Gene Details:

• Gene ID: Zm00001eb221050
• Gene Symbol: Smk11
• Gene Name: small kernel11
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• Disruption of Smk11 severely affected the assembly and activity of mitochondrial complex IV, leading to delayed plant growth and seed development.
• Protein interactions studies revealed that Smk11 might interact with four putative complex IV assembly factors, Inner membrane peptidase 1A (ZmIMP1A), MYB domain protein 3R3 (ZmMYB3R-3), cytochrome c oxidase 23 (ZmCOX23), and mitochondrial ferredoxin 1 (ZmMFDX1), among which ZmMFDX1 might interact with subunits ZmCOX6a and ZmCOX-X1; ZmMYB3R-3 might also interact with ZmCOX6a.
• Smk11 encodes a mitochondria-localized tetratricopeptide repeat protein. Disruption of Smk11 severely affected the assembly and activity of mitochondrial complex IV, leading to delayed plant growth and seed development.
• Smk11 serves as an accessory assembly factor required for the normal assembly of subunits into complex IV, which will accelerate the elucidation of the assembly of complex IV in plant mitochondria.
• Smk11 is constitutively expressed and encodes a mitochondrial-localized TPR domain-containing protein.

Function-related keywords:

• growth ,  development ,  plant-development ,  seed ,  mitochondria ,  plant-growth ,  seed-development ,  seed-growth

Literature:

• Tetratricopeptide-containing SMALL KERNEL 11 is essential for the assembly of cytochrome c oxidase in maize mitochondria.   DOI:  10.1093/plphys/kiad062 ;  PMID:  36722259

Related News:

• Plant Physiol | 中国农科院作科所刘允军课题组揭示玉米SMK11参与线粒体复合物IV组装的分子机制

Gene Resources:

• NCBI ID: 100192003
• UniProt accessions: A0A804PAE5

Sequences:

Source: Genetic information comes from the article