Identification
HMDB Protein ID CDBP00700
Secondary Accession Numbers Not Available
Name DNA-directed RNA polymerase I subunit RPA2
Description Not Available
Synonyms
  1. DNA-directed RNA polymerase I 135 kDa polypeptide
  2. RNA polymerase I subunit 2
  3. RPA135
Gene Name POLR1B
Protein Type Enzyme
Biological Properties
General Function Involved in DNA-directed RNA polymerase activity
Specific Function DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Second largest core component of RNA polymerase I which synthesizes ribosomal RNA precursors. Proposed to contribute to the polymerase catalytic activity and forms the polymerase active center together with the largest subunit. Pol I is composed of mobile elements and RPA2 is part of the core element with the central large cleft and probably a clamp element that moves to open and close the cleft (By similarity).
GO Classification
Biological Process
rRNA transcription
nucleologenesis
embryo implantation
embryo development
termination of RNA polymerase I transcription
transcription elongation from RNA polymerase I promoter
transcription initiation from RNA polymerase I promoter
Cellular Component
DNA-directed RNA polymerase I complex
cytoplasm
nucleolus
nucleoplasm
Component
organelle
membrane-bounded organelle
intracellular membrane-bounded organelle
nucleus
Function
binding
catalytic activity
transferase activity
transferase activity, transferring phosphorus-containing groups
nucleoside binding
nucleotidyltransferase activity
nucleic acid binding
dna binding
rna polymerase activity
dna-directed rna polymerase activity
ribonucleoside binding
Molecular Function
ribonucleoside binding
metal ion binding
DNA-directed RNA polymerase activity
DNA binding
Process
macromolecule biosynthetic process
cellular macromolecule biosynthetic process
metabolic process
biosynthetic process
transcription
Cellular Location
  1. Nucleus
  2. nucleolus
Pathways
Gene Properties
Chromosome Location 2
Locus 2q13
SNPs POLR1B
Gene Sequence
>3408 bp
ATGGATCCTGGCAGCCGGTGGCGGAACCTGCCCAGCGGGCCTAGCCTAAAGCACTTGACT
GACCCCTCTTATGGAATCCCGCGGGAACAGCAAAAGGCAGCGTTGCAGGAGCTGACGCGG
GCGCACGTGGAGTCCTTCAACTACGCTGTGCACGAGGGTCTCGGCCTCGCGGTGCAGGCT
ATACCTCCCTTTGAATTTGCTTTCAAAGATGAGCGTATCTCTTTTACTATTCTGGATGCT
GTTATCAGTCCACCTACAGTTCCAAAAGGGACCATCTGCAAAGAGGCCAATGTTTATCCA
GCAGAATGCCGGGGCCGAAGGAGTACCTACCGTGGGAAGTTGACAGCTGATATCAACTGG
