4334
These include the genes , undefined 1 ( UD1 ) , UD2 , and UD3 , each coding for proteins of unknown function , the ken gene encoding a new Kruppel - like putative transcription factor , the fly homologues of the mammalian mitochondrial trifunctional enzyme ( thiolase ) , and the TAR DNA - binding protein - 43 ( TBPH ) , the first nonvertebrate member of the transmembrane 4 superfamily ( TM4SF ) gene , a new homeodomain gene , and a gene coding for a putative nuclear binding protein ( PNBP ) that is homologous to maleless , and a Copia - like element .
 GENE: undefined 1; GENE: UD1; GENE: UD2; GENE: UD3; GENE: ken gene; GENE: Kruppel - like putative transcription factor; GENE: mammalian mitochondrial trifunctional enzyme; GENE: thiolase; GENE: TAR DNA - binding protein - 43; GENE: TBPH; GENE: transmembrane 4 superfamily; GENE: TM4SF; GENE: homeodomain gene; GENE: maleless; GENE: Copia - like element
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: undefined 1; GENE: UD1; GENE: UD2; GENE: UD3; GENE: ken gene; GENE: Kruppel - like putative transcription factor; GENE: mammalian mitochondrial trifunctional enzyme; GENE: thiolase; GENE: TAR DNA - binding protein - 43; GENE: TBPH; GENE: transmembrane 4 superfamily; GENE: TM4SF; GENE: homeodomain gene; GENE: maleless; GENE: Copia - like element