Protein
Epididymis-specific alpha-mannosidase
Function
Can digest both p-nitro-phenyl-alpha-D-mannoside and high mannose oligosaccharide (Man(8)-GlcNAc(2)). May be involved in sperm maturation. Has a possible role in specific sperm-egg interaction since sperm surface mannosidase acts like a receptor for mannose-containing oligosaccharides located on the zona pellucida.
Similarity
Belongs to the glycosyl hydrolase 38 family.
Sequence
MGPHSWLPLFMQLALLGPQWALHFYKVKVFVVPHSHMDVGWLHTVQESMQVYVPDVYNSVVEALTRGKRRRFIAVEQEYFRLWWDGFASAKRKQQVRQLLAEQRLEFVLGGQVMHDEAVTHFDDQILQLTEGHGFLYETFGIRPQFSWQVDPFGASATTPTLLALAGFNGHIISRIDYDLKDTMQHTQGLQFVWRGSRSLEARQEIFTHVLDQYSYCSDGFMWNGSPRFPDRPFDMDYSAVEMPVSQDSMNHYVLNLVDNVNKRAAWFRTQHVLWPWGCDRQFFNASQQFANMDRLMDHINKHTPELGISMQYATLAEYFQAVFAQDVSWQVRDHRDFLPYSSAPEQTWTGFYTSQSGLKRLARRASALLYAGESLFTRYMLSAAHRFLDPAWALTQLQQLRWAVSEVQHHDGITGTHILAVRDMFVEHLTTGMAGVRKLMDSIAQDMPLTHSGPEPGGHVAMVYNPLAWTVTTVITLTVSFPEVSVTDESGRPVLAQVQDSKETPSAYDLHVLTTIPGLSYQHYIIKPIRKAREDSQEAAATVPSTIQFGLKLRRQDGQVGRNLVPVKNSCYTVFLDKDTNLMHSIWERQSNRTVRMSQEFLAYRSVYGYEEAVTSDNYLFTPNGTAEPAWAAVRMEVVEGQLLSEIRQYFYRQANDSDHTYAIYSRLAHGPQDSAGELLCHRIEQEYRVGPLELNHEVVLRTSTSLNTGLVLYSDNNGYQMQRRTYRHDRNNSVSLNYYPMAQSAFIQDGGSRLVLLSEQAHGVSSQGNGQVEVMLHRRLWNKLEWTLQYNLTHDVTSVVRPVLWLLLGPRTLTTGLRQRSGLELQHRPVVLFRELGGTVQNGPGPRKQEPVTLPPSLHLQILSIPGWKYSSNHTVHLKNLQKGHYRRAKADFRRVLLRLHHLYEAGEHQALSRPVTLNLQSVLRGLGSVVAVEERSLTGTWDVNSLHRWSWKTEDGHHHRGSSRRPLPPLRGPNVTIHPKEIRTFFIHFQEQ