Evidence map›Paper›PMID 32506493›Full record

ArticleImmunology2020

Landscape of variable domain of heavy-chain-only antibody repertoire from alpaca.

Zhui Tu, Xiaoqiang Huang, Jinheng Fu, Na Hu, Wei Zheng, Yanping Li, Yang Zhang

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.9field-weighted citation impact, top 12% 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, 36 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
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  8. Article
  9. Article
  10. Article
  11. Distinct types of VHHs in Alpaca.Frontiers in immunology · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Fully synthetic platform to rapidly generate tetravalent bispecific nanobody-based immunoglobulins.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  17. Iranian journal of basic medical sciences · 2022
    Article
  18. Article
  19. Article
  20. VInternational journal of molecular sciences · 2022
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Zhui TuState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.ORCID 0000-0003-3187-0132
Xiaoqiang HuangDepartment of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, USA.
Jinheng FuState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.
Na HuState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.
Wei ZhengDepartment of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, USA.
Yanping LiState Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.
Yang ZhangDepartment of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, USA.
Nanchang University · CNUniversity of Michigan · US

Funding

Structure-based functional annotation of microbial genomesR01AI134678 · NIAID · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Lydia Petra Freddolino, SCOTT J. HULTGREN · 2018 to 2026
$6.5M
I-TASSER based atomic-level protein structure predictionR01GM083107 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ZHANG, YANG · 2008 to 2019
$3.5M
Template-based docking refinement approach to protein-protein structure modelingR01GM116960 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ZHANG, YANG · 2016 to 2019
$1.4M
National Institute of Allergy and Infectious Diseases AI134678National Key R&D Program of China 2018YFC1602203National Natural Science Foundation of China 31301479National Natural Science Foundation of China 31860260National Science Foundation DBI1564756National Science Foundation IIS1901191NIAID NIH HHS R01 AI134678NIGMS NIH HHS GM083107NIGMS NIH HHS GM116960NIGMS NIH HHS R01 GM083107NIGMS NIH HHS R01 GM116960Research Program of State Key Laboratory of Food Science and Technology SKLF-ZZA-201912Research Program of State Key Laboratory of Food Science and Technology SKLF-ZZB-201925Science and Technology Innovation Platform Project of Jiangxi Province 20192BCD40001
6 · The paper itself

Abstract

Heavy-chain-only antibodies (HCAbs), which are devoid of light chains, have been found naturally occurring in various species including camelids and cartilaginous fish. Because of their high thermostability, refoldability and capacity for cell permeation, the variable regions of the heavy chain of HCAbs (VHHs) have been widely used in diagnosis, bio-imaging, food safety and therapeutics. Most immunogenetic and functional studies of HCAbs are based on case studies or a limited number of low-throughput sequencing data. A complete picture derived from more abundant high-throughput sequencing (HTS) data can help us gain deeper insights. We cloned and sequenced the full-length coding region of VHHs in Alpaca (Vicugna pacos) via HTS in this study. A new pipeline was developed to conduct an in-depth analysis of the HCAb repertoires. Various critical features, including the length distribution of complementarity-determining region 3 (CDR3), V(D)J usage, VJ pairing, germline-specific mutation rate and germline-specific scoring profiles (GSSPs), were systematically characterized. The quantitative data show that V(D)J usage and VHH recombination are highly biased. Interestingly, we found that the average CDR3 length of classical VHHs is longer than that of non-classical ones, whereas the mutation rates are similar in both kinds of VHHs. Finally, GSSPs were built to quantitatively describe and compare sequences that originate from each VJ pair. Overall, this study presents a comprehensive landscape of the HCAb repertoire, which can provide useful guidance for the modeling of somatic hypermutation and the design of novel functional VHHs or VHH repertoires via evolutionary profiles.

Indexed as

Amino Acid SubstitutionAnimalsBase SequenceCamelids, New WorldComplementarity Determining RegionsHigh-Throughput Nucleotide SequencingImmunoglobulin Heavy ChainsImmunoglobulin Variable RegionSequence Analysis, DNAComplementarity Determining RegionsImmunoglobulin Heavy ChainsImmunoglobulin Variable Regionantibody diversityhigh-throughput sequencingimmune repertoirenanobodyprotein design

Identifiers

PMID32506493
PMCPMC7450171
OpenAlexW3033700665

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.