Cited by 345Cellular transport and secretionGlycosylation and Glycoproteins ResearchAutophagy in Disease and Therapy

Isolation and characterization of human lysosomal membrane glycoproteins, h-lamp-1 and h-lamp-2. Major sialoglycoproteins carrying polylactosaminoglycan.

Open access
Carlsson, S R, Roth, J, Piller, F, Fukuda, M·1988·Journal of Biological Chemistry

Abstract

Two major lysosomal membrane glycoproteins with apparent Mr approximately 120,000 were purified from chronic myelogenous leukemia cells. These glycoproteins are major sialoglycoproteins containing polylactosaminoglycan and represent approximately 0.1-0.2% of total cell proteins. A monoclonal antibody specific to one of the glycoproteins and polyclonal antibodies specific to the other glycoprotein were obtained. Immunoelectron microscopic examination of HeLa cells revealed that these two glycoproteins mainly reside in lysosomes and multivesicular bodies. Immunoprecipitation experiments showed that a number of different cell lines express these glycoproteins. However, the apparent molecular weights differed between cell lines; this probably represents differences in the amount of polylactosaminoglycan expressed by each cell line. As shown in the following paper (Fukuda, M., Viitala, J., Matteson, J., and Carlsson, S. R. (1988) J. Biol. Chem. 263, 18920-18928) one of the glycoproteins is very homologous to that of a mouse counterpart, m-lamp-1. The human form of this glycoprotein is therefore named human lamp-1 (h-lamp-1), while the other glycoprotein, to which the monoclonal antibody was made, is called human lamp-2 (h-lamp-2). Pulse-chase labeling experiments detected that h-lamp-1 and h-lamp-2 are produced first as precursor forms of 87.5 and 84 kDa, and treatment with endo-beta-N-acetylglucosaminidase H (endo-H) or endo-beta-N-acetylglucosaminidase F (endo-F) reduced their m…

Integrity signals

Registry

Crossref · 10.1016/s0021-9258(18)37369-1

Cites

55 of 55 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Carlsson, S. R., Roth, J., Piller, F., & Fukuda, M.
Affiliations
Sanford Burnham Prebys Medical Discovery Institute (US)
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1988-12
Volume
263
Issue
35
Pages
18911-18919
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1525792717
Cited by
345
References
55
Citations by year
2026: 5 · 2025: 4 · 2024: 4 · 2023: 7 · 2022: 6 · 2021: 5 · 2020: 7 · 2019: 4 · 2018: 2 · 2017: 4 · 2016: 6 · 2015: 6 · 2014: 8 · 2013: 7 · 2012: 10
FWCI
4.22
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (CA 28896)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glycosylation and Glycoproteins Research
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
Keywords
lysosomal membrane glycoprotein, LAMP1, LAMP2, lysosomes, multivesicular bodies, sialoglycoproteins, N-glycosylation, sialic acid, monoclonal antibodies, endo-beta-N-acetylglucosaminidase H, HeLa cells
MeSH terms
Amino Acids, Amino Sugars, Antibodies, Monoclonal, Carbohydrates, Cell Line, Glycoside Hydrolases, Humans, Lysosomes, Membrane Glycoproteins, Molecular Weight, Polymers, Polysaccharides, Sialoglycoproteins, Leukemia, Myeloid, Acute, Antigens, CD, Mannosyl-Glycoprotein Endo-beta-N-Acetylglucosaminidase, Lysosomal Membrane Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review