Phage Hunters Spring 2017
My Annotations
| Status | Page | Date/Time | GO Term (Aspect) | Reference | Evidence | Notes | Links |
|---|
| flagged | 9CAUD:A8D3R5 | 2017-04-11 02:34:08 CDT | GO:0008233 peptidase activity (F) | PMID:28357414 | ECO:0000247 sequence alignment evidence used in manual assertion | figure S2 shows that SAP-2_gp10 is a homologue of Andhra_gp10(confirmed by a BLASTP of Andhra_gp10).
Figure 2 shows that the wildtype Andhra_gp10 is a peptidase with a CHAP(cysteine, histidine-dependent amidohydrolases/peptidases) domain and mutations of the cysteine(C354A) and histidine (H420A) in the CHAP domain abrogate the peptidase activity of Andhra_gp10. Currently there is no UNIPROT ID for Andhra_gp10.
Hence, its Genbank Accession Number(AQT27832) has been included in the with/from field.
| challenge |
| BPKVM:Q6WHZ2 | 2017-04-11 03:07:35 CDT | GO:0000309 nicotinamide-nucleotide adenylyltransferase activity (F) | PMID:28167526 | ECO:0000314 direct assay evidence used in manual assertion | Figure 7 shows substrate specificity of NatV Nudix hydrolase as measured by Pi released from the respective substrate. At 37 degree centigrade, the preferred substrate are ADP-ribose, NAD+ and NADH with little differences in activity between them.
The stoichiometry of Pi from all of these Nudix hydrolase reactions is 1:1, most yielding an AMP. In reactions where AMP could be directly measured using mass spectrophotometer, ADP-ribose was also preferred substrate, with NAD+, NADH, with FAD showing reactivity but not at a lower rate
| challenge |
| flagged | BPKVM:Q6WHP0 | 2017-04-11 03:22:01 CDT | GO:0009435 NAD biosynthetic process (P) | PMID:28167526 | ECO:0000314 direct assay evidence used in manual assertion | Figure 3 and 5show ATP activity and complementation of Samonella Typhimurium pyridine nucleotide auxotroph by the nadV+clone (pZL405nadV+)
Figure 7 (explanation from the manuscript).
Figure Title: Substrate specificity of the KVP40 NatV Nudix pyrophosphatase.
A) Activity was measured in the phosphate release assay using 1.5 mM of substrate and
50 pmole NatV-His6 present in reactions incubated at 37°C. Values shown are averages
from two assays. Stoichiometry of phosphate per substrate is 1:1.
B) Mass spectrometry analysis of KVP40 NatV 754
Nudix hydrolase substrate specificity. Specific activity was obtained with 1.5 mM substrate
and 1 μg NatV, incubated at 37°C. Values are averages from duplicate assays
(triplicate for ADP-ribose). The specific activity on ADP-ribose was 0.6 μmole AMP sec^-1
µg^-1 NatV-His6.
| challenge |
| 9CAUD:B7T0K1 | 2017-04-22 19:27:45 CDT | GO:0003796 lysozyme activity (F) | PMID:22729533 | ECO:0000314 direct assay evidence used in manual assertion | FIGURE 1 shows that the lysozyme-like domain (TG1) of Tape Measure Protein (TMP) of Staphylococcus aureus bacteriophage vB_SauS-phiIPLA35 has peptidoglycan muramidase activity and is most likely a muramidase that can digest MurNAc-GlcNAc linkages.
The lytic activity TG1 protein against S. aureus is shown in Figure 2.
| challenge |
| BPMR1:A7VMY9 | 2017-04-22 19:37:20 CDT | GO:0003796 lysozyme activity (F) | PMID:18462391 | ECO:0000314 direct assay evidence used in manual assertion | Figure 2 and Table 1 show that gp61 has lytic activity against S. aureus.
It also demostrates that this activity is localized to two domains (amino acids 1-150 and 401-624) of the polypeptide. Figure 4 shows that gp61 is located at the tail tip.
| challenge |
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unacceptable:0
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flagged:2
Annotations challenged by Tosin
| Status | Author,Group | Page | GO Term (Aspect) | Reference | Evidence | Links | Page history |
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