1A4I

HUMAN TETRAHYDROFOLATE DEHYDROGENASE / CYCLOHYDROLASE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.199 

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This is version 1.2 of the entry. See complete history. 


Literature

The 3-D structure of a folate-dependent dehydrogenase/cyclohydrolase bifunctional enzyme at 1.5 A resolution.

Allaire, M., Li, Y., MacKenzie, R.E., Cygler, M.

(1998) Structure 6: 173-182

  • DOI: 10.1016/s0969-2126(98)00019-7
  • Primary Citation of Related Structures:  
    1A4I

  • PubMed Abstract: 

    • The interconversion of two major folate one-carbon donors occurs through the sequential activities of NAD(P)-dependent methylene[H4]folate dehydrogenase (D) and methenyl[H4]folate cyclohydrolase (C). These activities often coexist as part of a multifunctional enzyme and there are several lines of evidence suggesting that their substrates bind at overlapping sites ...

    The interconversion of two major folate one-carbon donors occurs through the sequential activities of NAD(P)-dependent methylene[H4]folate dehydrogenase (D) and methenyl[H4]folate cyclohydrolase (C). These activities often coexist as part of a multifunctional enzyme and there are several lines of evidence suggesting that their substrates bind at overlapping sites. Little is known, however, about the nature of this site or the identity of the active-site residues for this enzyme family.

    Organizational Affiliation: 

    Biotechnology Research Institute, Montréal, Québec, Canada.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
METHYLENETETRAHYDROFOLATE DEHYDROGENASE / METHENYLTETRAHYDROFOLATE CYCLOHYDROLASEA, B301Homo sapiensMutation(s): 0 
Gene Names: MTHFD1, MTHFC, MTHFD
EC: 1.5.1.5 (PDB Primary Data), 3.5.4.9 (PDB Primary Data), 6.3.4.3 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P11586 (Homo sapiens)
Explore P11586 
Go to UniProtKB:  P11586
PHAROS:  P11586
GTEx:  ENSG00000100714
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NDP (Subject of Investigation/LOI)
Query on NDP
Download Ideal Coordinates CCD File 
C [auth A], D [auth B]NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.199 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.523α = 90
b = 135.843β = 90
c = 61.403γ = 90
Software Package:
Software NamePurpose
MLPHAREphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-02-09
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance