Tweet
Hi, I have noticed in HG19, there are sometimes a segment of sequence that are in lower case? Does this have a special meaning?
Thanks
Thanks
-
-
Often, sequence in loweracse is repetative. It's been soft masked so you can distinguish it from unique sequence -
What about those characters masked with "N", I thought those mean repeats too?
BTW how does aligner like BWA take care "N"s, if it sees Ns in the reference does it automatically ignore those segment?Comment
-
-
Can you kindly point out which paper it is please?Comment
-
-
Love this - good data definitely starts from good input, and poor input can only give relatively poor data. I particularly like the mention of Nanodrop/absorbance based methods for quantification. It's such a toss up if you'll get an accurate reading or what amounts to a randomly generated number, and a lot of library/sequencing related issues can be traced back to poor quant.07-01-2026, 11:43 AM
-
I’m not a sequencing expert. I’m a purification scientist who uses NGS to evaluate workflows my group develops. With this perspective, we think about the sample first and the NGS workflow second. The sequencer is an exceptionally honest reporter, but it can only report on what you give it, so whether you get clean, interpretable data from an NGS workflow is largely determined before you begin.
Here are nine questions we think about, in roughly the order they matter, before...
Comment