Transcobalamin I deficiency
Synonyms: Haptocorrin deficiency | TCI deficiency | Transcobalamin-1 deficiency
A rare genetic benign disorder of cobalamin transport due to variable degrees of transcobalamin I deficiency characterized by mildly low to almost undetectable plasma transcobalamin I levels and slighly low to absent serum cobalamin levels. Normal methylmalonic acid and homocysteine serum values and absence of megaloblastic anemia are reported. No specific clinical manifestations are associated and patients are typically asymptomatic.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http: //www.orphadata.org. Data version September 2023.
Newly diagnosed with
Transcobalamin I deficiency?
Our RARE Concierge Services Guides are available to assist you by providing information, resources and connections as you navigate your rare disease journey.
Mississippi Metabolics Foundation
Mississippi Metabolics Foundation (MMF) was founded to raise awareness, educate, and provide support to those living or caring for someone with genetic metabolic disorders/inborn errors of metabolism (IEM).
Louisiana Metabolic Disorders Coalition
We support, educate, and advocate for patients & families affected by metabolic disorders.
Syndromes Without A Name (SWAN) Australia
Provide information, support and advocacy to families caring for a child with an undiagnosed or rare genetic condition.
For a list of clinical trials in this disease area, please click here.