Human upstream binding factor Ab [Titer] in Serum by Immunofluorescence   54004-7

LOINC Code


LOINC code54004-7
nameHuman upstream binding factor Ab [Titer] in Serum by Immunofluorescence
descriptionThis entity has two names: "nucleolar organizing region (NOR) 90" versus "human upstream binding factor (hUBF)". Both names are right, and the literature looking for the antibody in autoimmune patients almost uniformly includes both names and the historical context. NOR90 stuck because it was called that by the author of the original finding in autoimmune patients (Rodriguez-Sanchez, et al, 1987), but a few years later (1994), the antigen was found to be identical to already characterized hUBF. So we are stuck with the 2 names. hUBF is more technically specific, and at least one recent review calls it "anti-hUBF, formerly anti-NOR 90" (Journal of Dermatology 2010; 37: 42-53). So we will use that as its primary name.
statusACTIVE

Fully-Specified Name

componentHuman upstream binding factor Ab
propertyTitr  =  Dilution Factor (Titer)
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemSer  =  Serum
scaleSemiQn
methodIF  =  Immune Fluorescence:  Encompasses DFA, IFA, FA. Usually applies to cells and smears examined microscopically so that both the “where” and the “what” can be assessed, but can also be used on fluids in a way similar to ELISA. Does not include Cell binding assays (see CBA IFA above).

Additional Names

short namehUBF Ab Titr Ser IF

Basic Attributes

classSERO
type1  Laboratory
order vs. observationBoth
example UCUM units{titer}
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)
example unitTiter

Associated Observations

LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations.

History/Usage

first released
last updated2.75
last change typeMAJ  - change to name field other than Component;

Related Names

ABS
Aby
ACIF
Antby
Anti
Antibodies
Antibody
Anticomplement Immunofluorescence
Autoantibodies
Autoantibody
Bind
Dilution factor
Dilution Factor (Titer)
FA
Fac
Fact
Fluorescent antibody
Fluoresent
hUBF
Human upstream binding transcription factor
IFA
Immune fluorescence
Immunoflour
Immunofluor
Immunofluorescence
NOR 90
NOR90
NOR-90
Nucleolus organizer regions
Point in time
Random
Serology
Serum
SmQn
SR
Time Resolved Fluorescence
Titer
Titered
Titre
TRF
Ttr
UBTF

Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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