Lab #4 BLAST by Morgan Howell
1). The protein I searched for was rhodopsin which is a protein found in the rods of the eye. Rods are a photoreceptor in the eye and they are what help you see in low amounts of light. Rhodopsin is the protein that, along with a molecule called 11-cis retinal, turns light into electrical signals that goes to the brain and the brain processes it as vision. I chose this protein because I think eyes are fascinating and I want to be an optometrist someday.
2). The specific protein I selected was rhodopsin [Homo sapiens].
3). The amino acid sequence is:
1 mngtegpnfy vpfsnatgvv rspfeypqyy laepwqfsml aaymfllivl gfpinfltly
61 vtvqhkklrt plnyillnla vadlfmvlgg ftstlytslh gyfvfgptgc nlegffatlg
121 geialwslvv laieryvvvc kpmsnfrfge nhaimgvaft wvmalacaap plagwsryip
181 eglqcscgid yytlkpevnn esfviymfvv hftipmiiif fcygqlvftv keaaaqqqes
241 attqkaekev trmviimvia flicwvpyas vafyifthqg snfgpifmti paffaksaai
301 ynpviyimmn kqfrncmltt iccgknplgd deasatvskt etsqvapa
61 vtvqhkklrt plnyillnla vadlfmvlgg ftstlytslh gyfvfgptgc nlegffatlg
121 geialwslvv laieryvvvc kpmsnfrfge nhaimgvaft wvmalacaap plagwsryip
181 eglqcscgid yytlkpevnn esfviymfvv hftipmiiif fcygqlvftv keaaaqqqes
241 attqkaekev trmviimvia flicwvpyas vafyifthqg snfgpifmti paffaksaai
301 ynpviyimmn kqfrncmltt iccgknplgd deasatvskt etsqvapa
The first ten amino acids are:
Met-Asn-Gly-Thr-Glu-Gly-Pro-Asn-Phe-Tyr
Or
Methionine-Asparagine-Glycine-Threonine-Glutamic Acid-Glycine-Proline-Asparagine-Phenylalanine-Tyrosine
4). The first reference:
Xiong, S, et al. “Rhodopsin T17M Mutant Inhibits Complement C3 Secretion in Retinal Pigment Epithelium via ROS Induced Downregulation of TWIST1.” Journal of Cellular Biochemistry., U.S. National Library of Medicine, Dec. 2017, www.ncbi.nlm.nih.gov/pubmed/28569420.
5). The first 15 lines of the nucleotide sequence:
1 agagtcatcc agctggagcc ctgagtggct gagctcaggc cttcgcagca ttcttgggtg
61 ggagcagcca cgggtcagcc acaagggcca cagccatgaa tggcacagaa ggccctaact
121 tctacgtgcc cttctccaat gcgacgggtg tggtacgcag ccccttcgag tacccacagt
181 actacctggc tgagccatgg cagttctcca tgctggccgc ctacatgttt ctgctgatcg
241 tgctgggctt ccccatcaac ttcctcacgc tctacgtcac cgtccagcac aagaagctgc
301 gcacgcctct caactacatc ctgctcaacc tagccgtggc tgacctcttc atggtcctag
361 gtggcttcac cagcaccctc tacacctctc tgcatggata cttcgtcttc gggcccacag
421 gatgcaattt ggagggcttc tttgccaccc tgggcggtga aattgccctg tggtccttgg
481 tggtcctggc catcgagcgg tacgtggtgg tgtgtaagcc catgagcaac ttccgcttcg
541 gggagaacca tgccatcatg ggcgttgcct tcacctgggt catggcgctg gcctgcgccg
601 cacccccact cgccggctgg tccaggtaca tccccgaggg cctgcagtgc tcgtgtggaa
661 tcgactacta cacgctcaag ccggaggtca acaacgagtc ttttgtcatc tacatgttcg
721 tggtccactt caccatcccc atgattatca tctttttctg ctatgggcag ctcgtcttca
781 ccgtcaagga ggccgctgcc cagcagcagg agtcagccac cacacagaag gcagagaagg
841 aggtcacccg catggtcatc atcatggtca tcgctttcct gatctgctgg gtgccctacg
61 ggagcagcca cgggtcagcc acaagggcca cagccatgaa tggcacagaa ggccctaact
121 tctacgtgcc cttctccaat gcgacgggtg tggtacgcag ccccttcgag tacccacagt
181 actacctggc tgagccatgg cagttctcca tgctggccgc ctacatgttt ctgctgatcg
241 tgctgggctt ccccatcaac ttcctcacgc tctacgtcac cgtccagcac aagaagctgc
301 gcacgcctct caactacatc ctgctcaacc tagccgtggc tgacctcttc atggtcctag
361 gtggcttcac cagcaccctc tacacctctc tgcatggata cttcgtcttc gggcccacag
421 gatgcaattt ggagggcttc tttgccaccc tgggcggtga aattgccctg tggtccttgg
481 tggtcctggc catcgagcgg tacgtggtgg tgtgtaagcc catgagcaac ttccgcttcg
541 gggagaacca tgccatcatg ggcgttgcct tcacctgggt catggcgctg gcctgcgccg
601 cacccccact cgccggctgg tccaggtaca tccccgaggg cctgcagtgc tcgtgtggaa
661 tcgactacta cacgctcaag ccggaggtca acaacgagtc ttttgtcatc tacatgttcg
721 tggtccactt caccatcccc atgattatca tctttttctg ctatgggcag ctcgtcttca
781 ccgtcaagga ggccgctgcc cagcagcagg agtcagccac cacacagaag gcagagaagg
841 aggtcacccg catggtcatc atcatggtca tcgctttcct gatctgctgg gtgccctacg
I'm wondering if it's problems with Rhodospin that cause some of the eye problems we have today? Are there procedures that can "fix" problems with Rhodospin and take away some of the problems we have? Or would we just call it night blindness and just have to live with it? And is there a relationship between time spent staring at screens (like phones and laptops) and the effectiveness of the protein? I know very little about optometry but I think it's awesome that that's your field of interest :)
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