4L41

Human Lactose synthase: A 2:1 complex between human alpha-lactalbumin and human beta1,4-galactosyltransferase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 

wwPDB Validation 3D Report Full Report



Literature

Crystal Structure of Human Lactose Synthase forms a Novel 1:2 Complex between beta1,4Galactosyltransferase 1 and alpha-Lactalbumin Proteins

Ramakrishnan, B.Qasba, P.K.

To be published.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Alpha-lactalbuminA, B124Homo sapiensMutation(s): 0 
Gene Names: 4-galactosyltransferasebeta1LALBALYZL7
Find proteins for P00709 (Homo sapiens)
Explore P00709 
Go to UniProtKB:  P00709
NIH Common Fund Data Resources
PHAROS  P00709
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Beta-1,4-galactosyltransferase 1C287Homo sapiensMutation(s): 2 
Gene Names: alpha-lactalbuminB4GALT1GGTB2
EC: 2.4.1.22 (PDB Primary Data), 2.4.1 (UniProt), 2.4.1.38 (UniProt), 2.4.1.90 (UniProt), 2.4.1.275 (UniProt)
Find proteins for P15291 (Homo sapiens)
Explore P15291 
Go to UniProtKB:  P15291
NIH Common Fund Data Resources
PHAROS  P15291
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.39α = 90
b = 65.21β = 114.45
c = 71.72γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHENIXmodel building
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-02
    Type: Initial release