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(-) Description

Title :  CRYSTAL STRUCTURE OF E. COLI AMINOPEPTIDASE N IN COMPLEX WITH LYSINE
 
Authors :  A. Addlagatta, L. Gay, B. W. Matthews
Date :  19 Oct 07  (Deposition) - 06 May 08  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.50
Chains :  Asym./Biol. Unit :  A
Keywords :  Aminopeptidase N, Protease, Hydrolase, Thermolysin, Lysin, Membrane, Metal-Binding, Metalloprotease (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. Addlagatta, L. Gay, B. W. Matthews
Structural Basis For The Unusual Specificity Of Escherichia Coli Aminopeptidase N.
Biochemistry V. 47 5303 2008
PubMed-ID: 18416562  |  Reference-DOI: 10.1021/BI7022333

(-) Compounds

Molecule 1 - AMINOPEPTIDASE N
    ChainsA
    EC Number3.4.11.2
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System PlasmidPET15B
    Expression System StrainBL21 (DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    GeneAMINOPEPTIDASE N
    Organism ScientificESCHERICHIA COLI
    Organism Taxid562
    StrainE. COLI K12
    SynonymALPHA-AMINOACYLPEPTIDE HYDROLASE

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (5, 16)

Asymmetric/Biological Unit (5, 16)
No.NameCountTypeFull Name
1GOL9Ligand/IonGLYCEROL
2LYS1Mod. Amino AcidLYSINE
3MLI3Ligand/IonMALONATE ION
4NA2Ligand/IonSODIUM ION
5ZN1Ligand/IonZINC ION

(-) Sites  (16, 16)

Asymmetric Unit (16, 16)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREHIS A:297 , HIS A:301 , GLU A:320 , LYS A:960BINDING SITE FOR RESIDUE ZN A 950
02AC2SOFTWARESER A:332 , ASP A:333 , GLY A:335 , HOH A:1233 , HOH A:1364 , HOH A:1721BINDING SITE FOR RESIDUE NA A 951
03AC3SOFTWAREASP A:452 , HOH A:1394 , HOH A:1625 , HOH A:1981 , HOH A:1982BINDING SITE FOR RESIDUE NA A 952
04AC4SOFTWAREGLU A:121 , ALA A:262 , GLU A:264 , HIS A:297 , GLU A:298 , HIS A:301 , GLU A:320 , ASN A:373 , TYR A:376 , TYR A:381 , HOH A:1152 , HOH A:1306 , HOH A:1323BINDING SITE FOR RESIDUE LYS A 960
05AC5SOFTWAREARG A:641 , GLU A:642 , THR A:645 , ARG A:686 , PHE A:690 , HOH A:1179 , HOH A:1299 , HOH A:1686 , HOH A:1775 , HOH A:1932 , HOH A:2044 , HOH A:2045 , HOH A:2046BINDING SITE FOR RESIDUE MLI A 990
06AC6SOFTWAREMET A:260 , GLY A:261 , TYR A:275 , ARG A:783 , ARG A:825 , HOH A:1498 , HOH A:1918BINDING SITE FOR RESIDUE MLI A 991
07AC7SOFTWAREGLU A:69 , PRO A:70 , TRP A:71 , THR A:72 , PRO A:224 , TRP A:225 , THR A:280 , TYR A:288 , HOH A:1101 , HOH A:1444BINDING SITE FOR RESIDUE MLI A 992
08AC8SOFTWARELEU A:532 , TRP A:546 , ASP A:566 , ALA A:567 , SER A:570 , HOH A:1741BINDING SITE FOR RESIDUE GOL A 970
09AC9SOFTWARESER A:63 , TRP A:71 , TRP A:74 , ARG A:669 , GLU A:671 , HOH A:1087 , HOH A:1732BINDING SITE FOR RESIDUE GOL A 971
10BC1SOFTWARELEU A:61 , TRP A:74 , ARG A:669 , GLU A:671 , HOH A:1600 , HOH A:1757 , HOH A:2076 , HOH A:2083 , HOH A:2118BINDING SITE FOR RESIDUE GOL A 972
11BC2SOFTWAREARG A:681 , GLN A:703 , ALA A:707 , ASN A:708 , ASN A:709 , ASP A:712 , HOH A:1229 , HOH A:1292 , HOH A:1908BINDING SITE FOR RESIDUE GOL A 974
12BC3SOFTWAREMET A:260 , TYR A:376 , THR A:377 , LEU A:378 , TYR A:381 , GLU A:382 , ARG A:825 , HOH A:1906 , HOH A:1918BINDING SITE FOR RESIDUE GOL A 975
13BC4SOFTWAREGLY A:261 , TYR A:275 , ARG A:293 , HIS A:297 , TYR A:381 , HOH A:1306 , HOH A:1342 , HOH A:1906BINDING SITE FOR RESIDUE GOL A 976
14BC5SOFTWAREASP A:58 , LEU A:59 , LYS A:60 , GLU A:97 , ILE A:98 , HOH A:1507 , HOH A:1886 , HOH A:2043BINDING SITE FOR RESIDUE GOL A 977
15BC6SOFTWARETHR A:393 , ALA A:486 , CYS A:534 , GLU A:535 , SER A:537 , HOH A:1197 , HOH A:1395 , HOH A:2067BINDING SITE FOR RESIDUE GOL A 978
16BC7SOFTWAREPHE A:704 , ALA A:707 , LYS A:738 , TRP A:739 , HOH A:1258 , HOH A:1673 , HOH A:2140BINDING SITE FOR RESIDUE GOL A 979

