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- FUNCTION: Displays RNA-directed RNA polymerase, mRNA guanylyl transferase, mRNA (guanine-N(7)-)-methyltransferase and poly(A) synthetase activities. The viral mRNA guanylyl transferase displays a different biochemical reaction than the cellular enzyme. The template is composed of the viral RNA tightly encapsidated by the nucleoprotein (N). Functions either as transcriptase or as replicase. The transcriptase synthesizes subsequently the subgenomic RNAs, assuring their capping and polyadenylation by a stuttering mechanism. The replicase mode is dependent on intracellular N protein concentration. In this mode, the polymerase replicates the whole viral genome without recognizing the transcriptional signals (By similarity).
- CATALYTIC ACTIVITY: Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1).
- CATALYTIC ACTIVITY: S-adenosyl-L-methionine + G(5')pppR-RNA = S-adenosyl-L-homocysteine + m7G(5')pppR-RNA.
- SUBUNIT: Interacts with the P protein (By similarity).
- SUBCELLULAR LOCATION: Virion (Potential). Cytoplasm (By similarity).
- SIMILARITY: Belongs to the paramyxoviruses L protein family.
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Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms.
Distributed under the Creative Commons Attribution-NoDerivs License.
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| Length: 81 AA [This is the length of the partial sequence of the unprocessed precursor] |
Molecular weight: 9182 Da [This is the MW of the partial sequence of the unprocessed precursor] |
CRC64: 8A7F5588BF6DBB06 [This is a checksum on the sequence] |
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10 20 30 40 50 60
MDPIINGNSA NVYLTDSYLK GVISFSECNA LGSYIFNGPY LKNDYTNLIS RQNPLIEHMN
70 80
LKKLNITQSL ISKYHKGEIK L
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P20894 in FASTA format |
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