1HUP

HUMAN MANNOSE BINDING PROTEIN CARBOHYDRATE RECOGNITION DOMAIN TRIMERIZES THROUGH A TRIPLE ALPHA-HELICAL COILED-COIL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Human mannose-binding protein carbohydrate recognition domain trimerizes through a triple alpha-helical coiled-coil.

Sheriff, S.Chang, C.Y.Ezekowitz, R.A.

(1994) Nat.Struct.Mol.Biol. 1: 789-794


  • PubMed Abstract: 
  • Human mannose-binding protein is a hexamer of trimers with each subunit consisting of an amino-terminal region rich in cysteine, 19 collagen repeats, a 'neck', and a carbohydrate recognition domain that requires calcium to bind ligand. A 148-residue ...

    Human mannose-binding protein is a hexamer of trimers with each subunit consisting of an amino-terminal region rich in cysteine, 19 collagen repeats, a 'neck', and a carbohydrate recognition domain that requires calcium to bind ligand. A 148-residue peptide, consisting of the 'neck' and carbohydrate recognition domains forms trimers in solution and in crystals. The structure of this trimeric peptide has been determined in two different crystal forms. The 'neck' forms a triple alpha-helical coiled-coil. Each alpha-helix interacts with a neighbouring carbohydrate recognition domain. The spatial arrangement of the carbohydrate recognition domains suggest how MBP trimers form the basic recognition unit for branched oligosaccharides on microorganisms.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Analysis of a Trimeric Form of Human Mannose Binding Protein
      Chang, C.Y.,Sastry, K.N.,Gillies, S.D.,Ezekowitz, R.A.B.,Sheriff, S.
      (1994) J.Mol.Biol. 241: 125


    Organizational Affiliation

    Bristol-Myers Squibb Pharmaceutical Research Institute, Princeton, NJ 08543-4000, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MANNOSE-BINDING PROTEIN
A
141Homo sapiensMutation(s): 0 
Gene Names: MBL2 (COLEC1, MBL)
Find proteins for P11226 (Homo sapiens)
Go to Gene View: MBL2
Go to UniProtKB:  P11226
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Work: 0.199 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 76.680α = 90.00
b = 76.680β = 90.00
c = 58.580γ = 120.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORrefinement
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1994-09-21 
  • Released Date: 1995-10-15 
  • Deposition Author(s): Sheriff, S.

Revision History 

  • Version 1.0: 1995-10-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2015-10-14
    Type: Refinement description