UNIPROT #

Q2TB90

PROTEIN NAME

HKDC1

SYNONYMS

BC016235 antibody; Hexokinase domain containing 1 antibody; Hexokinase domain-containing protein 1 antibody; Hkdc1 antibody; HKDC1_HUMAN antibody; Putative hexokinase HKDC1 antibody

SEQUENCE SIMILARITIES

Belongs to the hexokinase family.

TISSUE SPECIFICITY

Widely expressed. Highly expressed in the brush border, surface epithelium and the myenteric plexus of the small and large intestines; the acinar centrocytes and interlobular ducts of the pancreas; and the alveolar macrophages in the lungs (at protein level). Present at moderate level in the thyroid follicular epithelium (at protein level).

SUBCELLULAR LOCATION

Cytosol. Mitochondrion.

FUNCTION

As the recently identified fifth isoform of hexokinase, HKDC1 catalyzes the rate-limiting and first obligatory step of glucose metabolism, which is the ATP-dependent phosphorylation of glucose to G6P. Though its particular biological function remains unclear, HKDC1 has been suggested to play a more major role in glucose metabolism during pregnancy, as the mother would need to provide enough energy for both herself and the fetus. HKDC1 is ubiquitously expressed, with the highest levels of expression in pharynx, thymus, colon, esophagus, and eye tissue.