Gene Information
Gene NameHIWI
OrganismHomo sapiens (Human)
Gene Length861
Protein NamesPiwi-like protein 1 (EC 3.1.26.-)
Target NameNA
Target TypeNA
Gene AgeNA
Evolutionary StageNA
AlphaFoldDBQ96J94
Gene CardPIWIL1
Uniprot IDQ96J94
PfamPF08699; PF05831; PF02170; PF02171
In ASDno
Allosteric PredictionNA
Ortholog in AnimalsNA
OhnologsNA
ParalogsNA
TissueNA
Tissue SpecificityExpressed in spermatocytes and spermatids. Also detected in prostate cancer (at protein level). Detected in most fetal and adult tissues. Expressed in testes, specifically in germline cells;
detected in spermatocytes and spermatids during spermatogenesis. Increased expression in testicular tumors originating from embryonic germ cells with retention of germ cells phenotype. No expression in testicular tumors of somatic origin, such as Sertoli cell and Leydig cell tumors. Overexpressed in gastric cancer cells. Isoform 3: Ubiquitously expressed, and specifically in CD34(+) hematopoietic progenitor cells but not in more differentiated cells. {ECO:0000269|PubMed:11154219, ECO:0000269|PubMed:12037681, ECO:0000269|PubMed:12906857, ECO:0000269|PubMed:23436708}.
Pharmacological Animal ModelsNULL(Chimpanzee);NULL(Mouse);0.002419(Rat);0.025(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 2L5C  (NMR  2L5D  (NMR  3O3I  (X-ray  2.80A  3O6E  (X-ray  2.90A  3O7V  (X-ray  2.10A  6PI7  (X-ray  2.80A 
DBSNP rs17856812  rs1106042  rs17852568 
Subcellular location [CC]Cytoplasm {ECO:0000250|UniProtKB:Q9JMB7}. Note=Component of the meiotic nuage, also named P granule, a germ-cell-specific organelle required to repress transposon activity during meiosis. Also present in chromatoid body. {ECO:0000250|UniProtKB:Q9JMB7}.
Mouse PG classificationNA
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