Gene Information
Gene NameHN
OrganismHomo sapiens (Human)
Gene Length24
Protein NamesHumanin (Humanin mitochondrial) (HNM)
Target NameNA
Target TypeNA
Gene AgeNA
Evolutionary StageNA
AlphaFoldDBQ8IVG9
Gene CardMT-RNR2
Uniprot IDQ8IVG9
PfamPF15040
In ASDno
Allosteric PredictionNA
Ortholog in AnimalsNA
OhnologsNA
ParalogsNA
TissueNA
Tissue SpecificityExpressed in testis, seminal plasma and sperm (at protein level) (PubMed:20542501, PubMed:30920769). Higher seminal plasma levels are associated with normospermia than with oligospermia, asthenospermia or oligoasthenospermia (at protein level) (PubMed:30920769). Higher sperm levels are associated with normospermia than with asthenospermia (at protein level) (PubMed:30920769). Expressed in retinal epithelial cells (at protein level) (PubMed:26990160). Expressed in the heart, skeletal muscle, kidney and liver. Lesser but significant expression is observed in the brain and the gastrointestinal tract. Expressed in the AD brain, where it is found in some of the large intact neurons of the occipital lobes and small and round reactive glial cells in the hippocampus. {ECO:0000269|PubMed:11371646, ECO:0000269|PubMed:12009529, ECO:0000269|PubMed:19477263, ECO:0000269|PubMed:20542501, ECO:0000269|PubMed:26990160, ECO:0000269|PubMed:30920769}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 1Y32  (NMR  2GD3  (NMR  5GIW  (NMR  7WVX  (EM  2.80A 
DBSNP NA 
Subcellular location [CC]Secreted {ECO:0000269|PubMed:11371646, ECO:0000269|PubMed:12860203, ECO:0000269|PubMed:19623253, ECO:0000269|PubMed:26990160}. Cytoplasm {ECO:0000269|PubMed:11371646, ECO:0000269|PubMed:12670303, ECO:0000269|PubMed:15661737, ECO:0000269|PubMed:20542501, ECO:0000269|PubMed:26990160}. Cell projection, cilium, flagellum {ECO:0000269|PubMed:20542501, ECO:0000269|PubMed:30920769}. Nucleus {ECO:0000269|PubMed:20542501}. Mitochondrion {ECO:0000269|PubMed:20542501, ECO:0000269|PubMed:26990160}. Note=Localizes to the sperm flagellum where it is highly concentrated in the midpiece (PubMed:20542501, PubMed:30920769). Detected in the cytoplasm and nucleus of spermatocytes and spermatids (PubMed:20542501). Also detected in sperm mitochondria (PubMed:20542501). In retinal pigment epithelium cells, detected in cytoplasm and mitochondria (PubMed:26990160). {ECO:0000269|PubMed:20542501, ECO:0000269|PubMed:26990160, ECO:0000269|PubMed:30920769}.
Mouse PG classificationNA
click here to return to the previous page