You have identified a bacterial protein that has retained the starting fMet in its protein sequence. Which of the following is likely true of this protein?
A) It is likely nonfunctional, since bacteria use posttranslational cleavage of fMet to make functional proteins.
B) It will show improper protein sorting and will likely remain in the ER.
C) It will be not be able to be chemically modified, so it will be sent to the Golgi for secretion.
D) It will be a functional bacterial protein, since all functional proteins must begin with fMet.
E) It will likely form a disulfide bond with a second peptide chain, forming a protein complex.
A
You might also like to view...
Sister chromatids are best described as two DNA molecules that have ______________
A. the same genes in the same order but that have different alleles. B. the same alleles of the same genes in a different order. C. different genes in the same order and possibly have different alleles of some genes. D. different alleles of the same genes arranged in a different order. E. virtually identical sequences of nucleotides.
If an individual that phenotypically has dominant traits is mated to another individual that also has dominant traits and the progeny have both dominant and recessive traits it indicates that
A. Both parents are homozygotic B. Both parents are heterozygotic C. No conclusions can be made about the genotypes of the parents D. One parent is heterozygotic and one is homozygotic
Which organelle is a network of membranes involved in the production of proteins?
A) chloroplast B) endoplasmic reticulum C) lysosome D) nucleus
During translation the genetic code is read from mRNA in nucleotide triplets called __________
a. codons b. open reading frame c. mRNA d. anticodons e. unidentified reading frame