GCAGTGAATGGAATCTCAAAAGGAATCATTAAGCAGTTTCTTGGCTATGTTCCCATCATG
GTGAAATCCAAGCTTTGCAACTTACGTAACCTTCCCCCACAAGCCCTCATTGAGCACCAT
GAGGAGGCAGAGGAAATGGGGGGCTATTTTATAATCAATGGCATTGAAAAAGTCATCCGA
ATGTTGATTATGCCTCGGAGAAATTTTCCCATTGCAATGATAAGACCAAAATGGAAAACC
AGAGGGCCTGGTTATACTCAGTATGGAGTTTCAATGCACTGTGTGAGGGAAGAACATTCC
GCTGTCAATATGAACCTCCACTACTTGGAAAATGGCACTGTTATGTTGAACTTTATTTAC
CGAAAAGAACTGTTCTTTCTTCCTTTGGGATTTGCACTTAAGGCACTTGTCAGCTTTTCT
GATTATCAGATCTTTCAGGAGCTCATCAAAGGAAAAGAGGATGATTCTTTCCTTAGGAAC
TCTGTTTCTCAGATGTTAAGGATTGTAATGGAAGAGGGTTGTTCGACACAAAAACAGGTC
CTTAACTACCTAGGTGAATGCTTCAGAGTAAAACTCAATGTTCCTGACTGGTACCCAAAT
GAGCAAGCTGCGGAGTTCCTGTTTAACCAGTGCATCTGTATCCACTTGAAATCCAATACT
GAAAAGTTTTATATGCTTTGTCTCATGACGCGAAAGCTCTTTGCTTTAGCCAAAGGAGAG
TGCATGGAGGACAATCCTGATAGTTTGGTGAACCAGGAAGTCCTCACACCGGGTCAGCTC
TTCCTTATGTTCCTGAAGGAAAAACTGGAAGGTTGGTTAGTGTCTATTAAAATAGCTTTT
GATAAGAAGGCTCAGAAGACCAGTGTTTCCATGAACACTGACAATTTGATGAGGATTTTT
ACAATGGGCATAGACCTTACAAAACCATTTGAATACCTTTTTGCTACTGGGAATCTGCGT
TCTAAAACAGGTCTTGGCCTCCTACAAGATTCTGGACTTTGTGTTGTGGCTGACAAGCTG
AACTTCATACGCTACCTCTCCCATTTCCGCTGCGTGCACAGAGGGGCTGATTTTGCCAAG
ATGAGGACCACCACAGTACGCAGGCTGCTGCCAGAGTCCTGGGGCTTCCTTTGTCCCGTG
CATACCCCAGACGGGGAGCCCTGTGGCCTGATGAACCACCTAACTGCCGTATGTGAGGTT
GTCACACAGTTTGTGTATACGGCATCTATTCCAGCTTTACTGTGCAACTTGGGGGTCACT
CCCATTGATGGAGCTCCCCACCGATCATACAGTGAGTGCTACCCTGTCCTGCTGGACGGT
GTCATGGTTGGCTGGGTGGATAAGGATCTTGCTCCAGGCATCGCAGATTCTCTTCGTCAT
TTTAAGGTGTTGAGAGAGAAAAGAATTCCTCCCTGGATGGAAGTGGTCCTTATACCCATG
ACAGGAAAACCAAGTCTGTACCCAGGATTGTTCCTTTTTACCACTCCTTGTAGACTGGTA
CGGCCTGTGCAGAACTTAGCATTGGGCAAAGAAGAGCTAATTGGAACTATGGAACAGATC
TTCATGAATGTCGCTATCTTTGAGGATGAAGTTTTTGCTGGAGTTACCACACACCAGGAA
CTCTTTCCACACAGCCTGCTGAGTGTGATTGCCAACTTCATCCCTTTCTCTGATCACAAC
CAGAGTCCACGGAACATGTACCAATGCCAGATGGGTAAGCAAACTATGGGCTTTCCACTT
CTCACTTATCAAGACCGATCGGATAACAAACTGTATCGTCTTCAGACTCCTCAGAGTCCC
TTGGTGAGACCCTCCATGTATGATTATTATGACATGGATAACTATCCAATTGGGACCAAT
GCCATCGTTGCTGTGATTTCTTACACTGGCTATGATATGGAAGATGCCATGATTGTGAAT
AAGGCCTCTTGGGAACGAGGCTTTGCCCATGGAAGTGTCTACAAGTCTGAGTTCATAGAC
CTCTCTGAAAAAATTAAACAAGGAGATAGTAGCCTGGTGTTTGGCATCAAACCTGGTGAC
CCACGCGTTCTGCAGAAGTTAGATGACGATGGATTGCCGTTTATAGGAGCAAAACTGCAG
TACGGAGATCCGTATTACAGCTACCTCAACCTCAACACCGGGGAAAGTTTTGTGATGTAC
TATAAGAGTAAAGAAAATTGTGTTGTGGATAACATCAAAGTGTGCAGTAATGACACTGGG
AGTGGAAAATTCAAGTGTGTTTGCATCACTATGAGAGTGCCTCGGAACCCAACTATCGGA
