Ritva Niemelä

702 citations

23 papers · 561 indexed · h-index 13

Co-authors: Ossi Renkonen Risto Renkonen Marja‐Leena Majuri Leena Penttilä Antti Seppo Jari Helin Jari Natunen Sinikka Tiisala
Topics: Glycosylation and Glycoproteins Research (20 papers)Carbohydrate Chemistry and Synthesis (14 papers)Cell Adhesion Molecules Research (6 papers)
Cited by: Immunology and Allergy Reproductive Medicine Immunology
Journals: Journal of Biological Chemistry Biochemistry FEBS Letters
Partner nations: Finland United States Czechia

In The Last Decade

Ritva Niemelä

23 papers receiving 535 citations

Peers

Countries citing papers authored by Ritva Niemelä

Since Specialization

Citations

This map shows the geographic impact of Ritva Niemelä's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ritva Niemelä with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ritva Niemelä more than expected).

Fields of papers citing papers by Ritva Niemelä

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ritva Niemelä. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ritva Niemelä. The network helps show where Ritva Niemelä may publish in the future.

Co-authorship network of co-authors of Ritva Niemelä

This figure shows the co-authorship network connecting the top 25 collaborators of Ritva Niemelä. A scholar is included among the top collaborators of Ritva Niemelä based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ritva Niemelä. Ritva Niemelä is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Targeting CD33+ Acute Myeloid Leukemia with GLK-33, a Lintuzumab–Auristatin Conjugate with a Wide Therapeutic Window 2024 ·Molecular Cancer Therapeutics ·Tero Satomaa,(unknown),Olli Aitio,Jukka O. Hiltunen,(unknown),Tuula Lähteenmäki,(unknown),Annamari Heiskanen,Anna‐Liisa Hänninen,Ritva Niemelä,Jari Helin,Heikki Kuusanmäki,(unknown),(unknown),Anni I. Nieminen,Emrah Yatkin,Caroline A. Heckman,Mika Kontro,Juhani Saarinen	5
2	Several polylactosamine-modifying glycosyltransferases also use internal GalNAc 1-4GlcNAc units of synthetic saccharides as acceptors 2002 ·Glycobiology ·Hanna Salo,Olli Aitio,(unknown),(unknown),S Toivonen,Leena Penttilä,Ritva Niemelä,(unknown),Eckart Grabenhorst,Risto Renkonen,O. Renkonen	8
3	Human 3-fucosyltransferases convert chitin oligosaccharides to products containing a GlcNAc 1-4(Fuc 1-3)GlcNAc 1-4R determinant at the nonreducing terminus 2001 ·Glycobiology ·Jari Natunen,Olli Aitio,Jari Helin,Hannu Maaheimo,Ritva Niemelä,Sami Heikkinen,O. Renkonen	11
4	The Acceptor and Site Specificity of α3-Fucosyltransferase V 2000 ·Journal of Biological Chemistry ·(unknown),S Toivonen,Jari Natunen,Ritva Niemelä,Heidi Salminen,Olli Aitio,(unknown),(unknown),Mika J. Välimäki,Jocelyne Alais,Claudine Augé,John B. Lowe,Ossi Renkonen,Risto Renkonen	13
5	Biosynthesis of sialylated and fucosylated selectin ligands of HL‐60 cells in vitro 1999 ·FEBS Letters ·Jari Natunen,(unknown),Jari Helin,Olli Aitio,Marja‐Leena Majuri,Ritva Niemelä,Risto Renkonen,Ossi Renkonen	2
6	Isolation and characterization of linear polylactosamines containing one and two site-specifically positioned Lewis x determinants: WGA agarose chromatography in fractionation of mixtures generated by random, partial enzymatic alpha3-fucosylation of pure polylactosamines 1999 ·Glycobiology ·Ritva Niemelä	12
7	Complementary Acceptor and Site Specificities of Fuc-TIV and Fuc-TVII Allow Effective Biosynthesis of Sialyl-TriLex and Related Polylactosamines Present on Glycoprotein Counterreceptors of Selectins 1998 ·Journal of Biological Chemistry ·Ritva Niemelä,Jari Natunen,Marja‐Leena Majuri,Hannu Maaheimo,Jari Helin,John B. Lowe,Ossi Renkonen,Risto Renkonen	81
8	The Centrally Acting β1,6N-Acetylglucosaminyltransferase (GlcNAc to Gal) 1998 ·Journal of Biological Chemistry ·Pirkko Mattila,Heidi Salminen,(unknown),(unknown),Hanna Salo,Ritva Niemelä,Minoru Fukuda,Ossi Renkonen,Risto Renkonen	19
9	Enzymatic synthesis of site-specifically (α 1–3)-fucosylated polylactosamines containing either a sialyl Lewis x, a VIM-2, or a sialylated and internally difucosylated sequence 1997 ·Carbohydrate Research ·Jarkko Räbinä,Jari Natunen,Ritva Niemelä,Heidi Salminen,(unknown),Olli Aitio,Hannu Maaheimo,Jari Helin,Ossi Renkonen	21