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3B2X)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Glu A:121 -Ala A:122

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3B2X)

(-) PROSITE Motifs  (1, 1)

Asymmetric/Biological Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ZINC_PROTEASEPS00142 Neutral zinc metallopeptidases, zinc-binding region signature.AMPN_ECOLI294-303  1A:294-303

(-) Exons   (0, 0)

(no "Exon" information available for 3B2X)

(-) 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:867
 aligned with AMPN_ECOLI | P04825 from UniProtKB/Swiss-Prot  Length:870

    Alignment length:867
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           870 
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504       514       524       534       544       554       564       574       584       594       604       614       624       634       644       654       664       674       684       694       704       714       724       734       744       754       764       774       784       794       804       814       824       834       844       854       864     | 
           AMPN_ECOLI     5 PQAKYRHDYRAPDYQITDIDLTFDLDAQKTVVTAVSQAVRHGASDAPLRLNGEDLKLVSVHINDEPWTAWKEEEGALVISNLPERFTLKIINEISPAANTALEGLYQSGDALCTQCEAEGFRHITYYLDRPDVLARFTTKIIADKIKYPFLLSNGNRVAQGELENGRHWVQWQDPFPKPCYLFALVAGDFDVLRDTFTTRSGREVALELYVDRGNLDRAPWAMTSLKNSMKWDEERFGLEYDLDIYMIVAVDFFNMGAMENKGLNIFNSKYVLARTDTATDKDYLDIERVIGHEYFHNWTGNRVTCRDWFQLSLKEGLTVFRDQEFSSDLGSRAVNRINNVRTMRGLQFAEDASPMAHPIRPDMVIEMNNFYTLTVYEKGAEVIRMIHTLLGEENFQKGMQLYFERHDGSAATCDDFVQAMEDASNVDLSHFRRWYSQSGTPIVTVKDDYNPETEQYTLTISQRTPATPDQAEKQPLHIPFAIELYDNEGKVIPLQKGGHPVNSVLNVTQAEQTFVFDNVYFQPVPALLCEFSAPVKLEYKWSDQQLTFLMRHARNDFSRWDAAQSLLATYIKLNVARHQQGQPLSLPVHVADAFRAVLLDEKIDPALAAEILTLPSVNEMAELFDIIDPIAIAEVREALTRTLATELADELLAIYNANYQSEYRVEHEDIAKRTLRNACLRFLAFGETHLADVLVSKQFHEANNMTDALAALSAAVAAQLPCRDALMQEYDDKWHQNGLVMDKWFILQATSPAANVLETVRGLLQHRSFTMSNPNRIRSLIGAFAGSNPAAFHAEDGSGYLFLVEMLTDLNSRNPQVASRLIEPLIRLKRYDAKRQEKMRAALEQLKGLENLSGDLYEKITKALA-   -
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...ee.hhh....eeeeeeeeeee.....eeeeeeeeeee.......eeee....eeeeeee..ee...eeee..eeee.....eeeeeeeeeehhhhh....eeeee..eeeee....hhhhh..........eeeeeeeeee.....eeee..eeeeeee....eeeeeeeeeeeehhhhh.eeee..eeeeeeee.....eeeeeeee...hhhhhhhhhhhhhhhhhhhhhhhh......eeeeeee......ee....eeeee.hhh.......hhhhhhhhhhhhhhhhhh......eee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..........ee.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.eeehhhhhhhhhhhhhh......hhhhhh....eeeeeeeee....eeeeeeeee..............eeeeeeee.........ee..ee...eeee...eeeeee.......eeee........eee...hhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhh......hhhhhhhhhhhhhh...hhhhhhhhh...hhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhh...hhhhhhhhhhhhhh.hhhhhhhhhhhhhh....hhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ZINC_PROTE---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3b2x A   5 PQAKYRHDYRAPDYQITDIDLTFDLDAQKTVVTAVSQAVRHGASDAPLRLNGEDLKLVSVHINDEPWTAWKEEEGALVISNLPERFTLKIINEISPAANTALEGLYQSGDALCTQCEAEGFRHITYYLDRPDVLARFTTKIIADKIKYPFLLSNGNRVAQGELENGRHWVQWQDPFPKPCYLFALVAGDFDVLRDTFTTRSGREVALELYVDRGNLDRAPWAMTSLKNSMKWDEERFGLEYDLDIYMIVAVDFFNMGAMENKGLNIFNSKYVLARTDTATDKDYLDIERVIGHEYFHNWTGNRVTCRDWFQLSLKEGLTVFRDQEFSSDLGSRAVNRINNVRTMRGLQFAEDASPMAHPIRPDMVIEMNNFYTLTVYEKGAEVIRMIHTLLGEENFQKGMQLYFERHDGSAATCDDFVQAMEDASNVDLSHFRRWYSQSGTPIVTVKDDYNPETEQYTLTISQRTPATPDQAEKQPLHIPFAIELYDNEGKVIPLQKGGHPVNSVLNVTQAEQTFVFDNVYFQPVPALLCEFSAPVKLEYKWSDQQLTFLMRHARNDFSRWDAAQSLLATYIKLNVARHQQGQPLSLPVHVADAFRAVLLDEKIDPALAAEILTLPSVNEMAELFDIIDPIAIAEVREALTRTLATELADELLAIYNANYQSEYRVEHEDIAKRTLRNACLRFLAFGETHLADVLVSKQFHEANNMTDALAALSAAVAAQLPCRDALMQEYDDKWHQNGLVMDKWFILQATSPAANVLETVRGLLQHRSFTMSNPNRIRSLIGAFAGSNPAAFHAEDGSGYLFLVEMLTDLNSRNPQVASRLIEPLIRLKRYDAKRQEKMRAALEQLKGLENLSGDLYEKITKALAK 960
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504       514       524       534       544       554       564       574       584       594       604       614       624       634       644       654       664       674       684       694       704       714       724       734       744       754       764       774       784       794       804       814       824       834       844       854       864     ||
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           870|
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            960

