcPro-AP+Ca<br />
-[[1n51]] – Xaa EcPro-AP+apstatin<br />
-[[3ig4]] - Xaa Pro-AP+ Mn – ''Bacillus anthracis''<br />
-[[2zsg]] – X TmPro-AP – ''Thermatoga maritima''<br />
-[[3ctz]] – X hPro-AP – human<br />
-[[1x2b]], [[1x2e]], [[1wm1]] – SmPro-AP + inhibitor – ''Serratia marcescens''<br />
-[[1qtr]] – SmPro-AP<br />
-[[1xqv]] – TaPro-AP (mutant) – ''Thermoplasma acidophilum''<br />
-[[1xqw]], [[1xqx]], [[1xqy]], [[1xrl]], [[1xrm]], [[1xrn]], [[1xro]], [[1xrp]], [[1xrq]], [[1xrr]] – TaPro-AP+polypeptide<br />
-[[3azo]] – SmPro-AP – ''Streptomyces morookaensis''<br />
-[[3azp]] - SmPro-AP (mutant)<br />
-[[3azq]] - SmPro-AP (mutant) + PGG
-===Leucine aminopeptidase===
-[[3jru]] – Leu-AP – ''Xanthomonas oryzae''<br />
-[[2hc9]], [[2hb6]] – Leu-AP – ''Caenorhabditis elegans''<br />
-[[2ewb]] – bLeu-AP+zofenoprilat – bovine<br />
-[[1lam]], [[1lap]] – bLue-AP<br />
-[[1bpm]], [[1bpn]] – bLue-AP+Zn+Mg<br />
-[[1lan]], [[1lcp]] – bLue-AP+leucine derivative<br />
-[[1bll]] – bLue-AP+amastatin<br />
-[[2xdt]], [[2yd0]] – hLeu-AP soluble domain <br />
-[[3mdj]] - hLeu-AP soluble domain + inhibitor<br />
-[[3h8e]], [[3h8f]], [[3h8g]] – Leu-AP – ''Pseudomonas putida''<br />
-[[3kqx]], [[3kqz]], [[3kr4]], [[3kr5]] – PfLeu-AP <br />
-[[3fh4]], [[1rtq]], [[2dea]] – VpLeu-AP – Vibrio proteolyticus<br />
-[[3b35]], [[3b3t]], [[3b3v]], [[2anp]] - VpLeu-AP (mutant)<br />
-[[3b3c]], [[3b3s]], [[3b3w]] - VpLeu-AP (mutant)+Leu derivative<br />
-[[3b7i]] - VpLeu-AP (mutant)+Leu<br />
-[[1ft7]] - VpLeu-AP +Leu derivative<br />
-[[2nyq]], [[2iq6]] – VpLeu-AP+polypeptide<br />
-[[1lok]] – VpLeu-AP+Tris<br />
-[[2prq]] – VpLeu-AP+Co<br />
-[[1xry]], [[1txr]] – VpLeu-AP+bestatin<br />
-[[1gyt]] – EcLeu-AP<br />
-[[3qnf]] – hLeu-AP 1<br />
-[[3t8w]] – PfLeu-AP + Zn + inhibitor – ''Plasmodium falciparum''<br />
-[[3tc8]] - PdLeu-AP + Zn
-===Methionine aminopeptidase===
-[[3mr1]], [[3mx6]] – Met-AP+Mn – ''Rickettsia prowazekii''<br />
-[[2dfi]], [[1xgm]], [[1xgn]], [[1xgo]], [[1xgs]] – PfMet-AP+Co – ''Pyrococcus furiosus''<br />
-[[1wkm]] - PfMet-AP+Mn<br />
-[[3iu7]] – MtMet-AP+Mn +A02 – ''Mycobacterium tuberculosis''<br />
-[[3iu8]], [[3iu9]] - MtMet-AP+Ni + inhibitor<br />
-[[1yj3]] - MtMet-AP+Co<br />
-[[3pka]] - MtMet-AP+Mn<br />
-[[3pkb]], [[3pkc]], [[3pkd]], [[3pke]] - MtMet-AP+bengamide inhibitor<br />
-[[3tav]] – Met-AP + Mg – ''Mycobacterium abscessus''< br />
-[[1y1n]] - MtMet-AP+K<br />
-[[3fm3]] – EncMet-AP – ''Encephalitozoon cuniculi''<br />
-[[3fmq]], [[3fmr]] - EncMet-AP+angiogenesis inhibitor<br />
-[[3d27]], [[2q92]], [[2q93]], [[2q94]], [[2q95]], [[2q96]], [[2p98]], [[2p99]], [[2p9a]], [[2gu4]], [[2gu5]], [[2gu6]], [[2evc]], [[2evm]], [[2evo]], [[2bbv]], [[1xnz]] – EcMet-AP+Mn+inhibitor<br />
-[[2gg0]], [[2gg2]], [[2gg3]], [[2gg5]], [[2gg7]], [[2gg8]], [[2gg9]], [[2ggb]], [[2ggc]] - EcMet-AP+Co+inhibitor<br />
-[[1c21]], [[1c22]], [[1c23]], [[1c24]] - EcMet-AP +Co + methionine derivative<br />
-[[1c27]] - EcMet-AP +Co +norleucine<br />
-[[2ea2]], [[2ea4]], [[2ga2]], [[2nq6]], [[2nq7]], [[1yw7]], [[1yw8]], [[1yw9]] - hMet-AP+Mn+inhibitor<br />
-[[2gtx]], [[2gu7]] – EcMet-AP<br />
