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Genome Sequencing - what is the 'identifier'?

What is the 'identifier' of the first read in both files? Here is the code I get. Also, what does this identifier of both reads tell us? enter image description here

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coding sequence identifier
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updated by GenoMax 16K • | written by pollyyhjo 1

Specifically: https://en.wikipedia.org/wiki/FASTQ_format#Illumina_sequence_identifiers

So there is no identifier (as far as a sample ID goes) inside an Illumina file. You would normally have that information in the name of the file. If someone "coded" the names to be generic (like what you have) then you had better have a key/metadata file that links the index sequence you see in header (GGACTCCT+CTCCTTAC) with a sample_ID/file names.

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written by GenoMax 16K

So we cannot tell what identifier from the code above?

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written by pollyyhjo 1

Identifier for? If for sample, then no.

But if you wanted to know what sequencer the sample ran on then you get the serial number NB551191. Flow cell serial number is HM5WHBGX5. Data is from lane 1.

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written by GenoMax 16K

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