Evidence map›Paper›PMID 11705900›Full record

ArticleInfection and immunity2001

Nonimmune binding of human immunoglobulin A (IgA) and IgG Fc by distinct sequence segments of the EibF cell surface protein of Escherichia coli.

C H Sandt, C W Hill

Open access · greenAbstract readComparative Study
In one paragraph

Article in Infection and immunity, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.5field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 50 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

C H SandtDepartment of Biochemistry and Molecular Biology, Penn State College of Medicine, Hershey, Pennsylvania 17033, USA. csandt@psu.edu
C W Hill
Penn State Milton S. Hershey Medical Center · US

Funding

ORGANIZATION AND REORGANIZATION OF THE E COLI GENOMER01GM016329 · NIGMS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI HILL, CHARLES W · 1985 to 1998
–
NIGMS NIH HHS GM16329
6 · The paper itself

Abstract

The eib genes of Escherichia coli encode surface-exposed proteins which bind immunoglobulins (Ig) such as the Fc fragment of human IgG (IgG Fc) in a nonimmune manner. The Eib proteins belong to a family which includes YadA of Yersinia, UspA2 of Moraxella, and DsrA of Haemophilus ducreyi. This family of surface-exposed proteins shares several features, such as the ability to impart resistance to human serum complement and a tendency to exist as stable multimers. Four genes, eibA, eibC, eibD and eibE, were previously identified and cloned from ECOR-9, a strain from the E. coli reference collection. EibC, -D, and -E bind human serum IgA in addition to IgG, but no IgA binding has been observed for EibA. Here, we report the cloning of a new eib gene, eibF, from a second strain of E. coli, ECOR-2. The product, EibF, has a relatively strong preference for IgA. Like the other eib genes, eibF attenuates serum sensitivity, occurs as a stable multimer, and is associated with a prophage. By subcloning portions of the eibA and eibF genes, we have identified distinct sequence segments sufficient to cause Ig binding, multimerization, and discrimination between IgA and IgG. The ability to multimerize is associated with a sequence close to the C terminus that is homologous to other family members such as YadA. Binding of IgG Fc is associated with a sequence that is highly conserved among all Eib proteins but otherwise unique. Binding of IgA is associated with a sequence of EibF that is not similar to any EibA sequence.

Indexed as

Amino Acid SequenceBinding SitesBlood Bactericidal ActivityCloning, MolecularEscherichia coliEscherichia coli ProteinsGenetic LinkageHumansImmunoglobulin AImmunoglobulin EImmunoglobulin Fc FragmentsImmunoglobulin GImmunoglobulin MMembrane ProteinsMolecular Sequence DataProtein BindingEibA protein, E coliEibF protein, E coliEscherichia coli ProteinsImmunoglobulin AImmunoglobulin EImmunoglobulin Fc FragmentsImmunoglobulin GImmunoglobulin MMembrane Proteins

Identifiers

PMID11705900
PMCPMC98814
OpenAlexW2123664895

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.