GATAAATTTGCCAGTCGCCATGGGCAGAAGGGCATTTTAAGCAGATTGTGGCCGGCTGAG
GACATGCCTTTTACTGAGAGTGGGATGGTCCCAGACATTCTGTTCAATCCCCATGGTTTT
CCATCCCGCATGACCATTGGGATGTTAATTGAGAGTATGGCCGGGAAGTCTGCAGCTTTG
CATGGTCTCTGCCATGATGCTACACCCTTCATCTTCTCAGAGGAGAACTCGGCCTTAGAA
TACTTTGGTGAGATGTTAAAGGCTGCTGGCTACAATTTCTATGGCACCGAGAGGTTATAT
AGTGGCATCAGTGGGCTAGAACTGGAAGCAGACATCTTCATAGGAGTGGTTTATTATCAG
CGCTTACGCCATATGGTCTCAGACAAATTTCAAGTAAGGACAACTGGAGCCCGAGACAGA
GTCACCAACCAGCCTATTGGGGGAAGAAATGTCCAGGGTGGAATCCGTTTTGGGGAGATG
GAACGGGATGCGCTTTTAGCTCATGGTACATCTTTTCTCCTTCATGACCGCCTCTTCAAC
TGCTCAGATCGGTCGGTAGCCCATGTGTGTGTGAAGTGTGGCAGTTTACTCTCTCCACTG
TTGGAGAAGCCACCCCCTTCTTGGTCTGCCATGCGCAACAGAAAATACAACTGTACTCTG
TGTAGTCGCAGTGACACTATCGATACTGTTTCTGTGCCTTATGTTTTTCGGTATTTTGTA
GCTGAACTGGCAGCTATGAACATCAAAGTGAAACTGGATGTTGTTTAA
Protein Properties
Number of Residues 1135
Molecular Weight 121987.24
Theoretical pI 7.629
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>DNA-directed RNA polymerase I subunit RPA2
MDPGSRWRNLPSGPSLKHLTDPSYGIPREQQKAALQELTRAHVESFNYAVHEGLGLAVQA
IPPFEFAFKDERISFTILDAVISPPTVPKGTICKEANVYPAECRGRRSTYRGKLTADINW
AVNGISKGIIKQFLGYVPIMVKSKLCNLRNLPPQALIEHHEEAEEMGGYFIINGIEKVIR
MLIMPRRNFPIAMIRPKWKTRGPGYTQYGVSMHCVREEHSAVNMNLHYLENGTVMLNFIY
RKELFFLPLGFALKALVSFSDYQIFQELIKGKEDDSFLRNSVSQMLRIVMEEGCSTQKQV
LNYLGECFRVKLNVPDWYPNEQAAEFLFNQCICIHLKSNTEKFYMLCLMTRKLFALAKGE
CMEDNPDSLVNQEVLTPGQLFLMFLKEKLEGWLVSIKIAFDKKAQKTSVSMNTDNLMRIF
TMGIDLTKPFEYLFATGNLRSKTGLGLLQDSGLCVVADKLNFIRYLSHFRCVHRGADFAK
MRTTTVRRLLPESWGFLCPVHTPDGEPCGLMNHLTAVCEVVTQFVYTASIPALLCNLGVT
PIDGAPHRSYSECYPVLLDGVMVGWVDKDLAPGIADSLRHFKVLREKRIPPWMEVVLIPM
TGKPSLYPGLFLFTTPCRLVRPVQNLALGKEELIGTMEQIFMNVAIFEDEVFAGVTTHQE
LFPHSLLSVIANFIPFSDHNQSPRNMYQCQMGKQTMGFPLLTYQDRSDNKLYRLQTPQSP
LVRPSMYDYYDMDNYPIGTNAIVAVISYTGYDMEDAMIVNKASWERGFAHGSVYKSEFID
LSEKIKQGDSSLVFGIKPGDPRVLQKLDDDGLPFIGAKLQYGDPYYSYLNLNTGESFVMY
YKSKENCVVDNIKVCSNDTGSGKFKCVCITMRVPRNPTIGDKFASRHGQKGILSRLWPAE
DMPFTESGMVPDILFNPHGFPSRMTIGMLIESMAGKSAALHGLCHDATPFIFSEENSALE
YFGEMLKAAGYNFYGTERLYSGISGLELEADIFIGVVYYQRLRHMVSDKFQVRTTGARDR
VTNQPIGGRNVQGGIRFGEMERDALLAHGTSFLLHDRLFNCSDRSVAHVCVKCGSLLSPL
LEKPPPSWSAMRNRKYNCTLCSRSDTIDTVSVPYVFRYFVAELAAMNIKVKLDVV
GenBank ID Protein 62420281
UniProtKB/Swiss-Prot ID Q9H9Y6
UniProtKB/Swiss-Prot Entry Name RPA2_HUMAN
PDB IDs Not Available
GenBank Gene ID AC012442
GeneCard ID POLR1B
GenAtlas ID POLR1B
HGNC ID HGNC:20454
References
General References Not Available