The phrase "a common classification of these" is correct and usable in written English.
It can be used when discussing categories or types of items, concepts, or phenomena that are widely recognized or accepted.
Example: "In the study of animals, a common classification of these is based on their habitat, such as terrestrial, aquatic, and aerial."
Alternatives: "a typical categorization of these" or "a standard classification of these".
More pertinently, there are clear functional differences between these proteins; for example, exchange of H+/Ca2+ (AtCAX1), H+/Mn2+ (AtCAX2), H+/Mg2+ (AtMHX), H+/K+ (AtCCX3), and Na+/Ca2+ (AtNCL) (Hirschi et al. 1996; Shaul et al. 1999; Pittman et al. 2004; Morris et al. 2008; Li et al. 2016), strongly argues against a common classification of these proteins as Na+/Ca2+ exchangers.
Towards a Common Classification of Ecosystem Services.
Commission Regulation (EU) No 31/2011 of 17 January 2011 amending annexes toRegulation (EC) No 1059/2003 of the European Parliament and of the Council on the establishment of a common classification of territorial units for statistics (NUTS).
A common classification of emotional constructs is based on the differentiation of trait and state emotions.
A common classification of such techniques considers three categories: low, intermediate, and high levels.
In the feed industry, there is a common classification of feeds into energy-rich and protein-rich feeds, whereby feed ingredients within each group could be substituted for each other at different percentages without necessarily affecting the animals being fed.
Vital registration and healthcare information systems exist in all member states, and provide an opportunity to produce direct estimates of MMR using a common classification of causes of death.
But a common classification of distance, at whatever level either 15 minutes, half an hour or 1 hour done, resulted in absence or low number of either home deliveries in Kathmandu municipality or hospital deliveries in Dhading VDCs.
Commission Regulation (EU) No 1046/2012 of 8 November 2012 implementing Regulation (EC) No 1059/2003 of the European Parliament and of the Council on the establishment of a common classification of territorial units for statistics (NUTS) as regards the transmission of the time series for the new regional breakdown (OJ L 310, 9.11.2012, p. 34).
Instead of selecting the most common classification of these hits (like in method i above), the sequence was assigned to the hit that had the smallest global distance in a distance matrix based on MUSCLE [41] alignments of the best hits.
Instead of transforming the data into a common classification scheme for each one of these fields, we create CDEs that record each field definition from each data source.
