Gene Details:

• MSU gene ID: LOC_Os04g44870
• RAPdb gene ID: Os04g0531100
• Gene Symbol: Rpp16 OsPBP1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• OsPBP1 is a single copy gene and preferentially expressed in pistil and pollen but down-regulated by pollination.
• Pollen grains of antisense OsPBP1 transgenic lines were largely nonviable, germinated poorly in vitro and of low fertility.
• OsPBP1 protein was localized in a region peripheral to pollen wall and vesicles of elongating pollen tube, and its repressed expression reduced substantially this association and led to alteration of microfilament polymerization during pollen germination.
• Taken together, these results indicate that OsPBP1 is a novel functional C2-domain phospholipids-binding protein that is required for pollen fertility likely by regulating Ca(2+) and phospholipid signaling pathways.
• A novel C2-domain phospholipid-binding protein, OsPBP1, is required for pollen fertility in rice.

Function-related keywords:

• pollen ,  grain ,  fertility

Literature:

• Rice OsERG3 encodes an unusual small C2-domain protein containing a Ca(2+)-binding module but lacking phospholipid-binding properties .  DOI:  10.1016/j.bbagen.2011.06.021 ;  PMID:  21756975
• Rpp16 and Rpp17, from a common origin, have different protein characteristics but both genes are predominantly expressed in rice phloem tissues .  DOI:  10.1093/pcp/pcf083 ;  PMID:  12091721
• A novel C2-domain phospholipid-binding protein, OsPBP1, is required for pollen fertility in rice .  DOI:  10.1093/mp/ssn035 ;  PMID:  19825580

Related News:

Gene Resources:

• NCBI ID: AB060729  , CR282412
• UniProt accessions:

Sequences: