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MAMMALIAN PHENOTYPE - ANNOTATIONS

The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.

Term:increased DN4 thymocyte number
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Accession:MP:0010135 term browser browse the term
Definition:increased number of thymocytes that have the cell surface marker phenotype CD4-negative, CD8-negative, CD44-negative, CD25-negative, and pre-TCR-positive.
Comment:Note that this type of thymocyte has passed the beta-selection checkpoint and is rapidly proliferating and beginning to rearrange the T cell receptor alpha chain.
Synonyms:exact_synonym: increased DN4 alpha-beta immature T-lymphocyte number;   increased DN4 cell number;   increased DN4 immature T cell number
 xref: CL:0000808



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Term Annotations click to browse term
  mammalian phenotype 5428
    hematopoietic system phenotype 267
      abnormal hematopoietic system morphology/development 247
        abnormal thymus morphology 82
          increased thymocyte number 0
            increased DN4 thymocyte number 0
Path 2
Term Annotations click to browse term
  mammalian phenotype 5428
    hematopoietic system phenotype 267
      abnormal hematopoietic system morphology/development 247
        abnormal hematopoietic cell morphology 182
          abnormal blood cell morphology 95
            abnormal hemopoiesis 16
              abnormal definitive hematopoiesis 16
                abnormal leukopoiesis 16
                  abnormal lymphopoiesis 16
                    abnormal T cell differentiation 16
                      abnormal double-negative T cell morphology 2
                        increased double-negative T cell number 2
                          increased DN4 thymocyte number 0
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