Protein
Protein HAPLESS 2-B
Organism
Oryza sativa subsp. japonica
Function
Required for male fertility. Plays a role in pollen tube guidance and successful gamete attachment. Essential for the fusion of gametes during double fertilization, where one male gamete fuses with the egg to produce a zygote, and another male gamete fuses with the central cell to produce the endosperm. Mediates the fusion of cell membranes. Not required for pollen tube outgrowth.
Similarity
Belongs to the HAP2/GCS1 family.
Sequence
MAPRRRRRAARSSRPLLLALLAAAVNNFAPAGGVEVLAKSRLESCARGGSDDGRDRLTCDSKIVVDLAVPSGSASLVARVAEVEENGTEAGEMPIRDPLIITINKSEVYALYDLTYLRDVAYKPEEKFVKTRKCEPEAGANVVKSCERLRDEKGSIIEHTEPVCCPCGPHRRVPSSCGNILDKVAKGKANTAHCLRFPDDWFHVFDIGRRSLWFSIRVQVKKGSSESEVIVGPENRTVVSEDSSLRVNLVGDFAGYTSLPSLENFYLVTPRKGVGGGQLEVLGDDFSRWMLLERVLFTLDGLECNKIGVGYEAFRSQPNFCSSPLDSCLGDQLSKFWEIDKNRVNNSQPPQYVVLGKFERINQYPNAGVHTFSVGIPEVLNTNLMIELSADDIEYVYQRSSGKIISINISSFEALSQVGSARVKTKNIGRLEASYSLTFDCLSGINPVEEQYFIMKPDEKLIRTFDLRSSTDQASNYTCQAILKASDFSELDRKESQFSTTATVLNNGTQIGSSENHTKGGIWGFFEAIKAWCAKMWHMLINFFTGTTCSTRCWSFLKFVIHGLLLVAVLWLLHRKGLFDPLYYWWDGVVGSEAQERARRRHKRAHSHRHSHHHDAHKRHKTELAGHRRHHVLHIHDDDDPVAAAAAAEHVILRRHGRHEAALGVQHRDGLKLNKHRRHGGKAVALLPPGEIIVRDGGGCGGVEHGDRRHHAWH