Hematocrit/hemoglobin Quantitative Trait Locus 3, is also known as hematocrit/hemoglobin quantitative trait locus on chromosome 22. An important gene associated with Hematocrit/hemoglobin Quantitative Trait Locus 3 is HCHGQ3 (Hematocrit/Hemoglobin Quantitative Trait Locus 3).