Your browser does not support javascript:   Search for gard hereSearch for news-and-events here.


Genetic and Rare Diseases Information Center (GARD)

Print friendly version

Methylmalonic aciduria with homocystinuria cbl f

See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.


Methylmalonic aciduria with homocystinuria cbl f is a form of methylmalonic acidemia with homocystinuria, an inborn error of vitamin B12 (cobalamin) metabolism that can cause the following signs and symptoms: megaloblastic anemia, lack of energy, growth delays, developmental delay, intellectual disability and seizures. The appearance of signs and symptoms can vary from birth to 11 years old. The disorder is caused by mutations in the LMBRD1 gene and is transmitted in an autosomal recessive manner. Treatment options include vitamin B12 injections and dietary management.[1][2]

Last updated: 3/5/2014


  1. Rosenblaat D and Watkins D. Methylmalonic acidemia with homocystinuria, type cblF. Orphanet. March, 2012; Accessed 3/5/2014.
  2. Irini Manoli and Charles P Venditti. Methylmalonic Acidemia. GeneReviews. September 28, 2010; Accessed 6/18/2012.
Your Questions Answered
by the Genetic and Rare Diseases Information Center

1 question(s) from the public on Methylmalonic aciduria with homocystinuria cbl f have been answered. See questions and answers. You can also submit a new question.
On this page

In Depth Information

  • Medscape Reference provides information on this topic. Click on the link to view this information. You may need to register to view the medical textbook, but registration is free.
  • The Online Mendelian Inheritance in Man (OMIM) is an catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.