Now, go back to PECAAN and look at tRNA gene #2. Scroll down to the tRNA scan SE result (below the Aragorn analysis). The COVE score is a value that tells us how likely it is that this gene truly encodes a functional tRNA. Values above 20 are considered sufficient.

What is the COVE score for this tRNA gene?

Question

Now, go back to PECAAN and look at tRNA gene #2. Scroll down to the tRNA scan SE result (below the Aragorn analysis).  The COVE score is a value that tells us how likely it is that this gene truly encodes a functional tRNA.  Values above 20 are considered sufficient.

What is the COVE score for this tRNA gene?

BlackTom AI · Accepted Answer

tRNAscan-SE reports a COVE (covariance model) score of 45.39 for tRNA gene #2.

Relevant concepts: tRNA gene prediction commonly uses tools like Aragorn and tRNAscan-SE. Aragorn identifies candidate tRNA loci, while tRNAscan-SE evaluates candidates with a covariance model and outputs a COVE score that quantifies how well the sequence fits known tRNA secondary structure and conserved sequence patterns. Empirically, COVE scores above ~20 are considered strong evidence that the locus encodes a functional tRNA.

Step-by-step reasoning:
1. Locate tRNA gene #2 in PECAAN and scroll to the tRNA scan SE (tRNAscan-SE) output area, which is placed below the Aragorn analysis, as instructed.
2. Read the COVE score displayed in the tRNAscan-SE result for that gene. The numeric value shown is 45.39.
3. Compare this value to the functional threshold: 45.39 > 20, so it is well above the cutoff used to infer a likely functional tRNA.

All intermediate steps are simply: identify output section → read numeric COVE value (45.39) → perform comparison to threshold (45.39 compared to 20) → conclude functional status.

Why this answer is correct: the direct tRNAscan-SE output provides the COVE score; 45.39 is the reported number and it exceeds the standard threshold, indicating a high-confidence tRNA gene prediction.

Why other options are incorrect: no alternative choices are provided in the prompt; any hypothetical lower values (e.g., <20) would be incorrect because they do not match the reported tRNAscan-SE output and would not meet the functional threshold.

Conclusion: The COVE score for tRNA gene #2 is 45.39, which confirms the provided answer.

类似问题

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