6LZB | pdb_00006lzb

crystal structure of Human Methionine aminopeptidase (HsMetAP1b) in complex with AN-P2-5H-06


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.29 Å
  • R-Value Free: 
    0.200 (Depositor), 0.205 (DCC) 
  • R-Value Work: 
    0.163 (Depositor), 0.170 (DCC) 
  • R-Value Observed: 
    0.165 (Depositor) 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history

Literature

Selective inhibition of Helicobacter pylori methionine aminopeptidase by azaindole hydroxamic acid derivatives: Design, synthesis, in vitro biochemical and structural studies.

Bala, S.Yellamanda, K.V.Kadari, A.Ravinuthala, V.S.U.Kattula, B.Singh, O.V.Gundla, R.Addlagatta, A.

(2021) Bioorg Chem 115: 105185-105185

  • DOI: https://doi.org/10.1016/j.bioorg.2021.105185
  • Primary Citation Related Structures: 
    6LZB, 6LZC

  • PubMed Abstract: 

    Methionine aminopeptidases (MetAPs) are an important class of enzymes that work co-translationally for the removal of initiator methionine. Chemical inhibition or gene knockdown is lethal to the microbes suggesting that they can be used as antibiotic targets. However, sequence and structural similarity between the microbial and host MetAPs has been a challenge in the identification of selective inhibitors. In this study, we have analyzed several thousands of MetAP sequences and established a pattern of variation in the S1 pocket of the enzyme. Based on this knowledge, we have designed a library of 17 azaindole based hydroxamic acid derivatives which selectively inhibited the MetAP from H. pylori compared to the human counterpart. Structural studies provided the molecular basis for the selectivity.


  • Organizational Affiliation
    • Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India.

Macromolecule Content 

  • Total Structure Weight: 37.67 kDa 
  • Atom Count: 2,694 
  • Modeled Residue Count: 304 
  • Deposited Residue Count: 329 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Methionine aminopeptidase 1329Homo sapiensMutation(s): 0 
Gene Names: METAP1KIAA0094
EC: 3.4.11.18
UniProt & NIH Common Fund Data Resources
Find proteins for P53582 (Homo sapiens)
Explore P53582 
Go to UniProtKB:  P53582
PHAROS:  P53582
GTEx:  ENSG00000164024 
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP53582
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
EYF
(Subject of Investigation/LOI)

Query on EYF



Download:Ideal Coordinates CCD File
D [auth A]1-[(3-methoxyphenyl)methyl]-~{N}-oxidanyl-pyrrolo[2,3-b]pyridine-5-carboxamide
C16 H15 N3 O3
CUMWZHBISABRRE-UHFFFAOYSA-N
GOL
(Subject of Investigation/LOI)

Query on GOL



Download:Ideal Coordinates CCD File
E [auth A],
F [auth A],
G [auth A]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
CO
(Subject of Investigation/LOI)

Query on CO



Download:Ideal Coordinates CCD File
B [auth A],
C [auth A]
COBALT (II) ION
Co
XLJKHNWPARRRJB-UHFFFAOYSA-N
MG
(Subject of Investigation/LOI)

Query on MG



Download:Ideal Coordinates CCD File
I [auth A]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
NA
(Subject of Investigation/LOI)

Query on NA



Download:Ideal Coordinates CCD File
H [auth A]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.29 Å
  • R-Value Free:  0.200 (Depositor), 0.205 (DCC) 
  • R-Value Work:  0.163 (Depositor), 0.170 (DCC) 
  • R-Value Observed: 0.165 (Depositor) 
Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.573α = 90
b = 77.251β = 91.54
c = 48.623γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
Aimlessdata scaling
MOLREPphasing
PDB_EXTRACTdata extraction
Cootmodel building
XDSdata reduction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Department of Science & Technology (DST, India)IndiaEMR/2015/000461

Revision History  (Full details and data files)

  • Version 1.0: 2021-02-24
    Type: Initial release
  • Version 1.1: 2021-08-18
    Changes: Database references
  • Version 1.2: 2023-11-29
    Changes: Data collection, Refinement description
  • Version 1.3: 2025-09-17
    Changes: Derived calculations, Structure summary