Protein Info for Rv1981c in Mycobacterium tuberculosis H37Rv

Annotation: Ribonucleoside-diphosphate reductase (beta chain) NrdF1 (ribonucleotide reductase small subunit) (R2F protein)

These analyses and tools can help you predict a protein's function, but be skeptical. For enzymes, over 10% of annotations from KEGG or SEED are probably incorrect. For other types of proteins, the error rates may be much higher. MetaCyc and Swiss-Prot have low error rates, but the best hits in these databases are often quite distant, so this protein's function may not be the same. TIGRFam has low error rates. Finally, many experimentally-characterized proteins are not in any of these databases. To find relevant papers, use PaperBLAST.

Protein Families and Features

• TIGR04171: ribonucleoside-diphosphate reductase, class 1b, beta subunit
  • amino acids 10 to 322 (313 residues), 458 bits, E=8.2e-142
• PF00268: Ribonuc_red_sm
  • amino acids 12 to 283 (272 residues), 297.5 bits, E=5.2e-93

Best Hits

Swiss-Prot: 100% identical to RIR2A_MYCTU: Ribonucleoside-diphosphate reductase subunit beta nrdF1 (nrdF1) from Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)

KEGG orthology group: K00526, ribonucleoside-diphosphate reductase beta chain [EC: 1.17.4.1] (inferred from 100% identity to mbo:Mb2003c)

MetaCyc: 65% identical to ribonucleoside-diphosphate reductase 2 subunit beta (Escherichia coli K-12 substr. MG1655)

Predicted SEED Role

"Ribonucleotide reductase of class Ib (aerobic), beta subunit (EC 1.17.4.1)" in subsystem Ribonucleotide reduction (EC 1.17.4.1)

MetaCyc Pathways

• superpathway of histidine, purine, and pyrimidine biosynthesis (43/46 steps found)
• superpathway of purine nucleotides de novo biosynthesis I (21/21 steps found)
• superpathway of purine nucleotides de novo biosynthesis II (24/26 steps found)
• superpathway of pyrimidine deoxyribonucleotides de novo biosynthesis (17/18 steps found)
• superpathway of purine nucleotide salvage (14/14 steps found)
• pyrimidine deoxyribonucleotides de novo biosynthesis I (9/9 steps found)
• pyrimidine deoxyribonucleotides de novo biosynthesis III (9/9 steps found)
• pyrimidine deoxyribonucleotides de novo biosynthesis IV (7/7 steps found)
• superpathway of pyrimidine deoxyribonucleotides de novo biosynthesis (E. coli) (12/14 steps found)
• superpathway of guanosine nucleotides de novo biosynthesis I (6/6 steps found)
• superpathway of adenosine nucleotides de novo biosynthesis I (5/5 steps found)
• superpathway of guanosine nucleotides de novo biosynthesis II (7/8 steps found)
• superpathway of adenosine nucleotides de novo biosynthesis II (6/7 steps found)
• adenosine deoxyribonucleotides de novo biosynthesis I (2/2 steps found)
• guanosine deoxyribonucleotides de novo biosynthesis I (2/2 steps found)
• pyrimidine deoxyribonucleotides biosynthesis from CTP (6/8 steps found)
• adenosine deoxyribonucleotides de novo biosynthesis II (3/4 steps found)
• guanosine deoxyribonucleotides de novo biosynthesis II (3/4 steps found)

KEGG Metabolic Maps

• Glutathione metabolism
• Purine metabolism
• Pyrimidine metabolism

Isozymes

Compare fitness of predicted isozymes for: 1.17.4.1

Use Curated BLAST to search for 1.17.4.1

Protein Sequence (322 amino acids)

>Rv1981c Ribonucleoside-diphosphate reductase (beta chain) NrdF1 (ribonucleotide reductase small subunit) (R2F protein) (Mycobacterium tuberculosis H37Rv)
MTGKLVERVHAINWNRLLDAKDLQVWERLTGNFWLPEKIPLSNDLASWQTLSSTEQQTTI
RVFTGLTLLDTAQATVGAVAMIDDAVTPHEEAVLTNMAFMESVHAKSYSSIFSTLCSTKQ
IDDAFDWSEQNPYLQRKAQIIVDYYRGDDALKRKASSVMLESFLFYSGFYLPMYWSSRGK
LTNTADLIRLIIRDEAVHGYYIGYKCQRGLADLTDAERADHREYTCELLHTLYANEIDYA
HDLYDELGWTDDVLPYMRYNANKALANLGYQPAFDRDTCQVNPAVRAALDPGAGENHDFF
SGSGSSYVMGTHQPTTDTDWDF