February 19

Annotation Day 4: Nubia Genes 53, 54, and 55 [02/15/17 Cori Hughes]

Journal entry by Cori Hughes on the 15th of February, 2017

Goals: annotate at least two of Nubia’s genes (starting at gene 53 and moving downstream)

Tools: HHPred, Starterator, DNAMaster, GeneMark, PhagesDB BLAST, NCBI BLAST

Results for Gene 53:

Start: 38240bp Stop: 38461bp FWD GAP: bp SD Final Value: SD Score: -6.414 (4th best score) Best score not chosen. Best score (-3.714 is much shorter in length and does not cover all the coding potential) Z-Value: 1.433 CP: The gene is covered SCS: Agrees with Glimmer, Agrees with GeneMark NCBI BLAST: hypothetical protein RAP15_52 [Arthrobacter phage RAP15] E-Value: 1e-44 CDD: No good hit PhagesDB BLAST: GreenHearts_Draft_55, function unknown E-Value: 4e-36 HHPred: No good hit LO: Yes ST: Agrees with Starterator F: NKF FS: NCBI, PhagesDB

GeneMark covers 38240bp-38461bp (the middle frame).

HHPred results show no good E-value.

NCBI BLAST show an alignment with hypothetical protein RAP15_52. The query cover is 98% and the E-value is 1e-44.

This is the query:subject from the NCBI BLAST alignment with hypothetical protein RAP15_52.

PhagesDB BLAST shows a significant alignment with Greenhearts_Draft_55 with an E-value of 4e-36.

This is the query:subject of both Nubia_53 and its closest alignment on PhagesDB BLAST, GreenHearts_Draft_55.

Nubia gene 53 matches the suggested start location on Starterator.

These are the start locations of similarly matched genomes to Nubia’s gene 53.

Results for Gene 54: Not completed. Due to need for revision and review, gene 54 will be looked at as soon as possible.

Results for Gene 55:

Start: 39753bp Stop: 39439bp BKWD GAP: 63bp Gap SD Final Value: SD Score: -5.525 (3rd best score) Best score not chosen. Best score (-1.984 is too short and did not cover all coding potential) Z-Value: 1.543 CP: The gene is covered SCS: Disagrees with Glimmer, Agrees with GeneMark We agreed with GeneMark because it is the longest ORF NCBI BLAST: hypothetical protein SEA_OXYNFRIUS_53 [Arthrobacter phage Oxynfrius] E-Value: 2e-55 CDD: No good hit PhagesDB BLAST: Oxynfrius_53, function unknown E-Value: 6e-45 HHPred: No good hit LO: Yes ST: The start location was changed to 39753. The ORF length is the longest but does not have the best SD score or the best Z value. F: NKF FS: NCBI, PhagesDB

HHPred did not show any good hit for Nubia gene 55.

NCBI BLAST shows a hit for hypothetical protein SEA_OCYNFRIUS_53 with an E-value of 2e-55.

These are the query:subject on NCBI BLAST for hit hypothetical protein SEA_OXYNFRIUS_53 and the next-best hit, hypothetical protein JOANN_54.

PhagesDB shows a hit for Oxynfrius_53 with an E-value of 6e-45.

PhagesDB BLAST query:subject for Oxynfrius_53 and the gene being blasted, Nubia_Draft_55.

The suggested start for Nubia_Draft_55 (39696) on Starterator was not chosen. Instead, 39753 was chosen to have the longest ORF length.

Conclusions: Gene 53 and Gene 55 of Nubia were completed. Gene 55 has a different start location than what was suggested on Starterator in order to have the longest ORF. We (Roshni and I) have started annotating backward genes.

Next Step: Annotation Day 5: Nubia Genes 54, 56, 57, and 58 [02/20/17 Cori Hughes]

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Posted February 19, 2017 by Hughes in category BIO 1106-23 Annotation Notebooks, Cori's Notebook, Lab Notebook

About the Author

I am a freshman Pre-Biology major on a Pre-Med track. I've previously worked over the summer of 2016 on C. elegans in Dr. Lee's laboratory (located in the BSB). Another major experience I've taken part in includes PCR analysis of stingray fins in an AP Biology class. I enjoy volunteering in organizations that showcase scientific experiments to children, in order to ignite curiosity.

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