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Conserved domains on  [gi|2576375|gb|AAB82314|]
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TrfA [Expression vector pJB658]

Protein Classification

replication initiation protein( domain architecture ID 139766)

replication initiation protein is essential for plasmid DNA replication

CATH:  1.10.10.10
Gene Ontology:  GO:0006270|GO:0003887
SCOP:  4000166

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
RPA super family cl19398
Replication initiator protein A; Members of this family of bacterial proteins are ...
102-382 0e+00

Replication initiator protein A; Members of this family of bacterial proteins are single-stranded DNA binding proteins that are involved in DNA replication, repair and recombination.


The actual alignment was detected with superfamily member pfam07042:

Pssm-ID: 473167  Cd Length: 282  Bit Score: 613.57  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2576375    102 KRKTAGEDLAKQVSEAKQAALLKHTKQQIKEMQLSLFDIAPWPDTMRAMPNDTARSALFTTRNKKIPREALQNKVIFHVN 181
Cdd:pfam07042   1 KKKTAGEDLAEKVSEAKQAALLKHTKQQIKDMQLSLFDIAPWPDSHAALPNDFARSAIFTTRNKKIPREALQGKSIFHVN 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2576375    182 KDVKITYTGVELRADDDELVWQQVLEYAKRTPIGEPITFTFYELCQDLGWSINGRYYTKAEECLSRLQATAMGFTSDRVG 261
Cdd:pfam07042  81 KDVEITYTGIELRADDDELVFAQVLEYAKGTAIGEPISFTFYELCQDLDWSINGRYYTKAEECLSRLQASAMGFSSDRIG 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2576375    262 HLESVSLLHRFRVLDRGKKTSRCQVLIDEEIVVLFAGDHYTKFTWEKYRKLSPT-ARRMFDYFSSHREPYPLKLETFRLM 340
Cdd:pfam07042 161 HLESVSLIHRFRVLDRGKKTSRCQVEIDAEIVVLFAGDHYTKFIWEKYRKLSPNrAGRMFDYFASHKEPYPLKLETFRLM 240
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|..
gi 2576375    341 CGSDSTRVKKWREQVGEACEELRGSGLVEHAWVNDDLVHCKR 382
Cdd:pfam07042 241 CGSDSTRPKKWREQVGEACDELRENGLVEHAWVNDDLVHCKR 282
 
Name Accession Description Interval E-value
TrfA pfam07042
TrfA protein; This family consists of several bacterial TrfA proteins. The trfA operon of ...
102-382 0e+00

TrfA protein; This family consists of several bacterial TrfA proteins. The trfA operon of broad-host-range IncP plasmids is essential to activate the origin of vegetative replication in diverse species. The trfA operon encodes two ORFs. The first ORF is highly conserved and encodes a putative single-stranded DNA binding protein (Ssb). The second, trfA, contains two translational starts as in the IncP alpha plasmids, generating related polypeptides of 406 (TrfA1) and 282 (TrfA2) amino acids. TrfA2 is very similar to the IncP alpha product, whereas the N-terminal region of TrfA1 shows very little similarity to the equivalent region of IncP alpha TrfA1. This region has been implicated in the ability of IncP alpha plasmids to replicate efficiently in Pseudomonas aeruginosa.


Pssm-ID: 115680  Cd Length: 282  Bit Score: 613.57  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2576375    102 KRKTAGEDLAKQVSEAKQAALLKHTKQQIKEMQLSLFDIAPWPDTMRAMPNDTARSALFTTRNKKIPREALQNKVIFHVN 181
Cdd:pfam07042   1 KKKTAGEDLAEKVSEAKQAALLKHTKQQIKDMQLSLFDIAPWPDSHAALPNDFARSAIFTTRNKKIPREALQGKSIFHVN 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2576375    182 KDVKITYTGVELRADDDELVWQQVLEYAKRTPIGEPITFTFYELCQDLGWSINGRYYTKAEECLSRLQATAMGFTSDRVG 261
Cdd:pfam07042  81 KDVEITYTGIELRADDDELVFAQVLEYAKGTAIGEPISFTFYELCQDLDWSINGRYYTKAEECLSRLQASAMGFSSDRIG 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2576375    262 HLESVSLLHRFRVLDRGKKTSRCQVLIDEEIVVLFAGDHYTKFTWEKYRKLSPT-ARRMFDYFSSHREPYPLKLETFRLM 340
Cdd:pfam07042 161 HLESVSLIHRFRVLDRGKKTSRCQVEIDAEIVVLFAGDHYTKFIWEKYRKLSPNrAGRMFDYFASHKEPYPLKLETFRLM 240
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|..
gi 2576375    341 CGSDSTRVKKWREQVGEACEELRGSGLVEHAWVNDDLVHCKR 382
Cdd:pfam07042 241 CGSDSTRPKKWREQVGEACDELRENGLVEHAWVNDDLVHCKR 282
 
Name Accession Description Interval E-value
TrfA pfam07042
TrfA protein; This family consists of several bacterial TrfA proteins. The trfA operon of ...
102-382 0e+00

TrfA protein; This family consists of several bacterial TrfA proteins. The trfA operon of broad-host-range IncP plasmids is essential to activate the origin of vegetative replication in diverse species. The trfA operon encodes two ORFs. The first ORF is highly conserved and encodes a putative single-stranded DNA binding protein (Ssb). The second, trfA, contains two translational starts as in the IncP alpha plasmids, generating related polypeptides of 406 (TrfA1) and 282 (TrfA2) amino acids. TrfA2 is very similar to the IncP alpha product, whereas the N-terminal region of TrfA1 shows very little similarity to the equivalent region of IncP alpha TrfA1. This region has been implicated in the ability of IncP alpha plasmids to replicate efficiently in Pseudomonas aeruginosa.


Pssm-ID: 115680  Cd Length: 282  Bit Score: 613.57  E-value: 0e+00
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2576375    102 KRKTAGEDLAKQVSEAKQAALLKHTKQQIKEMQLSLFDIAPWPDTMRAMPNDTARSALFTTRNKKIPREALQNKVIFHVN 181
Cdd:pfam07042   1 KKKTAGEDLAEKVSEAKQAALLKHTKQQIKDMQLSLFDIAPWPDSHAALPNDFARSAIFTTRNKKIPREALQGKSIFHVN 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2576375    182 KDVKITYTGVELRADDDELVWQQVLEYAKRTPIGEPITFTFYELCQDLGWSINGRYYTKAEECLSRLQATAMGFTSDRVG 261
Cdd:pfam07042  81 KDVEITYTGIELRADDDELVFAQVLEYAKGTAIGEPISFTFYELCQDLDWSINGRYYTKAEECLSRLQASAMGFSSDRIG 160
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2576375    262 HLESVSLLHRFRVLDRGKKTSRCQVLIDEEIVVLFAGDHYTKFTWEKYRKLSPT-ARRMFDYFSSHREPYPLKLETFRLM 340
Cdd:pfam07042 161 HLESVSLIHRFRVLDRGKKTSRCQVEIDAEIVVLFAGDHYTKFIWEKYRKLSPNrAGRMFDYFASHKEPYPLKLETFRLM 240
                         250       260       270       280
                  ....*....|....*....|....*....|....*....|..
gi 2576375    341 CGSDSTRVKKWREQVGEACEELRGSGLVEHAWVNDDLVHCKR 382
Cdd:pfam07042 241 CGSDSTRPKKWREQVGEACDELRENGLVEHAWVNDDLVHCKR 282
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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