Aliases for ARHGAP45 Gene
External Ids for ARHGAP45 Gene
Previous HGNC Symbols for ARHGAP45 Gene
GeneCards Summary for ARHGAP45 Gene
ARHGAP45 (Rho GTPase Activating Protein 45) is a Protein Coding gene. Diseases associated with ARHGAP45 include Hematopoietic Stem Cell Transplantation and Acute Graft Versus Host Disease. Among its related pathways are Signaling by Rho GTPases and Innate Immune System. An important paralog of this gene is ARHGAP29.
UniProtKB/Swiss-Prot for ARHGAP45 Gene
Contains a GTPase activator for the Rho-type GTPases (RhoGAP) domain that would be able to negatively regulate the actin cytoskeleton as well as cell spreading. However, also contains N-terminally a BAR-domin which is able to play an autoinhibitory effect on this RhoGAP activity.
Precursor of the histocompatibility antigen HA-1. More generally, minor histocompatibility antigens (mHags) refer to immunogenic peptide which, when complexed with MHC, can generate an immune response after recognition by specific T-cells. The peptides are derived from polymorphic intracellular proteins, which are cleaved by normal pathways of antigen processing. The binding of these peptides to MHC class I or class II molecules and its expression on the cell surface can stimulate T-cell responses and thereby trigger graft rejection or graft-versus-host disease (GVHD) after hematopoietic stem cell transplantation from HLA-identical sibling donor. GVHD is a frequent complication after bone marrow transplantation (BMT), due to mismatch of minor histocompatibility antigen in HLA-matched sibling marrow transplants. Specifically, mismatching for mHag HA-1 which is recognized as immunodominant, is shown to be associated with the development of severe GVHD after HLA-identical BMT. HA-1 is presented to the cell surface by MHC class I HLA-A*0201, but also by other HLA-A alleles. This complex specifically elicits donor-cytotoxic T-lymphocyte (CTL) reactivity against hematologic malignancies after treatment by HLA-identical allogenic BMT. It induces cell recognition and lysis by CTL.