10	Improved enzymatic synthesis of a highly potent oligosaccharide antagonist of L‐selectin 1997 ·FEBS Letters ·Heidi Salminen,(unknown),Ritva Niemelä,Leena Penttilä,(unknown),(unknown),Catherine E. Costello,Ossi Renkonen	11
11	Oligosaccharide Constructs with Defined Structures That Inhibit Binding of Mouse Sperm to Unfertilized Eggs in Vitro 1995 ·Biochemistry ·Eveline S. Litscher,Kari Juntunen,Antti Seppo,Leena Penttilä,Ritva Niemelä,Ossi Renkonen,Paul M. Wassarman	119
12	Expression and function of α2,3‐sialyl‐ and α,3/l,4‐fucosyltransferases in colon adenocarcinoma cell lines: Role in synthesis of E‐selectin counter‐receptors 1995 ·International Journal of Cancer ·Marja‐Leena Majuri,Ritva Niemelä,Sinikka Tiisala,Ossi Renkonen,Risto Renkonen	82
13	Enzyme‐assisted synthesis of a bivalent high‐affinity dodecasaccharide inhibitor of mouse gamete adhesion The length of the chains carrying distal α1,3‐bonded galactose residues is critical 1995 ·FEBS Letters ·Ritva Niemelä,Leena Penttilä,Antti Seppo,Jari Helin,Anne Leppänen,Jarkko Räbinä,Lotta Uusitalo‐Malmivaara,Hannu Maaheimo,Jyrki Taskinen,Catherine E. Costello,Ossi Renkonen	13
14	Enzymic Synthesis of Octadecameric Saccharides of Multiply Branched Blood Group I-Type, Carrying Four Distal .alpha.1,3-Galactose or .beta.1,3-GlcNAc Residues 1995 ·Biochemistry ·Antti Seppo,Leena Penttilä,Ritva Niemelä,Hannu Maaheimo,Ossi Renkonen,(unknown)	20
15	Enzymatic synthesis of two lacto-N-neohexaose-related Lewis x heptasaccharides and their separation by chromatography on 1994 ·Glycobiology ·Jari Natunen,Ritva Niemelä,(unknown),(unknown),(unknown),Ossi Renkonen	14
16	α2,3‐Sialyl and α1,3‐fucosyltransferase‐dependent synthesis of sialyl Lewis x, an essential oligosaccharide present on L‐selectin counterreceptors, in cultured endothelial cells 1994 ·European Journal of Immunology ·Marja‐Leena Majuri,Mari Pinola,Ritva Niemelä,Sinikka Tiisala,Jari Natunen,Ossi Renkonen,Risto Renkonen	41
17	Enzymatic in vitro synthesis of radiolabeled pentasaccharides GlcNAcβ1-3(Galβ1-4GlcNAcβl-6)Galβ1-4GlcNAc/Glc and the isomeric Galβ1-4GlcNAcβ1-3(GlcNAcβ1-6)Galβ1-4GlcNAc/Glc 1992 ·Biochemistry and Cell Biology ·Ossi Renkonen,Anne Leppänen,Ritva Niemelä,(unknown),Jari Helin,Leena Penttilä,Hannu Maaheimo,Antti Seppo,Jaana Suopanki	7
18	Human serum contains a novel .beta.1,6-N-acetylglucosaminyltransferase activity that is involved in midchain branching of oligo(N-acetyllactosaminoglycans) 1991 ·Biochemistry ·Anne Leppänen,Leena Penttilä,Ritva Niemelä,Jari Helin,Antti Seppo,Sari Lusa,Ossi Renkonen	24
19	N-Acetyllactosaminooligosaccharides that contain the β-d-GlcpNAc-(1→6)-d-Gal or β-d-GlcpNAc-(1→6)-d-GalNAc sequences reveal reduction-sensitive affinites for wheat germ agglutinin 1991 ·Carbohydrate Research ·Ossi Renkonen,Leena Penttilä,Ritva Niemelä,(unknown),Anne Leppänen,Jari Helin,Antti Seppo,(unknown),Hannu Maaheimo	11
20	Wheat germ agglutinin chromatography of GlcNacβ1-3(GlcNAcβl-6)Gal and GlcNAcβ1-3(GlcNAcβ1-6)Galβ1-4GlcNAc, obtained by in vitro synthesis and by partial cleavage of teratocarcinoma poly-N-acetyllactosaminoglycans 1990 ·Biochemistry and Cell Biology ·Antti Seppo,Leena Penttilä,(unknown),Anne Leppänen,Ritva Niemelä,Jussi Jäntti,Jari Helin,Ossi Renkonen	23

About Ritva Niemelä

Ritva Niemelä is a scholar working on Immunology and Allergy, Organic Chemistry and Molecular Biology, having authored 23 papers that have together received 561 indexed citations. Recurring topics across this work include Glycosylation and Glycoproteins Research (20 papers), Carbohydrate Chemistry and Synthesis (14 papers) and Cell Adhesion Molecules Research (6 papers). The work is most often cited by research in Immunology and Allergy (107 citations), Reproductive Medicine (84 citations) and Immunology (174 citations). Ritva Niemelä has collaborated with scholars based in Finland, United States and Czechia. Frequent co-authors include Ossi Renkonen, Risto Renkonen, Marja‐Leena Majuri, Leena Penttilä, Antti Seppo, Jari Helin, Jari Natunen, Sinikka Tiisala, Hannu Maaheimo and Kari Juntunen. Their work appears in journals such as Journal of Biological Chemistry, Biochemistry and FEBS Letters.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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