ACTRT1, Official Symbol ACTRT1provided by HGNC Official Full Name actin related protein T1provided by HGNC Primary source HGNC:HGNC:24027 See related Ensembl:ENSG00000123165 MIM:300487; AllianceGenome:HGNC:24027 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as AIP1; ARIP1; ARPT1; HSD27 Summary This gene encodes a protein related to the cytoskeletal protein beta-actin. This protein is a major component of the calyx in the perinuclear theca of mammalian sperm heads, and it therefore likely functions in spermatid formation. This gene is intronless and is similar to a related gene located on chromosome 1. A related pseudogene has also been identified approximately 75 kb downstream of this gene on chromosome X. [provided by RefSeq, May 2010] Orthologs mouse all