Specification
| Description | Recombinant protein from the full-length sequence of Homo sapiens DNA helicase B (HELB), transcript variant 1 (NM_033647). |
| Organism | Homo sapiens (Human) |
| Expression Host | Human Cells |
| Tag Info | His or DYKDDDDK. Please contact us if you need further information or require specific designed tag. |
| Purity | Greater than 90% by SDS-PAGE gel |
| Uniprot ID | Q8NG08 |
| Entry Name | HELB_HUMAN |
| Gene Names | HELB |
| Alternative Gene Names | |
| Alternative Protein Names | DNA helicase B (hDHB) (EC 3.6.4.12) |
| Application | Antigens, Western, ELISA and other in vitro binding or in vivo functional assays, and protein-protein interaction studies; For research & development use only! |
| Buffer | Purified protein formulated in a sterile solution of PBS buffer, pH7.2, without any preservatives |
| Endotoxin | Endotoxin level is < 0.1 ng/µg of protein (<1EU /µg) |
| Length | 1087 |
| Molecular Weight(Da) | 123252 |
| Protein Sequence | (The sequence of expressed protein may have some variation from the sequence shown below. Please contact us for the exact sequence.) MARSSPYLRQLQGPLLPPRDLVEEDDDYLNDDVEEDEESVFIDAEELCSGGVKAGSLPGCLRVSICDENTQETCKVFGRFPITGAWWRVKVQVKPVVGSRSYQYQVQGFPSYFLQSDMSPPNQKHICALFLKECEVSSDDVNKFLTWVKEVSNYKNLNFENLRETLRTFHKETGRKDQKQPTQNGQEELFLDNEMSLPLENTIPFRNVMTALQFPKIMEFLPVLLPRHFKWIIGSGSKEMLKEIEEILGTHPWKLGFSKITYREWKLLRCEASWIAFCQCESLLQLMTDLEKNALIMYSRLKQICREDGHTYVEVNDLTLTLSNHMSFHAASESLKFLKDIGVVTYEKSCVFPYDLYHAERAIAFSICDLMKKPPWHLCVDVEKVLASIHTTKPENSSDDALNESKPDEVRLENPVDVVDTQDNGDHIWTNGENEINAEISEVQLDQDQVEVPLDRDQVAALEMICSNPVTVISGKGGCGKTTIVSRLFKHIEQLEEREVKKACEDFEQDQNASEEWITFTEQSQLEADKAIEVLLTAPTGKAAGLLRQKTGLHAYTLCQVNYSFYSWTQTMMTTNKPWKFSSVRVLVVDEGSLVSVGIFKSVLNLLCEHSKLSKLIILGDIRQLPSIEPGNLLKDLFETLKSRNCAIELKTNHRAESQLIVDNATRISRRQFPKFDAELNISDNPTLPISIQDKTFIFVRLPEEDASSQSSKTNHHSCLYSAVKTLLQENNLQNAKTSQFIAFRRQDCDLINDCCCKHYTGHLTKDHQSRLVFGIGDKICCTRNAYLSDLLPENISGSQQNNDLDASSEDFSGTLPDFAKNKRDFESNVRLCNGEIFFITNDVTDVTFGKRRSLTINNMAGLEVTVDFKKLMKYCRIKHAWARTIHTFQGSEEQTVVYVVGKAGRQHWQHVYTAVTRGRCRVYVIAEESQLRNAIMKNSFPRKTRLKHFLQSKLSSSGAPPADFPSPRKSSGDSGGPSTPSASPLPVVTDHAMTNDVTWSEASSPDERTLTFAERWQLSSPDGVDTDDDLPKSRASKRTCGVNDDESPSKIFMVGESPQVSSRLQNLRLNNLIPRQLFKPTDNQET |
Background
| Function | FUNCTION: 5'-3' DNA helicase involved in DNA damage response by acting as an inhibitor of DNA end resection (PubMed:25617833, PubMed:26774285). Recruitment to single-stranded DNA (ssDNA) following DNA damage leads to inhibit the nucleases catalyzing resection, such as EXO1, BLM and DNA2, possibly via the 5'-3' ssDNA translocase activity of HELB (PubMed:26774285). As cells approach S phase, DNA end resection is promoted by the nuclear export of HELB following phosphorylation (PubMed:26774285). Acts independently of TP53BP1 (PubMed:26774285). Unwinds duplex DNA with 5'-3' polarity. Has single-strand DNA-dependent ATPase and DNA helicase activities. Prefers ATP and dATP as substrates (PubMed:12181327). During S phase, may facilitate cellular recovery from replication stress (PubMed:22194613). {ECO:0000269|PubMed:12181327, ECO:0000269|PubMed:22194613, ECO:0000269|PubMed:25617833, ECO:0000269|PubMed:26774285}. |
| Pathway | |
| Protein Families | RecD family, HELB subfamily |
| Tissue Specificity | Highly expressed in testis and thymus and weakly in liver, spleen, kidney and brain. {ECO:0000269|PubMed:12181327}. |
QC Data
| Note | Please contact us for QC Data |
| Product Image (Reference Only) |  |