Type : Phenotype or locus, molecular basis unknown;
Alternative titles and symbols : Tcn1 deficiency; Cobalamin pseudodeficiency due to transcobalamin deficiency; Cobalamin r binder protein deficiency;
Included titles and symbols : Transcobalamin I deficiency with lactoferrin deficiency; R binder deficiency with lactoferrin deficiency;
Inheritance : Autosomal recessive;
Laboratory abnormalities : Decreased serum and salivary lactoferrin has been described in 1 family; Decreased serum cobalamin; Decreased transcobalamin I in saliva, serum, gastric juice, and cerebrospinal fluid;