   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 '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 3B2X)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3B2X)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3B2X)

(-) Gene Ontology  (14, 14)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (AMPN_ECOLI | P04825)
molecular function
    GO:0004177    aminopeptidase activity    Catalysis of the hydrolysis of N-terminal amino acid residues from in a polypeptide chain.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0070006    metalloaminopeptidase activity    Catalysis of the hydrolysis of N-terminal amino acid residues from a polypeptide chain by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions.
    GO:0008237    metallopeptidase activity    Catalysis of the hydrolysis of peptide bonds by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0042277    peptide binding    Interacting selectively and non-covalently with peptides, any of a group of organic compounds comprising two or more amino acids linked by peptide bonds.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0043171    peptide catabolic process    The chemical reactions and pathways resulting in the breakdown of peptides, compounds of 2 or more (but usually less than 100) amino acids where the alpha carboxyl group of one is bound to the alpha amino group of another.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        AMPN_ECOLI | P048252dq6 2dqm 2hpo 2hpt 2zxg 3b2p 3b34 3b37 3b3b 3ked 3puu 3qjx 4q4e 4q4i 4xmt 4xmu 4xmv 4xmw 4xmx 4xmz 4xn1 4xn2 4xn4 4xn5 4xn7 4xn8 4xn9 4xna 4xnb 4xnd 4xo3 4xo4 4xo5 5mfr 5mfs 5mft

(-) Related Entries Specified in the PDB File

2hpo THE SAME PROTEIN IN THE APO FORM
2hpt THE SAME PROTEIN COMPLEXED WITH BESTATIN
3b2p THE SAME PROTEIN COMPLEXED WITH ARGININE
3b34
3b37
3b3b