-[[1yvm]] – EcMet-AP (mutant)+Co+thiabendazole<br />
-[[1mat]] – EcMet-AP+Co<br />
-[[2mat]], [[4mat]] - EcMet-AP (mutant)+Co<br />
-[[3mat]] - EcMet-AP (mutant)+Co+bestatin derivative<br />
-[[2b3h]], [[2b3k]] - hMet-AP+Co<br />
-[[1boa]] - hMet-AP+Co+ angiogenesis inhibitor<br />
-[[2b3l]] – hMet-AP<br />
-[[1kq0]], [[1kq9]] – hMet-AP+methionine<br />
-[[2gz5]], [[2adu]], [[1qzy]], [[1b59]], [[1b6a]], [[1bn5]] – hMet-AP+Co+inhibitor<br />
-[[1r58]], [[1r5g]], [[1r5h]] - hMet-AP+Mn+inhibitor<br />
-[[2g6p]] - hMet-AP truncated+Mn+inhibitor<br />
-[[1qxw]], [[1qxy]], [[1qxz]] – Met-AP+Co+inhibitor - ''Staphylococcus aureus''<br />
-[[1o0x]] – TmMet-AP<br />
-[[3s6b]] – PfMet-AP + Fe
-===Aspartic acid aminopeptidase===
-[[3l6s]] – hAsp-AP+aspartic hydroxamate
-===Asparagine aminopeptidase===
-[[3c17]], [[2zak]] – EcAsn-AP (mutant)<br />
-[[2zal]] – EcAsn-AP+Asp<br />
-[[2gez]] – Asn-AP – ''Lupinus luteus''
-===Serine aminopeptidase===
-[[1b65]] – Ser-AP – ''Ochrobactrum anthropi''
-===Cytosolic aminopeptidase===
-[[3pei]] – Cyt-AP – ''Francisella tularensis''<br />
-[[3kzw]] – Cyt-AP – ''Staphylococcus aureus''<br />
-[[3ij3]] – Cyt-AP – ''Coxiella burnetii''
-===Aminopeptidase N===
-[[3ked]] – EcAPN+2,4-diaminobutyric acid – ''Escherichia coli''<br />
-[[2hpo]], [[2dq6]] – EcAPN<br />
-[[2hpt]], [[2dqm]] – EcAPN+bestatin<br />
-[[2zxg]] – EcAPN+transition state analog<br />
-[[3b2p]], [[3b2x]], [[3b34]], [[3b37]], [[3b3b]] – EcAPN+amino acid<br />
-[[2gtq]] – APN – ''Neisseria meningitides''
-===Non-specific aminopeptidase===
-[[2ek8]] – AnAP – Aneurinibacillus<br />
-[[2ek9]] – AnAP+bestatin<br />
-[[1y0r]], [[1xfo]] – PhAP<br />
-[[1y0y]] – PhAP+amastatin<br />
-[[1amp]] - VpAP<br />
-[[1cp6]], [[1igb]] – VpAP+inhibitor<br />
-[[3t8v]] – PfAP M1
-===Cold-activated aminopeptidase===
-[[3cia]] – Col-AP – ''Colwellia psychrerythraea''
-===Deblocking aminopeptidase===
-[[2gre]] – DAP – ''Bacillus cereus''
-===Heat stable aminopeptidase===
-[[2ayi]] – AmpT – ''Thermus thermophilus''
-===Aminopeptidase from ''Staphylococcus aureus''===
-[[1zjc]] - AmpS
-===Metalloaminopeptidase===
-[[3q43]], [[3q44]] – PfPFAP (mutant) + bestatin derivative<br />
-===''Stereomyces griesus'' aminopeptidase===
-[[1xjo]], [[1cp7]] - SGAP<br />
-[[1qq9]], [[1f2o]], [[1f2p]], [[1tf8]], [[1tf9]], [[1tkf]], [[1tkh]], [[1tkj]], [[1xbu]] - SGAP + amino acid
-===β-peptidyl AP===
-[[3n2w]] – SxBapA – ''Sphingosinicella xenopeptidilytica''<br />
-[[3n5i]] – SxBapA (mutant)<br />
-[[3n33]] – SxBapA + AEBSF<br />
-[[3ndv]], [[3nfb]] – SxBapA + ampicillin
@@ Line 207: / Line 39: @@
 [[Amino Acid Synthesis & Metabolism]]<br />
 [[Streptomyces griseus Aminopeptidase (SGAP)]]
+==References==
+<references/>
 [[Category:Topic Page]]

Aminopeptidase

From Proteopedia

Current revision

Contents

Function

Aminopeptidase from Aeromonas proteolytica[5]

S. griseus aminopeptidase

3D Structures of Aminopeptidase

Additional Resources

References

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

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Aminopeptidase from Aeromonas proteolytica^[5]