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Protein

DNA nucleotidylexotransferase

Gene

DNTT

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Template-independent DNA polymerase which catalyzes the random addition of deoxynucleoside 5'-triphosphate to the 3'-end of a DNA initiator. One of the in vivo functions of this enzyme is the addition of nucleotides at the junction (N region) of rearranged Ig heavy chain and T-cell receptor gene segments during the maturation of B- and T-cells.By similarity

Catalytic activityi

Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1).By similarity

Cofactori

Mg2+By similarityNote: Can also utilize other divalent cations, such as Mn2+ and Co2+ (in vitro).By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi343MagnesiumBy similarity1
Metal bindingi345MagnesiumBy similarity1
Metal bindingi433MagnesiumBy similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionNucleotidyltransferase, Transferase
Biological processTerminal addition
LigandMagnesium, Metal-binding

Enzyme and pathway databases

BRENDAi2.7.7.31. 908.

Names & Taxonomyi

Protein namesi
Recommended name:
DNA nucleotidylexotransferase (EC:2.7.7.31)
Alternative name(s):
Terminal addition enzyme
Terminal deoxynucleotidyltransferase
Short name:
TDT
Short name:
Terminal transferase
Gene namesi
Name:DNTT
Synonyms:TDT
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
Proteomesi
  • UP000009136 Componenti: Chromosome 26

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Nucleus

Pathology & Biotechi

Chemistry databases

ChEMBLiCHEMBL5289.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002187901 – 509DNA nucleotidylexotransferaseAdd BLAST509

Proteomic databases

PaxDbiP06526.
PRIDEiP06526.

Expressioni

Gene expression databases

BgeeiENSBTAG00000020427.

Interactioni

Subunit structurei

Interacts with PRP19 and DNTTIP1. Forms a ternary complex with DNTTIP2 and core histone. Released from this complex by PCNA. Interacts with TRERF1.By similarity

Protein-protein interaction databases

BioGridi158482. 1 interactor.
STRINGi9913.ENSBTAP00000051460.

Chemistry databases

BindingDBiP06526.

Structurei

3D structure databases

ProteinModelPortaliP06526.
SMRiP06526.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini27 – 124BRCTPROSITE-ProRule annotationAdd BLAST98

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni151 – 509Mediates interaction with DNTTIP2By similarityAdd BLAST359
Regioni258 – 262Involved in DNA bindingBy similarity5
Regioni333 – 338Deoxynucleoside triphosphate bindingBy similarity6
Regioni342 – 345Deoxynucleoside triphosphate bindingBy similarity4
Regioni448 – 449Deoxynucleoside triphosphate bindingBy similarity2

Sequence similaritiesi

Belongs to the DNA polymerase type-X family.Curated

Phylogenomic databases

eggNOGiKOG2534. Eukaryota.
COG1796. LUCA.
GeneTreeiENSGT00530000063002.
HOGENOMiHOG000263600.
HOVERGENiHBG003670.
InParanoidiP06526.
KOiK00977.
TreeFamiTF103012.

Family and domain databases

CDDicd00027. BRCT. 1 hit.
cd00141. NT_POLXc. 1 hit.
Gene3Di1.10.150.110. 1 hit.
3.30.210.10. 1 hit.
3.40.50.10190. 1 hit.
InterProiView protein in InterPro
IPR001357. BRCT_dom.
IPR036420. BRCT_dom_sf.
IPR002054. DNA-dir_DNA_pol_X.
IPR019843. DNA_pol-X_BS.
IPR010996. DNA_pol_b-like_N.
IPR028207. DNA_pol_B_palm_palm.
IPR018944. DNA_pol_lambd_fingers_domain.
IPR027421. DNA_pol_lamdba_lyase_dom_sf.
IPR037160. DNA_Pol_thumb_sf.
IPR022312. DNA_pol_X.
IPR029398. PolB_thumb.
IPR027292. TdT.
IPR001726. TdT/Mu.
PfamiView protein in Pfam
PF00533. BRCT. 1 hit.
PF14792. DNA_pol_B_palm. 1 hit.
PF14791. DNA_pol_B_thumb. 1 hit.
PF10391. DNA_pol_lambd_f. 1 hit.
PF14716. HHH_8. 1 hit.
PIRSFiPIRSF000817. DNA_NT. 1 hit.
PIRSF501175. TDT. 1 hit.
PRINTSiPR00869. DNAPOLX.
PR00871. DNAPOLXTDT.
SMARTiView protein in SMART
SM00292. BRCT. 1 hit.
SM00483. POLXc. 1 hit.
SUPFAMiSSF47802. SSF47802. 1 hit.
SSF52113. SSF52113. 1 hit.
PROSITEiView protein in PROSITE
PS50172. BRCT. 1 hit.
PS00522. DNA_POLYMERASE_X. 1 hit.

Sequencei

Sequence statusi: Complete.

P06526-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDPLCTASSG PRKKRPRQVG ASMASPPHDI KFQNLVLFIL EKKMGTTRRN
60 70 80 90 100
FLMELARRKG FRVENELSDS VTHIVAENNS GSEVLEWLQV QNIRASSQLE
110 120 130 140 150
LLDVSWLIES MGAGKPVEIT GKHQLVVRTD YSATPNPGFQ KTPPLAVKKI
160 170 180 190 200
SQYACQRKTT LNNYNHIFTD AFEILAENSE FKENEVSYVT FMRAASVLKS
210 220 230 240 250
LPFTIISMKD TEGIPCLGDK VKCIIEEIIE DGESSEVKAV LNDERYQSFK
260 270 280 290 300
LFTSVFGVGL KTSEKWFRMG FRSLSKIMSD KTLKFTKMQK AGFLYYEDLV
310 320 330 340 350
SCVTRAEAEA VGVLVKEAVW AFLPDAFVTM TGGFRRGKKI GHDVDFLITS
360 370 380 390 400
PGSAEDEEQL LPKVINLWEK KGLLLYYDLV ESTFEKFKLP SRQVDTLDHF
410 420 430 440 450
QKCFLILKLH HQRVDSSKSN QQEGKTWKAI RVDLVMCPYE NRAFALLGWT
460 470 480 490 500
GSRQFERDIR RYATHERKMM LDNHALYDKT KRVFLKAESE EEIFAHLGLD

YIEPWERNA
Length:509
Mass (Da):58,296
Last modified:May 1, 2007 - v2
Checksum:iEE5262617BA5D207
GO

Sequence cautioni

The sequence AAA87354 differs from that shown. Reason: Erroneous initiation.Curated
The sequence CAA27734 differs from that shown. Reason: Erroneous initiation.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X04122 mRNA. Translation: CAA27734.1. Different initiation.
BC114820 mRNA. Translation: AAI14821.1.
M26146 mRNA. Translation: AAA87354.1. Different initiation.
PIRiA23595.
RefSeqiNP_803461.1. NM_177495.2.
XP_005225486.1. XM_005225429.2.
UniGeneiBt.329.

Genome annotation databases

EnsembliENSBTAT00000027223; ENSBTAP00000027223; ENSBTAG00000020427.
GeneIDi281120.
KEGGibta:281120.

Similar proteinsi

Entry informationi

Entry nameiTDT_BOVIN
AccessioniPrimary (citable) accession number: P06526
Secondary accession number(s): A4FUF8
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 1, 1988
Last sequence update: May 1, 2007
Last modified: November 22, 2017
This is version 144 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families